Unable to Restore. Have multiple problems.

i have researched this and havent found any luck yet.

iPhone 5s ios 8.1.2

When i try to restore normally , it gets stuck on waiting for iPhone

When i restore via DFU, i get error 21.

When i restore in recovery mode it gets stuck preparing for restore.

My hosts file has nothing apple related in it. i reset it a few days ago.

When i run diagnostics, it says "No iPhone ipod or ipad found."

gs.apple.com brings me to a page that says "This page is just a place holder" it has three links, one to apple, one to apache web server and one to tech probs.

For weeks now i have been unable to restore. It works on my brothers computer, but that is really a hassle and i want to get my music from this computer.

Any help guys?

blueroom said:

Try doing a DFU restore on a different computer.

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i can restore on another computer but that isnt the problem. i want to be able to sync my music and use my computer.

Cmd-Z said:

If you can restore from a different computer, what prevents you from syncing from the computer you normally use? You might get a warning that any content from the other computer will be erased, but that shouldn't matter and won't require you to restore again.

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Thats the problem. i restore and then when i plug it into my computer it says it is corrupt and wants me to restore.