iPhone 4s, 8.1, jailbroken (BUT no tweaks could cause this as my phone started up fine earlier today) TL;DR: Did a Deep Clean with PhoneClean 7 recently, got white background with logo in center after that, now have this. Figure it must be related. I don't want to restore, giving up my jailbreak! Recently, I did a Deep Clean with PhoneClean 7. Since then, I got a white background with my custom boot logo (themed by WinterBoard) (like on a 5s) everytime I respring. Once again, Smartwatch+ (a Pebble Smartwatch app) wasn't displaying the weather on my SmartStatus watchapp. I was trying to fix this by shutting don both devices, then starting them both up at the same time. Booting up, no white background, standard Apple logo (this is the standard 4s boot screen). Can't boot into non-substrate mode. This isn't a boot loop either. It just won't start up. The only way I can turn it off is DFU mode. I haven't tried connecting to iTunes or any other computer as I'm at school. Everything worked just fine before this. Upscale is uninstalled, too. I did have that but then decided to uninstall it. Also, no SSH installed. Just AFC. Can someone please help?