Samsung Galaxy A20 - phhusson/treble_experimentations GitHub Wiki
Samsung Galaxy A20
Summary of what works and doesn't
Steps to install
- Update your phone to Android 11 if you haven't already
- Unlock bootloader
- Flash TWRP
- Reboot into TWRP and follow these:
- Backup (its important for if you do something wrong!)
- Disable file encryption with this
- Format Data (you will lose all of your files located in the internal storage)
- Wipe Dalvik, Cache, Data and System
- Download a GSI image. Preferably VNDKlite (Make sure it's an A/B image)
- Make sure your file extension is ".img" if its a zip, tar or xz (whatever) it probably needs to be extracted
- Move the system image to your phone and flash it to the "System Partition"
- If GApps aren't included and you'd like them, firstly resize the system partition through (Wipe>Resize or Format Partition>System>Resize)[if it says failed press repair then resize]. After doing all that you can now flash a GApps zip that's compatible with your Android version. (You can find it easily yourself)
- Reboot to System
Hardware support
Android 13
| Component | Comment |
|---|---|
| Camera | Yes* |
| Speaker / Mic | Yes |
| Headphones | Yes** |
| Bluetooth | Yes |
| WiFi | Yes |
| SIM / Mobile Data / Voice | Yes |
| VoLTE | Untested |
| Fingerprint | Yes |
| NFC | Untested |
| Offline Charging | No |
| MTP & PTP | Kernel dependent*** |
[*] To enable the wide camera go to Phh Treble Settings-> Samsung Features-> Tick "Enable access to all cameras" (Requires a Q/R vendor) and reboot. You'll also have to use a camera app that supports it, like Open Camera.
[**] Headphones may not work if you are using Eureka Kernel R11. In that case, downgrade to Eureka Kernel R10.
[***] Having USB debugging enabled whilst using MTP will crash the device
Android 12/12.1
| Component | Comment |
|---|---|
| Camera | Yes* |
| Speaker / Mic | Yes |
| Headphones | Yes** |
| Bluetooth | Yes |
| WiFi | Yes |
| SIM / Mobile Data / Voice | Yes |
| VoLTE | Untested |
| Fingerprint | Yes |
| NFC | Untested |
| Offline Charging | No |
| MTP & PTP | Kernel dependent*** |
[*] To enable the wide camera go to Phh Treble Settings-> Samsung Features-> Tick "Enable access to all cameras" (Requires a Q/R vendor) and reboot. You'll also have to use a camera app that supports it, like Open Camera.
[**] Headphones aren't detected on most versions of AOSP 12 due to issues with the overlay. This is fixed on AOSP 12.1 and higher.
[***] Having USB debugging enabled whilst using MTP will crash the device
Android 11
| Component | Comment |
|---|---|
| Camera | Yes* |
| Speaker / Mic | Yes |
| Headphones | Yes |
| Bluetooth | Yes |
| WiFi | Yes |
| SIM / Mobile Data / Voice | Yes |
| VoLTE | Possible** (enable "Request IMS network" and "Force the presence of 4G Calling service") |
| Fingerprint | Yes |
| NFC | Possible*** |
| Offline Charging | No |
| MTP & PTP | Kernel dependent**** |
[*] To enable the wide camera go to Phh Treble Settings-> Samsung Features-> Tick "Enable access to all cameras" (Requires a Q/R vendor) and reboot. You'll also have to use a camera app that supports it, like Open Camera.
[**] Unsure whether or not it actually uses VoLTE but it displays as its enable. (TESTING)
[***] NFC seems to be really slow and sometimes even unresponsive.
[****] Having USB debugging enabled whilst using MTP will crash the device
Test Log
First test by os54656 - SM-A205G , Firmware Version - treble_arm64_bgS-userdebug 10 QQ2A.200305.003 200314 test_keys - I think it is v214 Date tested - 2020-04-13
Second test by tristanbollard - SM-A205YN, Firmware Version system-squeak-arm64-ab-vndklite-gapps.img.xz from (AOSP 12.0 v400.c) of treble experiments - since 10/11/2021-18/11/2021 , Template ever so slightly modified from the previous test.
Third test by tristanbollard - SM-A205YN, Firmware Version Pixel_Experience_Plus_11_v313 from github which uses the base of phh_treble so it has the same bugs and issues as phh_treble, Since 18/11/2021-prior, Using Eureka-ONEUI3-Kernel-R8.0 as the kernel.
Fourth test by TBM13 - SM-A205G, GSI: phhusson's AOSP 12.0 v400.h (system-squeak-arm64-ab-vndklite-gapps-secure.img.xz), using stock Kernel and Vendor from Android R (11).
Fifth test by TBM13 - SM-A205G, GSI: ponces's Pixel Experience Plus v2022.11.24, using Eureka Kernel R11 (OneUI3 variant) and stock Vendor from Android R (11).
Template created by @zguithues and @hackintosh5