Problem unbricking HTC One M8 using mmcblk0.img - GSM-Forum

ludemon · 02-05-2021, 10:29

I extracted mmcblk0.img from a working HTC One M8 to create a bootable SD Card to unbrick another M8. This worked and was able to access the bootloader and recovery, however I am unable to flash a RUU without error using fastboot/RUU or XTC2Clip. I did restore a stock OS via TWRP recovery and everything appeared to be working except sound and microphone.
I am only able to move between OS, bootloader and recovery with the mmcblk0.img SD Card inserted. If the SD Card is removed and any reboot action is done the phone returns to EDL (qualcomm hs-usb qdloader 9008) mode.
Can anyone help to resolve this situation?

**wgmmmx1** · 02-18-2021, 16:48

Mean EMMC memory damaged in phone and is impossible fix it by software need exchange to new one, before read full security data from phone.

ludemon · 03-13-2021, 15:03

Actually now fixed. Needed to flash firmware before stock ROM.

gerwld · 01-14-2023, 01:03

Quote:

Originally Posted by ludemon

Actually now fixed. Needed to flash firmware before stock ROM.

Hello ludemon, could you please share mmcblk0 img file? It would be very nice to bring my phone back to life... Thank's!

02-05-2021, 10:29	#1 (permalink)
ludemon Junior Member Join Date: May 2008 Posts: 36 Member: 783157 Status: Offline Thanks Meter: 0	Problem unbricking HTC One M8 using mmcblk0.img I extracted mmcblk0.img from a working HTC One M8 to create a bootable SD Card to unbrick another M8. This worked and was able to access the bootloader and recovery, however I am unable to flash a RUU without error using fastboot/RUU or XTC2Clip. I did restore a stock OS via TWRP recovery and everything appeared to be working except sound and microphone. I am only able to move between OS, bootloader and recovery with the mmcblk0.img SD Card inserted. If the SD Card is removed and any reboot action is done the phone returns to EDL (qualcomm hs-usb qdloader 9008) mode. Can anyone help to resolve this situation?

02-18-2021, 16:48	#2 (permalink)
wgmmmx1 Moderator Join Date: Oct 2009 Location: Poland Age: 42 Posts: 10,174 Member: 1139057 Status: Offline Sonork: 100.109924 Thanks Meter: 4,428	Mean EMMC memory damaged in phone and is impossible fix it by software need exchange to new one, before read full security data from phone. __________________ Please do not Personal Message me for help or troubleshooting. They will be ignored. Use the forums! To get Instant help use "search" & follow "sticky thread"..!!! By respecting/following forum rules,You will be respected .!

03-13-2021, 15:03	#3 (permalink)
ludemon Junior Member Join Date: May 2008 Posts: 36 Member: 783157 Status: Offline Thanks Meter: 0	Actually now fixed. Needed to flash firmware before stock ROM.