10-31-2022, 04:24 PM
Maskrom mode means that there is no valid boot medium inserted in your phone (eMMC is empty, no or empty microSD card inserted). Please don't try to flash your phone from the Rkdeveloptool, instead simply boot an installation from microSD card. The release images do contain U-Boot. Please have a look at https://wiki.pine64.org/wiki/PinePhone_Pro#Software for the instructions, community folks took a lot of time to write the instructions as clear as possible.
Additionally I would suggest you to flash Tow-Boot to the SPI, as explained in the wiki as well.
Additionally I would suggest you to flash Tow-Boot to the SPI, as explained in the wiki as well.