Software Update Failed Error for iOS 15.7 on iPhone 8

All applied. Same result.

update is 331MB, yet I have 9GB free.

still fails and also asks me about download with cellular network while in wifi (tested multiple wifi with/without cell data)

Honestly, no clue then. I had the error, cleared 6 GB and it worked for me. I did also try to delete the “update download” in storage multiple times but it would never do anything. Idk

Maybe Apple fix this problem. Seems everyone devices having problems

I have 15 GB free and still won’t install. The error I get suggests a corrupt download, although some have discussed a terms & conditions message. C’mon Apple, don’t be like Microsoft!

There technically not what used to be

Thank you DeadRedPanda, I managed to upgrade my XS to 15.7, after having 10GB space free.

I have the same phone, and I’m having the exact same problem as you are.

I am having the same issue, I tried, reseting the wifi, restarting the computer, removing storage and with no luck!

Yeah I’m currently having that same issue with my XR.. it won’t let me update and when I try to do iOS 16 it bugs out and makes it seem like I didn’t try to update it a second ago

I’ve been trying to install 15.7 all day but I kept getting an error message. I installed the newest update 16.0 and my phone updated

Same issue. iPhone 8 with 10g free

Was able to solve it as well: Cleaning up space (about 11 GB free) helped. Seems like the process of checking needed space before installation is broken, or something.

I am unable to install 15.7 like many others. I have the iPhone 11. Tried restarting and have plenty of space but to no avail.

iOS 16 having same problem even I do a factory reset it doesn’t fix it

Apple always rushing into update too early. Supposed be till falls