This may sound ignorant on my behalf, but I need to return my ThunderBolt to Verizon for a new one and need to unroot. The thread on Android Central sends me to a link on xda-developers.
I understood the first part which states, "Flash the above PG05IMG_MR1_no_hboot.zip to restore everything to stock + OTA BUT still will have the s-off bootloader.
Rename PG05IMG_MR1_no_hboot.zip as PG05IMG.zip, and flash through hboot"
I'm confused on the second part which is to restore the bootloader. It states, "To restore the bootloader, rename PG05IMG_hboot_1.4.0000.zip as PG05IMG.zip and flash through the bootloader. DO NOT FLASH THIS unless you are absolutely sure PG05IMG_MR1_no_hboot.zip flashed to your device, without issue."
The reason for my confusion is do I do the second part in hboot just as I did the first? Or is there something else that needs to be done that I'm missing? Someone mentioned adb in one of the posts but didn't see anything about adb in those instructions. Thanks kindly if you can help!!