My 3230 phone gone white screen or other mix colors, I can't see any thing but 2 functions calling and receiving work fine.

* I think your mobile as some problem with it.
* Your mobile display as problem.
* You will face this problem because if your mobile as fell down.
* You need to change your display.
* For this you need to contact your nearest service center.
* They will take few minutes to do so.
* After that check it.
* I think you have strip problem.If it is yes means it can be fixed.
* For any reason you need to contact the service center.

Thanks for your question.