Sony Ericsson C905

About week ago. I bought used one. Owner was sure nothing was wrong with this phone.
Problem is:
Wifi not working,
GPS not working,
USB cable connectivity not working.
Bluetooth is OK,
Phone is OK.
In this situation I do not have option to install updates. My version R1EA033.
Only Bluetooth is functional, that help's me to synchronize with outlook.
Each time Sony PC Companion inform me about updates R1FA035, but I'm not be able to run that.
Disconnect Bluetooth and connect USB-cable, and nothing.
I'm not Hi Tech person, only as much as read on the internet.
What option do I have ?
Any chase to download that updates to a folder, transferred to card and execute them manually to install.
Any one have experiences with that situation?
Thank's, Peet.

To many problems with that phone and i suggest you to take it to some repair shop.You can try to clean usb connector on the phone with needle(golden contacts) and then try to connect phone,also try to replace usb cable and usb port on your computer.If same take the phone to some private repair shop.

Thank you for your respond.
USB computer port is OK.
I was testing with 3 computers, operating system win XP home, XP pro and Win 7 pro.
I will fallow you suggest, thanks.
I was hopping upgrade the software helps me to fix the problem!
I believe previous owner damage, some how, the phone.
Never been honest with me, and that is my cost to ply with that issue.
I believe, option to upgrade the phone, is the best in my situation, only regarding the cost?
For my point of view, I need:
Good quality camera,
Bluetooth,
WiFi,
GPS,
good quality phone connectivity.
Any one have any suggesting, replay please.
Peet.

Download and install this driver: ggsetup-2.2.0.11.exe
Clean usb connector on the phone with needle,reinsert battery and try to connect.
Try few times but always reinsert battery before connecting.

Edit: Try with A2 uploader or Omnius identify button,if it will be detected you can flash it.Phone must be OFF before connecting,reinsert battery and don't forget to recharge it before flashing if phone will be detected.For Omnius you have to buy 1 day license but identify is free.

I'm going to follow those suggesting, result will be posted.
Thank you for respond.
Peet.

My C905.
No effect to restore functionality.
Probably previous owner damage hardware, and I could't find way to fix myself.
Send to service(repair) is not optional, regardless to cost compere with phone value.
I give up and might be good for part's.
Thank you, every one.
Peet.