Troubleshooting Jailbroken 4.1 iPhone 3G (phone issue)

[bellyfrog]

Hey,

I have this iPhone 3G which is acting up after 4.1 jailbreak/unlock (pwnagetool so baseband is still 5.13.04). When I call people often I cannot hear them and they cannot hear me. Has anyone experienced this issue and if so know of what might be causing it? As far as I know the phone is in good physical condition.

Thanks.

[iYeow]

Do a restore to see if that fixes this issue.