let’s see what we can do. Firstly, can you verify that your power supply is working as it should, providing at least 2.5A and between 5.0V and 5.2V to the Shake? If not, do you have another power supply that you can use to test if the Shake will respond?
It was a good idea to change the Pi board since that could have been the cause of the problem. Have you also tried to switch the microSD card with a new one? If not, could you try to reinstall the Shake OS in another MLC or SLC-grade card? microSD card topics — Instructions on Setting Up Your Raspberry Shake
In any case, if the power supply is ok, and changing the microSD card has not solved the issue, could you please confirm if the lights on the Shake, when you turn it on, are behaving as per the following list?
Working Raspberry Shake lights ensemble:
- Pi board
- red (solid)
- green (flashing occasionally, every ~2-5 seconds)
- Shake board
- Ethernet port
- green (flashing repeatedly)
- orange (solid)
If all the lights are present, then the Shake should be successfully connected to your local network. I assume, from your description of the problem, that you will notice a difference between how the lights should be and what you can see, and this can give us insight into what is happening to your Shake.