I was updating my iphone4 to IOS7 and while it was downloading .. it said verifying update ,then it restarted but went on recovery mode.I tried Recboot to exit recovery mode but it just went out of it and then in again.
I connected it to itunes , restored it and installed IOS 6.1.3 but when it finished it went on recovery mode again.
I went to a specialized store but the guy said he must Change its Software ... and this will cost alot ... I don't know why indeed.
Anyone knows another solution or where i can download software? , Any version of IOS