There could be many reasons depending on the device you are using – check out the solutions suggested by LEGO Education here: https://education.lego.com/en-gb/product-resources/spike-prime/troubleshooting/bluetooth-connectivity
There could be many reasons depending on the device you are using – check out the solutions suggested by LEGO Education here: https://education.lego.com/en-gb/product-resources/spike-prime/troubleshooting/bluetooth-connectivity