ti ble cc2541 use parameters Slave Latency=1 , connect interval =1s to connect with apple bluetooth application.

 my peripheral conncets with apple ipad with these parameters: the salve latency=0,conncet interval=30ms,supper timeouts=6s.

then peripheral request ipad to  modify the ipad's parameters to these:   the salve latency=1,conncet interval=1s,supper timeouts=6s.

i know the parameter success to be modified.

but ipad cannot received peripherals sending data.

why?