Question about T-Mobile MDA

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My T-Mobile MDA won't turn on or take a charge, battery was low

I've tried holding down the power button for 5 seconds, it still doesn't power up. I've tried doing a soft reset, doesn't power up. I've tried pressing the soft reset for 5 seconds, doesn't work. It turned on earlier when I hit the power button, but it turned it's self right back off. The battery was really low. I've tried to charge it, but it still doesn't power up, and it's doesn't show an indicator light that it's being charged...

Posted by monkeyyy on

  • Tamtastic Apr 14, 2009

    I have same problem with my MDA. I love that phone. I have had it every since it came out. I would love to get it repaired to at least be able to get my info out of it and text messages. Someone Please help. Somethings it will come and and get a full charge just to die in a matter of 5 mins as if it have never been charged. I even bought new batteries, that didn't keep it working. I noticed that the entry on the MDA where the charger goes seems to need to be moved around to show some kind on indicator color. The color usually is red. Sometimes it may go to yellow briefly and maybe green. Right now it is dead and I can't get it to come on. HELP PLEASE!

  • Anonymous Apr 18, 2009

    I have the same exact problem and I am dying. Please somebody help.

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1 Answer

Daren Egan

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    An expert who has achieved level 1.

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I had the same problem, but got the idea to "jump start" the battery from Googling the problem. At night, I had turned off my MDA to charge the battery and then in the morning, couldn't revive it. I removed the battery from my MDA, and determined which battery terminal was positive (far end of one side) and negative (far end of the other side) by using a multi-meter. BTW: Battery was still @ 3.5V (okay…battery was still alive, if just barely). Then, I found a 5V DC charger (5W Max output = ~1A) from my bluetooth headset. I used one wire (CAT5E) and connected it to the negative side of the adapter (outer sleeve - again, verified by multi-meter) and another wire to connect to the positive tip of the adapter. I had to strip about 1/2-inch of the insulation off of the wire on the DC adapter side, and about 1/8-inch of the wire on the battery side. Plugged in the 5V DC charger and then I touched the negative wire to the negative battery terminal and held it there, while I touched the positive wire to the positive battery terminal for about 30-45 seconds. Put the battery back in the MDA, started it up, and now it's charging on the regular MDA AC Charger that came with the phone. Problem solved.

I’m happy to assist further over the phone at https://www.6ya.com/expert/daren_80e8def41854e57e

Posted on Apr 30, 2009

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Take the battery out. Then put it back in. I couldn't find anything that would work but doing a hard reset. Once I did that the phone worked again. I lost everything but my phone works again.

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If a tri coloured screen appears you will be able to reflash it, if it doesnt appear, then your battery is dead and it wont charge no matter how much you try, the MDA(or wizard) wont charge the battery, unless windows is running, i would recommend you buy a new battery, they are cheap enough

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If the battery is very low but you can get the multicoloured bootscreen, i would not advise flashing it as you have no idea of how much charge is in the battery, if the battery fails during flashing you wont have a phone anymore

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i got a new battery theat had some charge in it and it worked great! alot of the time thats all you need it a new battery

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this is a sw boot up screen. this is what the screen will look like with no sw on the device, so you guessed it....the download was unsuccessful and corrupted the firmware.....if you tried to reinstall the sw again, and it does not work, you might need a new phone....contact t-mobile to do that.....OR, you can try to do a master reset by pressing the sw keys.

to do that, turn off the phone, and press and hold the soft keys (buttons located beneath the touch screen that have the lines on them on top of the green call button and the red end call button).....while holding these down, press the power button for 3 seconds and release the power button.....all this time you are holding those soft keys down....the phone SHOULD turn on and go to a black screen with white writing.....at this time you can relase the two buttons......press the green button and reset. if this does not work.....my friend, you need another one......good luck!

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