Samsung Galaxy J4 Bootloader Mode
How to unlock Bootloader Mode on your Samsung Galaxy J4 to gain full control over startup settings. Follow our clear guide for effective device customization for best results.
STEP BY STEP
Bootloader Mode · Unlock Bootloader · ROM Installation · Custom ROM · Firmware Unlock · Device Bootloader · Boot Mode · Developer Mode
You can delete all data on your SD card by navigating to Settings > Battery and device care > Storage > SD card > Format > Format SD card.
