are you stocked at 20% and your waiting effort is in vain? or went further to 30%-40%-50%-60% and yet failed to jailbreak you device? there is a very simple solution.
for -1101 error:
1. you need to uninstall your iTunes 12.1 and go to C:\Users\[yourname]\Music\iTunes and change the extension on your iTunes Library.itl file to iTunes Library.bak
2. Download iTunes 12.0 here for WIN 32bit, here for Win 64bit and here for OSX.
3.Once downloaded itunes download TaiG tool 2.0 part 1 and part 2 (for mac users you need to download pacifist first)
4. You can now start installing the earlier version of iTunes you downloaded and proceed with your jailbreak.
for -1102 error:
1.Turn on AirPlane Mode.
2.Make sure Touch ID & Passcode is turned off Settings > Touch ID & Passcode.
for -1103 error:
1. Redownload your tool from the link above.
2. restart jailbreak with the basic preparations
for -1104 error:
1. this is probably caused by USB error so try it on another USB port or change a computer where you do your jailbreak.
for -1105 error:
1. disable antivirus
2. restart your computer and iDevice
3. try restoring your device
4. try running the tool as an Administrator
