Cant recover or update my iPhone 4s iOS 8.2
My iPhone 4s iOS 8.2 didnt find anymore network or sim-card couple days ago. Tested with other sim-card and same problem. Then I tried update my phone on wi-fi to newest iOS 8.4 but that didnt work. I have tried recover and update my phone with iTunes but not working. Now when I start my phone, it shows up "link iphone to itunes" and when I try update or recover my phone, its start recover my phone but processbar hangs to 60% and iTunes says "Unknown error 1". Tried recover my phone several times but same problem everytime.
iPhone 4S, iOS 8.2