Apple ipod

Will the 3G iPhone OS 3.1.3 Firmware 12/05/2001 jailbroken model MB?

I have an iPhone 3G. I jailbroken with blackra1n. Something went wrong with my phone and I had to upgrade the operating system. I have not had in my shit hash Cydia. The firmware 12.05.2001. I know they say they can leak if we have a Boot ROM age. How can I check to see what bootrom the phone? My iPhone starts with the model # MB. I know they say they can not escape if you start with MC. My iPhone jailbreak blackra1n now? Any help would be greatly appreciated.

I do not know the answer to your question myself. Please try your website if they have been at the top Apple firmaware each launch, there was so far

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