It's an unpatched console which was sysCFWed.The owner says it works but kinda buggy so I decided to updating it first to perform a clean JB then setup emunand on it so he could go play online his legit games. But the problem is that even by disabling auto RCM, removing sd, and booting straight to the OFW, the serial number stays on XAW00000000000, and I can't update the OFW through original system update on the menu. It errors out with the S0025 code