So I just got my dev edition (comes with unlocked bootloader) htc one m8. I managed to root it fairly quickly by flashing TWRP. I then noticed there was another OTA update (I already updated once) for upgrading from 4.2 to 4.3. So I thought that I should flash it and learned that I needed to go back to stock recovery. I had made an adb back up using the command (adb backup -apk -all -f backup.ab).
I didn't back up my stock recovery and tried to find one for my phone. I came across a thread here that had recovery images and it said to check the main-verison of my phone but it came up blank. What can I do to go back to being unrooted so I can update the stock rom? At this point in time I'm not interested in getting a custom rom and wish to stay on stock for a little while.
I can see software number in settings > about. It's 1540 can I just use that to get the stock recovery?