I just installed Lineage 11 on my Guacamole 1+7pro. I booted into recovery, did the wipe, installed the rom, rebooted into recovery which obviously failed after flashing rom, so I tried to reboot into fastboot mode, but Lineage started to boot. I let it continue, but it never finished after a long wait. So I powered off the phone, and continued to try to boot fastboot mode, but it kept booting Lineage, not fastboot. After numerous failed attempts to load twrp-3.4.0-10, the phone finally booted into fastboot mode, but that is all it does anymore. after booting into fastboot, my attempts to fastboot boot twrp results in error message "FAILED (remote: 'Failed to load/authenticate boot image: Load Error')".
I'm stuck. Ive tried different downloads of twrp, but nothing changes.
This is the lineage i used
[ROM][UNOFFICIAL][guacamole][11] LineageOS 18.1
This the TWRP i used
TWRP 3.4.0-10 Unified Unofficial Q by mauronofrio
This is the Gaps I downloaded
https://forum.xda-developers.com/android/software/arm64-nikgapps-t3915866/post83676281 But never got to flash yet