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really need help for my samsung galaxy!! At first my screen used to get frozen so i used to do hard factory reset for it but still it used to persist often then once when i factory resetted my phone the touch screen started working perfectly fine!! but then the menu key & the back key stopped working! only the home key & other rest of the keys are working. i think its a software problem because the light still works when i switch on or whn i press the home button. I seriously need help!! Thank you in advance!!!

You can try application on Play Store. Search app button savior non root. Download and install it. This for jellybean only.

Replaced my dock connector and now my menu or my back buttons work. On a Samsung galaxy s4