Can I upgrade to iOS 5.0.1 from 4.3.3

hi,

first time here, sorry if in wrong section.

have jailbroken 3gs 4.3.3, updated 5.1 using redsn0w via custom ipsw, baseband reserved.

problem not unlocked , tethered jailbreak..

tried same ios 5.0.1 not , phone refused boot anymore.

luckily had 4.3.3 shsh blobs saved downgraded that.

queried tinyumbrella , found out 5.0.1 shsh available model.

can upgrade 5.0.1 without touching baseband?

 

if have shsh including apticket should able create custom no_bb ipsw shsh/apticket stiched it.

download stock 5.01
redsn0w in extra's make custom ipsw, no_bb....

again in redsn0w extra's go shsh
select stich
select no_bb ipsw
create second custom ipsw stiched shsh/apticket
use alt-restore (mac) or shift-restore (win) in itunes

 

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