Development [ROM][12.1][ENCRYPTION][EOL] LineageOS 19.1 for A52 4G and A72

[Simon1511]

LineageOS is a free, community built, aftermarket firmware distribution of Android 12.1/12L, which is designed to increase performance and reliability over stock Android for your device.
LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.
All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

Supported devices
All variations of A52 4G and A72 (A525F, A525F/DS, A525M, A525M/DS, A725F, A725F/DS, A725M and A725F/DS) are supported, but only A525F (6/128 variant) is well tested as I have this device.

Working

• Audio
• Wifi
• Hotspot
• Calls
• WifiDisplay
• Bluetooth
• OMX
• Camera
• NFC
• Fingerprint
• Screen-Off-FOD
• Mobile data
• GPS
• DT2W
• ...

Bugs

• VoLTE/VoWIFI (Samsung's implementation doesn't work on AOSP)
• Audio output in VoIP calls is swapped (WhatsApp, Discord, etc)
• On some bluetooth Watches/Earphones In-Call sound is played from the phone's speaker/earpiece

Installation instructions

Recommended
Follow the guide on the LineageOS website: A52 4G | A72

Alternative way (TWRP/OrangeFox)

1. Make sure your device's bootloader is unlocked.
2. If not done before, flash blank VBMeta with Odin in AP slot.
3. Make sure to have the latest available version of TWRP/OrangeFox installed.
4. If wanted, backup all your necessary partitions (super, boot, data, EFS) before flashing this in case something goes wrong.
5. Download the lineage build for your device from the link below and optionally download your preferred GApps package too.
6. Flash the LineageOS zip using the "Install" button.
7. Optionally, flash Gapps right after.
8. Format data in TWRP/OrangeFox as the very last thing, otherwise you may end up in a bootloop if coming from stock ROM.
9. Wipe metadata and cache partitions. This only has to be done once when you install LineageOS.
10. Reboot

Downloads
You can find them here on a mirror hosted by me.

Gapps (choose arm64 and 12.1/12L): MindTheGapps | OpenGapps canary | FlameGapps Canary | NikGapps Canary

Old builds: LineageOS 18.1

Passing SafetyNet/Play Integrity

• Follow this guide.

Support

• Telegram

Donations
They aren't necessary, but if you like my work feel free to send me or LineageOS a donation.

Credits
To...

• Me, for spending my time on this project
• Whoever made the VBMeta disabler
• @Grarak for his fingerprint fix for A70 and DT2W fix
• @TheLeo2307 for testing on his A72
• @miamighost for testing on his A52
• Maybe more, feel free to tell me if I forgot someone

Source Code: https://github.com/LineageOS/android_kernel_samsung_sm7125

 

[Simon1511]

FAQ

Can I root my phone with this ROM?
Yes, just install the latest version of Magisk.

How can I pass safetynet?
Follow this guide.

Automatic camera flash doesnt work!
That's an issue with Lineage's camera app. Use GCam or any other camera app instead.

 

[Simon1511]

Unofficial changelogs

06-08-2022

-Updated blobs to A525FXXU4BVG1 respectively A725FXXU4BVE3
-Implemented proper screen-off-fod support (Settings->Display->Lockscreen->Long press fingerprint sensor....)
-Improved FOD dimming values
-Imported HotwordEnrollment blobs to fix "OK Google"
-Switched to OSS camera provider
-Slightly decreased vibrator intensity
-Enable correct reading mode in LiveDisplay
-Add Dolby audio effect (Actually works this time)
-Excluded AudioFX to improve Dolby effect
-Built FlipFlap to fix flip covers (Thanks for reporting @Peter_Petersen
-Corrected brightness for SunlightEnhancement mode in LiveDisplay
-Built AdvancedDisplay for advanced display modes
-Set ZRAM size to 5GB to improve performance
-Switched to CAF USB audio configuration to fix audio in phone calls with USB headphones/headsets
-Enabled pickup gesture support

04-07-2022

-June security patch
-Switched to using Samsung's HBM implementation instead of lighting up the whole screen when touching the fingerprint sensor
-Dim the screen if touching the fingerprint sensor
-Wake the screen if touching the fingerprint sensor during screen off or AOD instead of killing doze
-Fixed fingerprint sensor on A72 by dimming the screen (You may need to hold your finger a bit tight on the sensor)
-Correctly reset brightness on fingerprint errors
-Fixed the screen not turning on again if removing the phone from your ear during a phone call
-Added custom audio impl to fix audio in calls with Sim 2
-Disabled Dolby again (doesn't seem to work correctly for us)
-Re-enabled doze/deepsleep support
-Show correct fast-charging values

30-05-2022

-Updated to Lineage 19.1
-May security patch
-Enabled freeform windows
-Build SamsungDAP for dolby audio
-Fixed color calibration in livedisplay settings (Please note that not all display modes support color calibration)
-Show download mode instead of bootloader in advanced restart menu
-Re-enabled FM-Radio
-Enabled night display/bluelight filter
-Fixed audio with USB headphones/speakers/etc
-Correctly detect phone variant and set props accordingly
-Enabled encryption (FBE)
-Removed unused partitions from fstab
-Fixed USB mode not being select-able
-Enabled MAC randomization for WiFi
-SeLinux enforcing
-Use correct default network mode (4G)
-Enabled adoptable storage to work with FBE
-Set props from stock ROM to make Netflix select DRM L1
-Fixed proximity sensor not working at all
-Updated kernel to A525FXXS4BVA2
-Enabled burn-in protection

02-03-2022

-Updated to Lineage 19.0
-February security patch
-Updated all blobs and configs to A525FXXS4BVA2 (Android 12)
-Updated kernel to A525FXXU4BUL8 (Android 12)
-Unified more blobs
-Fixed screen rotation on A72
-Switched to AOSP WifiDisplay implementation
-Corrected status bar padding
-Built more blobs from source
-Switched to Clang r383902
-Disabled APEX compression
-Switched to UDFPS
-Fixed FOD on AOD
-Make FOD stay always on for working FOD on AOD
-Increased the amount of time the screen lights up when touching the fingerprint sensor
-Switched to stock health blobs
-Overall cleanup
-Enabled F2FS support for system partition
-Switched to newer AIDL libperfmgr power HAL
-Updated vibrator to AIDL to switch to manifest level 5 and match stock
-Fixed audio in bluetooth phone calls on A52 (for somehow still broken on A72)
-Imported APTX BT encoder from Pixel 5
-Enabled unofficial monet implementation

13-01-2022

-Latest lineage sources with december security patch (january one wasn't released yet)
-Updated blobs to A525FXXU4AUJ2
-Added initial A72 support
-Switched to OSS fingerprint HAL by [USER=4443334]@Grarak[/USER]
-Cleaned up unused config files
-Built lineage recovery for both devices
-Added missing overlay for the system to know that we have a notch
-Built more blobs from source
-Fixed A2DP offload and switched to AOSP bluetooth audio implementation
-Correctly boost brightness when the fingerprint sensor is touched
-Fixed fingerprint sensor not working when screen brightness is low
-Corrected size and position of the fingerprint sensor (And yes, the sensor is REALLY that big)
-Disabled screen off FOD for now since it doesn't work anyway
-Limit fingerprints to max 4 per user
-Temporary disabled FMRadio since it somehow broke with latest sources
-Built QCOM audio effects from source

20-11-2021

-Initial release

 

[ashraftheboss]

Nice to see someone's already got custom roms working on this phone!

 

[Droid365]

good job, i hope we see more roms coming for this device

 

[iam23]

nice one, but the fingerprint often doesn't work
8/128, twrp-3.5.2_10-0-a52q, have done all the installation instructions

 

[Simon1511]

nice one, but the fingerprint often doesn't work
8/128, twrp-3.5.2_10-0-a52q, have done all the installation instructions

What do you mean it doesnt work "often"?

If its for unlocking the phone when the screen is off then that is already a know bug and is currently not fixable.

Apart from that the fingerprint sensor always worked fine for me.

 

[ShaDisNX255]

Awesome work!

 

[zenaufa]

Amazing work! Thank you for creating ROM for A52

 

[faisal95bd]

I really appreciate the value you're providing!

 

[iam23]

What do you mean it doesnt work "often"?

If its for unlocking the phone when the screen is off then that is already a know bug and is currently not fixable.

Apart from that the fingerprint sensor always worked fine for me.

I'm sorry, I use google translate,
I know about the off screen bug.
I mean, sometimes it says "finger moved too fast", and after that happens the fingerprint can never work.
i know it's still early, thank you for the first a52 custom rom

 

[diegobenti]

nfc does not work properly.

 

[diegobenti]

2.Wi-Fi calls do not appear, therefore they do not work.
3. and unfortunately when installing this version you cannot go back to the original version, enter the boot loop

 

[axljohn]

does volte work?

and does battery life somehow improve over stock oneui?

 

[Simon1511]

does volte work?

and does battery life somehow improve over stock oneui?

Currently no (i dont know if its even possible to get to work on Samsung devices).

Probably yes.

 

[Simon1511]

nfc does not work properly.

Whats the problem with NFC?

2.Wi-Fi calls do not appear, therefore they do not work.
3. and unfortunately when installing this version you cannot go back to the original version, enter the boot loop

2. Not yet supported (if even possible to get to work).
3. Flash full stock and you should be fine.

 

[diegobenti]

Whats the problem with NFC?


2. Not yet supported (if even possible to get to work).
3. Flash full stock and you should be fine.

NFC, for example, does not work for me on "SUBE" cards from Argentina (bus cards), I have not tried on credit cards, but the bus card reads it but gives a reading error

 

[Simon1511]

NFC, for example, does not work for me on "SUBE" cards from Argentina (bus cards), I have not tried on credit cards, but the bus card reads it but gives a reading error

Thanks for reporting.

 

[tobiascarrizo]

Great job mate! Didn't expect someone already trying to bring LinageOS to this phone. Thank you very much!

 

[eraycetin]

Great news that someone is working on LOS for a52! Keep it up and thank you so much.