diff --git a/README-Combo.md b/README-Combo.md
index aa3d4baf21..9d3e52ddf7 100644
--- a/README-Combo.md
+++ b/README-Combo.md
@@ -12,6 +12,7 @@ Hardware requirements:
   Roche sends out Smartpix devices and the configuration software
   free of charge to their customers upon request.
 - A compatible phone: An Android phone with a phone running LineageOS 14.1 (formerly CyanogenMod) or Android 8.1 (Oreo).
+  Be aware that while Android 8.1 allows communicating with the Combo, there are still issues with AAPS on 8.1.
   For advanced users, it is possible to perform the pairing on a rooted phone and transfer it to another rooted
   phone to use with ruffy/AAPS, which must also be rooted. This allows using phones with Android < 8.1 but
   has not been widely tested: https://github.com/gregorybel/combo-pairing/blob/master/README.md