Try holding down the home and power button for atleast 15 seconds and see if that works at all.


If that doesn't work then are you sure that you are trying to put your device into DFU mode correctly? There are some ways that don't work...

Try this video to see if this works:

Hope this helps...

Cydia Substrate:

As of version 0.9.3997, you can now disable Substrate entirely by holding down Volume UP as the device boots.

This feature allows you to bypass horribly broken extensions (ones that prevent the device from starting up at all) that you may have installed so you can open Cydia and uninstall them.

...

Restart your phone and then hold up on the volume butten

Mine was stuck before I went to bed like 2 years ago so I kept it on the charger and kept it at the apple logo. in the morning it had turned on and I deleted a bunch of tweaks. You can try that if nothing else works from what other people are saying, you probably downloaded a bad tweak or two that didn't go together

Thanks to ALL of you that have suggested ideas and have helped, especially FirbeOps, you will all get +Rep'd thanks guys!

-Meoww wrote Thanks to ALL of you that have suggested ideas and have helped, especially FirbeOptics, you will all get +Rep'd thanks guys!

No problem. Happy to help! I didn't know this get around with broken tweaks before until my applications on my iPhone 5c started to randomly disappear so I had to reinstall it via Cydia and found it noted in the details.