TurtleBot3 software and firmware update and 'waffle_pi'

TurtleBot
17

Thanks Darby for the reply,
I updated the Board Manager on Arduino IDE to 1.0.15 (also tried 1.0.16) → the tried updating the Bootloader using Arduino IDE (but failed) with the following error message:

Arduino: 1.8.5 (Linux), Board: "OpenCR Board, OpenCR Bootloader"

java.lang.NullPointerException
    at cc.arduino.packages.uploaders.SerialUploader.burnBootloader(SerialUploader.java:362)
    at processing.app.Editor.lambda$handleBurnBootloader$14(Editor.java:2519)
    at java.lang.Thread.run(Thread.java:748)
Error while burning bootloader.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I made sure the

lsusb

is showing the STMicroelectronics (NOTE: There is no DFU mode written as you mention in the emanual - but this entry in lsusb starts showing up only after DFU mode triggered on using Boot + Reset button)

Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 138a:0017 Validity Sensors, Inc. Fingerprint Reader
Bus 003 Device 006: ID 0483:5740 STMicroelectronics STM32F407
Bus 003 Device 004: ID 0765:5010 X-Rite, Inc. 
Bus 003 Device 003: ID 8087:07dc Intel Corp. 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Can you let me know some tips to go ahead with debugging?

Thanks
Sandip