I recently had the pleasure of installing a new ROM on my HTC Droid Incredible. As part of the ROM installation, I ran into an issue where whenever I installed a new ROM, it would get stuck in an endless reboot cycle, and I would have to revert to my old ROM to get back in action.
After doing a bit of reading, I discovered that my HBoot version was too old, and I had to upgrade it to 0.92. It had been a while since I had installed it in the first place, so I figured I’d document how I upgraded it for future reference.
This article is provided as is. I make no promises that it will work for you, and I am assuming you know what you’re doing, otherwise you run the risk of turning your phone into an expensive paperweight.
First, download the latest HBoot 0.92. You will need to change the filename to PB31IMG.zip and upload it to the root directory of your memory card. If PB31IMG.zip already exists, overwrite it.
Reboot your phone into Recovery Mode (on the Droid Incredible, it’s holding the volume down key while the phone is booting up). HBoot will automatically see that there is an update, and simply choose to install it. Verify that you are using a version of HBoot older than 0.92 before moving applying the update (or you will acquire a new paperwieght).
When the update is done, reboot the phone into recovery mode again to verify the HBoot version number. If all is good, reboot the phone again, and boot into the normal mode. Delete PB31IMG.zip, and you are all done!