The following applies to all DAKboard Wall Display 27 and V2 Plus models made from Mid-2022 and newer that have an access hole on the back of the display, covered by a circular sticker.
1. Disconnect power and place the Wall Display face down on soft material:
2. Carefully remove the circular sticker. Place it somewhere safe temporarily if you do not have a replacement. This will reveal the underside of the Raspberry Pi computer inside of the Wall Display, and the SD card in the slot.:
3. The SD card is held in place by a spring mechanism and will release if pulled straight towards the top of the monitor and out the back. We find that using your thumb and pinky finger is the easiest, or use a set of needle nose pliers. Take extreme care to not drop the SD card. See the SD Card Removal Video file attached to this article to see it removed. Some Model V2 Plus displays may have the Orange Pi 3LTS. You can distinguish this model from the standard because the SD card needs to be pressed in to release it.
4. Installation of the SD card is largely the reverse, taking extreme care to not drop the SD card into the Wall Display. See the SD Card Install Video file attached to this article to see it installed.
5. Once installed, you can replace the black sticker and power on the Wall Display.