Smartphone Questions? Ask A Smartphone Technician for Answers
Hi there and welcome to Just Answer, my name is ***** ***** I look forward to helping you.
I’m sorry to hear you're having trouble with your phone. I know that can be frustrating. Hopefully, we can get this resolved quickly.
This is usually an issue with the Firmware, so I would first like you to do this please.
Remove the charger from the phone and hold the power button to off for 60 seconds.
Release, then connect the charger and try to turn on the phone and update whatsapp.
Let me know the results please