Please help me

[Sahilattri001]

Hi i have recently installed custom rom in my device......but when i going to rollback to flash stock rom with odin tool it fails....i tried to flash with lastest firmware but it shows sw rev check fail ( bootloader ) device 7. binary 6...... please help me

[Anikroyale]

You cannot because the bootloader is updated and once it is done, you cannot do anything. Google does not allow rollback once bootloader is udpated.