Yes, but you must use PhoenixSuit. Local downgrades often fail due to version signature mismatches. Always keep your original stock firmware backup on your PC.
Backup your current MCU and firmware before doing anything. yt9213aj firmware update patched
Identify your specific build (e.g., K2501_NWD or K2501_UP ) in . Format a USB drive to FAT32 . Yes, but you must use PhoenixSuit
: Download the patched firmware (e.g., from XDA Forums ) and copy the files to the root directory of your USB drive. yt9213aj firmware update patched