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GSI for the Galaxy A20

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By physwizz, Senior Member on 4th September 2019, 09:23 PM
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What is GSI?
GSI will allow you to install an alternative ROM on your Galaxy A20?
No longer will not be restricted to the Samsung ROM.
These ones worked for me
1. AOSP 9 v119
https://github.com/phhusson/treble_e...tions/releases
2. Floko
https://drive.google.com/drive/mobil...VVXXJ5-MUVAsSq
3. Arrow
https://sourceforge.net/projects/arr...arrow-9.x/GSI/
4. Havok
https://forum.xda-developers.com/pro...oc-os-t3930030
 
 
4th September 2019, 09:24 PM |#2  
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Installation Instructions

1. Make sure your A20 is rooted (https://forum.xda-developers.com/sho...95&postcount=4)
2. Backup with Titanium Backup (optional)
3. Install TWRP
https://forum.xda-developers.com/sho...18&postcount=2
4. Backup boot, data & system onto external SD or usb-otg. If something goes wrong you should be able to restore the phone using TWRP.
5. Installing GSI from TWRP.
a. Download the desired GSI (it MUST be A/B_arm64 Variant)
-One GSI can be found in post #1
b. unpack it if it wasn't in .IMG format
c. Go to TWRP , Install , Install IMAGE
d. Pick your GSI and select SYSTEM IMAGE and go to wipe, advanced, wipe both caches
e. Reboot. If that doesn't work reboot to TWRP Recovery and flash "GSI_Fix_boot.zip"
GSI_Fix_boot.zip
Ignore the message that says can't mount storage
f. Reboot system. If that doesn't work reboot to TWRP and wipe data. Then reboot system.
Enter all data.
Reboot into TWRP and backup boot, data & system

You may need to flash Magisk zip to get root.
This worked for me
4th September 2019, 09:24 PM |#3  
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Some interesting links.
https://forum.xda-developers.com/sho...&postcount=199

phhusson treble releases
https://github.com/phhusson/treble_e...tions/releases

GSIs for A50
https://forum.xda-developers.com/gal...t3934005/page1


AOSP GSIs
https://source.android.com/setup/build/gsi


GSI for the A70
https://forum.xda-developers.com/gal...hread-t3956230

List of all GSIs
https://github.com/phhusson/treble_e...%28GSI%29-list

Project Treble
https://forum.xda-developers.com/project-treble
5th September 2019, 03:35 AM |#4  
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Only this one for install? I Will Search another gsi
5th September 2019, 04:37 AM |#5  
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Quote:
Originally Posted by alexHdz

Only this one for install? I Will Search another gsi

It looks like this one comes with GApps and su built in.
5th September 2019, 04:39 AM |#6  
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Quote:
Originally Posted by physwizz

It looks like this one comes with GApps and su built in.

WiFi not working I guess
5th September 2019, 04:52 AM |#7  
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Quote:
Originally Posted by alexHdz

WiFi not working I guess

I thought that problem was only for Android 10
5th September 2019, 11:24 AM |#8  
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I tried to install GSI today but it didn't work.
Had to do a factory reset.
5th September 2019, 01:06 PM |#9  
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Quote:
Originally Posted by physwizz

Possible Installation Instructions (they will become more precise as more information becomes available)
1. Make sure your A20 is rooted (https://forum.xda-developers.com/sho...95&postcount=4)
2. Backup with Titanium Backup
3. Install TWRP
https://forum.xda-developers.com/sho...18&postcount=2

4. Backup system onto external SD or usb-otg (exclude data)
5. Install GSI from TWRP.
a. Download the desired GSI (it MUST be A/B_arm64 Variant)
-One GSI can be found here (https://forum.xda-developers.com/sho...&postcount=199)
b. unpack it if it wasn't in .IMG format
c. Go to TWRP , Install , Install IMAGE
d. Pick your GSI and select SYSTEM IMAGE
e. Reboot to TWRP Recovery
f. Flash "GSI_Fix_boot.zip"
Attachment 4815497
If you can't get TWRP you may need to install via Odin.

I'm not sure of any of this at the moment.


Hi guys! I try to install android 10 gsi, however when I go into twrp mode not recognizing the rom img what can it be?

I rooted and twrp A205G
5th September 2019, 08:35 PM |#10  
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Quote:
Originally Posted by physwizz

Possible Installation Instructions (they will become more precise as more information becomes available)
1. Make sure your A20 is rooted (https://forum.xda-developers.com/sho...95&postcount=4)
2. Backup with Titanium Backup
3. Install TWRP
https://forum.xda-developers.com/sho...18&postcount=2

4. Backup system onto external SD or usb-otg (exclude data)
5. Install GSI from TWRP.
a. Download the desired GSI (it MUST be A/B_arm64 Variant)
-One GSI can be found here (https://forum.xda-developers.com/sho...&postcount=199)
b. unpack it if it wasn't in .IMG format
c. Go to TWRP , Install , Install IMAGE
d. Pick your GSI and select SYSTEM IMAGE
e. Reboot to TWRP Recovery
f. Flash "GSI_Fix_boot.zip"
Attachment 4815497
If you can't get TWRP you may need to install via Odin.

I'm not sure of any of this at the moment.

i tried install any GSI on my A205F , but it's keeps bootloop , any suggestions to fix ?
5th September 2019, 09:08 PM |#11  
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Quote:
Originally Posted by hwp_2804

i tried install any GSI on my A205F , but it's keeps bootloop , any suggestions to fix ?

I have the same problem on 205yn.
which method did you use to install twrp. there are some 205f users having trouble installing twrp
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