Root GS3 Verizon Help Some type of bootloop/brick

[Rqzm]

Ok So My GS3 Is running CM12 And its lollipop 5.1 and then a day later it started acting weird i just put reboot then it started like some type of bootloop it would go to the samsung screen and then shut off and then it would try to trn on alot of times and never does it can go into cwm recovery mpde but i i try to go into download mode it will shut off once i click continue............... PLIS Help

 

[James L]

Ok So My GS3 Is running CM12 And its lollipop 5.1 and then a day later it started acting weird i just put reboot then it started like some type of bootloop it would go to the samsung screen and then shut off and then it would try to trn on alot of times and never does it can go into cwm recovery mpde but i i try to go into download mode it will shut off once i click continue............... PLIS Help

If i'm reading what you wrote correctly you can get into Cwm but not download mode. Kind odd but O.K.
Did you make a backup in Cwm prior to flashing CM 12? If you did then factory reset in Cwm, skip the reboot, go back to the main menu, then restore the backup.
Or you could just reflash the ROM and Gapps, a factory reset to ensure things flash clean never hurts, at least in my opinion. Then reboot and back to normal.