OS 3.0 , Hot ? Battery Issue ? Unable to receive call ? Reason ...

[008325]

Last week, i was upgrade my iPhone 2G to version 3.0

i found that my iphone get hot everytimes ,

only 4~5 hurs standby time after fully charge.

On the other hand, iPhone was unable to receive phone call sometimes ,

also SMS . even the Signal Strength was shown as Maximum !!

so what is the problem ?

i found two things to prove ,

First , while i am putting my phone on my laptop ,

some "Zi ... Zi .... Zi " sound was out from my earphone ( loudly ) !

P.S. 1 ( Earphone is connected to my laptop )

P.S. 2 ( Already turn off the Push Message and Wi-fi )

after i downgrade to 2.2.1 , no more sound come out ! .....

Second , while i am playing Need for Speed , it is very very lag ,

after i switch to airplane more , no more lag !!

....

All in All , i think that Apple was made a big mistake on the Firmware Network

Modules , it will cause iPhone send out the Signal ,

Non-Stop and Fully Power. so it is the reason why my iPhone is hot , Short

Standby time , Unable to receieve a call , etc

i hope Apple will fix it as soon as possible .

 

[Angels&Airwaves]

same exact problem here on my 2G. phone gets extremely hot and battery life dies in a few hours...laggy gaming unlike on 2.2.1.

 

[ebony]

same here, I'm charging my phone 2 or 3 times a day. I make maybe 2 5 minute calls a day,send 2 sms, and do 5 minutes web browsing.

I have wifi, location services and notifications on.

Even with the usage and setup above I should get more than 4 hours standby.

 

[JohnFa]

It's not just the 2G, same here on 3G. My battery drains very quickly and heats up alot when you charge it.

 

[hdean]

Same like my IPhone 2G using 3.0 version, no receiving calls and battery power is only 4 to 5 hours,
And i could not able to Downgrade to 2.2.1, some 1600 and 1601 error message is coming.

Please help me how to downgrade.