Since I've updated to iOS 6.1.2, I've been having poor signal and any calls that establish will get disconnect every few minute. Most of the time I get 2 or less bar and sometimes "no service".
I have a iPhone 4S firmaware 6.1.2 factory unlocked.
iPhone 4S, iOS 5.0.1
I am having the same issue. Since the update to 6.1.2 Sunday (I believe), at work where I have always had an awesome 3G signal, 3 out of 5 days I have had the o signal. I would understand if it was all days, maybe the carrier adjusted their strength, but the first day was Monday, the second/third was Thursday and Friday. I will try restoring to iOS 6 this weekend since I have not seen any great improvement with 6.1.1, and a degrade in signal after 6.1.2.
im having the same issue, after update to 6.1.2. and the result is poor 3G Signal coverage at all. i have another iphone with 6.0.1, no problem with 3G signal at the same place. both phone is iphone5 FU.
Could you restore to iOS 6? How do you do this?
I would like to downgrade to 6.1.1 or 6.1 too.
iOS 6.1.2 poor signal and drop calls!!!
