Cannot activate device (iOS 7)

You have two options.

1. Make sure your friend entered your UUID properly, sounds like there may have been a mistake made when entering it in.

2. Put your phone into DFU mode and then you'll be able to restore to the latest public build.

To put your phone into DFU, your phone must be plugged into the computer, with the phone turned on hold home and sleep/wake for 10 seconds, after 10 seconds stop holding sleep/wake but continue to hold home for another 7 seconds or so then release the home button as well.

If done correctly your phone screen will be completely blank and iTunes will give you a message about a phone in recovery mode.

 

How long has your phone been in this condition? Someone mentioned last night it took almost two hours between the UDID being registered and the phone activating.

 

Oh you're welcome.

I unfortunately had to bounce back and forth between iOS6 and iOS7 last night myself.

 

same issue

i have been on my companies list for a few weeks and i had ios7 on my 4s. Last night i tried to go to the undated beta and i get the activation error. Any help would be great because i put it in DFU last night and went back to 6 just so i could use my phone at work. Came home today tired again same issue

 

I would double check that list.

 

did and it all matches up
and how is it last week i put 7 on no issue and this week it has issues.

 

Same thing happened to me but trying your method was very tedious and hit and miss. Missed everytime for me, sadly. Here is a better method.

http://www.imore.com/iphone-101-put-iphone-recovery-mode

With the phone off, hold the home key and plug in the USB cable (iPhone4s and lower) and iTunes will detect a phone in safe mode.

 

did he copy and paste?

 

Having this issue today.
I added my udid to two accounts.
Went back and double checked it was correct.
But still no go.

I'll update in the morning if it worked. If not I'll try restoring to ios6.