I was wondering if it's possible to make my S-OFF phone S-ON again, only with my own key instead of the manufacturer's. That way if I want to reflash my phone I can sign the firmware, but nobody else could without my permission. Has anyone thought of doing this, and would it be possible?
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Root S-ON with my own key?
- Thread starter flarn2006
- Start date
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- Tags
- htc thunderbolt
scotty85
Extreme Android User
im sure if you knew enuff about coding,etc. it could be possible,but ive no idea where to start,and honestly cant think of any benefits to doing so. assuming your s off via the old eng hboot,shadowmites patched hboot,or revoutionarys patched hboot, you can do anyrthing you want,and returning every thing to stock s-on is easy if needed.
even if you could sign your own files to pass the signiture checks,youd have to modify them all so theyd pass main version and other checks. IMO its not worth the hassle. there is absolutely no advantage whatsoever to being s on.
even if you could sign your own files to pass the signiture checks,youd have to modify them all so theyd pass main version and other checks. IMO its not worth the hassle. there is absolutely no advantage whatsoever to being s on.
Thanks anyway. I know there's typically no benefit to being S-ON (unless of course you want to return the phone), but I figured if it checked against my own key rather than the manufacturer's it would provide extra security.
By the way, I know S-ON-with-my-own-key wouldn't prevent this, but is there any way I can prevent someone from making a NAND backup through the recovery menu without my permission, and then just taking the file off the SD card? Like a password-protected recovery? (Or maybe having it encrypt the backups it makes?)
scotty85
Extreme Android User
nothing really comes to mind off the top of my head. pretty much no matter what you do,short of encrypting the nandroids,all someone has to do is remove your sd card,and pop it into another phone or a pc using a card reader.
you could deter someone a lil bit by having a password on your lock screen,then keeping "fastboot" checked,so its not as easy to boot to recovery from hboot,from powered off. someone would need to know what was going on,and pull the battery for a few seconds in order to access recovery from from powered off.
do you need a recovery on your phone? if you dont ever need to flash or modify things "on the fly" you could always leave your stock recovery in place. its pretty useless to someone trying to do something with your phone. biggest disadvantage would be whenever you wanted to flash a rom or make a backup,youd need to plug in to a pc with working adb/fastboot and launch your custom recovery into phone memory(what i call a temporary recovery in the htcdev unlock guide)
ill ponder it,and post back if anything else comes to mind
