iPhone Cant downgrade from 9.1 to 9.0.2

STcreature

macrumors newbie
Original poster
Oct 29, 2015
6
0
So basically i was trying to downgrade to ios 9.0.2 on an iphone 6s plus but when i shift right click "check for updates" or "Restore" it says "firmware not compatible" but im 100% sure this is the right firmware
since there is only one firmware for the iphone 6s plus please help
 

Hal~9000

macrumors 68020
Sep 13, 2014
2,012
1,715
Still not working
Only other things to really suggest are basic stuff that you'd probably laugh at :p
- Did you update iTunes to the latest version?
- Did you restart computer?
- Are you sure it's a 6s plus?

Wish I had a better answer for ya. 9.0.2 is still being signed by Apple so it's definitely not that. I just restored to 9.0.2 yesterday on my 6s using my MacBook Air and didn't have the 'firmware not compatible" issue you are having.
 

STcreature

macrumors newbie
Original poster
Oct 29, 2015
6
0
Only other things to really suggest are basic stuff that you'd probably laugh at :p
- Did you update iTunes to the latest version?
- Did you restart computer?
- Are you sure it's a 6s plus?

Wish I had a better answer for ya. 9.0.2 is still being signed by Apple so it's definitely not that. I just restored to 9.0.2 yesterday on my 6s using my MacBook Air and didn't have the 'firmware not compatible" issue you are having.
Yea i tried everything i even tried to do it in dfu mode but still didnt work Thanks for the help anyway :D
 

aldrinjtauro

macrumors regular
Jul 3, 2014
202
107
Birmingham, AL
iTunes won't restore a phone down, even if you use Option+Click and an IPSW you've downloaded. However, if you put the device into recovery or DFU, it'll probably let you use the IPSW.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
47,527
16,029
iTunes won't restore a phone down, even if you use Option+Click and an IPSW you've downloaded. However, if you put the device into recovery or DFU, it'll probably let you use the IPSW.
Even DFU won't let you install a non-signed iOS version.