what:
this is an EFI exclusive application (aka what runs on your BIOS chip). the name says it
should work on ALL Baytrail (did not tried other SoC but could be that works there too)
why:
some are having issues in using kernel based tools so this will work for them (hopefully)
how:
1. unzip in some folder (there are only 2 files in the zip, the efi loader and an additional tool)
2. place your bios in this same folder and IMPORTANT run the md5add tool on your bios file (md5add.exe your_bios_file your_signed_bios_file). the tool simply takes the original bios file, computes the md5 for it and then concatenates those two producing the output file. i could have left the bios file pushed to the tab "unsigned" yet it's better this way (so that you are SURE that the file that will be flashed is identical and no bits have been lost corrupted during the fastboot pushing etc). you can check with a hex editor, it only adds 16 bytes (the md5 hash) at the end. if you will try to push an 'unsigned' bios it will NOT accept it!
3. start in dnx mode and input:
fastboot flash osloader bios_flasher.efi
fastboot boot your_signed_bios_file
now wait and read the screen... everything goes AUTOMATICALLY
it seems that on some Baytrail devices (x98?) after the Intel flasher finishes writing the new bios it hangs (on my tab i never experienced that) yet i have owners of x98 that did have the hang. because of this the next verify operation will never start and the tab will hang... if such a case nothing much you can be done, but force a power off (in all the cases experiencing hangs the bios was flashed ok). the verify operation is not so much important (i never had a failed verify operation in past, moreover the flashing is done while in EFI/BIOS stage so nothing can interrupt it in order to mess the writes)
risks... of course there are (but i would say a less than flashing from windows or android)... but since you need to use this i guess it's either this or a flash programmer
ps. goes without saying ... WHAT bios file YOU will use is your responsibility so make sure you use a correct one for your tab model or you might HARD-BRICK!!!... this tool just takes it and writes it on your device!
Good Luck!
this is an EFI exclusive application (aka what runs on your BIOS chip). the name says it
should work on ALL Baytrail (did not tried other SoC but could be that works there too)
why:
some are having issues in using kernel based tools so this will work for them (hopefully)
how:
1. unzip in some folder (there are only 2 files in the zip, the efi loader and an additional tool)
2. place your bios in this same folder and IMPORTANT run the md5add tool on your bios file (md5add.exe your_bios_file your_signed_bios_file). the tool simply takes the original bios file, computes the md5 for it and then concatenates those two producing the output file. i could have left the bios file pushed to the tab "unsigned" yet it's better this way (so that you are SURE that the file that will be flashed is identical and no bits have been lost corrupted during the fastboot pushing etc). you can check with a hex editor, it only adds 16 bytes (the md5 hash) at the end. if you will try to push an 'unsigned' bios it will NOT accept it!
3. start in dnx mode and input:
fastboot flash osloader bios_flasher.efi
fastboot boot your_signed_bios_file
now wait and read the screen... everything goes AUTOMATICALLY
it seems that on some Baytrail devices (x98?) after the Intel flasher finishes writing the new bios it hangs (on my tab i never experienced that) yet i have owners of x98 that did have the hang. because of this the next verify operation will never start and the tab will hang... if such a case nothing much you can be done, but force a power off (in all the cases experiencing hangs the bios was flashed ok). the verify operation is not so much important (i never had a failed verify operation in past, moreover the flashing is done while in EFI/BIOS stage so nothing can interrupt it in order to mess the writes)
risks... of course there are (but i would say a less than flashing from windows or android)... but since you need to use this i guess it's either this or a flash programmer
ps. goes without saying ... WHAT bios file YOU will use is your responsibility so make sure you use a correct one for your tab model or you might HARD-BRICK!!!... this tool just takes it and writes it on your device!
Good Luck!
Download from this link
