Strange message "done!"

[Guest pralka]

Hello and Hi everyone,

I have a strange problem - I have SPV C600 with Windows Mobile 5. Yesterday some message appeared on the screen:

"

Information

done!

"

It was on a white background, kind of SMS, but it appeared on screen without any interaction from my side.

The only option to click was OK and so I did.

Do you have any idea what can it be? I had my BT turned off, but some time ago I had the same message

and I had my BT on, so I thought someone was trying to hack my phone. So I switched BT off. Later I did a hard reset

of my phone and reinstalled all the software on it.

Is that some virus? What can I do?

Thanks in advance for any help!