Officially unlocked iPhone almost died after updating to 3.0 | Battery Problem

[tanujdude91]

Guys i really need your help . I updated my officially unlocked iphone(i bought it from australia and using it in india since the last few months) from 2.2.1 to 3.0 and my phone has died .
1) Phone turned extremely slow and it is visible .
2) I am not able to charge its battery . It doesn't crosses the red battery line . I kept the charging on for the whole night and still it didn't cross the red line . When i remove the charger it gets switched off .
I am posting a couple of screenshots of my phone .
I've tried restoring it from iTunes , it restored the settings and again took me to 3.0 .
Now ,
1) What should I do?
2) Is there a way of going back to 2.2? If yes , how? can you please explain?

Anyone else's iPhone 3G got slow after the update? What did you do then?

Help appreciated .

Thanks
Tanuj

[impulse462]

Hm if your phones battery isn't charging at all, it seems like there is something wrong with your phones battery itself and you might have to get that replaced. There is a way of going back to 2.2 by putting your phone in DFU mode (hold power and sleep button for 10 seconds then release sleep button and continue holding home button for 10 seconds while connEcted to iTunes. If your phone isn't holding any charge however, I doubt going to 2.2 will help.

[witq]

Try disabling push notifications and push email/contacts/calendar, then reboot the phone and try to charge it.

[tanujdude91]

The battery problem resolved automatically and now my iPhone's is not finding any wifi networks . It doesn't show any of them . What should i do now? i've already reset the factory settings but it didn't work .