What can I do to get my bitcoin back from this device?
If the device thinks it is in the hands of thieves (many failed PINs), it should not disclose its contents to anyone under any circumstances. I don’t know much about the HW 1, but I hope (and you should too) that it either self-destructs or requires some sort of full reset to be usable again – losing all of its contents in the reset process .
The way to get control of the money back is to use the recovery words you wrote down and kept safe when you set up the device for the first time.
Like a critic said in 2016:
The onboarding process is quick and easy, requiring the user to choose a four-digit PIN code and write a series of “recovery words” on an information sheet provided.
These words allow the wallet to be regenerated on a replacement HW.1 if you lose or damage your original, and represent the weakest link in the device. When you have recorded the words, the card should be sealed in a safe and treated with the same care you would provide on a stack of banknotes to the value of your Bitcoin treasure.