Question about T-Mobile MDA

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Mda my phone does not power up it dosnt swach on it dosnt charg it is just of

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Re: mda

Throw the phone battery into a zip lock bag and put it in the freezer for about 12 hours...then put it back in the phone...should work just fine! same thing happened to me

Posted on Sep 13, 2007

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T-Mobile MDA Phone wont now charge or turn on

Mar 06, 2010 | T-Mobile MDA

1 Answer

I cant get my mda to turn on i hold down the power button for a while but it wont turn on i charged it for 3 days and it still wont work what should i do?

Mda Vario's don't charge when turned off, heres what you do.
cut wire off a usb lead the small end strip the red and black wires, put the red wire onto the posative connection where the battery is it tells you what side is posative and negative on the battery, use black with negative and red with posative making sure that no wires touch the other metal strips in the phone, replace battery plug usb into computer and start up the mda and wait for it to boot. once turned on leave to charge as it will charge through the wires connected to the battery, after 10 to 15 minutes plug in the actuall charger and try to remove usb wires without taking battery out. if that is not possable it is ok as the battery should have enough power to start up once it starts leave to charge and always keep some charge in the phone.

Jul 07, 2009 | T-Mobile MDA

1 Answer

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

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.

Apr 07, 2009 | T-Mobile MDA

2 Answers

No power

Make sure you have an original OEM charger for the MDA. Many of the knock off chargers don't provide the right amperage for the device. What happens is that since the phone is completely dead, it can't regulate how many amps the battery should get during the charge and an incorrect charge current won't charge the battery. I'm guessing that someone sold you a Motorola RAZR charger or another knockoff made for the RAZR. This might charge your phone when the battery is working, but not when it's DEAD. Also you won't have luck plugging it into a computer USB cable because, again, the phone can't tell the computer what charge to send and most computers only produce <0.5 amps in the USB port.

Get a charger that states it is an OEM (original eqipment manufacturer) device or one that is specifically designed for the MDA (or Cingular 8125). eBay is full of them.

Bad charger (probably won't work for a dead battery)

Good Charger (correct amperage and designated for the MDA)

Jul 08, 2008 | T-Mobile MDA

2 Answers

I have an T-Mobile MDA. I haven't used it for over 6 months, went to charge it last night. plugged in the charger and the blue power light came on, went to menu screen. Left the MDA charging upon returning...

Your first bet is to remove the battery and hold down the power button for 10 seconds, then replace the battery and try to turn it on.

Sorry I'm not more familiar with the model of phone you're talking about but this has worked for my old PDA's when they won't power-cycle correctly.

Jun 27, 2008 | T-Mobile PDAs

1 Answer

T mobile mda

mine also did it and finally nothing on even I thought battery died I bought a new one.

Jun 14, 2008 | T-Mobile MDA

1 Answer

Tmobile mda

Try charging it with the AC adapter it came with.

If that doesn't work try charging it via your computer using a USB cord

Jan 03, 2008 | T-Mobile MDA

2 Answers

T mobile mda

If the unit is not new have you checked the status of the battery and is it a manufacturer's battery - some units are quite sensitive to that.
The problem may also be with the charger

Dec 22, 2007 | T-Mobile MDA

1 Answer

I need the data on my dead MDA!!!

Try to trickle charge it by hooking it up to the USB and then to your computer. Let it charge up a bit then try powering it on or charging it the regular way to charge it even faster.

Trickle charging
Some Palm devices have the ability to "trickle charge" from a USB port on a PC or Mac. This means that it receives a very small amount of charging from the USB port, even if it is not connected to its AC charger. If your device is capable of this function, the charging time will be significantly longer for a trickle charge (depending on the power rating of the PC USB port). However, the device may not charge at all on an unpowered USB hub (or for example off off a keyboard).

Sep 23, 2007 | T-Mobile MDA

7 Answers

My MDA won't turn on even when its on the charger.


Apr 11, 2007 | T-Mobile MDA

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