Is your device bootloader unlocked yet?
I did, which is why i included sprint instructions also.
Hi. many thanks with your thread. !
I have a G7 Sprint phone, it on 30b ULM ( Android 10 ) and i want to root it to flash custom rom. I have read your instructions on being to flash it back to oringinal rom ( Oreo ) first to unable fastboot ?
But i have some questions as below :
1. When i flash it back to oreo : Imei, cellular, signal still ok ?
2. Anyway to get full backup before if something goes wrong ?
3. When it have rooted and TWRP then can i flash any custom rom ( Pixel,MIUI....) in android 10 base ?
Thanks you !