iPhone 3GS Battery Life

[Montana]

My iPhone had a battery life of approx 3 days. Since upgrading to the newest firmware 4.3.5 I barely get one day battery life out of it. Do you also experience the same problem or do I miss something. I already restored the firmware for a second time but there is no improvement. The 3G and WiFi is switched off in Settings, so that is not the problem.

Is it at all possible to restore to a older firmware version?

 

[politallycorrect]

one of the tricks that helped me was to reset all settings to default. There's a master switch in the settings to reset the phone to factory defaults.

 

[Montana]

one of the tricks that helped me was to reset all settings to default. There's a master switch in the settings to reset the phone to factory defaults.

Thank you. I'll try the reset function.

 

[Montana]

one of the tricks that helped me was to reset all settings to default. There's a master switch in the settings to reset the phone to factory defaults.

Thanks, that did the trick. Battery life to normal now.