iPhone 2G, 3.0 OS and battery
Just a quick note to document a change in behavior between OS 2.2.1 and the new 3.0. After updating to 3.0 I immediately noticed a slowdown in the UI: it manifested mainly as slight pauses every second in scrolling between home screens, settings, safari, everything. To top that up, I noticed the device being slightly warmer than usual, and finally realizing today morning that phone was draining the battery in an alarming rate.
I have always been manually changing the APN of my supported provider to an invalid value, since I have no official data plan. In 2.2.1 this allowed me to enable Push for Fetching New Data, thus being able to have immediate mailbox sync as soon as a usable WiFi router was in range.
In 3.0 this has changed. I have a suspicion that push mail notification now is somehow linked to the generic push notification system, which I somewhere read is always going through the GSM radio, unless there is no coverage. Thus, the OS was always trying to establish the GPRS connection, draining the battery and slowing down everything.
Solution was to set Fetch New Data to Off. Now enjoying 3.0 OS at breakneck speeds :-)
Hope it helps someone of the few remaining iPhone 2G users that haven't flocked to 3GS.
It's all because of "PUSH"
I had all those problems, and more!
Couldn't receive calls, or messages. Battery ran dry really quick. iPhone over heating.
Edrill is right! all went away as soon as I turned "PUSH" off :cool: