diff --git a/FAQ.mediawiki b/FAQ.mediawiki
index 58ebfb7..3c4ffc4 100644
--- a/FAQ.mediawiki
+++ b/FAQ.mediawiki
@@ -1,12 +1,22 @@
 This is a collection of FAQ-style troubleshooting tips.
 
-== My USB device is not recognized ==
+== Do I need an OTG adapter? ==
+
+=== Android device and serial device with USB-C connector ===
+
+No OTG adapter is required if the serial device correctly implements USB-C. Typically the the CC pins are connected to GND with 5,1 kΩ resistors each, to mark the device as USB peripheral.
+
+=== Other connector combinations ===
 
 Connecting an USB device with just an USB cable will not work. You have to attach an [https://en.wikipedia.org/wiki/USB_On-The-Go OTG adapter] to your Android device to switch it into host mode. This adapter typically provides an USB A socket, where you attach a standard USB cable.
 
+== My USB device is not recognized ==
+
+Check OTG adapter as discussed in previous question.
+
 Check with an App like ''Serial Example'' in this project, if your device is shown. If no USB device is shown, check the web for [https://developer.android.com/guide/topics/connectivity/usb/host.html USB Host Mode] aka. [https://en.wikipedia.org/wiki/USB_On-The-Go USB OTG] support for your Android device. Missing support is more likely for older devices. 
 
-For an incomplete list of Android devices with known issues look [[Compatible-Android-Devices|here]].
+For an incomplete list of older Android devices with known issues look [[Compatible-Android-Devices|here]].
 
 
 == My USB device is recognized, but no driver is detected ==
@@ -35,6 +45,9 @@ Not all drivers / devices support non-standard baud rates. See [[FAQ#Feature Mat
 
 Most Arduinos with CDC-ACM driver use the DTR line to determine serial channel readiness.  In your Android code, call <code>setDTR(true);</code>
 
+== Can my Android device be powered by the external device? ==
+
+Typically communication and power supply cannot be combined. Might be possible with USB-C and USB PD implemented in the serial device, but typical USB-C serial serial devices only use simple 5,1 kΩ resistors to GND. 
 
 == How do I access <code>/dev/ttyUSB0</code>? ==