心中的日月

Today Papa ed teach me how to backup OS 4.0 as OS 4.1 is coming. Once they launch 4.1 i'm unable to backup 4.0.

What should i do??

1. go to http://thefirmwareumbrella.blogspot.com/ and Download TinyUmbrella.

2. Plug in your iphone to itunes as normal, then run 'tinyumbrealla' program, it should write Iphone 3.1.3.

3. Under the SAVE SHSH, choose ADVANCE OPTIONS, the choose Iphone 3GS 4.0 then choose SAVE SHSH

4. Then once done, you will see "written SHSH successful saved: [click here to open]"

5. Click the [click here to open] and it will show u the SHSH file. Keep this file.