how to synchronize mass of data as a respond for a request from phone?

[dangerous_man]

I take the nRF UART 2.0 for reference. I make the nrf51822 be always sending packages ,and if it sends one package succussfully,and the smartphone just shows what it receives, the led will blink once too.when it works ,I find the led is always blinking,which indicates that nrf51822 is sending succussfully,Howerver,the smartphone only receives 8 packages.I don't know the reason,is there any restrictions? I need to synchronize mass of data as for a respond to the request from the phone.Thanks.

[Ole Morten]

8 is not a familiar number to me, and I can't say I've seen any problems like this. I'd suggest that you create a support case and supply the full code for your project, so that we can take a look on it and test it here.