Mi A1 FAQ
Overview
1．Q：What are the features of Mi A1？
A：Mi A1 has Qualcomm Snapdragon 625 processor based on 14nm Octa-
core Cortex A53 architecture, which provides strong performance with lower
power. It has 5.5-inch LTPS Full HD 2.5D glass sunlight/Night Display. For the
camera, Mi A1 has dual cameras with 2x optical zoom and portrait mode
supported. Other than this, it also has DHS audio calibration algorithm which
can provide studio level voice quality with independence amplifier.
2．Q：What are the specifics of Mi A1？
A：
Appearance
1．Q：What is the material of Mi A1？
A：It has 2.5D glass in front and full-metal design at the back side.
2．Q：Can I change back cover for Mi A1?
A：No, Mi A1 has the integrated back cover which cannot be changed.
3．Q：Which kind of fingerprint module does Mi A1 use?
A：Mi A1 has press fingerprint module at back side, which can realize some basic
features like unlocking screen.
4．Q：Where’re the position of Mi A1’s notification light and sensors?
A：As the picture below, on the top of the screen, from left to right, there are
LED notification light(white), Proximity sensor, front camera, and receiver.
5．Q：Can I change the notification light in the Settings?
A：For the simple style design, there’s only white for Mi A1’s LED notification light and cannot change it to other colors in Settings menu.
6．Q：What is the feature of Mi A1 antenna?
A：Mi A1 has the hidden antenna, which can build up a simple and beautiful integration cellphone body and also guarantee the signal level for the cellphone.
Hardware
1．Q：Which CPU does Mi A1 use?
A：It has Qualcomm Snapdragon 625 Octa-core 2.0GHz processor, which
based on 14nm FinFET technology with Cortex A53 architecture.
2．Q：What kind of SIM-card supported by Mi A1? Does it support external SD-card?
A：Mi A1 has Nano SIM + Nano SIM/Micro SD slot(alternative). It supports external Micro SD card, up to 128GB and supports hot plugging.
PS: Never suggest customer to use third-party slot or cut the sim-card by himself due to high possibility of breaking slot, cannot read sim-card, or cannot remove card.
3．Q：Does Mi A1 support dual SIM dual standby? What kind of carriers does it support?
A：Mi A1 supports dual SIM dual standby mode with single calling every time, and there’s no master/secondary sim card at slot and it supports 2G/3G/4G. Two CDMA sim-cards cannot work together.
4．Q：What are the features of Mi A1 camera?
A：The features for Mi A1 camera is the dual cameras come with wide angle and telephoto lenses, supports portrait mode and 2x optical zoom. The camera also comes with four-axis OIS, greatly reducing the effect of shaking or motion, so images and videos remain sharp.
The portrait mode allow to achieve a bokeh effect where areas of focus are clearly defined and the background is blurred.
The way: Enable the camera APP>>enable the portrait icon. In the brightness ,
two cameras work together, while in the bad light environment, only the wide
angle camera works.
*In portrait mode, flash, HDR, other mode choices are not available.
The 2x optical zoom support to achieve shots taken at a distance
remain uncompromised and true-to-detail.
The way: Enable the camera APP>>tap the“1X”to “2X”to enable the optical
zoom function.
5．Q：Which focusing technology does Mi A1’s rear camera support?
A：Mi A1’s rear camera supports both phase focus and contrast focus. When take photo in low-brightness environment or needs to focus manually, system will switch to contrast focus automatically without manual setting.
6．Q：What is standard for the earphone of Mi A1？
A：The biggest different thing for Mi A1 is it puts the earphone port position at
the bottom side of the device. At the meanwhile, Mi A1 supports 3.5mm Stereo Audio Jack with CTIA standard as well as USB type-C earphone. Furthermore, Mi A1 adopts DHS audio calibration algorithm and independence headphone amplifier to provide high quality audio experience.
7．Q：What are features of the speaker of Mi A1?
A：Mi A1 has single speaker with Smart PA technology, which can provide louder voice with higher quality while watching videos, listening to music, and gaming.
8．Q：What type of USB port does Mi A1 use？
A：Mi A1 uses USB2.0 Type-C port.
9．Q：Does Mi A1 support OTG?
A：Mi A1 supports OTG when the OTG cable using USB Type-C port, and it won’t be identified if the OTG cable is in Micro USB and connect through an adapter.
10．Q：Does Mi A1 support NFC?
A：No, it doesn’t.
11．Q：Does Mi A1 support 5Ghz WiFi?
A：Mi A1 supports WiFi at 2.4Ghz(IEEE 802.11b/g/n) and 5Ghz(IEEE 802.11a/n/ac) with maximum 433Mbps theoretical transmission speed.
12．Q：What is the battery capacity of Mi A1?
A：The battery capacity of Mi A1 is 3000mAh(min)/ 3080mAh(typ). It supports 5V/2A quick charge.
13．Q：What kinds of sensor does Mi A1 has?
A：Mi A1 has Gyro, Gravity sensor, electronic compass, Hall sensor, Light sensor, Proximity sensor, and Infrared Emitter.
*Mi A1 doesn’t have Pressure sensor.
14．Q：Which version of Bluetooth does Mi A1 support? Does it support HID?
A：Mi A1 has Bluetooth 4.2 with HID support.
15．Q：Which navigation systems does Mi A1 support?
A：Mi A1 supports GPS, Glonass, BeiDou system as well as A-GPS auxiliary
navigation based on internet to increase navigation speed.
16．Q：Why there is some noise when using earphone?
A：To make enjoy the high quality audio experience,Mi A1 adopts an independent headphone amplifier which increase the output power by 2.5 times. When headphone is high resistance one, he can experience the uncommon excellent audio effect.
If earphone is low resistance one, the unique headphone amplifier may enlarge the background noise. That’s why people may hear some noise when using the earphone, particularly during switch songs. That’s normal condition.
System
1．Q：Which Android version does Mi A1 have?
A：Mi A1 is the 1st Xiaomi device to ship with stock Android, which the first
released batch will be Android Nougat 7.1. Furthermore, Mi A1 will be one
among the first to get the new OS upgrade, when Google releases.
2．Q：Does Mi A1 support split screen？
A：Yes, it does. Open the “Recent task” window and hold the App which
needs to be split, move it to the top area of the screen where shows “Drag
here to use split screen” and then can modify the size and select another
App for another screen area.
3．Q：Does Mi A1 support Lite Mode？
A：No, it doesn’t.
4．Q：How to do the hardware test on Mi A1?
A：To do the hardware test, input “*#*#64663#*#*” or“*#*#6484#*#*” in dialing pad.
5．Q：Does Mi A1 have BootLoader lock？
A：To protect data security and guarantee the reliability of system, Mi A1 has BootLoader lock.
6．Q：Does Mi A1 support Fastboot？
A：Yes. Enter the Fastboot mode when press the Volume down +power button together. Slash the phone through Miflash tool. (Advise to refer to the MIUI website for the specific ROM and method in the future).
7．Q：Does Mi A1 support erasing data at Recovery mode?
A：No, it doesn’t have Recovery Mode. When press the Volume up +power button together and as the pic shows below:
8．Q：Does it support to sync the data from previous device to Mi A1?
A：Mi A1does not support Mi cloud service. If people want to sync the data from
previous device to Mi A1, there are two conditions:
(1). If uses Mi Cloud service previously, it cannot only download the data from
Mi cloud to the PC firstly. Then copy it to the new phone. After that, sync it to
the Google cloud afterwards.
(2).If one uses Google cloud service previously, he can sync the data to the new
phone and Google cloud with logging in Google account.
9．Q：What kind of Apps does Mi A1 preload? Can those Apps be uninstalled?
A：Besides the common Google Apps, like Gmail, Chrome, Google Duo, Maps, Play store, Play game, Mi A1 also preload Mi Remote, Mi Store and Feedback three APPs.
*Long press and drag upwards the unwanted App to see if it can be uninstalled.
1．Q：What are the features of Mi A1？
A：Mi A1 has Qualcomm Snapdragon 625 processor based on 14nm Octa-
core Cortex A53 architecture, which provides strong performance with lower
power. It has 5.5-inch LTPS Full HD 2.5D glass sunlight/Night Display. For the
camera, Mi A1 has dual cameras with 2x optical zoom and portrait mode
supported. Other than this, it also has DHS audio calibration algorithm which
can provide studio level voice quality with independence amplifier.
2．Q：What are the specifics of Mi A1？
A：
Appearance
1．Q：What is the material of Mi A1？
A：It has 2.5D glass in front and full-metal design at the back side.
2．Q：Can I change back cover for Mi A1?
A：No, Mi A1 has the integrated back cover which cannot be changed.
3．Q：Which kind of fingerprint module does Mi A1 use?
A：Mi A1 has press fingerprint module at back side, which can realize some basic
features like unlocking screen.
4．Q：Where’re the position of Mi A1’s notification light and sensors?
A：As the picture below, on the top of the screen, from left to right, there are
LED notification light(white), Proximity sensor, front camera, and receiver.
5．Q：Can I change the notification light in the Settings?
A：For the simple style design, there’s only white for Mi A1’s LED notification light and cannot change it to other colors in Settings menu.
6．Q：What is the feature of Mi A1 antenna?
A：Mi A1 has the hidden antenna, which can build up a simple and beautiful integration cellphone body and also guarantee the signal level for the cellphone.
Hardware
1．Q：Which CPU does Mi A1 use?
A：It has Qualcomm Snapdragon 625 Octa-core 2.0GHz processor, which
based on 14nm FinFET technology with Cortex A53 architecture.
2．Q：What kind of SIM-card supported by Mi A1? Does it support external SD-card?
A：Mi A1 has Nano SIM + Nano SIM/Micro SD slot(alternative). It supports external Micro SD card, up to 128GB and supports hot plugging.
PS: Never suggest customer to use third-party slot or cut the sim-card by himself due to high possibility of breaking slot, cannot read sim-card, or cannot remove card.
3．Q：Does Mi A1 support dual SIM dual standby? What kind of carriers does it support?
A：Mi A1 supports dual SIM dual standby mode with single calling every time, and there’s no master/secondary sim card at slot and it supports 2G/3G/4G. Two CDMA sim-cards cannot work together.
4．Q：What are the features of Mi A1 camera?
A：The features for Mi A1 camera is the dual cameras come with wide angle and telephoto lenses, supports portrait mode and 2x optical zoom. The camera also comes with four-axis OIS, greatly reducing the effect of shaking or motion, so images and videos remain sharp.
The portrait mode allow to achieve a bokeh effect where areas of focus are clearly defined and the background is blurred.
The way: Enable the camera APP>>enable the portrait icon. In the brightness ,
two cameras work together, while in the bad light environment, only the wide
angle camera works.
*In portrait mode, flash, HDR, other mode choices are not available.
The 2x optical zoom support to achieve shots taken at a distance
remain uncompromised and true-to-detail.
The way: Enable the camera APP>>tap the“1X”to “2X”to enable the optical
zoom function.
5．Q：Which focusing technology does Mi A1’s rear camera support?
A：Mi A1’s rear camera supports both phase focus and contrast focus. When take photo in low-brightness environment or needs to focus manually, system will switch to contrast focus automatically without manual setting.
6．Q：What is standard for the earphone of Mi A1？
A：The biggest different thing for Mi A1 is it puts the earphone port position at
the bottom side of the device. At the meanwhile, Mi A1 supports 3.5mm Stereo Audio Jack with CTIA standard as well as USB type-C earphone. Furthermore, Mi A1 adopts DHS audio calibration algorithm and independence headphone amplifier to provide high quality audio experience.
7．Q：What are features of the speaker of Mi A1?
A：Mi A1 has single speaker with Smart PA technology, which can provide louder voice with higher quality while watching videos, listening to music, and gaming.
8．Q：What type of USB port does Mi A1 use？
A：Mi A1 uses USB2.0 Type-C port.
9．Q：Does Mi A1 support OTG?
A：Mi A1 supports OTG when the OTG cable using USB Type-C port, and it won’t be identified if the OTG cable is in Micro USB and connect through an adapter.
10．Q：Does Mi A1 support NFC?
A：No, it doesn’t.
11．Q：Does Mi A1 support 5Ghz WiFi?
A：Mi A1 supports WiFi at 2.4Ghz(IEEE 802.11b/g/n) and 5Ghz(IEEE 802.11a/n/ac) with maximum 433Mbps theoretical transmission speed.
12．Q：What is the battery capacity of Mi A1?
A：The battery capacity of Mi A1 is 3000mAh(min)/ 3080mAh(typ). It supports 5V/2A quick charge.
13．Q：What kinds of sensor does Mi A1 has?
A：Mi A1 has Gyro, Gravity sensor, electronic compass, Hall sensor, Light sensor, Proximity sensor, and Infrared Emitter.
*Mi A1 doesn’t have Pressure sensor.
14．Q：Which version of Bluetooth does Mi A1 support? Does it support HID?
A：Mi A1 has Bluetooth 4.2 with HID support.
15．Q：Which navigation systems does Mi A1 support?
A：Mi A1 supports GPS, Glonass, BeiDou system as well as A-GPS auxiliary
navigation based on internet to increase navigation speed.
16．Q：Why there is some noise when using earphone?
A：To make enjoy the high quality audio experience,Mi A1 adopts an independent headphone amplifier which increase the output power by 2.5 times. When headphone is high resistance one, he can experience the uncommon excellent audio effect.
If earphone is low resistance one, the unique headphone amplifier may enlarge the background noise. That’s why people may hear some noise when using the earphone, particularly during switch songs. That’s normal condition.
System
1．Q：Which Android version does Mi A1 have?
A：Mi A1 is the 1st Xiaomi device to ship with stock Android, which the first
released batch will be Android Nougat 7.1. Furthermore, Mi A1 will be one
among the first to get the new OS upgrade, when Google releases.
2．Q：Does Mi A1 support split screen？
A：Yes, it does. Open the “Recent task” window and hold the App which
needs to be split, move it to the top area of the screen where shows “Drag
here to use split screen” and then can modify the size and select another
App for another screen area.
3．Q：Does Mi A1 support Lite Mode？
A：No, it doesn’t.
4．Q：How to do the hardware test on Mi A1?
A：To do the hardware test, input “*#*#64663#*#*” or“*#*#6484#*#*” in dialing pad.
5．Q：Does Mi A1 have BootLoader lock？
A：To protect data security and guarantee the reliability of system, Mi A1 has BootLoader lock.
6．Q：Does Mi A1 support Fastboot？
A：Yes. Enter the Fastboot mode when press the Volume down +power button together. Slash the phone through Miflash tool. (Advise to refer to the MIUI website for the specific ROM and method in the future).
7．Q：Does Mi A1 support erasing data at Recovery mode?
A：No, it doesn’t have Recovery Mode. When press the Volume up +power button together and as the pic shows below:
8．Q：Does it support to sync the data from previous device to Mi A1?
A：Mi A1does not support Mi cloud service. If people want to sync the data from
previous device to Mi A1, there are two conditions:
(1). If uses Mi Cloud service previously, it cannot only download the data from
Mi cloud to the PC firstly. Then copy it to the new phone. After that, sync it to
the Google cloud afterwards.
(2).If one uses Google cloud service previously, he can sync the data to the new
phone and Google cloud with logging in Google account.
9．Q：What kind of Apps does Mi A1 preload? Can those Apps be uninstalled?
A：Besides the common Google Apps, like Gmail, Chrome, Google Duo, Maps, Play store, Play game, Mi A1 also preload Mi Remote, Mi Store and Feedback three APPs.
*Long press and drag upwards the unwanted App to see if it can be uninstalled.
10．Q：Can Mi A1 be flashed into MIUI?
A：No. Unable to flash the Mi A1 Google system into MIUI via Miflash tool.
A：No. Unable to flash the Mi A1 Google system into MIUI via Miflash tool.
Does it help?
Yes
No