help bootloop problem

[drevlin]

OK so I have a Samsung galaxy proclaim. It is rooted and It has stock recovery. I accidently changed something in the build.prop and the phone restarted and to find out it got stuck in a boot loop. The USB port on the phone is broke so using a computer is out of the question. I have tried clearing cache from recovery menu and ressetting the phone multiple of times with no luck with a fix.......
So my question is... is there any possible way of fixing my problem? Maybe with the apply an update from the SD card option in recovery? Which by the way every time I try to use that option I always get the error signiture verification denied update aborted.... so any suggestions? I would be so greatful.

 

[Rukbat]

You can SD card boot, even to fix a hard brick, but then you need the USB port to go any further. Fixing a phone with no USB port is like walking without legs. If you can open the phone, and get some 30 gauge or thinner insulated wire, at least tack on a microUSB port for the repair work.

 

[drevlin]

Yeah I figured that may be my only option at this point... I was just hoping for an alternative route. Thanks for your response though

 

[MikeEthio]

Don't you've backups if you do try to restore it, always make backup before changing anything on your phone so if it goes wrong you'll restore your backup.

 

[drevlin]

Yes I have a backup of everything on and about that phone but I don't have cwm recovery. Just stock. And I have a broken USB port. Is there another way to restore my build.props?