These all include stock versions of:
- Kernel (boot.img)
- Bootloader (hboot)
If you're looking for a way to return to stock these files will help you get there. These can be flashed whether you are S-OFF/S-ON however, if you are S-ON you might need to relock the bootloader.
If you're looking to flash everything included in the zip:
- Simply rename it to 0P4EIMG.zip and place it in the root folder of your external SD
- Then reboot to the bootloader
- Press the Power button once you're at the bootloader to switch from fastboot to hboot and then follow the prompts
If you're unlocked and looking to only flash the kernel or recovery, then you can simply extract the desired .img file and use the fastboot commands to do so.
Virgin Mobile US [Sprint] 2.15.652.3 : [Drive] / [Dev-Host]
nTelos [UTStarcom] 2.15.557.3 : [Drive] / [Dev-Host]
Koodo [TELUS] 2.14.661.3 : [Drive] / [Dev-Host]
Wind Mobile [GLOBALIVE] 2.14.1500.6 : [Drive] / [Dev-Host]
Vodafone Hutchison Australia (VHA) 2.14.862.10 : [Drive] / [Dev-Host] / [MEGA]
hTC Asia 2.14.707.6 : [Drive] / [Dev-Host]
HTC Europe 2.14.401.6 : [Drive] / [Dev-Host]
Akishima, blue74lion, bunyan69, iCreck, mrplowdan, & nullity for sharing their KitKat OTAs in this thread.