Before attempting to install a custom ROM, you must ensure your device is ready:
The A04 needs TWRP (Team Win Recovery Project) to flash GSIs. samsung a04 custom rom new
Now in recovery mode, Leo performed the "wipe of the old world," clearing out the system and data to make room for something new. He had chosen , a custom ROM specifically refined for his SM-A045X model. Using ADB sideload , he watched the progress bar crawl across his command prompt as the new OS streamed into his device. Before attempting to install a custom ROM, you