I am trying to upgrade the firmware in my MTCDT-H5 from 1.1.2 to 1.3.2 but it is repeatedly failing part way through saying “An error occured uploading the file. Please try the upload again or select another file. Bad upgrade file”.
I have tried lot of things but always get the same result:
Re-download and unzip the .bin file.
Use the upgrade to version 1.2.2.
Reset the MTCDT-H5.
Use a different browser (Chrome, Edge, Firefox all tried).
Use a different computer.
Throughout the device maintains a terminal connection over USB and does not report any issues.
Is there another way to do the upgrade or must there be a fault?
Thanks
Chris