diff --git a/Troubleshooting.md b/Troubleshooting.md
index 2495b44..f7cb934 100644
--- a/Troubleshooting.md
+++ b/Troubleshooting.md
@@ -51,6 +51,11 @@ You need to account for this problem when designing your protocol. Some common t
 * Newline-terminated messages: Read until you see a `\n` (or any other "terminal" character).
 
 
+## How to eliminate continuous *D/UsbRequestJNI* messages in logcat output for FTDI devices
+
+FTDI devices send the control line status each 16 ms. You can reduce the tracing level with `adb shell setprop log.tag.UsbRequestJNI info`. There have been reports this this does not work on older Android versions.
+
+
 ## Does this library work with Ionic/Cordova/Xamarin/App Inventor/... development framework?
 
 If your framework can import Java .jar files, look [[here|Build-Variants#Jar]] for instructions about creating a .jar file.