Nokia 6681 When ever I top up on my vodafone prepaid card, the phone or something on the phone automatically starts sending messages such as: "Live 3D driver with polyphonic virtual speakers","**** images collection with nice viewer","MS-DOS emulator for SymbianOS. Nokia Series 60 only. Try it","Matrix has you. Remove matrix!" to other contacts from my address book so if I have credit, it uses it all up. Once finished, it still keeps sending but since no credit I keep receiving messages from Vodafone "Sys Alert-Transaction failed-insufficient funds-please recharge. You have not been charged for this message". Now I have stopped crediting my account and therefore cannot make contact with anyone. Is this a virus? Can you please, please tell me a solution to fix this problem.

Nokia 6681 backgriund lcd light & keypad light is totaly off plz give me a solution

First let me inform you that this is a virus attack.  it is activated on your phone when you receive a mysterious bluetooth message and open to see what it is.  Initially, it seems as if nothing is wrong with your phone but all of a sudden, the phone starts sending messages.

You you need do is to first upgrade the firmware via at Nokia's website  http://www.nokia.co.uk/A4226014, install it on your PC and then unto your phone via USB cable.  If you have done it before, you need to do it again.  I would advice that you only back up everything else except your phone settings before you install.

Next you need to download and install an antivirus software for your phone.  I believe F-Secure is good.  You can download and install free from http://europe.nokia.com/A4144384 for 1 month.

If your phone is working  normally, I would advice that you disable your bluetooth and never leave it on when you are in a public place as this is this can easily expose you to virus attack.

Try to install anti virus to youre phone tested many times

HI I am not sure your question but I can tell that your phone is ok but the prepaid service need to be reset. This case, only Vodafone can help you since the pre-paid phone has been locked by them. this is probably virus cause but I am not 100% sure since your phone is still locked to vodafone as a pre-paid unit. This set needs to have vodafone service and they may have their own software to reset the service for you. I hope this will help.