toryander
Member
When I go to upgrade my Radiomaster er4 rx I get the message "Not enough space." Logically I take this to mean their isn't enough memory for the new firmware. Is there a way to get around this (delete old firmware (how?)) or is it stuck at 3.3.1 forever? I reverted back to 3.3.1 on my tx so I can fly, but I wonder about the future.