My blackberry curve 8310 started acting up and music started only comming out of one ear then now i cant make calls because the volume jumps up and down when making a call

Do you need to unlock your Blackberry Curve 8310 from network lock?Blackberry has 10 unlocking tries..So you have 4 remaining unlocking tries.You can get the unlock code from the site
Classicunlocking.com for Blackberry Curve 8310 and unlock it easily using the unlocking instructions below...

Blackberry Curve 8310 Unlocking Instructions

Warning : Do not enter any wrong unlock codes on your Blackberry Curve 8310 mobile phones. If you enter over a certain amount of wrong unlock codes on your Blackberry Curve 8310 mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch on your Blackberry Curve 8310 with any Sim card and Turn off all Wireless connections.
2 - Go to Settings.
3 - Go to Options.
4 - Select Advanced Options.
5 - Select SIM Card.
6 - Type MEPD using your Blackberry Curve 8310 keyboard (NOTE: You will not see any text appear on the screen while typing MEPD),
7 - Type MEP then hold 'ALT" key and type number 2.(NOTE: You will not see any text appear on the screen while typing MEP2),
8 - You will then be presented with a prompt "Enter Network MEP Code". Type in the Unlock Code and press in the track wheel / jog dial to confirm,
9 - Your Blackberry Curve 8310 will now be unlocked.

Try to unlock your blackberry network using blackberry curve 8310 unlock code, see if the problem is still happened after your blackberry network unlocked. If the problem still same, reflash your blackberry phone or you can do cable unlock in nearest local mobile phone repair shop in your country. It will force to reset your blackberry configuration to default.

Reset your blackberry phone, if that problem still occured try to unlock your blackberry network using blackberry curve 8310 unlock code. You can get blackberry unlock code from your network provider or you can buy from third party sites if you don't want to wait for a couple of weeks.

you can unlock your Blackberry eaisly with Blackberry Imei Unlock code. first call your service provider ask your Blackberry Mep Code. But it takes time to give your Mep Code. or other option is go online. there are thousand of sites available to provide Blackberry curve 8310 Unlock Code. Buy your unlock code from third party.

According to this link, the 8310 does not have video capability.

http://na.blackberry.com/eng/devices/blackberrycurve8300/curve_specifications.jsp

the volume button may be stuck in a weird position on the inside. you may want to take it apart and clean the inside and reassemble. if you cant then a local repair shop may be able to do it for you

Either bad speaker or audio amplifier. Warranty.

http://www.gsmliberty.net/shop/blackberry-curve-8310-unlocked-p-1533.html try this sir...... [email protected]

unlock your Blackberry eaisly with Blackberry Imei Unlock code. first call your service provider ask your Blackberry Mep Code. But it takes time to give your Mep Code. or other option is go online. there are thousand of sites available to provide Blackberry curve 8310 Unlock Code. Buy your unlock code from third party.

you can Unlock your Blackberry 8310 Curve with imei unlock code. it is very simple and eaisiat way to unlock your Blackberry. get your Blackberry 8310 Curve Imei Unlock Code . and use any gsm sim card.
i hope this will help you .