I updated this guide, you can extract the S21 MBN files from your firmware using root and Solid Explorer.
Yes I know about extracting from factory Sony Firmware, that is easy. I need to get S21 MBN files as S21 was only device with same chipset that was released in my area with volte and vowifi. Thats why I need S21 mbn files.
Yeah each time an update is installed it rewrites the modem file, I think you'd be better off installing via newflasher as you could just remove the modem.sin from the install.
Thank you so much Brentree I just updated this guide, removing the modem files from the firmware folder worked!
I didn't check, but try to install Shizuku and Pixel IMS again, tell us if you were able to recover the Volte Options.
Shizuku and Pixel IMS got the options to appear in settings and volte provisioning on in Testing/phone information menu, it's just the IMS registration that won't go through.
I know who is my operator, and there is an mbn file for the operator, also it shows the volte is provisioned... Do you still think that it may be the problem of mbn file?
Don't relock your bootloader until you get volte and vowifi, if you did, perform the whole process again, and test other mbn files.
Tried several mbn files, and now, in first step where volte should work, i don't get it working May be it was same way when i tried first time... My carier is 012 mobile in Israel, it's running on Partner's network (one of the biggest local carriers)... Any ideas will be much appriciated
Have you restarted everytime you flashed a new MBN file?Tried several mbn files, and now, in first step where volte should work, i don't get it working May be it was same way when i tried first time... My carier is 012 mobile in Israel, it's running on Partner's network (one of the biggest local carriers)... Any ideas will be much appriciated
So guys, not so happy days...
./EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v
adb shell sh /sdcard/Android/data/moe.shizuku.privileged.api/start.sh
Of course I forgot to tell you that I achieve this on Android 13, last security patch. Firmware version 61.2.A.0.388.