You cannot flash custom files without an unlocked bootloader.
This process will completely wipe your phone. Save photos, contacts, and messages to a cloud service or PC.
While dedicated, device-specific custom ROMs (like official LineageOS) are rare for the samsung a13 5g custom rom
These ROMs attempt to mimic the Google Pixel software.
Remove pre-installed carrier apps and heavy Samsung background services. You cannot flash custom files without an unlocked bootloader
Download the official TWRP recovery image ( .tar format) tailored for the SM-A136.
Upgrading your software manually offers several distinct advantages over stock firmware: no 48MP mode
and Odin (the flash tool).
Stock Samsung camera uses proprietary drivers. Custom ROMs will default to the basic Camera2 API. Your photos will look worse—grainy low-light shots, no 48MP mode, and video recording capped at 1080p 30fps with no stabilization.
If using a GSI image: Tap , select Install Image , choose your .img file, and select System Image as the target partition.
Go back to the Wipe menu, tap , type yes , and confirm. (This removes encryption). Step 4: Flash the Custom ROM