[solved] Unable to communicate with RN2483 after upgrade

End Devices (Nodes) Hardware
1

hi,
i upgraded my RN2483 on the Things Uno to Firmware version 1.0.4 using the PassThrough Sketch (HowTo: Update RN2483 Firmware on ‘The Things Node’) - and then via the Microchip Lora tool.
it seems the update worked - at least the “flash ok” was the last cleartext i could see on the terminal output.

however, now i’m unable to communicate with the RN2483. No matter what baud rate it set on the loraSerial or debugSerial (tried 9600, 57600 and 115200 in all combinations).

i also tried to do the boot load recover (with the microchip tool) - and to flash it again - the error i get on the console:

Trying to Connect: /dev/tty.usbmodem1431
Connection Successful

Tool List Refereshed
No Server in List
In Baud Rate Handler
In Data Bits Handler
In Stop Bits Handler
In Parity Handler
/dev/tty.usbmodem1431 Bootloader: v1.02
FF
08
1D
3C
FF
BF
85
FF
00
00
0F
E0
0F
40
READ_VER
55000000000000000000READ_VER_DONE
READ_VER
55000000000000000000READ_VER_DONE
READ_VER
55000000000000000000READ_VER_DONE
READ_VER
55000000000000000000READ_VER_DONE
READ_VER
55000000000000000000READ_VER_DONE
Trying to Disconnect: /dev/tty.usbmodem1431
Disconnection Successful
No FED Selected by the user
In Bootloader Failure

the only characters that come back after rebooting and trying to send sth (57600 8-N-1). are two íí (hex 92).
any idea how to resurrect my uno?

2

Hi @jodok, I tried to flash the firmware version 1.0.4 of theRN2483 on my things node. It resulted in excatly the same error as you encountered.

Did you manage to solve it ?

3

I had the same and downgraded to 1.0.3 a while back :sweat: on the things uno

4

Thanks @BoRRoZ,
I also downgraded to 1.0.3 but at first it didn’t work. It’s a bit confusing because it worked only after a few tries. The LoRa Development Utility software does not seem to be very reliable.

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