The broadcast time is changed to 2 seconds, often unable to connect successfully

[lp292650230]

Use SDK16 blinky firmware, modify the broadcast interval to 2 seconds, use Android nRF-blinky connection, often unsuccessful connection phenomenon, APP interface is displayed as Initing.... Use nRF-connect to connect successfully every time. (Mobile system AndroidX).
Modify the broadcast interval to 100 milliseconds, you can connect successfully using Android nRF-blinky
Do I need to modify any parameters of nRF-blinky?

[philips77]

Could you post the logs from LogCat? it appears that nRF Blinky has sent some request and it's waiting for a callback, but I don't know which request. It's one of those:

Android-nRF-Blinky/app/src/main/java/no/nordicsemi/android/blinky/profile/BlinkyManager.java

Lines 158 to 163 in 2f3a06b

	protected void initialize() {
	setNotificationCallback(buttonCharacteristic).with(buttonCallback);
	readCharacteristic(ledCharacteristic).with(ledCallback).enqueue();
	readCharacteristic(buttonCharacteristic).with(buttonCallback).enqueue();
	enableNotifications(buttonCharacteristic).enqueue();
	}

[lp292650230]

Sorry，Correct the following，The nRF-blinky #41 application interface always shows Connecting。
LogCat has been sent to you by e-mail, and please help analyze the reason.