[ONE X] [URGENT] Phone is in a "Unfortunately, has stopped." loop.
I have a really bad problem and I need to get my phone working since I am leaving on a holiday in 2 hours!
All I did was install some new theme and then clicked "Reboot System UI" and now it keeps coming up saying "Unfortunately, has stopped working.'
I have Fast Boot on so I cannot access bootloader and I do not have USB Debugging on.
PLEASE HELP ME I DO NOT KNOW WHAT TO DO.