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Basically my phone suddenly died and it wont come back on. I've left it in charge for hours with various cables and wall kits (including original). Is my phone really dead? I've also tried resetting the phone by holding the combination buttons. Any idea?
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me just like any other phone (device) start with replacing the battery. That will give you a known-good starting point. If your phone starts with that and charges you know it is the battery. If it does not charge the new battery, check the charging connector for any damage. Use a multimeter to measure the voltage on the board to see if it does get the proper voltage. Should your phone not power up with a new battery check what Samsung suggest:
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