My 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 20s later， I use the APK reconnect the nrf51822,I found the Data transmission will be interrupted 。 Who can tell me if there is some bugs in the firmware program or nRF UART 2.0 for Android 4.3？？ My softdevcie version iss110_nrf51822_5.2.1 ,SDK version is nrf51_sdk_v4_3_0_27417。 The .firmware program Title here。 [b]I found the 20s equal with the paraments blow： #define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(20000, APP_TIMER_PRESCALER)[/b]
