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原帖由: oldturkey03 ,

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David mthobwa, try to  charge it with the wall charger for 15 mins. Then, while its still plugged in, hold vol down and lock buttons for 10 secs, repeat until phone vibrates. Disconnect from charger hold the same buttons again and it should vibrate again and start up. Then get it back on the charger. This was an issue with the 800 and 900 series Lumia and usually appeared after firmware update.  Of course you can and should also try a new battery. that way you have a known-good starting point.

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