Adding to what Larry wrote and since unfounded fears of "bricking" seem to come up regularly...etc
Does also this stand true for the SAA2N? From what I understand that
unit uses a different hardware architecture than the predecessors.
On 10/25/20, Christian Zietz <czietz@...> wrote:
Adding to what Larry wrote and since unfounded fears of "bricking" seem to
come up regularly: Bridging the BOOT and VDD pins, conveniently located next
to each other on the PCB, and powering up the device will force the NanoVNA
into boot mode where you can flash a new firmware via USB using the usual
utilities. This boot mode is hardwired in the STM32 CPU meaning that you
cannot accidentally erase or disable it. Hence, you don't have to worry
about bricking your NanoVNA during a firmware upgrade.
Regards
Christian
