Follow instruction carefully when inputting serial number. Do not use Published Serial Numbers as each box has its own and if serial number you input now does not match serial number on SECURITY CHIP your box may not work on future releases. All boxes will work on this release no matter what serial you use but you will not have another chance to change it to correct one later. Do not use serial from another box as in later files it will check to see that you match the correct serial for your unit from SECURITY CHIP on board. Remember just because you can input any serial this time do not think it will work on next release. It will check what you put this time on next release not this release. So follow instructions.