HELP ! when am trying to boot ios 15 it show me this error how to fix?

[nhattycake]

 

[eminem_merlin28]

1.you need to boot to dfu(done)
2. then use pwndfu softwares such as checkm8, eclipsa, or ipwnder while the iphone is in dfu mode
3. try to boot device again(assuming the dfupwn is successfull)
refer to

for convinience

 

[nhattycake]

my pc is windows 11 it don't work on windows 11 your video is on window 10 maybe that matter???