my partners and me (4 of us) received our 3Gs last saturday ( 19 sept). Immediately that night, me and my partner ( 2 0f us) upgraded to OS3.1. Have been playing with it during the long raya holidays, so quite a lot of times connected to the computer for Apps downloading. So can't quite tell the stamina of the battery.

Yesterday, 24 sept, in less than 6 days time and it was before noon time, my partner's (upgraded to 3.1) iPhone DIED on him!! can't switch on and just black out right after sending a SMS and he remembered it still has 80% of battery life.

Brought it back to Maxis after lunch. The technician asked the unit to be left with them and they will look at it. in less than 1 hour, got call from Maxis to my partner to return all things that comes with the iPhone (box inclusive) back to them. They replace a brand new unit to him immediately......

After reading all the issues posted in apple's forum, i think 3.1 is the culprit for demise of my partner's phone. and i did notice the extraordinary fast draining of battery of my iphone with 3.1OS.

Now, anyone of you know how can i restore or downgrade my OS back to 3.0? i tried the itunes restore and it didn't work as the OS firmware still maintain 3.1 eventhough the rest of the data can be cleaned.

I saw some webs saying u can restore the phone the new phone setting. Any advice on this?

some extreme difference of experience with OS3.1. I m testing it tonite to see if it will have the same effect as your. I have restore it 3 times, the last one being a manual restore technic i found on the net and restore it as new phone in hope that the OS firmware would be downgraded to it factory firmware.... but it didn't work that way apparently...

wish me luck...

Off everything except 3G (push mail, notification, wifi) Battery 100% at 1130pm, went to sleep and left it idle. At 655am, battery level at 98%.

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Added on September 26, 2009, 7:51 amafter playing with the iPhone for about 10 mins with safari and WIFI on.... battery is at 92% at 7:10am.... now back to idle and will see how the battery perform...

This post has been edited by cvchua: Sep 26 2009, 11:59 AM

ya... such a nice phone yet poor power management makes it dull phone.... (pasal have to off most of the things)...