Question how to fix unknown baseband in xiaomi 12 CUPID

[indrag_]

Hello , my xiaomi 12 has just lost imei and unknown baseband , does anyone know how to fix it ? Previously I have tried flashing to the enginering rom and doing the fastboot erase modemst1 command but it hasn't worked either, please help

 

[NOSS8]

If the bootloader is unlocked, use Miflash with the same rom that was on the phone when it was purchased.

MIFLASH[GUIDE]⚙ USE XIAOMI FLASH TOOL

FOR ALL XIAOMI BOOTLOADER MUST BE UNLOCKED https://new.c.mi.com/global/post/101245 https://en.miui.com/unlock/index.html ----------------------------------------------------------------------------------------------------------- All your data...

forum.xda-developers.com

 

[indrag_]

If the bootloader is unlocked, use Miflash with the same rom that was on the phone when it was purchased.

MIFLASH[GUIDE]⚙ USE XIAOMI FLASH TOOL

FOR ALL XIAOMI BOOTLOADER MUST BE UNLOCKED https://new.c.mi.com/global/post/101245 https://en.miui.com/unlock/index.html ----------------------------------------------------------------------------------------------------------- All your data...

forum.xda-developers.com

Thank you for replying, I will try your way

 

[NOSS8]

Thank you for replying, I will try your way

not guaranteed to fix the problem but it's the first step.

 

[indrag_]

not guaranteed to fix the problem but it's the first step.

I've tried your way but it's still unknown baseband

 

[NOSS8]

I've tried your way but it's still unknown baseband

what rom did you flash?

 

[indrag_]

what rom did you flash?

miui 13.0.1.0 indonesia

 

[NOSS8]

miui 13.0.1.0 indonesia

What did you do to have this problem?

 

[indrag_]

What did you do to have this problem?

I flash using mi flash tool , sorry my english bad

 

[indrag_]

What did you do to have this problem?

I've been flashing to ROM Enginering, flashing to MIUI EU but can't as well

 

[NOSS8]

I flash using mi flash tool , sorry my english bad

Did you use Miflash and then no base band?
Which model is the phone Global or CN?

 

[indrag_]

Did you use Miflash and then no base band?
Which model is the phone Global or CN?

Previously the phone suddenly lost baseband, then I did UBL and tried various ways but could not . my device global version

 

[NOSS8]

Previously the phone suddenly lost baseband, then I did UBL and tried various ways but could not . my device global version

See a repair or warranty center.

 

[indrag_]

See a repair or warranty center.

warranty is void because the phone has rooted

 

[NOSS8]

warranty is void because the phone has rooted

So it didn't happen by chance.
the only important point is that there is a Xiaomi rom on it., try with this tool if you manage to find the file.

 

[indrag_]

So it didn't happen by chance.
the only important point is that there is a Xiaomi rom on it., try with this tool if you manage to find the file.

thanks for the advice, I have read the tutorial but I am confused what file should I flash ?

 

[NOSS8]

thanks for the advice, I have read the tutorial but I am confused what file should I flash ?

You have a tutorial here:

How to use Qualcomm Flash Image Loader (QFIL) to Install Firmware

Step-by-Step guidelines on How to use Qualcomm Flash Image Loader (QFIL) to flash stock firmware on any Qualcomm Smartphone and tablet.

androidmtk.com

 

[zerro69]

Apakah sudah selesai gan? Masalah sama dg saya

Mod translation: Are you done? Same problem with me