Cannot Custom Restore 3GS to 5.0 or higher!

i have @ least 20 iphone 3gs can no longer custom restore 5.0 or 5.0.1 have cooked custom firmware through snowbreeze , had no problems until now. bec itunes no longer signing firmware anymore? also, dont have ssh saved on of them bec restored before received them. (restored before 5.1 released) know of way around this? have 20 useless iphones unless can jailbreak unlock them... put them pwned dfu mode through both redsn0w , ireb , keep getting errors -1, 9, 28, 29, 2001, 2009, or "request not eligible build"

 

sn0wbreeze has method custom restore 5.0 or 5.0.1, requires @ least partial blobs saved each device. looks out of luck now.

 

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