What you should know about SP flash tool is that you shouldn't interrupt a flash or read back process. If you do, the phone will go off and not come on at all. You might get the 'USB device not recognized' error on further flashing attempts. If somehow, the process got interrupted and you now have a totally dead phone on your hands, don't panic. All you need to do is connect the phone to a computer (via a USB cord) or power source and leave it to charge for some time. It could take up to two hours but once the phone is revived, your battery could read as low as 1%. Just leave it to keep charging before powering it up.
ROM logo checksum mismatch checksum config 0x3d8 checksum Val 0x4d7. Can you check in the zip file that you extracted if it has any file with 'checksum'? I'm not sure it should be there, let me check. Last Edit: Nov 10, 2018 16:09:08 GMT by soniasophie9697. Ukpaul New Member. While rooting you Android device, you have to do the process of restoring backups that was taken before in ClockworkMod (CWM) recovery. While most of you will be successful in restoring the backups, some of you will get the “md5 sum mismatch error”.