I can not transfer data successfully after 20s reconnect the Nrf uart apk on the Nexus7

I can not transfer data successfully after 20s reconnect the Nrf uart apk on the Nexus7https://devzone.nordicsemi.com/f/nordic-q-a/1112/i-can-not-transfer-data-successfully-after-20s-reconnect-the-nrf-uart-apk-on-the-nexus7My device use the firmware program ble_app_uart to connect the nexus 7 which Installs the nRF UART 2.0 for Android 4.3 。The first connection is ok，and Data sent and received perform good。But when disconnct the link of nrf51822 and nexus 7 more then 20sen-USTelligent Community 13Mon, 30 Dec 2013 16:18:51 GMTRE: I can not transfer data successfully after 20s reconnect the Nrf uart apk on the Nexus7https://devzone.nordicsemi.com/thread/5226?ContentTypeID=1Mon, 30 Dec 2013 16:18:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a7227b9e-4f45-4ecf-bfb7-53c0e3793611Hung Bui<p>Hi, Recently Nexus 7 got updated to Android 4.4.2, does the issue remain?</p> <p>If it is, could you let me know the disconnect reason, you can find it by adding a breakpoint in BLE_GAP_EVT_DISCONNECTED event, and look for p_ble_evt->gap_evt->disconnected->reason</p><div style="clear:both;"></div>