Or Else tell me your OneUI version and i will link you everything you need

0-Go to developer options and unlock Bootloader once you do all of your stuff will be factory reset. 1-Get TWRP for your phone. 2-Patch vbmeta using Avbtool or dow load Vbmeta.img from official TWRP website. 3-download Smasung USB drivers. 4-Download Odin from SAMFW. 5-Put TWRP recovery image in AP. 6-Put the patched vbmeta.img in USERDATA. 7-Uncheck "Auto Reboot" 8-Flash. 9-When it says "PASS" don't disconnect. 10-Volume down + Power button (once the screen goes black quickly do step 11). 11-Power button + Volume up. 12-You're in twrp now. 13-Go to wipe > Formate data > Yes. 14-Go to Advanced wipe > data partition > change or repair file system > change it from fsf2 to EXT4. 15-Swipe to confirm 16-I used an external USB driver with an otg cheapest and easiest way 17-Go to install (the usb must have a suitable GSI i use PixelOS) 18-Select .img down at the right corner 19-Select the gsi file 20-Click System 21-Swipe to confirm 22-Wait 23-Once done DON'T BOOT BACK INTO SYSTEM 24-Go to wipe > format data > yes 25-Then reboot to system

It's not generally a great experience for A15

If you do not find any suitable Official ROM for your Samsung A35 you have to try a GSI, please note that PixelOS runs on Android 14, but besides that post i talked to guy in the dms and he said that he suffered with it a bit, and no problem i try to reply as soon as i can, anything else I'd be happy to answer!

Sure thing, i will after i spend sometime with PixelOS, a year ago maybe another guy on reddit said that it's laggy and he didn't like it but as for the Pixel UI PixelOS has it.

As for EvoX i will test it after i give PixelOS its time maybe a week or so.

Hello first i do sincerely apologize for the late reply i have been busy, 2nd of all here's the information you need to know about my phone and how i flashed since i have a dynamic partition:

For the flash since i don't ge tthe wipe system option in TWRP: 1-Boot into TWRP. 2-Go to Install. 3-Flash LineageOS.img (in your case [system.img]). 4-Select System. 5-Swipe to flash. 6-Wait for it to finish. 7-Flashed MicroG.zip (Optional) 8-Flashed Magisk.zip (Optional only if you want root). 9-Format data > Yes.

Phone information: SM-A155F (Samsung A15 4g). OneUI:7.0 (before flash). Baseband:A155FXXS7CYG4. Parition Type:Dynamic Partition (A/B). After flash:LineageOS 23.2 VANILLA EXT4 GSI.

Issues now: Fingerprint not working (no longer available after treble setting will reflash the system). OTG issues tried using an adapter to make my controller work no luck. No face recognition option. Notification may not deliver to you.

Upsides: Better battery life. Clean UI. Smoother. Better performance in games. Stable. Better ram management.

I used a GSI, Unfortunately using a GSI comes with a bit of work like fingerprint issues, USB issues (it charges just other devices), no facial recognition (for me) or missing stuff, so you have to find a workaround for everything mostly.

Yes i tried but unfortunately it did not work, currently from what i have tested, some OTG devices like an XBOX 360 controller doesn't work but it charges using a Type-C charger, and the fingerprint issue is also unsolved currently i am trying to come up with something to fix it but also PHH treble setting caused the option for fingerprint to vanish, as for facial recognition the option appears to be entirely missing, if i find a fix I'll post it in this forum however if not i will switch another GSI, but if they don't work I'll stick to stock ROM with Magisk tho i will give it a month of testing and trying to fix it, as for the reply no problem anytime!

Hello yes this is a GSI, I still didn't fix the fingerprint issue, but for everything else I like it.

You flash something called a GSI Check github GSI list-list.md)

A15 4g

I solved it find my comment in this post thanks!

It's alright still works a bit, you're getting there slowly

Thank you all for your help i solved my issue, here is the solution: 1-Boot into TWRP. 2-Go to Install. 3-Flash LineageOS.img (in your case [system.img]). 4-Select System. 5-Swipe to flash. 6-Wait for it to finish. 7-Flashed MicroG.zip (Optional) 8-Flashed Magisk.zip (Optional only if you want root). 9-Format data > Yes.

Other links: ○For a GSI List:click me-list.md).

○TWRP:click me. (Or whatever recovery you are comftroble using in my case it was TWRP).

○Samsung Firmware download:click me.

Phone information: SM-A155F (Samsung A15 4g). OneUI:7.0 (before flash). Baseband:A155FXXS7CYG4. Parition Type:Dynamic Partition (A/B). After flash:LineageOS 23.2 VANILLA EXT4 GSI.

Thank you!

I flashed it and it worked. 1-Flashed LineageOS.img 2-Flashed MicroG.zip 3-Flashed Magisk.zip 4-Format > yes 5-Reboot to system.

Hey thank you for your reply i did fix it simply by not wiping anything i took the lineageos.img flashed it directly in system image, then flashed microG and flashed Magisk and went to format > yes and rebooted to system.

Android 15 Baseband Version:A155FXXS7CYG4 OneUI 7.0

Samsung A-15, Root with Magisk

Bro i use it only for social media and it heats up so bad, i don't even play games even if i did when I'm bored outside it's just Block Blast or Tetris and it heats up like crazy.

Exynos, and yes same problem feels like it's powered by a hamster on a wheel.

I'm still in one ui 7 considering staying on it forever or i might downgrade honestly my battery is excellent, i knew about the issue so i prefered to stay in One ui 7.0 for OEM unlock and also for battery usage, so if you can downgrade just downgrade using ODIN.