Hi everyone,
I'm currently working on a project with TWS using what I believe is a Bluetrum Bluetooth chip with the marking "BT167CT".
However, I'm running into a wall trying to find the correct SDK and documentation for this chip. I'm hoping someone in the community might have some insights.
Which SDK should I use? Bluetrum's SDKs are typically organized by chip family. For example:
AB530X series for basic Bluetooth audio
AB561X / AB565X series for TWS earphones
BT892X / BT895X series for more advanced applications
I'm not sure which family "BT167" belongs to, if any.
Where can I find documentation? Datasheets, reference schematics, or any technical docs would be incredibly helpful.
I already have with me - downloader , testkit and TF card 
My goal is to OTA upgrade
Thank You
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