No i do't have an at&t sim

[AC Question]

No i do't have att sim i am using this phone in pakistan. I want to know that if i remove my sim and then try to update will this process work or not??

 

[anon(632115)]

I think I responded to an earlier post of yours. No, without a valid AT&T sim there is no way to update. The updated firmware files are not available anywhere nor does Smart Switch work. AT&T devices are firmly locked down