DISCONTINUED [TWRP] Samsung Galaxy A20 Custom Recovery (Android 9)

[physwizz]

this twrp work's on A20 Brazilian Version? My model is SM-A205G

No. Sorry
Your firmware is to new (S5)

 

[InsaneJr21]

No. Sorry
Your firmware is to new (S5)

Dont have twrp for my model? A205G?

 

[physwizz]

Dont have twrp for my model? A205G?

It's the date of your firmware.
you could try this one
https://forum.xda-developers.com/ga...overy-twrp-3-3-1-0-galaxy-a10-exynos-t4013481

 

[InsaneJr21]

No. Sorry
Your firmware is to new (S5)

if i downgread can i install your version of twrp?

 

[physwizz]

if i downgread can i install your version of twrp?

I don't think downgrade is possible.

https://forum.xda-developers.com/ga...overy-twrp-3-3-1-0-galaxy-a10-exynos-t4013481
You could try the above link.

 

[aIecxs]

@Technical i have compared vbmeta.tar from @Agrim720 with vbmeta.tar from @LietRell, the images are same like this vbmeta.img code from @ianmacd, they just empty files with two lines of text AVB0 + avbtool 1.1.0 so it doesn't look device specific. the only issue i could imagine may the small file size, vbmeta partition is probably much bigger which may left old signature fragments because it seems not fully overwritten with zero bytes (i am not aware how odin/heimdall handle this). nobody reported such kind of issue so far, nevertheless it does not harm to enlarge file size to it's original partition size, may worth a try. another thing what you can do is compare the U5 vbmeta (i haven't handy) maybe the avb version is different. but i don't think it's issue with vbmeta because it's only purpose is to prevent modified images (like twrp recovery) from flashing, so if twrp works then avb is disabled.
another issue i can imagine (if not related to encryption) are broken verifyatboot or avb_keys= flags (if exist) because afaik current disablers just delete verify and avb strings which may left garbage strings

 

[Technical]

@Technical i have compared vbmeta.tar from @Agrim720 with vbmeta.tar from @LietRell, the images are same like this vbmeta.img code from @ianmacd, they just empty files with two lines of text AVB0 + avbtool 1.1.0 so it doesn't look device specific. the only issue i could imagine may the small file size, vbmeta partition is probably much bigger which may left old signature fragments because it seems not fully overwritten with zero bytes (i am not aware how odin/heimdall handle this). nobody reported such kind of issue so far, nevertheless it does not harm to enlarge file size to it's original partition size, may worth a try. another thing what you can do is compare the U5 vbmeta (i haven't handy) maybe the avb version is different. but i don't think it's issue with vbmeta because it's only purpose is to prevent modified images (like twrp recovery) from flashing, so if twrp works then avb is disabled.
another issue i can imagine (if not related to encryption) are broken verifyatboot or avb_keys= flags (if exist) because afaik current disablers just delete verify and avb strings which may left garbage strings

Many thanks. Although I'm not a newbie, I never learn how to handle such things. Right now, I need to wait with mixing my phones, one at a time
My goal with A20 is to reach GSI Roms, but this does not seem to be possible in a short time. GSI Roms are not booting at all.

 

[aIecxs]

all you need is a hex editor

 

[squrl0001]

does anyone have 30 min to talk to me and guide me through rooting the a20 model 205dl tracfone? i cant seem to get any simple method to work and i'm not experienced enough to just experiment with the recovery and bootloader without causing irreversible damage.

 

[physwizz]

does anyone have 30 min to talk to me and guide me through rooting the a20 model 205dl tracfone? i cant seem to get any simple method to work and i'm not experienced enough to just experiment with the recovery and bootloader without causing irreversible damage.

https://forum.xda-developers.com/galaxy-a20/how-to/root-samsung-galaxy-a20-rooting-guide-t3954872

 

[vinpachec0]

Is there any unofficial twrp for samsung a20s? Thank you.

 

[physwizz]

Is there any unofficial twrp for samsung a20s? Thank you.

No, Sorry. Not yet

 

[Asc101]

How about Samsung A205GN?

 

[physwizz]

How about Samsung A205GN?

Yes.
Start from post#1 and read very carefully.
There are 2 versions.
You need to decide which one suits you.
It all depends on your bootloader.

 

[arigg]

Yes.
Start from post#1 and read very carefully.
There are 2 versions.
You need to decide which one suits you.
It all depends on your bootloader.

Help

 

[physwizz]

Help

Go to settings about phone software information baseband number

 

[Albert pallam]

Can we flash U3 twrp file of a20 to Samsung galaxy a10

 

[physwizz]

Can we flash U3 twrp file of a20 to Samsung galaxy a10

I don't think it would work

 

[ComefromVN]

Help i cant flash any .zip with TWRP

Please help me, i dont know what i'm doing wrong
I cant flash any zip, after i falsh a zip and recevied Successes messeage and restart NOTHING CHANGE
I also try to install modules of Magisk manager but nothing happen when i restart the phone
Maybe it's my fault when i using U4 recovery to my U7 phone ???

 

[7wells]

@physwizz

...
Maybe it's my fault when i using U4 recovery to my U7 phone ???

In this and others threads, I read about U2, U3, U4, and now also about U7. What are these and where can we find what applies to which (Samsung or other) phone?