Originally Posted by zapped

sAME problem here, i can't use the firmware that's been pwned with the new installer, I customized another firmware without cydia and without installer and it worked!

Try Cydia, YouTube fix and Installer and set root partition size to 800 MB

i have same problem with winpwn, i'd tried different combinations of custom firmware but nothing changed i am sure about DFU because driver is recognised as DFU.
i found some error logs at iphone updater logs folder does anybody has any idea about this?

entering create_filesystem_partitions
creating 1048576 byte wipe buffer
786432000 bytes written in 524 seconds (1465 KiB/s)
executing /sbin/newfs_hfs
Initialized /dev/rdisk0s1 as a 750 MB HFS Plus volume
creating 1048576 byte wipe buffer
executing /sbin/newfs_hfs
Initialized /dev/rdisk0s2 as a 6994 MB HFS Plus volume
entering restore_images
executing /usr/sbin/asr
Waiting for connection attempt from server
Validating target...done
Validating source...(null)
/usr/sbin/asr did not exit: status = 0xa

==== end of device restore output ====