Welcome to the HP Community. This is a great place to get support, find answers and tips to your technical queries. I have reviewed your post and I understand, there's an issue with the Bluetooth connectivity.
Don't worry, I'm here to help!
Let's try these steps -
Solution# 1 Update the printer firmware -
On your mobile device, make sure it is connected to the Internet, and then open the HP Sprocket app. If there is a firmware update available, a firmware update screen displays. Follow the on-screen prompts to complete the update.
Solution# 2 Reset the printer -
On the printer, locate the reset button near the charging port, insert a straight pin into the reset button access point, and then press the reset button for 3 seconds.
Let me know how that goes.
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