Question about LG Phenom Express

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Need new LG AC Power Supply Model H-P 220

The phenom express' power cord will no longer charge my battery, as I believe the power cord has a short in the wiring at the end of the power cord. Does anyone know where I can purchase a new power cord for this handheld computer?

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I had a similr problem It turned out that the power supply cord was not the problem, it was the main battery. Luckily, in 2000, I bought 2 extra main batteries. I took out the old battery and put in one the 2 new unused ones and my machine is working and charging perfectly now.

Posted on Feb 16, 2009

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My Kindle Fire will not start


If you last charged it with the computer USB port, try charging with the supplied AC adapter instead. If you last charged with the computer USB port, try charging with the AC adapter this time. This will help isolate a bad AC adapter / power cord or USB cable / USB port.

It is important to note that if you are charging your Kindle via USB port on a computer, when many computer enters "sleep mode" the USB power is shut off at this time too. Charging is effectively halted - even though still connected. You should only expect to charge while the computer is active or when using the AC adapter.

You can also purchase an aftermarket DC charger. These are small plugs that are inserted into your auto's port or cigar lighter. They provide 1 or 2 USB connectors to plug in a USB cable. These devices are suitable to supply / charge just about any devices that uses a computer's USB port to power / charge a device. They cost anywhere from $5 and up and look something like this:
5_22_2012_12_50_36_pm.jpg
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Good Luck,

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1 Answer

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Two things.

HTC phones will not charge from the USB port unless you have ActiveSync on an XP or Mobile Device Manager on a Vista PC loaded.

Second, if the phone has been stored for a very long time, 1 year if initially charged, 1/2 year if not, the the battery self discharges to a point the USB port PC Sync software doesn't know the phone is connected. You must jump start a charge on the battery by either and HTC AC charger, a generic AC/USB charger will not work, or you can apply a +5 VDC voltage to the power terminal, marked + and - on the battery case, on the two outside terminals I believe. This 5VDC must be current limited for safety. The Red and Black lead inside a standard USB cable will supply current limited +5 volts at 100MA. Chop off a standard USB cable, their cheap and break out expose the Red and Black leads. While connected to the PC USB port, hold the Red lead to the + battery terminal and the Black to the (-), or other outside terminal, of about 30 seconds to a minute.

Now when you plug the phone to the PC with a good USB, the Amber light on the phone to indicate Charging, may not come on for a while, 5 minutes or so, but it will eventually. If it does not, jump the battery again for a longer period of time.

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The traditional steps for resetting charging problems are:
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You have done #2, but I do not know if you have done #1. Try it, then try to recharge again. If that fails then you probably need a new battery. I have found them on eBay before.

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leave the backup battery in the PDA and bring it back to life with this how to ;)

http://youtube.com/watch?v=l0TT5CnbwBQ

if that doesn't help you may need to give the battery a little kick-charge for the PDA to recognize it again. the PDA "thinks" there's not battery if the battery voltage is below 2Volt.
to "kick-charge" the battery just get a AC adaptor with at least 5V and 1A (a.k.a. 1000mA) with 2 wires and connect them to the battery pins (with "+" and "-" correct!)

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connect the wires of the AC adaptor correctly and let it "kick-charge" for about 5minutes (but NEVER let it charge any longer if the battery is getting hot!!!!)

after that, the PDA should recognize the battery again because the voltage is more than 3Volt again.

but don't (!) try to power it up after kick-charging!
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How to correct iPAQ 5450, 5455, 5550, 5555 battery charging problems / dead unit syndrome.

The iPAQ 54xx or 55xx will not power on if the batteries charge is lower than 3.2 Volts, if your battery charge falls below the 3.2 volts level your unit will not turn on, you need to plug the iPAQ into a cradle or AC charge adaptor. Note the charging light on the iPAQ will not flash at all (normally flashes orange) until the battery charge has reached a minimum charge level of 3.2 volts. You then need to perform a normal reset, then the unit should switch on normally.

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1 Answer

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