Can you factory unlocked Iphone 4 with already jailbroken?

Can you factory unlocked Iphone 4 with already jailbroken?

Yes, it is possible to Factory Unlock iPhone 4 that already jailbroken.

You can, but it is not recommended as it can interfere with the last part of the factory unlock process. It is recommended you restore your Apple firmware and baseband before factory unlock. Even though the factory unlock is permanent on Apple's side, your iPhone may not pick it up through iTunes.

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