Just bricked it

#1

Hi,
After loading a sketch with 110.492 Bytes into my CubeCell, I ended up with the following error:

  • Initialising bootloader.
  • Unhandled error: The amount of data available is outside the expected range.

On the serial Monitor the board just says:

  • Copyright @ 2019 Heltec Automation.All rights reserved.

I tried resetting, unplugging, new USB cable, different sketch, nothing works.
Any Ideas?

Board: htcc-ab02S (with GPS)

#2

hi,

could you try enter the bootloader mode? please refer this:

https://heltec-automation-docs.readthedocs.io/en/latest/cubecell/frequently_asked_questions.html

#3

Hi Jason,
I can enter the bootloader, the serial output is

. Copyright @ 2019 Heltec Automation.All rights reserved.
. bootloader start

However, when trying to program, the unhandled error

The amount of data available is outside the expected range.

appears. With a second AB02S , everything works just fine

#4

hi,

This development board may have been damaged due to transportation。

could you provide some picture?

  1. Screenshot when download failed.
  2. Two sides of the development board。