@kennethlimcp. The cores we have been using got into a continuously-blinking-green mode. This tutorial has been immensely useful in getting the cores back to working mode.
My suggestion is to make this part of the standard documentation or FAQ so that it serves as a quick reference for anyone who comes across this problem. It will be nice to have a separate Troubleshooting section in the documentation part. Several such problems and solutions can be collectively presented in this. This can be very useful