Phone wont power on

Hello,

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First charge your mobile for atleast 1 hour,and switch it ON you to remove the battery when mobile is turned ON and wait for few seconds re insert the battery then check

If problem still exsists connect your blackberry to computer check wheather its recognising the device If "yes" you need to take a back up of your hands set and re-install the operating system of your Blackberry. To perform a clean installation of the BlackBerry Device Software using Blackberry Desktop Manager 4.5 to 5.0, perform the following steps:- 1) Open BlackBerry Desktop Manager. 2) Click Help. 3) Select About Desktop Manager. 4) Click the Device Software tab. 5) Verify that the BlackBerry Device Software displayed is the latest version currently available from the wireless service provider.

you need to reflash you OS on to the phone...

you can connect the phone using the usb cable to the laptop/pc/mac that you are using then open your desktop manager (blackberry).....open apploader then click on software update and upload the OS back to the phone this should work...it has for every phone i fix that just have a red led blinking...also if the DM does not see your PIN, remove the battery from the phone then connect it again you should see BB PIN:UNKNOWN just click next and you should be good to go.

Remove the battery for 30 seconds, reseat the sim card, reinsert battery, and then try to power up

Try removing the battery from the phone if it does not power on after placing battery in the phone. press the red phone button or the green phone button. Removing battery and making sure your all cards are seated properly in the phone should do the trick

you should take the phone to a mobile service tech and have them either replace the speaker or reflash the OS on the phone.

you need to take the blackberry and have the trackball replaced or the old one cleaned.

All you have to do if u have this problem, is turn phone off, remove battery. This will reset your phone!!! And it will fix this problem.

Remove the back of the phone. Pop out the battery. let it sit for about 10 minutes. Replace the Battery & the back cover of the phone. If the phone starts up, then let it start and immediately plug in the charger and let it charge for 1/2 hour before you touch it again.
If the phone does not start up then do not try to start it just immediately plug in the charger and let it charge for 1/2 hour before you touch it again.

It works for my Blackberry Curve 8310...

It should be taken into AT&T and find out what your options are. If you have insurance for your Blackberry, you should be able to get it replaced after the deductible.