Device: CTL Chromebox CBx3
Board: Lisbon
Firmware: google_Lisbon.14505.818.0
Status: Already in Developer Mode. The firmware-util.sh script correctly detects the board and offers the UEFI Full ROM option, but hardware write-protect (WP) is still “Enabled.” I tried disconnecting the RTC coin cell battery (ML1220, socketed/removable), but that did not disable WP. Where is the correct WP jumper/method for this board?