How to Unlock Bootloader Samsung Galaxy A50s SM-A507FN without Trigger KG State / RMM state Prenormal? If you want to flash Custom ROM and TWRP Recovery on Samsung Galaxy A50s ( SM-A507F, SM-A507FN, SM-A507GN, SM-A507FM, SM-A507YN, SM-A507W ), you need to unlock the bootloader first although OEM unlock option is enabled. This method will wipe all data on internal storage. So, make sure to backup your important data! the data can not be recovered. Watch the video in the bottom of this post. For locking bootloader visit this post How to lock bootloader Galaxy A50s.
Step by step to Unlock Bootloader Galaxy A50s :
- Enable Developer Options: go to Settings -> About device. Tap 7 times on Build number to enable Developer options.
- Enable OEM unlock and USB debugging options ( Settings -> Developer options )
- Download and Install Samsung Mobile Phone Drivers ( ignore this if you have installed it ) : http://developer.samsung.com/technical-doc/view.do?v=T000000117
How to Enter Download Mode Galaxy A50s
Enter Download Mode ( Turn Power off the phone, Press and hold Volume Down + Volume Up keys together then while pressing these keys connecting the phone to PC with USB Cable Data, release all keys when Download Mode appears ).
How to unlock Bootloader Galaxy A50s
- Unlock Bootloader : In Download Mode you see the long press Vol Up option to enter Device Unlock Mode. Unlock the bootloader ( that will wipe your device so be sure to backup of your data )
- Read description on the Unlock Bootloader screen then use Volume UP to select “YES” to confirm and “No” to cancel unlock bootloader and restart the phone.
- After Bootloader unlock, the phone will reboot and make sure the phone connected to the internet or triggers KG State / RMM State Prenormal.
- Setup the phone without google account etc.
- The Bootloader are unlocked!
Notes / Warning!
- Use at your own risk, I’m not responsible for bricking your device.
- Make sure to backup your important data before unlock the boot loader.