error(0x3D) Disconnected, reason 61 sdk12.3

[Mr.Wu]

I test ble bond with 'ble_app_gls' in sdk 12.3.0

eg.nRF5_SDK_12.3.0_d7731ad\examples\ble_peripheral\ble_app_gls\pca10028\s130\arm5_no_packs

my phone is meizu mx4, android 5.1, another one is coolpad 8690, android 4.4.2, test app is nRF Connect, board is pca10028.

On communication with Android device sometimes the link disconnects with disconnection reason61(0x3D) - BLE_HCI_CONN_TERMINATED_DUE_TO_MIC_FAILURE.

who can help me? thanks!

[Seth Foster]

Ah I ended up solving the problem as documented in this separate devzone question, the problem was I needed to hold off on conn param negotiation until the connection was more established.