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[Samsung SM-A125F] How to get rid of boot loops i.e. to soft-unbrick?

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The final line is my own TWRP build for my own Samsung A12, but still being boot looped somewhy
vbmeta.img (AVB), boot.img (kernel), or sth else, i’m unsure where are my boot loops come from.
But there was a flash operation with OEM not unlocked (but i’ll no longer lock OEM snce now), maybe it’s the cause?
 
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But what to be done for my current stage?
1. Download mode YES
2. TWRP not yet got boot loops solved, so NO
3. ADB NO w/o usable ROM’s to authorize USB debugging
4. Fastboot? Samsung devices don’t have such thing thanks?
So i’m asking are there any Download mode flashables (the OEM will no longer be locked again) available for unlocking dm-verity?
 
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But what to be done for my current stage?
1. Download mode YES
2. TWRP not yet got boot loops solved, so NO
3. ADB NO w/o usable ROM’s to authorize USB debugging
4. Fastboot? Samsung devices don’t have such thing thanks?
So i’m asking are there any Download mode flashables (the OEM will no longer be locked again) available for unlocking dm-verity?
If I would be in a situation like you, I would try getting in to meta-mode and useing sp flash tool flash new firmware as if you hard briked the device.
These will be helpfule:



 

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    A phone's bootloader always successfully MUST GOT UNLOCKED before dealing with its bootloader.