contentious off & on

Hi abdulmenan, here are some answers to some previous questions for your model. I would start with a new battery first. I hope this helps. Please let us know, Thanks, John

Galaxy will not turn on

No matter what you do Galaxy won't turn on or is continuously restarting.

Dead/drained battery

If your Galaxy won't turn on you may simply have a drained or dead battery, especially if the device hasn't been used in a while. Try plugging your galaxy into a computer or AC adapter and wait to see if device starts to charge. If device does not respond to either charging source you may need a battery replacement.

Faulty Motherboard

If your Galaxy does not respond to being plugged into a power source, the most plausible problem might be the motherboard. For instruction on how to replace motherboard view this page

Glaxy grand prime 531 auto off