Unresponsive TRB143 after SDK build upload

Hello,

I have been working on a package for the TRB143 that adds some functionality we would like using firmware TRB1_R_GPL_00.07.23 SDK download. To ensure I understand the process for compiling the firmware I compiled the standard version of the firmware and uploaded it to the TRB143 via the Web UI interface.

Unfortunately, something must have gone wrong as the TRB143 is now completely unresponsive. The 3 mobile signal strength LEDs constantly flash together at ~1sec interval.

I have tried the documented methods for resetting the device and also the method for accessing the bootloader. Nothing seems to make the device responsive.

Has anyone a suggestion or advise on how to recover the device as currently it is a fancy paperweight on my desk.

Thanks in advance…