iphone problem please help

[camenglish]

im sorry if this is in the wrong place but i have an iphone 6 never been jailbroken or anything and i went to install ios 9 on the phone and it would download just not install so i tried this morning on itunes and it got half way done and said it could not be completed and now my phone can only be connected to itunes and when it is my only options are update or restore and update. ive done both and neither work and i cant use my phone. somebody please help im in a hurry so please excuse my grammar

 

[wongster]

maybe try putting it in dfu mode first

 

[eyoungren]

^^^This.

You mention you have an iPhone 6, but you don't say what capacity. I'm betting that you have a 16GB model and that you don't have much space left because of apps, music and photos.

You have to have enough space to download an update and enough space to install it. OTA (Over the Air) updates are larger than updates through iTunes. If you don't have enough space, things like your situation can happen.

Unfortunately, if you don't have a recent backup to restore from, a DFU upgrade/restore is going to wipe the phone.