[HELP THREAD] [Q&A] [NOOB FRIENDLY] Ask any question here, don't be shy!

Lupin The Third

Retired Forum Moderator
Mar 26, 2011
3,947
5,020
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Planet Earth
I need a help ..I m using a device mi a1 but after doing factory reset Imei gone.. I can't able to use any sim card . In setting , Baseband version show uknown. I have flash the official stock rom of mi a1 but still i m facing same problem & i also have try several solution ..None of them work .. Can u please help me that will be very glad !

Thanks in advance
A factory reset does not delete your imei.

Did you do something else to your phone?

Are you on stock or custom rom?
 
Mar 30, 2017
49
3
0
A factory reset does not delete your imei.

Did you do something else to your phone?

Are you on stock or custom rom?
Yes.. But I don't know why i does happen?

I flash stock rom for 3-4 times but not working

currently i m in stock rom but still i m using my device without imei..

Can u plz solve it
 

Gyro01

Senior Member
Apr 2, 2015
82
5
0
some stupid gallery app deleted all the pictures that I *didn't* mark (about 200)..
what's the best way to recover the pictures? do I need to root the device and is there a way to root it only temporarily (un-root the device later on) ?
thanks
 
Last edited:
Mar 30, 2017
49
3
0
A factory reset does not delete your imei.

Did you do something else to your phone?

Are you on stock or custom rom?
Yes.. But I don't know why i does happen?

I flash stock rom for 3-4 times but not working

currently i m in stock rom but still i m using my device without imei..

Can u plz give me a solution?
 

Aartem1279

New member
Mar 26, 2018
1
0
0
hello

Hello! We have a problem, how can I fix this download, blocked, how to delete the brick? what to do? my android has already spoiled the caste! I would like to reinstall the firmware officially to 8.0 did not work, be kind and help me how to fix this?:(
 

otisimo

New member
Mar 27, 2018
1
0
0
hello noob coming through, why can't I OTA update my device, it says "installation problem", well my device is rooted (magisk) and installed serveral mods, and also i don't understand with step number 3 from this method

1. Uninstall Magisk from magisk manager
2. Reboot to Fastboot
3. Flash latest fastboot ROM with Mi Flash tool with the option "Save user Data"
4. Once phone restarts, your files will be preserved and now you can apply OTA
5. Root again with the above tutorial.


and if i lost my root permission will it messed up my phone for having rooted apps installed?
 
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Lupin The Third

Retired Forum Moderator
Mar 26, 2011
3,947
5,020
263
Planet Earth
hello noob coming through, why can't I OTA update my device, it says "installation problem", well my device is rooted (magisk) and installed serveral mods, and also i don't understand with step number 3 from this method

1. Uninstall Magisk from magisk manager
2. Reboot to Fastboot
3. Flash latest fastboot ROM with Mi Flash tool with the option "Save user Data"
4. Once phone restarts, your files will be preserved and now you can apply OTA
5. Root again with the above tutorial.


and if i lost my root permission will it messed up my phone for having rooted apps installed?
You have an option in miflash tool to save userdata.

And no, it will not mess up your phone. Just root again and you will be fine.
 

upilguebu

Senior Member
Mar 15, 2013
984
277
0
so, im following this video to install the custom rom https://www.youtube.com/watch?v=cvWC7hy8_5Y, but when I already flash the custom rom zip, and when im trying to reboot into recovery, its says that "there's no OS detected" why?
my steps :
1. unlock bootloader,
2. boot into recovery,
3. flash the rom,
4. flash the magisk,
5. flash the twrp zip
6. reboot to recovery,
7. flash the gapps,
8. reboot system, it manage to boot into the os but no gapps installed so i decided to boot into recovery again and redo the steps
9. when reboot to recovery, it boot into stock recovery, not into twrp.
10. the problem occured.

edit : nvm i managed to boot it up succesfully :D
 
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mikejclark

Senior Member
Mar 22, 2012
67
6
28
Hi,
Looking to buy an A1 from aliexpress and want to make sure it will work in UK
https://www.aliexpress.com/item/Global-Version-Xiaomi-Mi-A1-4GB-32GB-Mobile-Phone-Snapdragon-625-Octa-Core-12-0MP-12/32828533777.html
This is from the above link:
2G: GSM:B:2/3/8
3G: TD-SCDMA B34:2100/B39:1900 WCDMA 1/2/5/8 CDMA EVDO BC0
4G: FDD LTE B5:850 /B8:900 /B4:1700 /B3:1800 /B1:2100 /B7:2600 /B20:800
4G: TD LTE B38:2600MHz B40:2300MHz

I know for 4G I need B20:800, but what about 2G?

According to https://willmyphonework.net/ the A1 won't work in the UK on 2G??

TIA
 

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meatloaf42

Member
Oct 30, 2017
43
9
8
If I understand correctly, the network carrier that you chose doesn't have 2G (it means that no device can work on 2G using that carrier). Correct me if I'm wrong.