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[Firmware] Xiaomi Mi A1 Firmware [Tissot][Oct sec patch]

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joeyhuab

Recognized Developer
Nov 5, 2012
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evolution-x.org
Xiaomi Mi A1
Redmi K20 Pro
This may or may not fix your network fluctuation issues but chances are that it will. :)
This can be flashed in ALL ROMs.

WARNING: FASTBOOT OEM UNLOCK WIPES YOUR DATA. TAKE BACKUPS IF YOU NEED TO.
ALSO: FASTBOOT OEM LOCK CAN ONLY BE USED IF YOU REVERTED YOUR PHONE TO FULL STOCK. DON'T USE IT IF NOT NEEDED.

Latest bootloader & modem
Previous modems
Flash the file zip via TWRP.

OR

Extract the modem.img from the zip and do the following commands via fastboot

Code:
- fastboot devices
- fastboot oem unlock
- fastboot flash modem_a modem.img
- fastboot flash modem_b modem.img
- fastboot reboot
Once booted, set your network mode to Global or WCDMA/LTE or a different mode depending on your geographical location.
You may dial *#*#4636#*#* then once in the testing app, click Phone information then scroll down to see the network modes.

Hope this can help with your network issues! Comment below if it fixes your network stability.
 
Last edited:

kamrul.auntu

Senior Member
Apr 16, 2011
297
24
Dhaka
writing 'modem_a'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 1.889s

writing 'modem_b'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 1.888s

I think it's not a successful operation. Is it for bootloader locked state that's why?

---------- Post added at 02:48 AM ---------- Previous post was at 02:33 AM ----------

writing 'modem_a'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 1.889s

writing 'modem_b'...
FAILED (remote: Partition flashing is not allowed)
finished. total time: 1.888s

I think it's not a successful operation. Is it for bootloader locked state that's why?

Yes bootloader unlock was the reason for failed.
So below should be working flashing process,
- fastboot devices
- fastboot oem unlock
- fastboot flash modem_a modem.img
- fastboot flash modem_b modem.img
- fastboot oem lock
- fastboot reboot
 

dmbardal

Senior Member
Sep 9, 2010
466
82
Norway
Google Pixel 5
Thank you.

I'm not sure if this actually does anything on later custom ROMs though?
Assuming they include the same files.

However, I did check with older custom ROMs, and I now have -95 to -101 dBm in signal when using 4G (LTE), so it's absolutely worth trying.
 

joeyhuab

Recognized Developer
Nov 5, 2012
3,168
13,125
26
Antipolo
evolution-x.org
Xiaomi Mi A1
Redmi K20 Pro
Thank you.

I'm not sure if this actually does anything on later custom ROMs though?
Assuming they include the same files.

However, I did check with older custom ROMs, and I now have -95 to -101 dBm in signal when using 4G (LTE), so it's absolutely worth trying.

It's worth a try. :)

I'll update this whenever a fastboot ROM comes out per month. Hopefully it improves your network.
 
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[email protected]

Senior Member
Oct 24, 2010
874
152
by any chance sir, can you make a flashable zip of the march modem just incase we would need to revert? personally its easier for me flashing via twrp since i leqve my laptop at home. thqnks in advance.
 

joeyhuab

Recognized Developer
Nov 5, 2012
3,168
13,125
26
Antipolo
evolution-x.org
Xiaomi Mi A1
Redmi K20 Pro
by any chance sir, can you make a flashable zip of the march modem just incase we would need to revert? personally its easier for me flashing via twrp since i leqve my laptop at home. thqnks in advance.
I look for the file and upload it as well.

Sent from my Xiaomi Mi A1 using XDA Labs
 
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