On redmi 2 2gb (HM2014813 / wt86047) when i set an alarm, the phone not activate when is connected with charger. I try to delete all the alarms and set it again, but not activated again. If phone is unblugged from the charger activated normaly.
if nothing work , maybe its time for a "clean istall". From fastboot , you need the fastboot rom (china or global) and MiFlash . After clean install you can update to latest rom :)
Shee under the battery the blue white sticker , what code have your divice 2014813 or 2014811 , RedMi 2 (2gb ram) have diferent versions and diferent roms ....