Lost wifi after firmware update

Official Hardware UNO Family UNO R4 WiFi
1

Hi,
I did a firmware update and now I get this message in the serial monitor. Not a clue to what it is I can upload a simple project with my assoated thing files set to R4 and enter wifi details but it never shows online.
is it bricked?

Thanks for any advice
David

ArduinoIoTCloudTCP::begin could not read device id.
***** Arduino IoT Cloud - 2.5.0 *****
Device ID: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
MQTT Broker: iot.arduino.cc:0
WiFi.status(): 0
Current WiFi Firmware: 0.5.2

Firmware name: "/tmp/precompile-arduino-renesas_uno3288890821/sketches/DC418DEDB6BD760AA642B5F0C3E93193/empty_sketch.ino", compiled on: Mar 10 2025
Fault on interrupt or bare metal(no OS) environment
===== Thread stack information =====
addr: 20007ec8 data: 20000960
addr: 20007ecc data: 000052f7
addr: 20007ed0 data: 00000000
addr: 20007ed4 data: 00014a99
addr: 20007ed8 data: 0001f718
addr: 20007edc data: 40046f00
addr: 20007ee0 data: 00000000
addr: 20007ee4 data: 00014ad7
addr: 20007ee8 data: 0001f718
addr: 20007eec data: 0000cf4b
addr: 20007ef0 data: 0001f718
addr: 20007ef4 data: 00011c97
addr: 20007ef8 data: 00011c8d
addr: 20007efc data: 00002599

=================== Registers information ====================
R0 : 00000000 R1 : 0000003c R2 : 20003ba4 R3 : 00000000
R12: 00000001 LR : 0000b983 PC : 00000000 PSR: 80000000

Usage fault is caused by attempts to switch to an invalid state (e.g., ARM)
Show more call stack info by run: addr2line -e "/tmp/precompile-arduino-renesas_uno3288890821/sketches/DC418DEDB6BD760AA642B5F0C3E93193/empty_sketch.ino".elf -a -f 00000000 0000b982 000052f6 00014a98 00014ad6 0000cf4a 00011c96 00011c8c

2

And what was the result of running the above command?

3

Not bricked. IIRC the Arduino.cc site has info re the R4 that includes the instructions to address this.

4

Hi All,
Thanks for the feedback, I actually found the answer was… in the cloud delete the R4 device and then add it as a new device all working again now. Must remember to do this if I upgrade the firmware again.

Thanks