See What happens when code is uploaded using the bootloader? What happens when code is uploaded using the bootloader? - the flashing is by design.
Probably the reason is to confirm that the bootloader has started.
See What happens when code is uploaded using the bootloader? - the flashing is by design.
Probably the reason is to confirm that the bootloader has started.
See What happens when code is uploaded using the bootloader? - the flashing is by design.
Probably the reason is to confirm that the bootloader has started.
See What happens when code is uploaded using the bootloader? - the flashing is by design.
Probably the reason is to confirm that the bootloader has started.