[Root] [guide] Samsung Galaxy A20 rooting guide

[rwio]

this method works for a20e
https://forum.xda-developers.com/showpost.php?p=80021195&postcount=4

I can't get it to work without getting an unresponsive touch screen after reboot. I've tried the method in this thread to the letter, but no luck. After I've done the rooting and reboot into android the touch screen doesn't work.

The phone I'm using has Android 10 and U3 bootloader...
My bootloader is unlocked (and OEM-unlocking is visible, grayed out).
I'm patching the same firmware the phone had out of the box (I've also tried later/newer versions).
I've tried patching with both latest magisk manager and the canary version.
I've tried both the method in this thread patching only boot.img (boot.tar) and also tried patching the full AP_XXX.tar file as described by topjohnwu on github (it worked fine on the Samsung A10).

But I just keep getting an unresponsive touch screen after rooting. If I revert back to unrooted/unpatched firmware the touch screen works again.

 

[physwizz]

I can't get it to work without getting an unresponsive touch screen after reboot. I've tried the method in this thread to the letter, but no luck. After I've done the rooting and reboot into android the touch screen doesn't work.

The phone I'm using has Android 10 and U3 bootloader...
My bootloader is unlocked (and OEM-unlocking is visible, grayed out).
I'm patching the same firmware the phone had out of the box (I've also tried later/newer versions).
I've tried patching with both latest magisk manager and the canary version.
I've tried both the method in this thread patching only boot.img (boot.tar) and also tried patching the full AP_XXX.tar file as described by topjohnwu on github (it worked fine on the Samsung A10).

But I just keep getting an unresponsive touch screen after rooting. If I revert back to unrooted/unpatched firmware the touch screen works again.

Ask here
Telegram: https://t.me/ultimate_Pie2

 

[rwio]

I solved it. First I downloaded and flashed the newest firmware _without_ using a patched Boot.img or AP.tar-file. I.E, patching the same firmware the phone had out of the box did NOT work. After the firmware update I could successfully flash a patched Boot.img file and root the phone. I'm guessing it has something to do with Samsung updating the touch screen drivers since the phone was released.

 

[physwizz]

I solved it. First I downloaded and flashed the newest firmware _without_ using a patched Boot.img or AP.tar-file. I.E, patching the same firmware the phone had out of the box did NOT work. After the firmware update I could successfully flash a patched Boot.img file and root the phone. I'm guessing it has something to do with Samsung updating the touch screen drivers since the phone was released.

Great work

 

[physwizz]

I solved it. First I downloaded and flashed the newest firmware _without_ using a patched Boot.img or AP.tar-file. I.E, patching the same firmware the phone had out of the box did NOT work. After the firmware update I could successfully flash a patched Boot.img file and root the phone. I'm guessing it has something to do with Samsung updating the touch screen drivers since the phone was released.

You can create a TWRP here

https://forum.xda-developers.com/android/general/guide-porting-twrp-source-t3843473/amp/

 

[Moogle]

You can create a TWRP here

https://forum.xda-developers.com/android/general/guide-porting-twrp-source-t3843473/amp/

is the SM-A202F/DS still not supported?

 

[physwizz]

is the SM-A202F/DS still not supported?

This is the only TWRP
https://forum.xda-developers.com/ga...overy-twrp-3-4-0-0-galaxy-a20e-a202f-t4141767

Current bugs
Encryption/Decryption on stock does not work, you cannot read the internal storage while using the stock firmware
ADB and USB connection / USB OTG does not work

 

[Moogle]

This is the only TWRP
https://forum.xda-developers.com/ga...overy-twrp-3-4-0-0-galaxy-a20e-a202f-t4141767

Current bugs
Encryption/Decryption on stock does not work, you cannot read the internal storage while using the stock firmware
ADB and USB connection / USB OTG does not work

This is the TWRP and recovery instructions I used. However does the bug indicate that ALL internal storage doesn't work on stock? or just as it applies to Encryption / Decryption. If so I think it needs a better description for others. Will this problem go away if I get a GSI working properly?



I cannot seem to get a GSI installed successfully, I tried several (CrDroid, LOS and AOSP treble) and they all flashed boot icons for hours and never booted.
Many of the tutorials say to use an AB partition GSI but the treble partition check says the SM-A202F/DS isn't an AB partition device.
It says:
"Your device does not support Seamless System Upgrades and is detected to have an A-only system partition."

 

[physwizz]

This is the TWRP and recovery instructions I used. However does the bug indicate that ALL internal storage doesn't work on stock? or just as it applies to Encryption / Decryption. If so I think it needs a better description for others. Will this problem go away if I get a GSI working properly?



I cannot seem to get a GSI installed successfully, I tried several (CrDroid, LOS and AOSP treble) and they all flashed boot icons for hours and never booted.
Many of the tutorials say to use an AB partition GSI but the treble partition check says the SM-A202F/DS isn't an AB partition device.
It says:
"Your device does not support Seamless System Upgrades and is detected to have an A-only system partition."

Try a only

 

[Moogle]

Try a only

Guess I'm giving it a shot tonight again......... update to follow.

 

[physwizz]

Guess I'm giving it a shot tonight again......... update to follow.

Good luck

 

[zonalimitatore]

Hi at all.I need your help for a mother.
Ive in the hand this phone (it was of a girl died 1 week ago @24 years)
Her mom tell me that wanna rescue all photos & videos inside the internal memory.

But there are some problem:
1_Have a sim card with pin (no one know the code,and the mom cant find the original card) ---i've bypass this unmount the sim
2_After the reboot/power on,request a 4 pin code (try a lot of numbers,and now ive to wait 2 minutes,every time)
3_i find her samsung account,but not the password (so i can disable from it).
4_I try to recover the password for samsung's account,that send me a mail (gmail)
5_I dont know mail password (but google can send me the code on this sim card)
6_frp lock
7_oem lock

Now...i dont know what can i do.
I mean.I can try to unlock the cell phone's pin whitout the simcard,so samsung,so google,by flashing somethings?

But i need to be 100% sure nothing will be deleted
Due to frp and oem lock i don't know how ive to move on it.
Its a A20e

Hope someone can guide me step by step what download,where,and how do it,without lost nothing
I really appreciate it.
Thanks

 

[physwizz]

Hi at all.I need your help for a mother.
Ive in the hand this phone (it was of a girl died 1 week ago @24 years)
Her mom tell me that wanna rescue all photos & videos inside the internal memory.

But there are some problem:
1_Have a sim card with pin (no one know the code,and the mom cant find the original card) ---i've bypass this unmount the sim
2_After the reboot/power on,request a 4 pin code (try a lot of numbers,and now ive to wait 2 minutes,every time)
3_i find her samsung account,but not the password (so i can disable from it).
4_I try to recover the password for samsung's account,that send me a mail (gmail)
5_I dont know mail password (but google can send me the code on this sim card)
6_frp lock
7_oem lock

Now...i dont know what can i do.
I mean.I can try to unlock the cell phone's pin whitout the simcard,so samsung,so google,by flashing somethings?

But i need to be 100% sure nothing will be deleted
Due to frp and oem lock i don't know how ive to move on it.
Its a A20e

Hope someone can guide me step by step what download,where,and how do it,without lost nothing
I really appreciate it.
Thanks

What happens when you connect it to a computer ?

 

[zonalimitatore]

nothing....i cant open it due pin request

 

[physwizz]

nothing....i cant open it due pin request

Pop out the SD card
Check for photos

 

[zonalimitatore]

Yeah already do it. She need the internal storage

 

[physwizz]

Yeah already do it. She need the internal storage

That's encrypted

 

[zonalimitatore]

I don't see the encrypt message,but "pin request after reboot"

 

[physwizz]

I don't see the encrypt message,but "pin request after reboot"

You will have to try different pins

 

[zonalimitatore]

Yep I know. But now I've reach 4mins per pins.
There isn't a way,by flashing? I've see some site or program that do that,but I don't know if I can trust or not. Also because some require a ADB or development active (but I can't)