Sir:*****I am not responsible for anything you do to your device. Do this at own risk***** If all goes bad just flash Factory firmware with PIT file.
Credit goes to those who built twrp.img and the vbmeta image for the A30/A70. I am no dev, I read somewhere about the crossflash to DS firmware but cannot find it any more.
This is for people who understand Odin and have some experience flashing firmware.
Maybe someone will make noob friendly instructions, please feel free.
I currently have an a205u with an unlocked bootloader root and twrp.
1. Using Patched odin crossflash to DS firmware. OEM toggle-download mode-unlock bootloader.
2. You are now able to flash back to the W/U firmware keeping an unlocked Bootloader even though you will not see an oem toggle in developer options
3. Patch boot with magisk 8.02 compress it to tar file along with A30 vbmeta.
***** Important***** make sure to use 7zZ for all steps, and rename boot from magisk_patched_image to boot.img or you will receive errors.
( I may have used a70 vbmeta as I was trying various ideas someone will have to try this and let us know) It will hang at samsung logo for a while on first boot.
4. Then flash A30 TWRP using flashify. Probably works with odin too. Boot to recovery- Perform format data, reboot recovery, flash dmverity+magisk. May be able to get it to work in less steps that's just what I did to make it work.
Link containing vbmeta , magisk patched boot Patched odin . Bootloader 4
First time flashing I got a pass in Odin and fail on phone Flash the second time everything was good
I do not wish to debate you/this method. I very much need to unlock this bootloader (Galaxy A205U w/ And.10). I have run into so much controversy about being able to unlock the bootloader on this particular model; controversy even within this site??? [please see;
F4cedR3ality7 -nov. 26, 2020 (post #39)]I'm not desperate (yet) but very much need confirmation that if I apply this operation, the bootloader will be unlocked. If interested, I have a few more questions about this particular model and what I can/cannot do with it. Please reply Thank You