S8+ unbranded BTU product code, so most likely unlocked too.
Looks like G955FXXU1AQK7 is no longer available via Smartswitch so the firmware you have will probably be getting pushed out now to all open firmware S8+ devices.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.