diff --git a/README.md b/README.md
index 6b4dbcc..7d89212 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,8 @@
   *  [Installing the KaosCube Interface](#installing-the-kaoscube-interface)
 3. [Setting up functions of the KCInterface manually](#setting-up-functions-of-the-kcinterface-manually)
   *  [Setting up the Hidden Service](#setting-up-the-hidden-service)
+4. [Features](#features)
+  *  [Installing 12d1:1f01 Huawei E353/E3131 LTE Usb Modem](#installing-12d1:1f01-huawei-e353/e3131-lte-usb-modem)
 
 # Hardware
 
@@ -48,6 +50,10 @@ First step is to partition the MicroSD
 Get a buster image from https://www.armbian.com/download/ for the orange pi
 zero, as sshd is still running by default on the resulting machine
 
+And, more importantly, as of my writing, the xradio does not work with Bullseye and Bookworm.
+Which means, the small on board wifi does not work.
+
+
 Now copy binarywise the image to the partition
 	
     sudo dd bs=4M if=ArmbianBusterForOrangePiZero.img of=/dev/sdb
@@ -154,6 +160,11 @@ Then run again the update and upgrade.
 
 ## Setting up the Access Point
 
+After upgrading to the latest debian bullseye, I needed to install dnsmasq for the interface wlan0 to work:
+
+    apt install dnsmasq
+
+After that, the ap could be set up with the commands:
 
     nmcli con add type wifi ifname wlan0 mode ap con-name kaoscube ssid KaosCube ipv4.method shared
     nmcli con modify kaoscube wifi-sec.key-mgmt wpa-psk
@@ -291,4 +302,27 @@ your hidden service is running, and you can get its address under
 /var/lib/tor/hidden_service/ , or whatever name or path you wrote in
 the torrc. 
 
+# Features
+
+## Installing 12d1:1f01 Huawei E353/E3131 LTE Usb Modem
+
+
+First issue 
+
+    lsusb
+
+to check, if you are trying to install the right LTE usb dongle.
+
+
+
+Then, install usb_modeswitch with the command
+
+    sudo apt install usb-modeswitch usb-modeswitch-data
+
+
+and then switch to modem mode for the usb stick
+    
+    sudo usb_modeswitch -v 12d1 -p 1f01 -M '55534243123456780000000000000a11062000000000000100000000000000'
+
+