Updating and Factory Unlocking iPhone4

[trojan927]

Hi there folks;

I am a bit new to Apple Devices, and I've just gotten a new iPhone4 (uses gevey sim).

Now, the question is how do I get it updated and factory unlocked without loosing any of my apps. or data?

The specs are as follow:

Version: 5.0.1 (9A405)
Carrier: Carrier Lab 11.0
Model: MC318LL
Serial Number: 85042EVDA4S
IMEI: 012426009889026
ICCID: 8923301003275480221
Modem Firmware: 02.10.04

Thanks in advance for your help!