4.0.2 guzzling my battery. Your's too?

No change here.

BTW, the only thing that 4.0.2 did is fix a security hole.

Hmmm...

I think it's a different situation for every user? When I first received my phone, battery life was a bit sketchy (ie. Battery life drains quickly even when the phone is off) when it was running on 4.0.1.

I updated to 4.0.2 and my battery life became normal (ie. I can have my phone on sleep for many hours and not see a drop in battery life %).

Have you tried restoring as new? I read from other threads that restoring the phone as new helped with their battery issues.

Perhaps an appointment with the Genius Bar would help sort this out.

Message was edited by: ringokeitai

As far as standby drain goes:

4.0.1, I lost about 9% battery leaving the phone for 7 hours overnight with everything enabled (push, email fetch 30min, wifi, mobile data, 3G etc).

4.0.2, I lost 8% last night, exactly the same config.

So they're exactly the same for me.

When I update my iPhone 3G to 4.0.2 - it fail to update an error 1002 appear. Now my working condition is no longer working. It just stuck on connect to iTunes screen.

To make it work, the warranty is over. I really dunno where to refer.

I would suggest book a genius reservation if you feel your battery is draining away at an unacceptable level (or peace of mind). I did for my first handset and have another booked for tomorrow with the same drainage issues - something that other iP4 owners in my life are not experiencing.

If it's under warranty, you're good to go 🙂

I updated this morning and have actually noticed my battery life has increased. I know that this update was supposed to just be a security update, but i honestly have noticed a change in my battery. before on 4.0.1 the battery would drain in standby yet now with 4.0.2 it can sit in standby and not go down even 1 percent. Apart from that, that's the only thing i have noticed that's different with 4.0.2

Hi Sam,

Although this is a user forum, we can only hope that Apple engineers are taking on board our annotations - after all we (I use the term 'we' loosely as others are fine with their units) are the ones in limbo! It's just a shame that it takes the jailbreak scenario for them to actually do something to the firmware.

With 4.1 will having a 'Christmas' load of fixes, who's to know when it will be released especially as it's into Beta 3. I've been monitoring (not babying though 🙂 ) my second phone up until I thought, right, it's not my problem that this is happening so let the company that produced it sort it out. Maybe I'l get a replacement or maybe they'll say it's a common cause but for peace of mind, I'd rather know as to speculate.

Life's too short and it's just a phone. Although saying that – and before people start waving their arms about after that comment - it's a great piece of kit 🙂

media360degree wrote:
Though speaking to a couple of Apple officials in London...

Did you question them about the recent iPhone issues to get their perspective? I think that the Apple after care programme is superb although, that could all change tomorrow with the outcome of my reservation ha ha!