The Easiest Ways to Disable Data on your iPhone 3G / 3GS

This is for those poor souls who got served a 200SGD bill from Singtel because they didn’t read my article on the dangers of getting an iPhone without a data plan or read it way too late.

To disable data on your iPhone if you don’t have a data plan, the easiest way is to install bossprefs via Cydia and turn off edge and 3G, if you have a jailbroken iPhone.

For those of you purists who rock original unmodified iPhone software, the best way is to mess up the APN settings.

Under Settings>General>Network>Cellular Data Network>Advanced, change the settings from this;

APN: e-ideas
Username:
Password:

to something like this;

APN: xxxxxx
Username:yyyyyyyy
Password: zzzzzzzzz

Remember, it is not enough if you just turn off the 3G in the settings. All it does when you turn off the 3G is to revert to Edge/GRPS in order to save battery power.

Edit: Ever since iPhone 3.0 came out, many iPhone users, particularly Starhub ones, have complaint that changing the APN settings no longer stop the 3G/GRPS data from working. The only way is to call up Starhub, and tell them that you want to cancel your GPRS service with immediate effect.


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MacRyu is the Mac Blog by Singaporeans and for Singaporeans. It was started in April 2007 as a side project of the then President of the Official Mac User Group of NUS, Ryu, and grew to become possibly one of the most popular Apple-related sites based in Singapore. MacRyu hopes to provide you with more Mac-related info, thoughts and stuff, from the Singaporean perspective.

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