Originally Posted by yarrimapirate
Since I'm not entirely familiar with the problem, I'll ask grim to expalin it to me so I can properly document it in the OP. Thanks for the heads up!
Hboot protects itself, I thought sbl3 verified hboot, then it protected itself but that's not the case. Sbl3 is controlling emmc mode from my understanding...
p9 (sbl3) sets emmc mode before p12(hboot) sets protection...........p1,2,3 will never be vulnerable to the same exploit as they have already set their protection well before emmc mode. They are the first 3 partitions so you cannot brick anything earlier in the chain. So, just say, hboot was p7, it would protect itself before emmc mode, and would never be vulnerable. -18th.abn
However, if for any reason you cannot flash Kernels/Radios.. Just run the 1.85 RUU and your issues will be solved.
To RUU downgrade, you will need to pull mmcblk0p23 from your phone and hex edit it. To do so, open terminal emulator on your phone..
# dd if=/dev/block/mmcblk0p23 of=/sdcard/mmcblk0p23
Open this in a hex editor of your choice.
at 0x0A0 you will see
x being whatever number is listed..
change it to 1.00.000.0
Place back on your sdcard
open terminal emulator
# dd if=/sdcard/mmcblk0p23 of=/dev/block/mmcblk0p23
reboot to fastboot and lock your bootloader. Boot into your ROM and RUU downgrade
Nexus 5 - On the way
Nexus 4 - Current
HTC One XL - Dead
HTC Aria - Sold, no clue where it's at now