"No SIM" Problem
For the past couple days, my 3GS has been randomly presenting the "No SIM" error message. The only fix that I have found for it, is to hard restart it, then it will work for a while, until the next time I get the error message.
I have removed the SIM card and tray, cleaned it with canned air, and reinstalled it multiple times, and it has not had any effect. I have also restored my phone, yet it also hasn't helped.
While restarting my phone isn't a huge deal, I never know how long my phone has been rendered useless each time it happens. I could notice it within 5 minutes, or it could take me 2 hours, and if someone needed to get in contact with me in that time, it can lead to a huge problem with my business.
I have had this phone since September of 2009, with the same SIM card.
Is anyone else having this problem, or has someone found a solution to it?