I have an iphone. I used the latest winpwn,pawned the phone, loaded the custom firmware from itunes. it loads fine and all apps are there. but if i turn off the iphone it never boots back, gets stuck at the boot logo. i even tried a custom firmware with default apple logos and just had apps in it.still the same issue. any idea why is this happening, everything else seems to work until i have to reboot the iphone.???