Depending on what you mean by going back to OTA.
Originally Posted by hoboX10
If you're on the ICS leak and the ICS OTA comes out and it's a lower version number than the leak. You can't go back to GB firmware without S-Off
If you're on the ICS leak and you want to go back to the GB RUU. No good without S-Off
Basically the premise here is that with S-On you can only go forward. With S-Off, you can go backwards as well.
Got S-off in 2 tries......only took 15 minutes to get the S-off,.....but my phone didn't go past the HTC screen initially...took me about 45 more minutes to get the recovery flashed and the phone booted again. The scary part was getting the phone revived again after I had S-off!
Now that you have s off, you can install amon ra recovery through hboot now instead of pushing it through cmd prompt on a pc. There is a specific file out there for doing this.This comes in handy when custom recovery is lost by installing new firmware.
sent from my galaxy tab 2