OpenWrt for Meraki MR20, MR70, Go GR10, and Go GR60

We previously looked at breaking secure boot on the Meraki Z3 and Go GX20. The secure boot bypass can be used to flash an unlocked U-Boot build onto the device, which is chain-loaded from the Meraki signed U-Boot build. Having an unlocked U-Boot opens the possibility to permanently install an open-source firmware like OpenWrt on […]