Just to let you know… it happened something similar to me. I managed to get to the AP mode by powering on in without the SD card. Once the GRR patern is activated, i put in the SD card and it changes to the RGG and activates the AP mode. I know its not nice to connect the SD card when the IOTA is on, and everytime it resets, for any reason, it gos to the red dull led again… so it’s not a final solution… just a step.