[GUIDE] Install GSI on Galaxy S9 Snapdragon

[FedericoPeranzi]

​

I'm not responsible for whatever damage this could possibly cause to your device.

Some information you should know..

Full TREBLE Documentation here https://source.android.com/devices/architecture
Generic System Image (GSI) Documentation here : https://source.android.com/setup/build/gsi
Make sure you install TWRP - thanks to klabit87

For S9: https://twrp.me/samsung/samsunggalaxys9qcom.html

For S9+: https://twrp.me/samsung/samsunggalaxys9plusqcom.html

If any bugs you face, Report them to the appropriate Threads of the GSI you installed or github issues section, as those are not mine to fix i only provide Guide that allows GSIs to run on.

- STEPS FOR INSTALLING GSIs:

#IMPORTANT: The GSI security patch and the Samsung Official Firmware MUST MATCH

• Download the desired GSI (it MUST be A-only_arm64 Variantfor Pie vendor, and AB_arm64 Variant for Q vendor)
• Unpack it if it wasn't in .IMG format
• Wipe DATA, and reboot in TWRP
• Wipe Dalvik Cache, Data, System, Internal Storage and reboot in TWRP
• Go to TWRP , Install , Install IMAGE
• Pick your GSI and select SYSTEM IMAGE
• Install the kernel for GSI GSI Kernels
• In TWRP mount System, then go to ADVANDED, File Manager, and delete this file: system/bin/rw_system.sh (Ignore this for Android 10)
• Reboot system

- KNOWN BUGS:

• No Network bars (on andiod Pie) (Calls/data works)
  
• Fix Signal issue on Android 10 : Link

Best GCam for S9 Snapdragon:

GCam S9

GSI tested:

Phh-Treble

PixelExperience P

PixelExperience 10 BETA

Havoc-OS


ROM OS Version: 10.x
ROM Kernel: Linux 4.x

Created 2019-06-23
Last Updated 2019-12-01

News 2019-07-14:

Now the brightness works, you just have to do this:
Update the phone to the July security patch (This updates the vendor)
Then download the July patch of any GSI
Follow this Guide and enoy it.

News 2019-09-26:

The Autobrightness and the Ambient Dispplay works, you just have to do this:
Update the phone to the September security patch (This updates the vendor)
Then download the August / September GSI Image.
Follow this Guide.
Install the attached fix

News 2019-10-31:

Fix the fingerptint
To fix it you have to edit system/vendor/build.prop
Change this line: ro.vendor.build.fingerprint=samsung to ro.vendor.build.fingerprint=Samsung

News 2019-11-30:

Android 10 it's working with the last Samsung november security patch.

News 2020-01-02:

Fix bluetooth and headset audio on Android 10 GSI
To fix it you have to install the attached file: Fix_GSI_Sound

 

[klabit87]

Nice guide @FedericoPeranzi !! Excellent work!!

 

[Kaz205]

Gets me in a bootloop :/
Android 9
Gsi: Pixel Experience P arm64 aonly
Kernel: g9600_klabit_pie_gsi_v1.zip
Device: SC-02K

 

[ckbhawsar]

Gets me in a bootloop :/
Android 9
Gsi: Pixel Experience P arm64 aonly
Kernel: g9600_klabit_pie_gsi_v1.zip
Device: SC-02K

Have you unlocked bootloader and rooted previously?

 

[megaxp]

i have same issue.
get bootloop with RR os and havoc..
my phone have unlocked BL and stay in june update.

 

[FedericoPeranzi]

@Kaz205
@megaxp

To fix bootloop do this:

• Wipe data/system/cache/dalvik
• install g9600_klabit_pie_V5.2.zip
• Install GSI
• Install the GSI Kernel
• Delete rw_system.sh
• and then install Disable Force Encryption - SM-G9600.zip

 

[megaxp]

@Kaz205

@megaxp



To fix bootloop do this:

• Wipe data/system/cache/dalvik
  
• install g9600_klabit_pie_V5.2.zip
  
• Install GSI
  
• Install the GSI Kernel
  
• Delete rw_system.sh
  
• and then install Disable Force Encryption - SM-G9600.zip
  

Works on 9650? Thanks buddy


Enviado desde mi SM-G9650 mediante Tapatalk

 

[FedericoPeranzi]

Works on 9650? Thanks buddy


Enviado desde mi SM-G9650 mediante Tapatalk

Yes bro, it should works

 

[Kaz205]

Have you unlocked bootloader and rooted previously?

Yep. Multiple times.

---------- Post added at 02:21 PM ---------- Previous post was at 02:19 PM ----------

Have you unlocked bootloader and rooted previously?

@Kaz205
@megaxp

To fix bootloop do this:

• Wipe data/system/cache/dalvik
• install g9600_klabit_pie_V5.2.zip
• Install GSI
• Install the GSI Kernel
• Delete rw_system.sh
• and then install Disable Force Encryption - SM-G9600.zip

Thanks! Gonna try this out. Also, is the "Disable Force Encryption" file the same as "dm verity opt encrypt"?

 

[mezacorleehone]

great I was successful in installing GSI.

I only see 2 strong problems ..

1. some GSI rom tell me damaged Sd memory
2. Adjust brightness.

Everything else is fine.

Functional MTP with kernel V1.

.

I will have to return to stock rom

thank you very much.

 

[jorvacf]

I have a question, it is mandatory to be rooted? How can I install the GAPPS?

On Havoc´s tread there is a section called "goodies" with some improvements in order to fix some issues like the automatic brightness. Here is the link:

https://forum.xda-developers.com/project-treble/trebleenabled-device-development/gsi-havoc-os-t3930030

 

[FedericoPeranzi]

I have a question, it is mandatory to be rooted? How can I install the GAPPS?

On Havoc´s tread there is a section called "goodies" with some improvements in order to fix some issues like the automatic brightness. Here is the link:

https://forum.xda-developers.com/project-treble/trebleenabled-device-development/gsi-havoc-os-t3930030

Thanks Bro, I will test AutoBrightness and AOD fix abd reply

 

[jorvacf]

Thanks Bro, I will test AutoBrightness and AOD fix abd reply

Did the mods work?

 

[FedericoPeranzi]

Did the mods work?

I try to install it and have bootloop

 

[jorvacf]

I try to install it and have bootloop

That´s a shame. Did you figured out how to make it works? Are you still on GSI Havoc?

 

[Kaz205]

Worked! Thanks you very much. However, it seems that the brightness control (manual and auto) doesn't seem to be working.

 

[Akhayev]

Worked! Thanks you very much. However, it seems that the brightness control (manual and auto) doesn't seem to be working.

Did u try flashing oreo vendor ?

 

[Kaz205]

Did u try flashing oreo vendor ?

Hmm what is that?

 

[FedericoPeranzi]

That´s a shame. Did you figured out how to make it works? Are you still on GSI Havoc?

I on stock now, but i going to try the new Pixel Experience compilation, and may be it works.

 

[FedericoPeranzi]

Updated post