iPhone 3Gs Usage Issue

[Creature]

Hi Guys,

I would just like to know if any of you are having the same issue as me.

After some recharges the battery drains very very quickly (like 1 and a half days - flat!!!) I have done some investigation and found that the Usage and Standby times are exactly the same.

I have found the solution for this issue:

1. Enable 3G, Cellular Data and Data Roaming - Leave like this for 5 minutes
2. After 5 minutes switch off ONLY 3G and enable your wifi (no need do connect to any wi-fi networks - Again leave like this for 5 minutes.
3. After 5 minutes, switch wi-fi off and enable 3G again (Leave for another 5 minutes)
4. After this repeat step 2 again (Leave for another 5 minutes)
5. After 5 minutes switch off wi-fi, Cellular Data and Data Roaming

Your usage and standby timer should now not display the same time anymore. And the battery life will be better than double.

 

[Mbuzi]

Or you can upgrade to 4.3.1, my battery life improved after the update

 

[mk_aldatym]

Mbuzi is right. My friend's bat was fail until he upgraded it. Is your phone jailbroken? you could get this cydia app called SBSEttings werer you can switch of wifi easily and close all the apps running in the background too.