I just got it 2 days ago. I have been charging it, but it doesn't appear to be charging. In my experiences, when you plug the charger in, some symbol pops up to let you know it's charging. When I charge my phone, the screen is just black. Then today, suddenly, my phone started making this weird noise, for about 5 minutes, even when the phone [appeared] to be off. i tried turning it on, and now it won't come on at all. This is a brand new LG kp500. What's wrong? Should I return it?

Does it have a micro USB charger/charging port? This was the universal charging adapter most manufacturers other than Apple moved to around 5 years ago. In my experience, the charging port to charger connection can become loose and prevent charging....especially if you use the tablet or phone during charging. The best method I have found to troubleshoot the issue is to try a charger that successfully charges another device and plug it into the tablet or phone. If your device still does not charge, and especially if the connection is loose, it is most likely that your charging port is damaged. Another possible issue would be the battery itself but the charger or charging port is the most likely culprit for your issue.

Turned off the tablet, unplugged the charger and kept the tablet off for about 30 minute to one hour, plugged in back the charger, then turn on the tablet. After that I you might see the tablet started charging. Good Luck.

Not sure if this is useful but double check that your charger connection to the Garmin is actually clean. I've had to clean the contacts for both my 405 and my 610 in order to make sure there was a solid electrical connection. Have you tried resetting it?

First Option:
mostly nokia chargers doesn't make problems...
just try the following..
connect ur mobile with a system (usb cable)...
found out whether it is charging or not...
if the same prblm appears then there is a prblm in ur cell phone or power jack(socket)...
if it charged with usb cable buy a new charger
Please change Phone Bettery and check the charging
IF Charging Problem not Solved So

Second Option:
Your Phone charging IC Fault So Please change charging IC
And charging Problem will Solved Quickly

First Option:
mostly nokia chargers doesn't make problems...
just try the following..
connect ur mobile with a system (usb cable)...
found out whether it is charging or not...
if the same prblm appears then there is a prblm in ur cell phone or power jack(socket)...
if it charged with usb cable buy a new charger
Please change Phone Bettery and check the charging
IF Charging Problem not Solved So

Second Option:
Your Phone charging IC Fault So Please change charging IC
And charging Problem will Solved Quickly

you need new battery you can get them cheap on ebay

First try to replace the battery, a drained or low voltage battery won't charge up.

For infos on how to fix the Sony Ericsson Xperia X1 Not charging:
http://mobilephonerepairguides.blogspot.com/2011/01/sony-ericsson-xperia-x1-not-charging.html

lighting symbol? Im assuming thats a iPhone or iPod Touch. this means your iPhone is dead keep it plugged in for a day or two if it still fails to turn on try plugging it in to charge somewhere else like a wall charger.

are you using the charger that came with the BlackBerry?  cause sometimes that can make a difference.
otherwise you might just need to get a new charger.
and usually the wall chargers work the best.
i had a BlackBerry Pearl 8100 and the same thing happened to mine.

Get a can of air and blow it into the 30-pin connector and headphone jack to clear the phone of dust and build-up. This should clear up the problem. I learned this from an Apple Store Genius Bar associate.