[haian_w]

After restoring baseband, imei, wifi, bluetooth in my device (Custom Rom). I can't use 2G/3G network. Only able to use 4G network. I can't call or receive call as voice calls works in 2G in my area.I'm able to restore everything except IMEI 1 in stock rom but this problem exists. Is there any solution to this. Need help.

[X3non]

After restoring baseband, imei, wifi, bluetooth in my device (Custom Rom). I can't use 2G/3G network. Only able to use 4G network. I can't call or receive call as voice calls works in 2G in my area.I'm able to restore everything except IMEI 1 in stock rom but this problem exists. Is there any solution to this. Need help.

look for a working phone, same model without this issue, backup nvram + nvdata from the device then restore to yours
if you haven't already tried this then you can give it a try as well ; see https://www.hovatek.com/forum/thread-36911.html

[haian_w]

Already tried that method. if I'm restoring another phones nvdata, the phone doesn’t boot up. It goes to stock recovery with a warning that NVDATA is corrupted.

[maxpayne]

Already tried that method. if I'm restoring another phones nvdata, the phone doesn’t boot up. It goes to stock recovery with a warning that NVDATA is corrupted.

Try only nvram then format the nvdata partition in sp flash tool. Is it from same region i.e china to china or global to global that you backed up and flashed to?

[haian_w]

My phone is chinese varient, but i dont have the nvram nvdata backup of a chinese varient. I have tried searching the internet and couldnt find any and theres no one around in my area with a chinese varient of this phone. so first i have flashed global firmware then tried to restore global varients nvram and nvdata. It caused nvdata corrupted error.

[X3non]

My phone is chinese varient, but i dont have the nvram nvdata backup of a chinese varient. I have tried searching the internet and couldnt find any and theres no one around in my area with a chinese varient of this phone.

you'd need to look for a chinese variant phone to backup nvram from and try flashing

so first i have flashed global firmware then tried to restore global varients nvram and nvdata. It caused nvdata corrupted error.

have you tried @maxpayne's suggestion above? i.e flash nvram, format nvdata then perform a factory reset in recovery mode

[zxc1]

After restoring baseband, imei, wifi, bluetooth in my device (Custom Rom). I can't use 2G/3G network. Only able to use 4G network. I can't call or receive call as voice calls works in 2G in my area.I'm able to restore everything except IMEI 1 in stock rom but this problem exists. Is there any solution to this. Need help.

I am having the exact same problem with my redmi 10x 5g(atom). Have you found a fix?

[jasmin811]

Hello,

If you didn't back your nvram and nvdata,your first Imei is gone FOREVER.
Only second Imei can be recovered.
There is solution in XDA forum how to flash stock rom global or china version depend on your phone.