HTC SHIFT WONT CHARGE (Blue light)

hi there can somebody help me. i got the Shift of my friend. she said it worked and she used it a few days ago. she gave me the wrong charger. i plugged it in and the Bluetooth light came on briefly and went off again. no life to the shift... now i have the right charger after she finally found it... the same thing occurs. just the Bluetooth led flashes once and goes off. after that the shift remains lifeless.

Any ideas? :confused: :(

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