Hi guys, i have been reading this thread for weeks ever since my phone exhibited the problem of no reception in sleep mode. i have tried various fixes mentioned here.
The "airplane mode on, reboot, airplane mode off, reboot" trick: Failed
Imapidle: Worked, but sapped batt life
Insomnia: Worked, but sapped batt life
Some people mentioned uninstalling Navizon and LocateMe solved their problems. Since I did not have those installed, I figured I would install them, and uninstall to see the effects.
Installing and uninstalling LocateMe failed to solve the problem. Similarly, installing and uninstalling Navizon failed too. HOWEVER....
I installed Navizon and noticed that the problem was gone! Been working for the past 24 hours, full reception in sleep mode while Navizon is installed. No lagging and acquiring of signal when I wake my phone up to the locked screen page.
So I would think this problem is definitely software related, and not hardware related as some people have said. If you are one of those who have never installed Navizon (or LocateMe for the matter) and have the "no-reception-in-sleep-mode" problem, try installing Navizon and see if it works. Who knows, maybe the problem is due to Navizon toggling certain parameters in the file, and someone can work a fix for this problem based on that. Oh, and I pwned my phone BEFORE installing Navizon, so maybe that matters too.
Just thought I would add my experience in this and contribute something....
BTW, hi to you guys.