Trying to bring back to life a Canadian Note 4 stuck in a bootloop...
Rooted. Custom recovery (TWRP 2.8.5). No problem booting into it. Download mode (Odin) works too.
Tried the basic stuff - wiping all caches, factory reset, flashing original ROM (5.1.1; Bell) from Sammobile.
Symptom: never finishes booting.
When running app optimization, somewhere between 15 and 24 app always reboots.
So, I think it is corrupted file system, partition...
Booting into recovery (TWRP), connecting through ADB, 'adb shell'...
Unmounting /data and /system, running 'e2fsck -fv' on both, no problems.
But Android still doesn't boot...
My best guess is a "bad sector" (in computer terms) on the MMC chip. How do I label it not for use?
One thing I haven't tried is repartitioning. From my reading I'd "lose" 3GB of storage.
Would not be the end of the world but would like to avoid it...
Any pointer what else could be tried? Where to look?
Thanks.
Rooted. Custom recovery (TWRP 2.8.5). No problem booting into it. Download mode (Odin) works too.
Tried the basic stuff - wiping all caches, factory reset, flashing original ROM (5.1.1; Bell) from Sammobile.
Symptom: never finishes booting.
When running app optimization, somewhere between 15 and 24 app always reboots.
So, I think it is corrupted file system, partition...
Booting into recovery (TWRP), connecting through ADB, 'adb shell'...
Unmounting /data and /system, running 'e2fsck -fv' on both, no problems.
But Android still doesn't boot...
My best guess is a "bad sector" (in computer terms) on the MMC chip. How do I label it not for use?
One thing I haven't tried is repartitioning. From my reading I'd "lose" 3GB of storage.
Would not be the end of the world but would like to avoid it...
Any pointer what else could be tried? Where to look?
Thanks.
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