"#1 rule: don't restore/update to stock IPSW. Use custom IPSW" ?

[amazad]

I saw this on Musclenerd's twitter and I was wondering if you guys could explain to me what that actually means.

I have an iPhone 4 that I bought while he was 4.0.2 and upgraded through TinyUmbrella to 4.1 and preserved my 01.59.00 baseband.

Does he mean that should I ever need a restore I should never do it through the normal IPSW only the one PwnageTool will give me ? I don't understand that.
Could anyone tell me the what would be the consequences if I do restore to a stock IPSW ?
I'm talking of corse after I'll "SHAtter" it.

Thanks in advance

[nebo1ss]

If u save your shsh for 4.1 you will always be able to restore using TU and retain older BB. Custom IPSW will just be another option for u.

[Cer0]

He is just saying that using that tool you can perserve your baseband and also carry over the pwned exploit.

The main point is to perserve the baseband for unlocks.

[amazad]

So in other words if I restore from 4.1 to 4.1 using the stock IPSW I'll upgrade my baseband is that what you're saying ? and that way I'll lose my unlock ?

[z3r01]

Rule #2 NEVER post links to custom firmware here