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The Microsoft Lumia 640 LTE is a Windows smartphone developed by Microsoft. This was released on March 2, 2015, identified by model number RM-1073.

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Why can't I get my phone to turn on?

I let the battery get too low and now I can not get my phone to come back on. I can feel the phone vibrating and hear it buzzing when it is plugged in but can’t get it to turn back on. I plugged it in to my computer and the PC message says “ The last USB device you connected to this computer malfunctioned, and Windows does not recognize it.” Any suggestions?

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Was there anything else that occurred before this happened, besides the battery dying?

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It has been several months of me try to troubleshoot this problem. I purchased a new battery to see if that was the problem and the situation did not change. I took it to a repair shop and was told that they did not repair my model; but it looked like there was a chip in the screen. The technician said she could tell it was getting charged but the screen was not illuminating. So I purchased a new screen and installed it today. I noticed the new screen has an identical chip in it as the one I replaced after I completed my task so this was not the answer either. If I did not have so much on this little phone that I really wanted to be able to get off of it, I would just get a new phone. It must have something to do with the plug port is the only thing I can think now. My computer keeps trying to recognize my phone, but there is a malfunction somewhere. Any help you can provide would be very welcome.

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Hey,

I actually don’t know how to fix this. But maybe if you try leaving it plugged in to a wall outlet for a while you might get some results. If the phone vibrates when you plug it in then clearly its not completely dead.

I’m sorry I couldn’t be of more help, I just figured that I should reach out.

I hope you get it sorted out,

-Nolan

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Thank you. I have left it charging overnight with no change.

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Bummer. I really hope somebody with more experience sees this because I don't know what to do.

:(

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If the phone has a new battery but still refuses to charge, the problem may be the USB cord itself. Try using a new USB cord and see if the problem persists.

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I have tried 3 different cords all with the same result, but thank you.

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If neither batteries nor USB cords for the phone are capable of working, changing the screen didn't help, your PC won't recognize it, and no technicians are capable of fixing it, your phone may be unusable.

Microsoft ended it's support/updates for Windows Phones on July 11, 2017 because of low sales. Support for Windows Mobile will end in December 2019. Your best bet may be to get an Android or an Apple smartphone.

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Julice Law wird auf ewig dankbar sein.
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