Will there be problems after flashing Iphone 4s?

Question

iPhone

Hey! The essence of the problem is this, wi-fi falls off when working on the Internet (it is cut off and then cut off again, sometimes it is connected, but there is no Internet. The bodies freeze when the waffle is turned off), the blue tooth does not find the device. I did not try only a complete flashing, is it possible that after the firmware there will be some problems (except for a problem with the network)? Tel judging by the number - Rostest, any sim cards work. Is it worth trying at all?

Answer 1

It looks like a problem with the antennas, bring it to the service.

Answer 2

First, try doing a hard reset! What OS do you currently have installed?