Today I woke up expecting many text that I usually get over night, instead I looked at my phone and had none, I noticed my phone was in airplane mode.
I went and took it out of airplane mode, and about 10-20 text came through, I locked my phone via the power button, and unlocked, and airplane mode
was back on.
Everytime I lock my phone, airplane mode turns back on I have my screen on never turn off so I recieve my calls which are HIGHLY important for work.
Running stock everything, gingerbread 2.3.3
I apologize that you are having this problem. After researching the issue, I have not really found any information on it. This is not a known issue with the software, and none of my personal friends with the Shift have this problem after the software update. I think you should try to back up your data and reset your phone to factory. This is found under home/menu/settings/sd and phone storage/factory data reset and that should fix the issue. Let me know if you continue to have this issue after the reset. I hope this helps.