Hi.

I'm not a user of this phone, but my gf is. She's facing lots of problems after 5.1.1 update.

1) Can't receive push notifications for Whatsapp
2)Overheating
3)Extreme battery drain (89%-0 overnight, just listening to music)
4)Can't view contacts
5)Can't save new contacts

Told her to wipe cache but so far it's useless. So, go for full reset?