Suggestion for minor 3.x upgrade, 3.x.1 ish

DaQue

Well-known member
The restore blink mode if program button held for 15 seconds would be a great upgrade if it fits in the old boot loader chip the next time you build a new batch.
 
Would you believe I've been considering doing this for some time. The main challenge is making a small enough LED blink program with enough USB functionality to respond to Arduino's auto-reboot request. On Teensy 4.0 the restore program is permanently burned into the top 4K of the flash chip, so it doesn't need to consume space inside the bootloader chip.
 
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