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@ardy – thank you very much for sending the xbl_config files. Writing them to xbl_config_a/b brought my Go Color 7 Gen II back from the dead: the power LED lights up again, the screen flickers when I hold the power button, and the device no longer drops into EDL 9008 by itself. I can still reach EDL via the test point, and printgpt/read/write work fine.
Unfortunately it still doesn't boot, and I can't get into recovery:
- No USB device appears on the PC at all after boot attempts (no adb, no fastboot).
- I wrote the stock Gen II recovery to recovery_a/b and tried a hand-made misc (BCB with "boot-recovery"/"recovery") – no reaction.
What happened (my mistakes, for context): I mistakenly flashed images from the Gen I firmware, then erased xbl_config, and overwrote the beginning of the super partition with a raw system.img. Afterwards I restored xbl, abl, boot, dtbo, vbmeta, vbmeta_system and recovery (both slots) from the Gen II OTA (GV2.027.SQ83A). I checked the beginning of super: the LP metadata is gone. misc, metadata and userdata are also erased. I don't know which firmware version was on the device before.
Your build is GV2.023.SQ83A, mine now has GV2.027.SQ83A files plus your xbl_config, so I'd like to rule out a mismatch.
If you are willing to help a bit more, could you please read these from the ACTIVE slot of your device (edl getactiveslot):
1. Small ones (a few MB total): xbl, abl, tz, hyp, aop, devcfg – I will only compare hashes with mine.
2. The first 1 MiB of super (edl rs <super start sector> 2048 head.bin) – I need the LP metadata layout (group names/flags).
3. If you are OK with a ~6 GB upload: the full super, plus boot, dtbo, vbmeta, vbmeta_system of the same slot, so that I can write a consistent GV2.023 set.
Please don't send persist, devinfo, frp or userdata. SHA256 sums would be great.
Also, does anyone have a link to Renate's misc-recovery.img attachment for the Go 7/Go Color 7 (the one used to reboot into stock recovery)? My own misc may simply be wrong.
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