- Jan 8, 2012
I have unlocked my bootloader when I switched to MIUI12, I didn't like it and i tried PE 10 version flashing it over TWRP. So from my experience you will not be able to break your phone whilde flashing custom ROMs using TWRP, just you have to doo full whipe if you change ROMs or android versions of same ROM.Hello guys,
I hope I can post my doubts in this thread since I'm interested in flashing PixelExperience ROM (or LineageOS just out of curiosity to check them both) on my device.
I used to brick my Xiaomi Mi 8 device once because of the anti rollback protection and I would like to avoid it in the future, so that I feel quite insecure about that and try to be extra safe to not broke it anymore.
I' looked across the Internet and XDA-Developers forum for details about ARB system, I read XDA-Developers' blog post about that, I watched few YouTube videos and so on, but still some things are not really clear for me.
I know that TWRP does not compare the ARB indices so it's an open way to brick device, so I just want to compare it manually to be sure that the PixelExperience/LineageOS ROM's ARB value is not lower than device's one.
I have checked the ARB index on my phone, and the fastboot getvar anti command returns index of 1 value. How can I check the custom ROM's ARB value?
I understand that I can check it by unpacking recovery .tar.gz archive file and checking the script variable in flash-all.bat, but I think it only applies for MIUI ROM.
How can I check that for custom ROMs?
The second question is I think somehow related to the previous one.
I see that the firmware updates are available in some topic below.
I think it is necessary or highly recommended to install it, isn't it?
Is it also possible to fire the ARB protection by flashing the firmware?
Thank you in advance for help!
Regarding firmware it is there to update in short device and modem drivers that are provided from Xiaomi so you can flash them only when new release comes out.
If you install update from recovery it will not do format of your device, it will just update your ROM. Formating data will be done only if you do it yourself.