Sang Fei Consumer Communications CTS616 GSM/GPRS/EDGE/UMTS/LTE Digital Mobile Phone with Bluetooth and WiFi User Manual San Francisco

Shenzhen Sang Fei Consumer Communications Co., Ltd. GSM/GPRS/EDGE/UMTS/LTE Digital Mobile Phone with Bluetooth and WiFi San Francisco

VQRCTS616 Mobile Phone User Manual

1 Philips S616 Mobile Phone User Manual 2015/09/22
2 LEGAL INFORMATION Copyright © 2015 Shenzhen Sang Fei Consumer Communications Co., Ltd. All rights reserved. No part of this publication may be quoted, reproduced, translated or used in any form or by any means, electronic or mechanical, including photocopying and microfilm, without the prior written permission of Shenzhen Sang Fei Consumer Communications Co., Ltd . Shenzhen Sang Fei Consumer Communications Co., Ltd Corporation reserves the right to make modifications on print errors or update specifications in this guide without prior notice. Version No.: V1.0 Edition Time: 2015/09/22
3 Contents Getting Started ......................................................... 6 Overview ........................................................................ 6 Key Explainrd ................................................................. 6 Starting up ..................................................................... 7 Switching Your Phone On/Off......................................... 8 Getting Around Your Phone ........................................... 9 Phone Calls ............................................................ 11 Calling from the Phone ................................................. 11 Calling from Your Contacts .......................................... 11 Calling from a Text Message ........................................ 11 Receiving Calls ............................................................ 12 Contacts ................................................................. 12 Messaging .............................................................. 13 The Message Box ........................................................ 13 Sending an Message ................................................... 13 Message Settings ........................................................ 13 Touch Input Settings .................................................... 14 Getting Connected to the Internet ........................ 14 Adding a New Network Connection ..................... 14 Turning On Wi-Fi .......................................................... 15
4 Connecting to a Wi-Fi Network .................................... 15 Checking the Wi-Fi Network Status ............................. 15 USB tethering & portable hotspot................................. 15 Browsing the Internet ............................................ 16 Browsing Options ........................................................ 17 Using Bookmarks ........................................................ 17 Making the Most of Multimedia ............................. 17 Camera ....................................................................... 17 FM ............................................................................... 17 Playing Music .............................................................. 18 Gallery ......................................................................... 18 Making Voice Memos .................................................. 18 Sorting out Your Phone Settings .......................... 18 Bluetooth ..................................................................... 18 Setting Date and Time ................................................. 19 Display Settings ........................................................... 19 Sound &notification Settings ........................................ 20 Language Settings ....................................................... 20 Security Settings.......................................................... 20 Managing Your Device Memory ................................... 21 Reset to Factory Settings ............................................ 21 Applications ................................................................. 21 Clock ........................................................................... 21 Calculator .................................................................... 21 For Your Safety ...................................................... 22
5 General Safety ............................................................. 22 Distraction .................................................................... 23 Product Handling ......................................................... 23 Electrical Safety ........................................................... 26 Interference .................................................................. 27 Explosive Environments ............................................... 28 FCC Compliance .......................................................... 29 Health and safety information ....................................... 30 Common fault diagnosis ............................................... 31
6 Getting Started Overview Key Explainrd Key Function Power Key • Hold to switch audio profiles, or to turn on or off Airplane mode, or to power off. • Press to switch your phone to Sleep mode. • Press to wake up your phone.
7 Key Function Home Key • Press to return to the Home Screen from any application or screen. • Hold to see recently used applications. Menu Key Press to get the options for the current screen. Back Key Press to go to the previous screen. Volume Keys Press or hold to turn the volume up or down. Starting up Status and Notification lcons Your phone will tell you exactly what’s going on by showing you simple icons. Here’s what they mean USB connected Missed call Airplane mode Signal strength Battery charge New message Meeting mode Wi-Fi network Alarm set Earphone insert Silent mode New Wi-Fi network detected Bluetooth icon USB debugging connected
8 Installing the SIM/SD Card and Battery Switch off your phone before installing or replacing the battery, SIM, or memory card. 1.Remove the back cover 2.Hold the SIM card with the cut corner oriented as shown and slip it into the card holder. 3.Insert the memory card into the card slot with the metal contacts facing down until it inserts to the right position. 4.Insert the battery by aligning the gold contacts on the battery with the gold contacts in the battery compartment. Gently push down on the battery until it clicks into place. 5.Press the cover gently back into place until you hear a click. Charging the Battery When you first get your new phone you’ll need to charge the battery. Connect the adapter to the charger jack. Ensure that the adapter is inserted with the correct orientation. Do not force the connector into the charger jack. Connect the charger to a standard AC wall outlet. Disconnect the charger when the battery is fully charged. Switching Your Phone On/Off Make sure the SIM card is in your device and the battery is charged. 1.Hold Power Key to switch on your phone. 2.To switch it off, hold Power Key to get the phone options. Select Power off, and then tap OK.
9 Setting Up Your Phone for the First Time When you first power on your phone after you purchase it or reset it to factory settings (see chapter Sorting out Your Phone Settings – Privacy: Reset to Factory Settings), you need to do some settings before using it. Switching to Sleep Mode To save battery power, Sleep Mode suspends your device to a low-power-consumption state while the display is off. Your device also goes into Sleep Mode by itself when the display is automatically turned off after a certain period of time. You can start sleep mode by the following method. Press Power Key to switch to Sleep Mode. Waking Up Your Phone Press Power Key to activate your screen display. Tap the icon, drag to the up. NOTE: If you have set an unlock pattern, PIN or password for your phone (see chapter Sorting out Your Phone Settings – Security Settings) you’ll need to draw the pattern or enter the PIN/password to unlock your screen. Getting Around Your Phone Touch Control You can use finger gestures to control your phone. The controls on your touch-screen change dynamically depending on the tasks you’re performing. Tap the buttons, icons, or applications to select items or to open applications.
10 Flick the screen to scroll up, down, left or right. Point, drag and drop to move particular items across the screen. Double-tap the screen to zoom in/out an image. NOTE: You can view the phone screen in portrait or landscape orientation simply by holding it upright or turning it on its side. Not all screens are viewable in landscape. Home Screen In the Home screen, besides the shortcut icon is displayed, you can also set your own wallpaper, add the widgets or application shortcuts you need, or remove them as you like. Choosing Your Wallpaper Press Home Key to return to the Home Screen. Tap Menu Key and select Wallpaper. Tap Gallery, Live Wallpapers, Video Wallpaper, or Wallpapers and choose the image or animation you want to use as the wallpaper. Some cropping may be needed for Gallery images. Tap Set wallpaper. Adding/ Removing items to Your Home Screen Press Home Key > touch and hold the icon until the main screen appears, move the application icon to the idle position, release the finger. Press Home Key to return to the Home Screen. Tap and hold the item you want to delete until the remove icon appears on the top of the screen. Drag the item to the remove icon and release your finger when the item
11 turns red. Phone Calls There are many ways to make a call with your phone. And they’re all easy to do. Calling from the Phone Press Home key > Phone or tap on the Home Screen. Enter the phone number using the on-screen keypad. Tap to delete wrong digits. Tap the dial icon. TIPS: To make international calls, hold to enter the “+”. Calling from Your Contacts Press Home key > People. Slide your finger to scroll the contacts list and tap the contact name you want to call, when the contact details appear, click on the number; choose the SIM card to dial. You can search for a contact by tapping on the screen. Calling from a Text Message If a text message contains a phone number that you want to call, you can make the call while viewing the text message. Press Home key > Messaging. Tap the conversation and then find the message that contains the phone number you need.
12 Tap the message, the phone will list the options. Receiving Calls Tap the icon, drag to right to answer the call. Tap the icon, drag to left to reject the call. During a call, you can mute your microphone so that the person you are speaking to cannot hear you, but you can still hear them. Tap to turn your microphone off. To turn your microphone back on, tap . Tap during a call to turn the speakerphone on. Tap again to turn off the speakerphone. Tap to finish a call. Contacts You can add contacts on your phone and synchronize them with the contacts in your Google account or other accounts that support contact syncing. To see your contacts, Press Home key > People. Tap from the Contacts Screen.Choose the storage location to save the contact.Enter the contact name, phone numbers, and other information, and then save it. Tap on the Contacts Screen.Input the contact name you want to search for.The contacts matched will be listed.
13 Messaging Your SMS (text message) and MMS (multimedia messaging service) are combined into one menu in Home Key > Messaging. The Message Box Instead of an inbox and outbox, your phone organizes all Messaging you sent and received into one box, where Messaging exchanged with the same number are grouped into one message thread in the Messaging Screen. You can tap a thread to see the conversation you have had with someone. Sending an Message Press Home key > Messaging.Tap to create new message. Enter the recipient’s number or name. As you type, matching contacts will appear. Tap a suggested contact to add as a recipient. You can also tap to select recipients from the contacts. Tap Type text message and type your message. Tap Menu Key to insert quick text or contact. If you are sending an MMS, tap Menu Key to add a subject, or tap to attach pictures, videos, audio, or slideshow. Tap to send your message. NOTE: Add an attachment to text message and it will be converted into an MMS automatically. Likewise if you remove all attachments and the subject from an MMS, it’ll automatically become a text message. Message Settings The phone’s message settings are pre-configured for you to use
14 immediately. To change them, tap Menu Key > Settings from the Messaging Screen. NOTE: From SMS/MMS settings screen tap Menu Key > Restore default settings to change the message settings back to the original. Touch Input Settings Choose the touch input settings by press Home key > settings > Language & input from Home Screen. In the Keyboard & input methods section, you can choose the settings that you need. Getting Connected to the Internet Your phone’s impressive networking capabilities allow you to access the Internet or your corporate network with ease. You can use default connection settings to connect to the Internet via your mobile network, or Wi-Fi. The network connection can be enabled /disabled manually. Just press Home key > Settings > SIM cards > Cellular Data. To choose SIM to use for cellular data. Adding a New Network Connection To get connected via your mobile network you need a data plan with your service provider. Also if the networks settings are not pre-configured on your phone, please contact your provider to get the necessary information. You can view settings by pressing Home key > Settings > More > Cellular networks > Access Point Names.
15 Turning On Wi-Fi Wi-Fi provides wireless Internet access over distances of up to about 300 feet. Connecting to a Wi-Fi Network Press Home key > Settings > Wi-Fi. Click next to the Wi-Fi menu to turn it on, click you can turn off the Wi-Fi function.Tap an access point to connect to it. NOTE: If security features are implemented, you’ll need to enter a password. Checking the Wi-Fi Network Status You can check the Wi-Fi network by looking at the icon in the status bar. USB tethering & portable hotspot Share your phone’s data connection via USB or as a portable Wi-Fi hotspot. Enabling USB tethering TIPS: The PC accesses the Internet via the phone’s mobile network. Therefore, set up the networks connection correctly before you try to use the phone as a modem. Disabling USB tethering Press Home Key > Settings > More > Tethering & portable hotspot and clear the USB tethering check box.
16 You can also just pull out the USB cable. Enabling the Wi-Fi Hotspot You can use the phone as a portable WLAN router, to share your phone’s internet connection with one or more PC or other devices. NOTE: When the portable Wi-Fi hotspot function is enabled, you can’t use your phone’s applications to access the internet via its Wi-Fi connection. You can configure the Wi-Fi hotspot as follows: Press Home Key > Settings > More > Tethering & portable hotspot, click next to the Wi-Fi hotspot to turn it on. Tap Set up Wi-Fi hotspot to set up portable Wi-Fi hotspot. Now you can find the hotspot on other devices and connect to. Disabling the Wi-Fi Hotspot Press Home Key > Settings > More > Tethering & portable hotspot and click next to the Wi-Fi hotspot to turn it off. Browsing the Internet You can use your phone to get on the Internet via a network or Wi-Fi connection. Press Home Key > Browser. There are different ways to open web pages: Tap the address bar to enter the website you want to browse. Then tap on the touch keyboard. Tap Menu Key > Bookmarks/History and select a bookmark or history to
17 open. Browsing Options When you browse the Web, you can also do the following: Press Menu Key > Close and select Quit to exit. Press Menu Key > Bookmarks/History and select a bookmark or history to open. Press Menu Key > Settings to configure browser settings. Using Bookmarks If you know the Web address, you can manually add bookmarks. To bookmark a web page, open it and tap Menu Key > Save to bookmarks. Give the bookmark a name and save it. Making the Most of Multimedia Camera Your phone has camera function. Open it by pressing Home Key > Camera. Tap to take a picture. To view it, just tap the picture in the right corner of the screen. FM With the FM Radio, you can search for radio channels, listen to them, and save them on your phone. Note that the quality of the radio broadcast depends on the coverage of the radio station in your area. The wired headset works as an antenna, so always connect the headset when using the radio. To tune in, plug your headset into your phone.
18 Press Home key > FM Radio. Playing Music You can play digital audio files from your phone’s memory card in Music. Before playing music, you need to copy music files to memory card location. Press Home Key > Music to open the Music Screen. Click the Music category label > music files to start playing. Adjust the volume with Volume Keys. Gallery Press Home Key > Gallery. You can use Gallery to view pictures and play videos. You can also do some basic editing of your pictures – such as setting them as wallpaper or contact photo, and sharing with friends. Making Voice Memos Sound Recorder enables you to record your voice memos. Press Home Key > Sound Recorder. Tap to start recording. Tap to stop recording. Tap to play back the voice recording. Save the voice recording after stop, or tap Discard to delete the recording. Sorting out Your Phone Settings Bluetooth Bluetooth is a short-range wireless communication technology. Phones
19 or other devices with Bluetooth capabilities can exchange information wirelessly within a distance of about 10 meters. The Bluetooth devices must be paired before the communication is performed. Press Home Key > Settings > Bluetooth. Click next to the Bluetooth menu to turn it on.When Bluetooth is on, the icon will appear in the status bar. Tap Bluetooth. Your phone will show all visible Bluetooth devices in range. Tap the device you want to pair with and operate according to the message prompt.When both devices to be paired accept the connection, the pairing is completed. TIPS: Tap your device name to make your phone discoverable if other devices try to pair with your phone. Setting Date and Time Press Home key > Settings > Date & time. Tap Automatic Date & time and select Off if you want to set the time and date by yourself. Set date, time and change the other options. Display Settings Press Home key >Settings > Display, you can adjust the display settings as you like: Wallpaper: Set the wallpaper of the phone. Brightness: Adjust brightness of the screen. Adaptive brightness: Rotate the screen display as you rotate the phone.
20 Sleep: Set the delay for the screen to automatically turn off. Sound &notification Settings By pressing Home Key > Settings > Sound &notification. When you choose the General mode, you can adjust the sound settings, such as ringtones, volume and vibrate. Language Settings You can change the language of your phone system in two simple steps. Press Home key > Settings > Language & input > Language. Select a language from the list given. Security Settings Here’s how to protect your phone and SIM card from unauthorized use. Press Home key > Settings > Security > Screen lock .You can select the screen lock. When power on your phone or unlock touch screen devices you will be required to input pattern/PIN/password/voice, and etc. The following is the introduction function: None Disable the screen lock Pattern Creating Your Screen Unlock Pattern Slide Select the slide to unlock PIN Use the PIN to unlock Voice Unlock Creating Unlock command and Password Use the password
21 Wake up command lock screen Managing Your Device Memory Press Home Key > Settings > Storage. You can view the space information of the SD card and the phone storage. Unmount SD card: You can unmount the SD card to safely remove it. Erase SD card: Erase all data on the SD card. Reset to Factory Settings Press Home key > Settings > Backup & reset > Factory data reset > Reset phone > Erase everything. WARNING: All your personal information and downloaded applications on your phone will be erased after the resetting. Applications Press Home Key > Settings > Apps. Clock Press Home key > Clock, you can view the clock or set the alarm. Tap the top of the screen icon can be switched to the countdown and stopwatch functions from the clock interface. Calculator You can use the phone directly perform simple mathematical calculations.
22 1. Press Home Key > Calculator. 2. Click the button corresponding with the calculator display, perform basic arithmetic. TIPS: Tap Menu Key > Advanced panel to use scientific calculation. For Your Safety General Safety Don’t make or receive handheld calls while driving. And never text while driving. Don’t use at petrol stations. Keep your phone at least 15 mm away from your ear or body while making calls. Your phone may produce a bright or flashing light. Small parts may cause a choking. Don’t dispose of your phone in fire. Your phone can produce a loud sound. Avoid contacting with anything magnetic. Keep away from pacemakers and other electronic medical devices. Avoid extreme temperatures. Switch off when asked to in hospitals and medical facilities. Avoid contacting with liquids. Keep your phone dry.
23 Switch off when told to in aircrafts and airports. Don’t take your phone apart. Switch off when near explosive materials or liquids. Only use approved accessories. Don’t rely on your phone for emergency communications. To prevent possible hearing damage, do not listen at high volume levels for long periods. Distraction Driving Full attention must be given to driving at all times in order to reduce the risk of an accident. Using a phone while driving (even with a hands free kit) can cause distraction and lead to an accident. You must comply with local laws and regulations restricting the use of wireless devices while driving. Operating Machinery Full attention must be given to operating the machinery in order to reduce the risk of an accident. Product Handling General Statement on Handling and Use You alone are responsible for how you use your phone and any consequences of its use. You must always switch off your phone wherever the use of a phone is prohibited. Use of your phone is subject to safety measures designed to
24 protect users and their environment. Always treat your phone and its accessories with care and keep it in a clean and dust-free place. Do not expose your phone or its accessories to open flames or lit tobacco products. Do not expose your phone or its accessories to liquid, moisture or high humidity. Do not drop, throw or try to bend your phone or its accessories. Do not use harsh chemicals, cleaning solvents, or aerosols to clean the device or its accessories. Do not paint your phone or its accessories. Do not attempt to disassemble your phone or its accessories, only authorized personnel can do so. Do not expose your phone or its accessories to extreme temperatures, minimum - [5] and maximum + [50] degrees Celsius. Please check local regulations for disposal of electronic products. Do not carry your phone in your back pocket as it could break when you sit down. Small Children Do not leave your phone and its accessories within the reach of small children or allow them to play with it. They could hurt themselves or others, or could accidentally damage
25 the phone. Your phone contains small parts with sharp edges that may cause an injury or may become detached and create a choking hazard. Demagnetization To avoid the risk of demagnetization, do not allow electronic devices or magnetic media close to your phone for a long time. Electrostatic Discharge (ESD) Do not touch the SIM card’s metal connectors. Antenna Do not touch the antenna unnecessarily. Normal Use Position When placing or receiving a phone call, hold your phone to your ear, with the bottom towards your mouth. Air Bags Do not place a phone in the area over an air bag or in the air bag deployment area. Store the phone safely before driving your vehicle. Seizures/ Blackouts The phone can produce a bright or flashing light. Repetitive Motion Injuries To minimize the risk of RSI when texting or playing games with your phone: Do not grip the phone too tightly.
26 Press the buttons lightly. Use the special features which are designed to minimize the times of pressing buttons, such as Message Templates and Predictive Text. Take lots of breaks to stretch and relax. Emergency Calls This phone, like any wireless phone, operates using radio signals, which cannot guarantee connection in all conditions. Therefore, you must never rely solely on any wireless phone for emergency communications. Loud Noise This phone is capable of producing loud noises, which may damage your hearing. Turn down the volume before using headphones, Bluetooth stereo headsets or other audio devices. Phone Heating Your phone may become warm during charging and during normal use. Electrical Safety Accessories Use only approved accessories. Do not connect with incompatible products or accessories. Take care not to touch or allow metal objects, such as coins or key rings, to contact or short-circuit in the battery terminals. Connection to a Car Seek professional advice when connecting a phone interface to the
27 vehicle electrical system. Faulty and Damaged Products Do not attempt to disassemble the phone or its accessory. Only qualified personnel can service or repair the phone or its accessory. If your phone or its accessory has been submerged in water, punctured, or subjected to a severe fall, do not use it until you have taken it to be checked at an authorized service centre. Interference General Statement on Interface Care must be taken when using the phone in close proximity to personal medical devices, such as pacemakers and hearing aids. Pacemakers Pacemaker manufacturers recommend that a minimum separation of 15 cm be maintained between a mobile phone and a pacemaker to avoid potential interference with the pacemaker. To achieve this, use the phone on the opposite ear to your pacemaker and do not carry it in a breast pocket. Hearing Aids People with hearing aids or other cochlear implants may experience interfering noises when using wireless devices or when one is nearby. The level of interference will depend on the type of hearing device and the distance from the interference source, increasing the separation between them may reduce the interference. You may also consult your
28 hearing aid manufacturer to discuss alternatives. Medical Devices Please consult your doctor and the device manufacturer to determine if operation of your phone may interfere with the operation of your medical device. Hospitals Switch off your wireless device when requested to do so in hospitals, clinics or health care facilities. These requests are designed to prevent possible interference with sensitive medical equipment. Aircraft Switch off your wireless device whenever you are instructed to do so by airport or airline staff. Consult the airline staff about the use of wireless devices on board the aircraft. If your device offers a ‘flight mode’, this must be enabled prior to boarding an aircraft. Interference in Cars Please note that because of possible interference to electronic equipment, some vehicle manufacturers forbid the use of mobile phones in their vehicles unless a hands-free kit with an external antenna is included in the installation. Explosive Environments Petrol Stations and Explosive Atmospheres In locations with potentially explosive atmospheres, obey all posted signs to turn off wireless devices such as your phone or other radio
29 equipment. Areas with potentially explosive atmospheres include fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains chemicals or particles, such as grain, dust, or metal powders. Blasting Caps and Areas Power off your mobile phone or wireless device when in a blasting area or in areas posted power off “two-way radios” or “electronic devices” to avoid interfering with blasting operations. FCC Compliance This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Caution: Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct
30 the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/ TV technician for help. Health and safety information Radio Frequ+ency (RF) Energy This model phone meets the government’s requirements for exposure to radio waves. This phone is designed and manufactured not to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal Communications Commission of the U.S. Government: The exposure standard for wireless mobile phones employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit set by the FCC is 1.6W/kg. Tests for SAR are conducted using standard operating positions accepted by the FCC with the phone transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR level of the phone while operating can be well below the maximum value. This is because the phone is designed to operate at multiple power levels so as to use only the poser required to reach the network. In general, the closer you are to a wireless base station antenna, the lower the power output.
31 The highest SAR value for the model phone as reported to the FCC when tested for use at the ear is 0.496 W/kg and when worn on the body, as described in this user guide, is 1.114 W/kg (Body-worn measurements differ among phone models, depending upon available enhancements and FCC requirements). While there may be differences between the SAR levels of various phones and at various positions, they all meet the government requirement. The FCC has granted an Equipment Authorization for this model phone with all reported SAR levels evaluated as in compliance with the FCC RF exposure guidelines. SAR information on this model phone is on file with the FCC and can be found under the Display Grant section of http://www.fcc.gov/oet/fccid after searching on FCC ID: VQRCTS616 For body worn operation, this phone has been tested and meets the FCC RF exposure guidelines for use with an accessory that contains no metal and the positions the handset a minimum of 1cm from the body. Use of other enhancements may not ensure compliance with FCC RF exposure guidelines. If you do not use a body-worn accessory and are not holding the phone at the ear, position the handset a minimum of 1cm from your body when the phone is switched on. Common fault diagnosis The faults possible reasons Can’t turn on 1、Whether there is electricity in the battery； 2、Battery is correct.
32 SIM is wrong 1、SIM is dirty and clean it； 2、install the SIM again； 3、SIM is wrong，replace it. Bad signal Check the signal display in the stutas bar. The phone can't call May have a strong jamming signal around the environment. Can’t charge May be the battery discharge. Need to wait for a few minutes. Taking pictures is not clear Please make sure that both sides of the camera lens cleaning.

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