Why do my Bluetooth PCB fail to pair with Android 7.1 version but work properly with iphone?

It's detecting equipment, Bluetooth emergency alarm. Mobile application for activation button via Bluetooth can not work properly on Android 7.1. If i use iPhone all is ok. Why?

PCB Design
October 13, 2023

If iPhone can connect to the Bluetooth PCB, that means, at least, PCBA is good. The most possible reason is the Bluetooth version.

Bluetooth version is not compatible. Bluetooth is a communication protocol. If the Bluetooth headset supports a version of the Bluetooth protocol that is not compatible with other devices, the connection will fail.

Try to consult Bluetooth chip suppliers and you can get a clear list of compatible phone.
If you are a retailer, it would be better to classify this product by various Bluetooth versions before recommending products with proper Bluetooth to your customer. It is a good way to ensure consumer satisfaction in terms of product and sales service.

#PCB Design #IoT

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

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