Already added your number, but you are unable to log in? I hope you find the solution.
 

Can't log in

 
After verifying and adding your phone number, do you get this error?
 

 
 
 

FIX

 
Steam's settings can be found in the top-left corner of the client.
 
 

 
 
Click on "Web Browser" then click on "Delete Web Browser Data."
 
 

 
 

 
 
Here we come to an end for Call of Duty®: Modern Warfare® II – Open Beta Linking Phone Not Working Fix hope you enjoy it. If you think we forget something to include or we should make an update to the post let us know via comment, and we will fix it asap! Thanks and have a great day!