Thursday, February 4, 2010

Upgrading to iPhone firmware 3.1.3

Update: it requires no mobileconfig from,

It just works!

Settings thru Settings/General/Cellular network below

Yes, I did it!

And YES! Tethering is available on Celcom, but not via IPCC. You need to create a mobileconfig file, and can be done via your iPhone's Safari here (

lastly, it is good if you do a restore instead of update. Mine was jailbroken because I need 2 features which is not available on 3.1.2, i.e. tether via unofficial carrier, i.e. Celcom, and I love running Stitcher Radio at the background so I can still run other apps while listening to live news.

The steps:

1. click restore when your PC/Mac is connected to the Internet, and your iPhone is connected to your PC/Mac, and your iTunes running;

2. iTunes will ask you to upgrade to 3.1.3, just say yes or continue
3. After about 5 minutes, your iPhone is done, and restarted
4. open Safari, goto
5. click on Tethering >
6. scroll to the end, and click on custom mobile config
7. Give a name to your mobileconfig, in my case: Celcom
8. APN: celcom3g, leave blank for username and password

9. for MMS configuration, APN: celcom3g
usernama and password both blank
MMSC Proxy:
leave the rest blank

10. click download, click install button on the mobile config screen, once, done, restart your iPhone.

11. check whether you done it right:

a. goto Settings/General/Network, tethering should be there
b. launch Messages app, you should have a small camera on the left of your message entry field.

Simple, right?

1 comment:

  1. 白頭,我做了,不過做不到
    我等你來做這個SIMPLE JOB,OK?