Greetings,
My D802 doesn't boot into fastboot mode after I upgraded it to the latest snapshot of CM 12.1. It boots into Download Mode instead.
Device: LG G2 D802
ROM name: CyanogenMod 12.1
ROM version: 12.1-20151117-SNAPSHOT-YOG7DAO1KI-d802
Baseband version: M8974A-AAAANAZM-1.0.190128
Kernel version: 3.4.0-perf-g4c35dab
[email protected] #1
Custom recovery: ClockworkMod Recovery 6.0.4.4
Yesterday I recieved a notification about OTA update to 12.1. I was running latest snapshot of CM 12 (cm-12-20150625-SNAPSHOT-YNG4NAO09M-d802). I tried to use built-in updater, but update failed due to error which said something like:
assert failed: d2.verify_trustzone("TZ.BF.2.0-2.0.0109") == "1". I googled the error and some guy suggested that a clean install should help. So I did "
wipe data/factory reset", "
wipe cache" and formatted
/data and
/data/media (/sdcard) to be extra clean. Some other guy suggested that flashing
bootstack-d802-LP_30d-Bump-signed.zip before applying CM 12.1 can help too. And I did just that. Then I flashed GApps. My phone booted into CM 12.1 and is working just fine. Then I decided to flash CM's custom recovery. So I did "
adb reboot bootloader" and my phone went into Download Mode instead. Rebooting into fastboot from CWM doesn't work either.
My phone succesfully boots into Android, but there's no way I can access fastboot.
How can I get my fastboot back? And what's that Download Mode for anyway?
So here's what I did:
- Wiped
/data and
/cache/, formatted
/data and
/sdcard but not
/boot
- Flashed
bootstack-d802-LP_30d-Bump-signed.zip
- Flashed CM 12.1 snapshot
-
adb reboot bootloader brings me to Download Mode screen