when flashing a stock os is sat udc start sys rev check fail refer 3< binary 1

What is SW rev check fail?

sw rev. check fail(bootloader) device 8 binary 6 means that the ROM you have downloaded has a binary 6 while the device has a binary 8. In Android, or at least Samsung phones you cannot go to a lower binary than the one present in your device.

How do you fix the SW rev check fail fused 2 binary 1?

CHECK FAIL : fused:2, Binary: 1 is when you try to downgrade aboot. mbn (bootloader) or try to flash incorrect system/csc etc.. If you get this message , just reboot in Download mode and flash correct package..

Can I downgrade bootloader?

Whether you can downgrade your device at all depends on whether you can unlock the bootloader. Devices from Google or OnePlus can be easily unlocked, while those from Huawei, Samsung, or Nokia may be difficult or outright impossible to unlock.