hey, i'm having a problem recently windows update bricked my bios i was able to recover by downloading the bios and i copied it and renamed it to usb fat32 "GL502VMZ.bin" pressed Ctrl + Home and it restored successfully and i was able to use the laptop even restarted it then i though that the update will make the problem occur again so i though why not flash the newer update i placed it on the usb started the laptop while pressing the Ctrl + Home and it bricked my laptop again now i'm trying to restore back to the old bios but i can't please help

How are you programming it? Do you have external programmer?