Phone will not power on

Charge it. Once the battery is depleted, if you plug the phone into a charger, the phone will for some time refuse to show any life even while plugged into a charger. If you have some sort of fast charger, it may come to life almost immediately. Otherwise, you are in for a bit of a wait. How long? -An eternity if you need to make an immediate call or receive on. Otherwise, my "guess" is that it will at least work briefly within a half hour.

Make sure your charger IS plugged into the wall to a working wall socket.

If you accidentally completely powered it down, simply power it up. Seems obvious but you have to eliminate the possibility.

There is always a possibility that the battery is not holding a charge. Ask yourself how old is the battery.

My phone died and now won't power on or charge. Here's how to fix it. Did your mobile phones battery drain all the way to zero and now your device is completely dead, not powering on or not even letting you charge it? This article will go through some tips on how you might be able to revive your dead phone.
If your cell phone is a smartphone then this is a reasonably common issue. It used to be a general practice to run older batteries to zero battery life before charging them back up to full again but try not to do that on the new smart phones, they use lithium-ion batteries which discharging 100% is a major concern and isn't good for the health of the battery.

If your battery has drained to zero and now the phone won't respond then try this

Pull the battery Start out by pulling the battery out of the phone for a few minutes then put the battery back into the phone, put the phone all back together and then plug it into your ORIGINAL charger that came with the phone. Make sure that you use the original charger that came with the phone. If you don't have the original charger then make sure that your charger is a manufacturer approved charger. If your battery is built into the phone and you cannot remove the battery from your smartphone then try to perform a simulated battery pull. Many phones have a method to restart the device, usually by holding down specific buttons or keys on the device. Much like the Motorola Atrix HD simulated battery pull or the Sony Experia simulated battery pull where you hold the volume down key and power key simultaneously while the phone is powered off.
Check the outlet Sometimes we can be too close to an issue and can overlook something as simple as a wall outlet attached to a light switch that's turned off. If the light switch is designed for turning off and on a light and the switch is off then there is no power coming from the outlet and obviously your device isn't going to charge.
Try a different outlet This can go hand in hand with the above suggestion. Try a different outlet to make sure it's not a power socket issue.
Try using a computer or car charger Using a computer or car charger instead of a wall charger can sometimes put a quick charge on your battery and get it to respond as well. Keep charging it If you have tried these methods and your phone isn't responsive due to its battery being drained 100% then it can be difficult to get your phone to charge again. Try charging it for at LEAST a couple hours on an outlet you know to be working, even all night if possible. Lithium ion batteries can take a while to get to charge again if drained all the way. So try charging it for a while, You might need a new battery If you try these tips and suggestions or have tried all these things already and there is still no response, and your phone is completely dead and will not recognize a charger then you might need to try another battery.
Try a different charger If you have tried a different battery then make sure you try your original charger first, as mentioned above. If there is no response then it might not be your battery but your charger that has malfunctioned and might need replacing. If you have any spare chargers try those to see if you can get a charge out of your phone. Replace the device If you have tried a different battery and a different charger and your phone is still little more than a paper weight then you should start reviewing your phone replacement

a cheep fix is the charger I am showing you from Advance auto it will bolt into stock location and bolt to battery post you will need to make a jumper wire to send batt. voltage to joy stick controller well worth doing the modification to save big $$$$.

hold the power button down for 10-15 seconds to force a power off. When turning back on, hold the power button down until you either feel it vibrate or something comes up on the screen.

I know how desparate this feels - try powering it off completely and remove / replace the battery - make sure the charger is connected securely and try again - you should be able to use the phone whilst it is on charge. If the charging symbol does not appear when in charge mode then the charger itself may be faulty. Try hooking it up to a USB cable from your PC - it should still charge but not as quickly.

Remove the battery, Sim card and SD card if so equipped. Replace everything making sure that all are properly installed. Plug in the charger and letting the phone charge for at least 15-20 minutes. With the charger still connected try the power button and the phone should come back to life. Let the battery continue to charge for 2-3 hours.

Might be stuck in hibernation. Pull the battery and ac power for about 1 hour. Replace and try to boot. If fails, pull the battery and try to boot just off ac power.

Hi,
it could be either battery or charger, If the charger isn't supplying enough power it will fool the phone..
some 3rd party batteries and cheapo chargers can cause all sorts of problems like this.
best way to test is charge your phone by usb, it takes longer but will give you some idea of weather its the battery or charger.
Make sure that the box at the bottom of the power management window (dont charge by usb) is set to off. Also for best results remove any other usb devices from the computer this will leave more power for the phone.

Best of luck

dunno. try to have it on the charger, and at the same time try to push and hold the power button. try it a couple times. my v180 from motorola did that and it seemed to work.

A temporary fix to the problem is to put the battery in the freezer for a minute and then put it back in the phone and it will turn on just fine! I had an LGVX8700 and it just randomly started happening one day and my fiance told me to try doing that so i did and sure enough it worked. I had to go to verizon at one point to get a new phone because the one i had got damaged and the tech there used the same battery in my phone for the new one and he thought i was crazy when i told him to put the battery in the freezer but he was in for a surprise when he did what i told him and my phone turned on. It's annoying because you have to do that everytime your phone shuts off but i always made sure i plugged it into the charger before it went completely dead.