Would itunes save the files on the iphone when you restore it?

Iphone 3g problem ( no wifi signal )?

• my iphone is either a 3gs or 3g not sure :) its been jailbroken + unlocked but it wont show any wifi signals , any helo apreciated its on 4.2.1 and someone told me if i use itunes to restore my iphone it should hopefuly fix my wifi problem , but ill have to get it jailbroken and unlocked again , unless someone here can be nice enoth to help me jailbreak it myself or if there is any other tips i can try to fix wifi , i click wifi on the circle spins then nothing no signals found , im only my laptop next to it and it picks up about 6 signals and if i sync *save) my iphone to itunes then reset phone , let it fix my wifi then restor phone , if it lets u with the jailbreak+unlock software allready on as its been backed up , hopefuly it will allow me to do this or does it just save files not operating software? any help apreciated or any tip,trick anything to get my wifi working pls if u get my iphone working ill give u 50 points :P

• Answer:

  This could be the technical issue... Report it to the service to get things fixed... Good luck!