Fengmi MJJGYY02FM Mi Ultra-Short Range Laser Projector User Manual
Fengmi(Beijing)Technology Co., Ltd Mi Ultra-Short Range Laser Projector Users Manual
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Users Manual
Mi Laser Projector 150" User Manual 1
Manual de usuario de Mi Laser Projector 150" 25
Mode d’emploi du Mi Laser Projector150" 47
Mi Laser Projector 150" – Benutzerhandbuch 69
Руководство пользователя проектора Mi Laser Projector 150" 91
Mi 레이저 프로젝터 150" 사용 설명서 113
Mi レーザープロジェクター 150" ユーザーマニュアル 135
ﺔﺻﻮﺑ Mi 150 رﺰﻴﻟ رﻮﺘﻜﺟوﺮﺑ زﺎﻬﺟ مﺪﺨﺘﺴﻣ ﻞﻴﻟد 157
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Table of Contents
Note:
- This manual is applicable to the following model: MJJGYY02FM.
- There may be a slight difference between the actual menu and the menu display featured in this manual. Please refer to the menu as it appears to you.
Manual part number and version: D06007000003 Rev01
To users .......................................................................................................................4
FCC Statement ..........................................................................................................4
WEEE .............................................................................................................................4
FDA ................................................................................................................................5
IC ....................................................................................................................................5
CE ...................................................................................................................................5
Laser Safety Information ......................................................................................6
Important Safety Information ...........................................................................7
List of Items ...............................................................................................................9
Introduction to the Product's Exterior ......................................................... 10
Connectors and Ports ......................................................................................... 11
Power Indicator ..................................................................................................... 12
Projection Range and Screen Dimensions ................................................ 13
Remote ..................................................................................................................... 14
Quick Start Introduction ................................................................................... 15
Safety and Protection ........................................................................................ 17
Audio ......................................................................................................................... 18
Mainboard Upgrades ......................................................................................... 19
Smart Temperature Control ............................................................................ 19
Daily Maintenance .............................................................................................. 20
Technical Specifications .................................................................................... 21
FAQs .......................................................................................................................... 23
Product Certification .......................................................................................... 24
4
To users:
FCC Statement
Thanks for choosing the Mi Laser Projector 150". Read this manual carefully before use, and retain it for future reference.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may
cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance 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 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.
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition
without restriction.
FCC ID: 2AO2D-MJJGYY02FM
Bluetooth Remote Control FCC ID : 2AO2D-YKF429-004
WEEE
WEEE Disposal and Recycling Information Correct Disposal of this product. This marking indicates that this product should not be disposal with
other household wastes throughout the EU.
To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsible to promote the
sustainable reuse of materials resources. To return your used device, please use the return and collection systems or contact the retailer where
the product was purchased. They can take this product for environmental safe recycling.
5
FDA
CE
IC
Complies with 21 CFR1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007.
We Fengmi（Beijing）Technology Co., Ltd., hereby, declares that this equipment is in compliance with the applicable Directives and
European Norms, and amendments.
For MJJGYY02FM
Bluetooth Frequency range: 2400MHz-2483.5 MHz
Maximum Output Power: 8.89dBm
Wi-Fi 2.4G Frequency range: 2400MHz-2483.5 MHz
Maximum Output Power: 18.26dBm
Wi-Fi 5G Frequency range: 5150MHz-5350MHz
Maximum Output Power: 18.60dBm
Frequency range：5470MHz-5725MHz
Maximum Output Power: 18.72dBm
The WLAN function for this device is restricted to indoor use only when operating in the 5150 to 5350 MHz frequency range.
This device complies with Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
Le present appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisee
aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et. (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioelectrique subi, meme si le brouillage est susceptible d'en compromettre le fonctionnement.
Note:
- The distance required between a person and the projector must be ≥ 20cm.
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Laser Safety Information
Warning：
- A failure to follow the following safety advice may result in damage to the eyes and skin.
- You must never directly look at the laser projector lens or output. Its extreme level of brightness can cause irreversible eye damage. Ensure that the laser
projector's casing remains intact while the projector is in use to avoid ultraviolet radiation. We recommend the use of protective safety equipment and
safety goggles whenever undertaking repairs or maintenance.
- You must not, under any circumstances, open the laser's protective casing when it is operating.
- You cannot allow any reflective objects to go near the path of the laser beam.
Danger：
This is a Class 1 laser product with a corresponding laser wavelength of 455 nm. The product also contains an internal Class 4 laser bank, which is well-
protected. The following is a warning label used for describing the dangers of a Class 4 laser product:
There is a certain level of risk associated with servicing this product since the maintenance technician may be exposed to Class 1 laser radiation during the
process. Our projectors can only be serviced by well-trained and qualified maintenance technicians.
DANGER:
CLASS 4 LASER RADIATION WHEN
OPEN AND INTERLOCKS DEFEATED,
AVOID EYE OR SKIN EXPOSURE TO
DIRECTOR SCATTERED RADIATION.
CLASS 1 LASER PRODUCT
Complies with IEC 60825-1: 2014 Class 1
and IEC62471-5: 2015Exempt Group
Mi Laser Projector 150"
Address: 301, 3F, Building3, No.10, Shunyi District Renhe
Town Barracks South Street, Beijing, China
Manufactured by: Fengmi(Beijing)Technology Co., Ltd.
Model: MJJGYY02FM Rated Voltage: 100-240V~
Product Name: Mi Ultra-Short Range Laser Projector
Rated Frequency: 50/60Hz
Product Weight: 6.9kg
Rated Current: 3A
FCC ID: 2AO2D-MJJGYY02FM
CAN ICES-3 (B)/NMB-3(B)
Complies with 21 CFR1040.10 and 1040.11 except for deviations
pursuant to Laser Notice No. 50, dated June 24, 2007
Importer address: C/.Orense N.°70-Ofic. 8° Dcha, 28020 Madrid
Importer: Xiaomi Technology Spain, S.L.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
Made in China
IC: 23681-MJJGYY02FM
Mi Laser Projector 150" Nameplate
Class 1 Laser Information Label
CLASS 1 LASER PRODUCT
Complies with IEC 60825-1: 2014 Class 1
and IEC62471-5: 2015Exempt Group
Mi Laser Projector 150"
Address: 301, 3F, Building3, No.10, Shunyi District Renhe
Town Barracks South Street, Beijing, China
Manufactured by: Fengmi(Beijing)Technology Co., Ltd.
Model: MJJGYY02FM Rated Voltage: 100-240V~
Product Name: Mi Ultra-Short Range Laser Projector
Rated Frequency: 50/60Hz
Product Weight: 6.9kg
Rated Current: 3A
FCC ID: 2AO2D-MJJGYY02FM
CAN ICES-3 (B)/NMB-3(B)
Complies with 21 CFR1040.10 and 1040.11 except for deviations
pursuant to Laser Notice No. 50, dated June 24, 2007
Importer address: C/.Orense N.°70-Ofic. 8° Dcha, 28020 Madrid
Importer: Xiaomi Technology Spain, S.L.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
Made in China
IC: 23681-MJJGYY02FM
7
Grounding Warning
This product must be grounded when used.
Transport Instructions
You are advised to transport this product in its original packaging or equivalent, identical packaging.
Important Safety Information
Ensure that you carefully read the following important safety information and all product labels before using this product.
This label warns users that this product contains non-insulated voltage sources which can cause electric shock. Hence, there is a
danger of electric shock should you come into any kind of contact with any component within.
This alerts users to be aware of high temperatures.
This label alerts users to critical handling and maintenance related information. Please ensure that you read this information carefully
to avoid any errors.
This label alerts users to keep their hands or other body parts away.
Safety Label Description
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- Use of improper electric cables may result in decreased product performance and even electric shock or fire, and so forth. Ensure that you use the
product's original electric cabling or an identical equivalent when using this product to preserve performance and safety.
- Should you use a cable extension cord, then you must ensure that it does not have a lower current rating than the product's original cable. If you do
not, then the cable may overheat and cause an accident such as an electric shock, fire, and so on.
- Ensure that you disconnect the cable from the power socket during a lightning storm or if you have not used this product for an extended length of
time to avoid damage from a lightning or power line surge.
- Ensure that you do not place any flammable items near this product to guard against fire hazards.
- Do not allow any object to come into contact with the lens while the device is operating or it may result in the object becoming very hot or
deformed, which may result in a fire.
- Do not allow any items to be placed near vents or the heat dissipation vent to avoid a buildup of heat within the product, which may result in a fire.
- Do not allow this product to be used while on an unstable platform, frame, or table to protect against serious damage to the device or injury to those
nearby should the product fall.
- Never look directly at the lens or heat dissipation vent while the device is operating to avoid eye damage.
- Do not attempt to take this product apart as there are dangerous high voltage components inside that can cause injury. This product must be
maintained and repaired by highly experienced or authorized repair personnel should repairs be necessary.
- Do not place this product upright or it may easily fall over and cause injury or suffer damage.
- This product's working humidity must be between 20 and 80%, and the elevation must be less than 5,000 m above sea level.
- Do not immerse this product in, nor expose it to, water or any other liquid. Immediately unplug this device should any liquids or hard objects enter
into its casing, and immediately request for a professional technician to conduct an inspection before continuing to use the device.
- Do not allow the device to be placed in the following kinds of environments:
● In an area with poor ventilation or a narrow space.
● Near any device with a strong magnetic field.
● Where it is directly exposed to the sun.
● Near a fire alarm.
● In a very hot, cold, or moist environment.
Safe Operating Instructions
Guarding Against Electric Shocks and Fire Hazards
9
List of Items
Check the items in the product's packaging against the following list when opening this package. Please get in touch with your distributor
immediately should any items be missing.
Note:
- There may be slight variations in the list of items that come with this product based on the specific country (or region) of sale. Please refer to your actual
manual and package.
- Ensure that you retain the product's original packaging for future use and transportation.
AC Power Cord
* The power cord varies by country.
Mi Laser Projector 150" User ManualCleaning Cloth
Remote and Battery
* The batteries are provided only
in some countries.
Mi Laser Projector 150" User Manual 1
Manual de usuario de Mi Laser Projector 150" 25
Mode d’emploi du Mi Laser Projector150" 47
Mi Laser Projector 150" – Benutzerhandbuch 69
Руководство пользователя проектора Mi Laser Projector 150" 91
Mi 레이저 프로젝터 150" 사용 설명서 113
Mi レーザープロジェクター 150" ユーザーマニュアル 135
ﺔﺻﻮﺑ Mi 150 رﺰﻴﻟ رﻮﺘﻜﺟوﺮﺑ زﺎﻬﺟ مﺪﺨﺘﺴﻣ ﻞﻴﻟد 157
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Introduction to the Product's Exterior
Projector Lens
Power Indicator
Protective Glass Lens Cover
Speaker Mesh
Connectors and Ports
Power Socket
Heat Dissipation Vent
Height Adjustment
Wheel (Left)
Ventilation Hole
Height Adjustment
Wheel (Right)
USB 2.0 Port
Note：
-The heat dissipation vent discharges heat from the device. Do not allow
any flammable items near this vent.
-Do not allow any item to be placed near the ventilation hole to avoid a
potential buildup of heat within the projector.
-The project will emit a powerful light while operating. Do not look at the
projector lens directly to avoid damage to your eyes.
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Connectors and Ports
②
①
③ ④ ⑤ ⑥ ⑦ ⑧ ⑨
① Power Socket
⑥ Audio Output
- Audio output connector.
Supports coaxial S/PDIF, subwoofers
⑦ AV Input
- Video input connector
(triple 3.5mm connector)
⑧ S/PDIF
- Optical digital audio signal
output connector
⑨ Ethernet
- Port for establishing an Internet
connection through an Ethernet cable
② HDMI input 1
- HDMI signal input port 1
③ HDMI input 2
- HDMI signal input port 2
④ HDMI 3 ARC
- HDMI signal input port 3
- Audio Return Connector
⑤ USB2.0
- Supports the USB 2.0
Communication Protocol
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Power Indicator
System status prompts from the device's indicator light (a white light source)：
- The system will automatically turn on once the power cord is connected.
- The indicator will flash during the shutdown process.
- The indicator light will remain on after accessing the system.
- The indicator light will disappear after the system is turned off.
Power Indicator
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Projection Range and Screen Dimensions
Determines the distance required between the projector and the screen based on the size desired.
Screen Dimensions (SD): Diagonal projection screen size (inches).
Projector Distance (D): Distance between the back of the projector
and the screen (cm).
Relative Height (H): Distance between the base of the projector and
the very bottom of the image (cm).
Projector Screen
Dimensions (SD) Projector Distance (D) Relative Height (H)
80" 14cm 29cm
90" 19cm 32cm
100" 24cm 35cm
120" 34cm 41cm
150" 49cm 50cm
SD
D
H
Projector Screen
Projector Screen
Note:
- The dimensions in the above table are approximate values and may vary slightly with the actual values. Please use only as a reference.
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Remote
Power Switch
Press once: Turn on
After the device has turned on, press the
button once again to turn it off.
Voice control: Voice search
Arrow (Up): Move up/selection button
Bluetooth Remote Control
FCC ID : 2AO2D-YKF429-004
IC: 23681-YKF429004
CAN ICES-3(B)/NMB-3(B)
For YKF429-004
Bluetooth Frequency range: 2400MHz-2483.5MHz
Maximum Output power: 0.62dBm
Arrow (Left): Move left/selection button Arrow (Right): Move right/Selection button
Arrow (Down): Move down/Selection button
APP
Press: APP interface
Enter:
Confirm the current option or setting
Home: Return to the home screen
Return: Go back to the previous menu
Volume - : Reduce the volume Volume +: Increase volume
Battery Cover
Installing/Replacing Remote Batteries
- The remote uses two AAA batteries.
- Note that the polarity and direction of the batteries
are correct whenever replacing them.
- Ensure that you use a dry cloth to clean the remote
control immediately if any fluid has leaked from the
batteries and replace them with new batteries.
- Dispose of used batteries in accordance with the
batteries' instructions or whatever local rules or
guidelines apply in your location for their disposal.
Note:
15
Quick Action Introduction
1. Installing Remote Batteries and Pairing the Remote.
Ensure that the batteries are installed properly
If the battery compartment has insulating film,
then please remove it.
Remote paired
You can now use the remote from
anywhere nearby.
Pairing the Bluetooth Remote
Press and hold and the button near the
bottom right corner of Laser Theater.
Release after you hear a 'beep' . It is now pairing.
Wait nearby until the process is completed.
Press the button to start pairing
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2. Motor Focus
Mi Laser Projector 150" Mi Laser Projector 150"
Mi Laser Projector 150"Mi Laser Projector 150"
8-Point Keystone
Correction
ResetFine-Tune OK
Mi Laser Projector 150"
Mi Laser Projector 150"
Mi Laser Projector 150"
Mi Laser Projector 150"
Mi Laser Projector 150" Mi Laser Projector 150"
Mi Laser Projector 150"Mi Laser Projector 150"
8-Point Keystone
Correction
ResetFine-Tune OK
Mi Laser Projector 150"
Mi Laser Projector 150"
Mi Laser Projector 150"
Mi Laser Projector 150"
3. Keystone Correction
Note:
The correction range for the 4-point and 8-point correction modes is shown above. The W and H for
the different projection screen sizes are also different. For example, the dimensions for a 100" 16:9
image will be approximately W=2214mm, H=1245mm (the actual dimensions may differ. Please refer
to the actual dimensions).
W
MAX=W/4
MAX=H/4
H
W
MAX=W/8
MAX=H/16
MAX=W/8
MAX=H/16
MAX=W/16
MAX=H/8
MAX=W/16
MAX=H/8
H
4-Point Correction Mode 8-Point Correction Mode
Go to the Image Adjustment Menu in the system settings to adjust the focus.
17
Safety and Protection
This device comes with an infrared sensor which is able to intelligently detect and protect the human eye from strong light damage within the
area of the projection.
The device will reduce its luminescence to the lowest possible value when the sensor is triggered with a warning, 'Do not look at the light
source directly.' Press any button on the remote to exit.
Human Infrared Sensor and
Fresnel Optical Lens
Front sensor range: approximately 55° degrees
Left and right side sensor range: approximately 70° degrees
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Audio
High Frequency Speaker High Frequency SpeakerFull Range Speaker Full Range Speaker
Audio Audio
The projector has four built-in, high-quality speakers with approximately 30w total output. It can be used as a stand-alone Bluetooth stereo.
19
Mainboard Upgrades
The mainboard can be upgraded in accordance
with the processor's performance. The
mainboard must be upgraded at an after sales
service location or by being returned to the
manufacturer. Users should not attempt to
dismantle the mainboard themselves.
Mainboard System
Smart Temperature Control
The system monitors 'NTC' (the laser, ambient temperature, and color wheel temperature) and will automatically adjust the fan speed. The
ambient temperature range is 0~40℃ . The system monitors the laser and color wheel temperature.
Temperature Mode:
- There are three brightness settings available while the projector is within its normal temperature range.
- An overheating warning will be displayed automatically when the projector reaches a temperature in its warning range. It will automatically
switch to power saving mode. Temperature warning and error warnings will be displayed automatically whenever the temperature exceeds
its maximum range to inform you that the machine will be automatically turning off.
Temperature switch: The laser comes equipped with a physical high temperature sensor which will automatically shut down its power source
when its maximum acceptable temperature is exceeded.
20
Daily Maintenance
Heat Dissipation Maintenance
50cm
Inlet
Exhaust
50cm
Note: Do not touch when the
heat dissipation vent or ventilation
hole reaches approximately 65℃.
Cleaning and Maintenance
Ensure that the projector casing and lens is given a regular, light clean
using the cleaning cloth that comes with the device or a professional
grade cleaning cloth. Do not use any abrasive cleaners, solvents or other
rough chemicals to avoid scratches to the surface of the chassis or glass
cover.
Do not allow any item to be placed within 50 cm
of the project's heat dissipation vent to avoid
obstructing the heat dissipation.
Note:
Note:
- This projector is not water resistant. Do not allow liquids to penetrate the projector,
particularly the power indicator, glass cover, heat dissipation vent, ports and
microphone holes, and such other locations.
- Ensure that the cleaning cloth that comes with the machine or a professional grade
cleaning cloth is used to clean the glass.
- Ensure that the projector is turned off and the power cord is removed before
cleaning the device.
21
Technical Specifications
Basic Information
Model Mi Laser Projector 150"
Dimensions 410mm×291mm×88mm
Weight 6.9kg
Basic Functions Lens focus Motor focus
Dust cover Glass Dust Cover
Optical Parameters
Display technology 0.47"DMD
Light technology ALPD
Standard resolution Full HD (1920×1080)
Projection Parameters
Frame refresh rate 60/120Hz (1920×1080@60Hz is recommended for best results)
Lens focal length 18.08mm
Projection ratio (TR) 0.233
Picture size 80"-150"
Keystone correction 8-Point Keystone Correction, 4-Point Keystone Correction
System Parameters
CPU T962X Cortex-A53
Four 1.8gHz cores/64 bit
RAM 2G DDR4
Built-in storage 16GB eMMC high speed flash memory
System Software
Operating system Google Android System
Compatibility Google Android Player
APP Store Google Play Store
AV wireless transmission Chrome Cast
Brightness mode Dynamic, movie, standard
Dynamic image Supports HDR
Audio Speaker stereo Full range×2 + high-frequency×2 (Total ≈ 30w)
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Remote Bluetooth remote Mi Bluetooth Remote
Safe Eye Protection Laser eye protection Body sensor (can close)
Power Supply Built-in power supply Built-in AC-DC, DC-DC
Case Power Supply Indicator Breathing white light
Electrical Specifications
Noise level <32dB@ standard mode/ambient temperature 25℃ /distance 1m
Power consumption <250W(max)@ dynamic mode
Power input 100-240V 50/60Hz
Standby power consumption <0.5W
Safety and Protection Smart temperature control Automatic brightness adjustment, smart fan speed adjustment
Temperature switch Overheating auto-shutdown
Hardware Upgrades Replaceable master processor design Upgrade hardware via customer service
Others
Storage temperature -20oC~55oC
Operating temperature 0oC~40oC
Operating humidity 20%~80%
23
FAQs
Questions Solutions
The screen is not displayed Turn off the power source and remove the power cable; reinsert the power cable and restart the machine.
The Android system crashes Turn off the power source and remove the power cable; reinsert the power cable and restart the machine.
There is a screen display error Turn off the power source and remove the power cable; reinsert the power cable and restart the machine.
The remote is missing or not paired Turn off the power source and disconnect the power cord. Reinsert the power cord after waiting for five
minutes, and the system will restart automatically. Re-pair the remote control after the system has restarted.
The system will automatically turn itself off after
an overheating warning
Check that there are no obstacles impeding the system's ventilation holes to ensure that the cooling flow can
proceed normally. Restart the machine according to the method above.
How do I restore factory settings? Go to the Setup screen and select Restore from General settings. Confirm whether you want to keep installed
applications and then perform the reset.
How do I adjust the focus? Enter Settings > Image Settings, and then find Electric Focusing. Press on the left and right buttons on the
remote control to adjust the focus. Release when the image is being clearly displayed on the screen or wall.
How can I avoid distortions at the top of the
image?
The lens' widest angle projects onto the top of the screen and so any unevenness in this area may have
an outsized bending effect on the projection. It can be estimated that around 1mm of unevenness in the
receiving screen or wall will cause a 3mm bending effect. A projection curtain would be recommended.
How do I use the Keystone Correction system?
1) You should see the Keystone Correction screen when you first turn on the projector or go to Settings. The
cursor's presence at a given point indicates that it can be moved "up-down-left-right " from the current
location to ensure that a 16:9 rectangle is maintained.
2) The projector should be positioned at right angles as much as possible to the screen for an optimal
projection effect. The image lines will be uneven if the projector is not lined up vertically with the wall
or screen. Uneven lines may be revised using Keystone Correction, which can help maintain a standard
rectangular screen.
3) The projector uses digital Keystone Correction software, that is, the corrections are calculated and
performed by software.
How can I improve the Bluetooth Remote's
voice input's ability to understand me?
1) Use Mandarin when issuing commands by voice input;
2) Try disconnecting and then re-pairing the Bluetooth.
24
Questions Solutions
How do I change the DNS?
1) Enter Settings, select System Settings, select Network and then choose the connected network.
2) Bring up Network Settings with the right button on the remote control and then set 'Automatically
Configure' to off.
3) Select DNS at the bottom and press confirm to bring up the keyboard interface.
4) Modify the DNS. Tap confirm when you are finished.
How can I resolve system stuck?
1) The system may be handling too much unnecessary data: clear the cache and delete any unnecessary
applications.
2) There may be network issues: ensure that you have enough bandwidth to support online video play; in
theory, a 1080p video would a require bandwidth capacity of 8M or more to generally avoid interruptions.
In the event the preceding steps do not resolve
the issue or if you encounter other internal
system faults
Please contact Xiaomi Customer Service to arrange a professional technician.
Product Certification
Manufactured by: Fengmi(Beijing)Technology Co., Ltd.
(a Mi Ecosystem company)
Address: 301,3F,Building3,No.10,Shunyi District Renhe Town Barracks South Street,Beijing,China