yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy A20 Guides, News, & Discussion] Klau189:
Thanks

Hello friends, I have been testing the gsi that are mentioned here, and I have served especially the GSI AOSP v123, I followed the procedure as indicated in post 1, Lineage OS 16 has also served me, which is also mentioned there, I wanted to share this just to tell you to follow all the procedures as mentioned, from root and TWRP to the GSI, I am using an A205G with the January 2020 Firmware in Mexico, thanks [MENTION=5440376]physwizz[/MENTION] for your valuable contributions
[Samsung Galaxy A20 Guides, News, & Discussion] burningcreation:
Good to hear. What ROM do you like the best out of the ones you've tried so far?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
A pleasure.
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
:confused:
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
Hey guys, new player (and long time lurker on xda) here.

I bought this phone last August and since, I've been following development on it. You guys have done an amazing job improving our device. I have a few ideas in mind how I could help ( not in development per se but in threat and links management).

My device model is 205F which looks pretty rare among devs here most of you have 205G. As soon as root and recovery were available I flashed them. Everything went smoothly. Patched boot and flashed through Odin then flashed recovery with flashify, "in a flash" so to say ?.

Now for GSI, that's a whole other bag of worms.

First I made a mistake. I format Data before flashing your GSI for Android 9. Flashing went well but rebooting first got stuck on android logo, then another reboot want directly to download mode with vbmeta error. Tried flashing GSI fix, vm-verity zips, flashing was ok but none of them did anything.

Side note: My /data/media folder(sdcard) was filled with encrypted files and folders. Even now after boot most apps can't deal with it. They can see the content, but not read it, chrome saves files(apks) to it but can't open them file managers don't see them. Any idea what to do about it?

Anyway, I realized my mistake and went about factory resetting. I had to do it in Odin cause I could only access stock recovery. Then tried rooting, got stuck at finishing touches in setup. On second try I factory reset and it worked flashed recovery then went back there and flashed GSI again. This time it works??.

The thing is I went to the official thread and looked up the tutorial. The instructions are to flash GSI only. If it doesn't work flash vm-verity, if it doesn't work flash vbmeta or GSI fix depending on errors shown. Formatting data should come as a last resort in case nothing works. So maybe [MENTION=849978]phizz[/MENTION]wizz you could update your post to reflect that?

I'm on GSI 9 now looking to upgrade to 10 if we find a file that works. It's such a relief not seeing Samsung at every corner of my phone ?, previously Samsung highjacked 12gb of my 32 now it's only 7.7gb(Google apps)

Right now I can't restore from smart switch, it shows my backup but no option to restore. I would have to transfer my files to PC then use cable to restore. IF MTP works. I'll get to it right now. Take care.

PS: can I suggest that we all have our device variant in our signatures so we know who has what?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
thanks for the ideas.

Edit: changes made.

My version was already in my signature.
[Samsung Galaxy A20 Guides, News, & Discussion] jajk:
[MENTION=1426438]tbm[/MENTION] Not sure if kernel is device version dependent or not....we have A205YN in Australia.
[Samsung Galaxy A20 Guides, News, & Discussion] TBM 13:
Then i will build it for the A205YN
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
If you have problems setting up a fingerprint unlock, make sure your brightness is maxed out and try again for a few times. It works.

Found this tip at the AOSP 9 Phh treble thread.

EDIT: after setting up one finger, trying to access the fingerprint menu makes settings screen go black, the screen still reacts to touches and lets me go to homescreen. Maybe if you need to have more than one finger do it while still in the menu with "add finger" button.
[Samsung Galaxy A20 Guides, News, & Discussion] jajk:
[MENTION=8033385]IamTheBRAVE[/MENTION] Tips for improving fingerprint recognition are for phones with in-display fingerprint sensor i.e. not our phone and turning the brightness up will do exactly nothing on any phone.
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
I looked it up and you're right. The post itself had no mention what kind of fingerprint it was. I assumed he was talking about all types of fingerprint. Mine wasn't working right, no recognition and print would disappear after reboot (standard policy is pin number unlock only after reboot) then reappear and work for a while. Now it works. I deleted my print and did another with no hiccups and without full brightness.

On another note, my internal storage is inaccessible to all apps. And comparing with other devices in which mnt/emulated/0 's permissions are 775, in mine it's 770. Chmod in TWRP doesn't work after reboot and neither are root explorers.

Do you think I should reflash GSI with wipe data ? I don't feel comfortable with formatting it, but it looks like it's the only thing left to do...
[Samsung Galaxy A20 Guides, News, & Discussion] TBM 13:
I can only find A205G and A205F kernel source code in Samsung Opensource Release Center, so i will build it for the A205G, it should work in the A205YN i suppose.
[Samsung Galaxy A20 Guides, News, & Discussion] hwp_2804:
well i already following all the step like your instructions on private message , but i still have the same result . bootloop on the boot logo
[Samsung Galaxy A20 Guides, News, & Discussion] alexHdz:
No android 10 gsi yet?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I haven't tried this one yet.

https://xdaforums.com/showpost.php?p=80210145&postcount=28
[Samsung Galaxy A20 Guides, News, & Discussion] alexHdz:
Do you think that Will work?
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
I'm not sure what could be the problem. Maybe from bootloop reboot to recovery (do you see stock or TWRP?) and factory reset...
[Samsung Galaxy A20 Guides, News, & Discussion] hwp_2804:
i rebooted to twrp , btw can i have your GSI link and twrp file ?
[Samsung Galaxy A20 Guides, News, & Discussion] robin_vilensky_:
I got stuck in boot animation

I Have A205F
[Samsung Galaxy A20 Guides, News, & Discussion] aversive:
My phone was in a bootloop of sorts after trying to install the system-arm64-ab-gapps-su version of the GSI...it would stay on the logo for a while before entering TWRP. I performed a wipe data and was then able to boot correctly, as per physwizz's instructions.

Hope this helps someone.
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
GSI 9:

You can download Phhusson's from here:

https://github.com/phhusson/treble_experimentations/releases

The latest is v119, click on >assets and choose System-arm64-AB-gapps-SU. There are also versions without gapps/superuser. Follow instruction from the 'Flash with TWRP' part of this article:

https://www.xda-developers.com/flash-generic-system-image-project-treble-device/

Don't forget to read carefully and go to 'troubleshooting tips' for further help if you're stuck.( I personally did not need to add extra files with 205F)

¡¡Only Format Data if absolutely necessary!!

Download afaneh's file from the link in A20 TWRP development thread with the instructions of how to install.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Congratulations ??
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I tried this with both an and a versions of Android 10

Permissiver v5 flashes ok

FixZygote gives me an error.

I get Samsung screen bootloops
[Samsung Galaxy A20 Guides, News, & Discussion] robin_vilensky_:
help to install android 10 without problem ?

:confused::(1 i installed OxygenOS-AB-10-20190903-ErfanGSI.img (system image twrp)

2 installed Permissiver_v5

3 installed Disable_Dm-Verity_ForceEncrypt_08.18.2019

4 installed GSI_Fix_boot

5 after i rebooted my device and i got auto reboot after samsung logo ..

no boot animation ..

:(:(

---------- Post added at 01:19 AM ---------- Previous post was at 12:58 AM ----------

i tested now android 9 works normal..
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Did you try here?

https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
Yes.i try some of them.but bootloop :( even its not show bootanimation...do you try a working oreo rom :confused: or is there any way to make the oreo rom work on the a20 :confused:
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
No. I haven't tried
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
Android 11 developer preview is out!:laugh: Here's the article about it

https://www.xda-developers.com/android-11-developer-preview-changes/

It is meant for pixel series phones, but there's a GSI for it, here's the link

https://dl.google.com/developers/an..._gms_arm64-exp-RPP1.200123.016.A1-6209321.zip
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Have you tried the GSI?
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
No, i was waiting for the adventurers like you guys to volunteer:laugh:
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Challenge accepted

No luck so far.

Not sure why they included a vbmeta.img along with the system.img
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
What error are you getting?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
boot loop of samsung screens
[Samsung Galaxy A20 Guides, News, & Discussion] IamTheBRAVE:
Which means the system is not recognised on boot, right? Maybe an incompatibility with our twrp?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Maybe that's why they provided a vbmeta.img
[Samsung Galaxy A20 Guides, News, & Discussion] Technical:
Project Treble is a big hack for developers. It's moving very slowly on custom ROMs. People come and go, release just one "lucky GSI" and can't compile it again. I can't see any manufacturer (besides Google) which is interested on it.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Some of my backups.
[Samsung Galaxy A20 Guides, News, & Discussion] shumway66:
looks like my list lol

---------- Post added at 04:04 AM ---------- Previous post was at 04:02 AM ----------

anyone try this?
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
What happened with your custom rom?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
What GApps are you using?
[Samsung Galaxy A20 Guides, News, & Discussion] shumway66:
still in the works just going for shoulder surgery

---------- Post added at 04:46 AM ---------- Previous post was at 04:43 AM ----------

pico but got the google play thing error so i just used my data from xsm with gapps in it and it was gone
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Good idea.
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
oh.ok.if you are don with it iam ready for testing :good:
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
[MENTION=10089295]shumway66[/MENTION]

Best of luck with the surgery.
[Samsung Galaxy A20 Guides, News, & Discussion] shumway66:
thanks

---------- Post added at 09:26 PM ---------- Previous post was at 09:23 PM ----------

https://drive.google.com/file/d/1c1p0z_EuLF6NXxTac8qHcKZm9ru7EcLs/view?usp=sharing

thats stock debloated and rooted as far as its at now
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
Its your custom rom right? Any instructions for install or any other flashed file after installing it?

Edit: I try a clean install ( without wiping phone memory) but the phone stuck in bootloop.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I got it to install by inserting my own boot.img into the zip
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Now my A205YN thinks it is a A205G

A bit slow but working
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
oh great..can you share your boot.img file..and how you install it? can you tell me the steps :confused:
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I just used my patched boot.img that I used in that root process.

I loaded the zip into zarchiver.

Deleted the boot.img

Inserted my boot.img

All done
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
i was mean how you flash the rom.just as normal? and can you attached your boot.img please
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
My boot.img is for U2 bootloader and is here

https://xdaforums.com/showpost.php?p=80021195&postcount=4

Unzip it first before you add it to the Rom.zip

You just install the Rom.zip from TWRP
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
ok.thanks. i will try and replay :good:
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I wiped both caches, data and system before I flashed the zip
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
Ok i did the same its work but verey slow. And nothing new in this rom
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
debloated
[Samsung Galaxy A20 Guides, News, & Discussion] hooooossamq:
What that mean?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Some of the Samsung system apps have been deleted.

You can do it yourself by using titanium backup.

Only don't try to delete any of the payment apps.
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
A couple of days ago I tried to install evolutionX and Havoc 3 but did the solution fail me in the play services? I had already inflated them before but this time it didn't work for me ... I have the February 1 patch this year ...
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Did you install GApps it did the gsi have GApps built in?
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
install them but only in Havoc

I also installed msxtended but it did not matter to me ... maybe it's because of the security patch? ...
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Which GSIs are working for you?
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
Havoc pie and 10

Msxtended pie

Xevolution 10
[Samsung Galaxy A20 Guides, News, & Discussion] Technical:
Which is your bootloader? https://samsung-firmware.org/model/SM-A205G/

I'm on A205GUBS5ATA1 and I can't boot any GSI Rom. Most probably, you're using an older bootload/firmware than I :(
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
I have the same bootload but the play services don't work for me
[Samsung Galaxy A20 Guides, News, & Discussion] Technical:
Hmmm... I was not able even to boot GSIs...
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
That seems unusual.

Have you created a TWRP backup of your boot, data, system?
[Samsung Galaxy A20 Guides, News, & Discussion] Technical:
No, I used Odin to restore original firmware. I can flash TWRP and Magisk, but couldn't boot any AOSP or GSI ROM with the S5 firmware.

I can't even downgrade the stock firmware. Odin can't flash an older version.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
If you can't backup perhaps your data is still encrypted

https://xdaforums.com/galaxy-a20/how-to/root-samsung-galaxy-a20-rooting-guide-t3954872
[Samsung Galaxy A20 Guides, News, & Discussion] Technical:
No, I haven't even tried. If I can't boot the new ROM, I would install stock from scratch rather then trying to restore via TWRP.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
This is why it's not working for you
[Samsung Galaxy A20 Guides, News, & Discussion] Technical:
I'm not following you. What do you mean?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
If your data is still encrypted you cannot backup and restore any roms and Gsi will not work.

Instructions are here https://xdaforums.com/showpost.php?p=80028118&postcount=2,
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
It is true that MSM xtended is so far the best GSI rom??
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I like it because it has everything i want
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
which one would you recommend to be the best in fluidity and performance in general? .... that is the most powerful and most stable ...
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I still like MSM-Xtended for performance.

It also has lots of options.

I particularly like to screen stabiliser. I use that when I'm taking vidoes of my grandchildren. It prevents all the wobbles.

I'm currently jumping between it and my debloated OneUI.
[Samsung Galaxy A20 Guides, News, & Discussion] mody00:
guys, anyone got a stable 10 gsi

i tried havoc os but it had some issues and evo x didn't boot

any suggestions or should i go for msm xtended ?

---------- Post added at 02:45 PM ---------- Previous post was at 02:45 PM ----------

guys, anyone got a stable 10 gsi

i tried havoc os but it had some issues and evo x didn't boot

any suggestions or should i go for msm xtended ?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
crdroid

https://sourceforge.net/projects/am...200104--v6.1-arm64-ab-vanilla.img.xz/download
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
Physwizz,

One question: what about the version 6.3 of crDroid?, is it stable too?

https://sourceforge.net/projects/amber-gsi/files/crDroid%20v6.3/crDroid-10-v6.3-arm64-ab-vanilla.img.xz/download

Thanks
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
The ones listed in the op are the ones I've tested.
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
I installed crDroid 10 v6.3 but the phone remains in the crDroid's loading screen.

I am going to try installing AOSP 10.0 v213 from phhuson:

https://github.com/phhusson/treble_experimentations/releases/tag/v213
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Follow these instructions

https://xdaforums.com/showpost.php?p=80184282&postcount=2
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
Yes. I did follow your instructions for the flashing of crDroid 10 v6.3. Let's see what happens with AOSP 10.0 v213.

---------- Post added at 11:45 PM ---------- Previous post was at 10:46 PM ----------

The Android 10 GSI ((AOSP 10.0 v213)) boots fine.

I installed the following image: system-quack-arm64-ab-gapps.img (AOSP 10.0 v213) and followed step 1e (install modded Magisk by ianmacd) but it looks like there's already a superuser application and at the beginning appears a message that says: "install superuser - su binary out of date". Also when Magisk Manager is opened it begins to search for updates but it remains searching and nothing happens.

I know that the extras page of LineageOS:

https://download.lineageos.org/extras

has a su removal (arm 64) file: addonsu-remove-16.0-arm64-signed.zip. I am not sure if this is the right file in order to remove su from AOSP 10.0 v213.

What would the right procedure to remove su from AOSP 10.0 v213?

Thanks in advance.

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Try to run an app that needs root access.
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
I installed Root checker and Titanium Backup and both ask for root access (via the Magisk interface). Also I restored some apps with Titanium Backup.

I think that I am just going to disable the superuser app that comes with AOSP which doesn't seem to work at all.

Thanks.
[Samsung Galaxy A20 Guides, News, & Discussion] Engineer_Virus:
Hello everyone it have been so long.

I need your opinion on what 10 gsi should I use (stable and up to date).

Plus there's a new kernel is it worth it?
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
Hi.

I would recommend AOSP 10.0 v213; its security patch is on March 5th 2020.

I installed this image: system-quack-arm64-ab-gapps.img.xz

Regards

---------- Post added at 02:42 PM ---------- Previous post was at 02:27 PM ----------

Hi phiswizz,

In the instructions provided for the installation of a GSI there are two branches: Android 9 and Android 10. I followed the Android 10 branch (I installed an Android 10 GSI).

But there is a detail in the Android 9 branch: there is a corner fix -> A20_Gsi_CornerFIX.zip (which includes AOD; by the way what is AOD?).

The corner fix is absent from the Android 10 branch. Question: is it safe to install the corner fix with an Android 10 GSI?

Thanks in advance

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I havent needed corner fix with the newer GSIs

AOD is always on display. It is like a dark lockscreen.

I have a flip cover so I don't use it all the time. It also uses battery.

There's one built into msmxtended which can be set to come on when you pick up the phone,
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I'm using this one now

https://xdaforums.com/galaxy-a20/development/rom-stock-heavily-modded-t4061751
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
I think that I do need to apply corner fix with AOSP 10.

One more question: if I install A20_Gsi_CornerFIX.zip via the recovery, can i uninstall it if something goes wrong?

Thanks
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
restore your backup
[Samsung Galaxy A20 Guides, News, & Discussion] Engineer_Virus:
[MENTION=5440376]physwizz[/MENTION] I'm having a problem using MSM extend gapps included

Google apps don't work play store crashes, I used gsi_certify_fixed.zip also the same.

While Havoc with gapps works perfectly.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I can't work out why various GSIs work well for some and not for others.

I have trouble with pixel while others find it easy to run.
[Samsung Galaxy A20 Guides, News, & Discussion] Engineer_Virus:
That's sucks MSM is better than Havoc, I will try again.
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
msm is better than the Rom stock (oneui)? I mean power in general ...
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I like it for the tweaks

But I'm not using it at the moment.

I'm using this rom

https://xdaforums.com/galaxy-a20/development/ultimate-pie-rom-samsung-a20-variants-t4063399
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
and that Rom how is he ...??
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
Hi phiswizz.

One question: are there tools, apps or Magisk modules to configure what is presented in the ADO lockscreen? For example, show an image below the clock and date that, I assume, come by default.

Thanks in advance.

Regards.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
yes,

it can be adjusted in settings
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
I have reviewed all the available settings and I didn't find any adjustments for AOD. I suspect that I need to install a GSI that brings AOD by default and therefore available settings for it. Which Android 10 GSI brings AOD by default?

In this moment i am using AOSP 10.0 v213 with A20_Gsi_CornerFIX installed via the recovery (TWRP).

Thanks in advance.

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Running really great.

I can delete the apps I don't want by using titanium backup.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
The only aod that I like is on msmXtended.

It can be set to come on when you pick it up
[Samsung Galaxy A20 Guides, News, & Discussion] Des32:
ok, but I guess it's no better than msm?...

sorry for asking a lot ?.....
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
It's a matter of personal preference.

I might like it but you may not.
[Samsung Galaxy A20 Guides, News, & Discussion] Michuuuu:
Hello!

I have installed LineageOS 17.1 GSI on my Samsung Galaxy A20. MTP does not work. Do you have a fix for this? Best Regards
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
https://xdaforums.com/galaxy-a20/development/kernel-ripper-kernel-v1-0-t4020627