BLE Example HID Services can't show HID characteristic

[simon.hou]

Hello,

I used exampl:

nRF5_SDK_17.0.2_d674dde/examples/ble_peripheral/ble_app_hids_keyboard

Why can't I see any HID Services in apps (nrf Connect) in iphone 12?

But using nrf Connect on Windows can indeed see

thanks~

[simon.hou]

drive.google.com/.../view