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May 25, 2009
about 5 years ago
I had a similar problem when I bricked my module when updating the firmware.
I found this solution though:
----from post #5------------
It is not so easy but there is a procedure to regain factory reset with IO toggling GPIO9
I did it on my RN-171-EK using the 2 buttons but I had to retry many times.
You hold down the GPIO9 while pushing reset and then release reset.
After waiting a little more than One second, you press (toggle GPIO9) and you do this several times (more than 5) .
Repeat this 5 to 10 times and you should eventually see some message coming back at original speed (9600).
I has a similar issue when playing with FW updates. I tried to go down from v4.41 to V4.00 and I blocked the module. It would not respond to any command .
After several trials it eventually spitted out again some message at 9600 bauds
about 6 years ago
I wonder if the mounting tab is connected to the source or the drain? i.e. - is it hot?
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