So I wanted to remove a google account from my (rooted) phone, and I deleted accounts.db from my data/system/ folder. I rebooted the phone and realized I didn't even have contacts anymore, so I moved the accounts.db back to where it belonged. I then rebooted my phone, and it has been stuck on the boot screen since!
I feel devastated... I don't know what to do...
I tried booting into recovery, but the screen says:
"AP Fastboot Flash Mode (S)
0A.77
To return to normal mode - first press power key to power down
Device is LOCKED. Status Code: 0"
What can I do?? I'm so.. sad!!
Everything is on that phone!!! 
Please help...
I tried booting into recovery, but the screen says:
"AP Fastboot Flash Mode (S)
0A.77
To return to normal mode - first press power key to power down
Device is LOCKED. Status Code: 0"
What can I do?? I'm so.. sad!!
Please help...