Guys, please help!
I used the "Erase all Content and Settings" option to format my iPhone. However, I forgot to plug in the cable and my iPhone ran out of battery halfway through formatting. Now I try to plug in the cable to charge and continue, but the apple logo would come out for a few seconds before shutting down again! What has happened? Can anyone help? Search the web but couldn't find any similar cases.

Thanks.

iPhone Generation : 3G
Unlocked? Yes. Bought in NZ. Model: mb500x
Current Firmware : OS 3.1.2 (7D11)
Current network: Digi
iTunes Version : 9.0.2 (25)
PC/MAC : Mac
Jailbreaking software : n/a
Problem Encountered :
I read in the forums that 3.1.2 doesn't allow tethering on non-legit Apple partners. But according to this website, http://www.volkspost.info/ipcc_fw3/ ,tethering should be able to be done with a custom ipcc file.

Steps Taken So Far :
I followed the steps and create a custom ipcc file. Install it but still no Tethering option. I suspect I could put in the wrong name under "Carrier Name". Initially, I put in "Carrier 5.0" (it's really SHOWED that on my iPhone!). Then I changed it to "DiGi". But still no success.

Screenshot of Problem(if applicable) :

Other Information/Remarks :

Tried that but still no tethering option. Did you?