Hi ,
Our customer use nRF52832 to design the mouse. Currently they had problem to do the connection with Lenovo T470 after power cycling (POWER OFF and Then POWER ON)
In order to make issue easy , we ask customer to use SDK15.2 BLE_Periphrial HID mouse example to verify the issue.
What we observer was the nRF52832 was advertising but the T470 was not response it (never had us connection indication).
The window version of T470 was as bellowing

We had record the log by Ellisys sniffer
52832 nRF5_mouse with T470.btt
Did you have ever see such kind of behavior
BR
Brian Chang