When you’re trying to update, restore or jailbreak your iDevice (iPhone, iPad, iPod Touch), you might run into troubles, which end your update/restore, and leave your iDevice in “Connect To iTunes” state (This is called DFU mode (Device Firmware Upgrade)).
![iPhone in DFU mode, asking to connect to iTunes](http://www.icantinternet.org/wp-content/iphonejailbreak4-4.png)
iTunes itself will also provide you with an errormessage, containing any of these numbers:
2, 4, 5, 6, 9, 13, 14, -18, 19, 20, 21, 23, 28, 29, -48, -50, 1002, 1011, 1013, 1014, 1015, 1601, 1602, 1603, 1604, 1608, 1609, 1611, 1612, 1639, 2009, 3004, 3013, 3014, 3015, 9807, -9808, 9844, 4026xxxxx
![img_0941](https://beheydt.be/wp-content/uploads/2010/11/IMG_0941-300x300.jpg)
A few first things to check and to do before calling Apple in a panic mode:
– Is all your software up to date? Especially your iTunes version needs to be the most recent one!
– Is your iDevice connected directly to your computer? No USB hubs inbetween? Not connected to your keyboard or anything?
– Do you have other USB devices connected? Try disconnecting them.
– Try rebooting your computer.
I’ve had this problem plenty times (almost every update/jailbreak), and was always able to get it back in place using these simple tricks. So, good luck to you too!