Originally Posted by
jonister52 I already back up my phone. do I need to download again the ipsw file for 8.4 restore? since in have already file saved in my desktop.
Unless you think you have a corrupted download, your current .ipsw file should be sufficient. If you selected to erase all contents and settings from a jailbroken iPhone then it is going to take you several attempts to restore before you're finally successful. Sometimes, all it takes is a reboot of your iPhone, Wi-Fi router and your Cable/DSL modem. Just keep trying. It'll take eventually.