Why won't back button work on the Samsung Galaxy Grand Prime?

My Samsung Galaxy Grand Prime back button doesnt work,i could be from a fall like 30cm but i doubt it.Please help




Your phone fell. Even if it's just 30 cm there is still a possibility that something inside was broken especially if you experienced the back button malfunction after the accident. Contact Samsung to find out where you can send or bring your phone for repair. If they find that it's just a defect, then you have nothing to worry as the repair will be covered by warranty. But if they see that something got broken inside, then you will shoulder the cost of repair.



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