nrf52840 connection issue

[siruiwang]

I am using nRF Connect app  testing  bluetooth connection ,and I got problems in some Moto phones ,and error message is in the below pictures , below model number is Moto Z play and Moto M, mcu number is nRF52840,can you help me solve this problem, thank you

[MartinBL]

Hi,

1. Are you testing with an example from our SDK or custom code?
2. Can you provide a Sniffer trace? You can use nRF Sniffer if you have a Nordic kit to spare. 

The GATT LMP TIMEOUT error is not an uncommon topic here on devzone. You can try to browse through some of these posts and see if you find a solution.