500 mb really are not enough.... This 3days I ady used up to 80mb from my old iPhone usage reading....

sorry to ask,im kinda of new in iphone,
This i3gs 32gb kind of is my 1st iphone...
Izzit neccary to jailbreak the iphone?
I found out that i really can do little thing only without jailbreak...
Summore i cant even configure a mp3 to my iphone ringtone....

Me kinda understand abit on jailbreak,but still on blur side...
what do u mean no more waranty?
Which mean if sumthing wrong with my iphone,i cant go back to maxis/apple to warranty it?

Ok,thx you guys....Me understood...
I will try jailbreak the phone later....
But still need to ask few thing b4 i shut my mouth and start reading...

1.How can i put the mp3 become my ringtone?
2.Can the iphone on9 with using my pc internet(becoz i din buy the wireless moderm yet)?

ok will go read - thanks!

But turning it off wont solve my problem. I will want it when I dont have WIFI right? For now yes it will help until they activate my free data. Thats what the free 500MB is for BUT even when i get the 500MB allowance, it will still be bleeding off by itself without me using it.

set push notification to Manual mode
How to: Settings -> Mail,Conctacts, Calenders -> Fetch New Data ->  Push (Off) -> Fetch (Manually) -> then go Advanced -> your mail account -> Select Schedule (Manual)
that shoud do the trick...
NOTE: Settings "Enable 3G" to off will still allow EGDE data to stream through. but this option will save battery.

after ur free 500MB is activated, this is wat u should see: <Refer attachment>
they will not record ur kb usage, just when u start to surf. the rm0.01 will NOT be charged to ur credit. so just ignore it.
the only we to monitor ur data usage? link wat Tink said, check ur iphone data usage. remmeber to reset counter everymonth.