iphone 3gs jailbreak

good morning ladies & gents,
have read these posts , other information,can please clarify have bought 3gs 32gb on ebay, stating unlocked find not.
running version 5.01(9a405)
firmware 05.16.05

if can read correctly phone cannot unlocked.
thankfull quick answer need start dispute if case

in advance

 

correct - without irreversibly updating baseband 6.15.00 (which advised against), phone cannot unlocked.

 

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