Hints to fix Samsung B313E Keypad Problem Repair Solution: Check/clean the keypad PCB matrix. Clean/replace the keypad membrane.
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Samsung B310E Display Jumper Free Of Oxidation
Replace if damaged.– Check/ try to replace the LCD screen, the white LED’s on it may already been busted. It lets you stay active on both SIMs at all times.Here’ how to troubleshoot the Samsung SM-B310E Display problem:For quick fix, on minor problem like if the phone status shows no indication of being wet by any liquid, free of oxidation build up or the PCB board is still clean.– Check the Flex ribbon cable wire. This gives you the freedom to receive calls on one SIM (as call waiting), while you are busy talking on the other.
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