Help/Support HELP : iPhone stucked on APPPLE logo then dies after a while

[Vegito 288 iPhone 7 11.2.1]

Hello,

Guys i am using an iPhone 6 on ios 8.4 (jailbroken), recently phone started behaving very strange , at first it told me that i have low storage space, so i deleted an app which consumed memory of 1.5gb , after deleting it, i received a message from facebook messenger on lock screen, i took a screenshot and tried to send it to my friend, guess what happened? When i opened my camera roll, it showed me 0 Photos, again i went to check storage of iphone and it didn't update the free space which was remaining. So i switched off the phone and started it again by holding the power button until the apple logo appears and let go. But it was still stuck on apple logo and then it died. Again i long pressed the power button, the apple logo appeared and the same drama continued. I even did hold the volume up button after the apple logo appears,  nothing happened.

Please help, i have hell a lot of photos in the phone and i can't start the phone again. Restoring the phone is the last option.

Please help!

Your time and help would be highly appreciated!

[Rook 550.4k iPad Pro (2nd gen) 17.4 Donor]

Have you messed with system files? Is your device recognized when plugged in?

[Uziwoozi12 0 iPad Mini 4 11]

This happened to me to,there are many solutions to this,hold the home button and the turn off button for a bit and do this three times,or do the same,however with a charger plugged.Unfortunatley then if it does not work you will to go to a shop and get it fixed with all the memory gone which I had to do.

 

[Vegito 288 iPhone 7 11.2.1]

5 minutes ago, DiDA said:

Have you messed with system files? Is your device recognized when plugged in?

No but i used ccleaner and it cleaned all the cydia cracked tweak licenses that's all, after that it showed me a lot of errors that this and that tweak is not activated.

3 minutes ago, Uziwoozi12 said:

This happened to me to,there are many solutions to this,hold the home button and the turn off button for a bit and do this three times,or do the same,however with a charger plugged.Unfortunatley then if it does not work you will to go to a shop and get it fixed with all the memory gone which I had to do.

 

I'll try one more time. brb

[Uziwoozi12 0 iPad Mini 4 11]

See if Siri works