diff --git a/README.md b/README.md
index 548fe66..f48e5f4 100644
--- a/README.md
+++ b/README.md
@@ -194,7 +194,10 @@ If this still doesn't fix the disconnects and the ESP becomes unreachable, the
after a configured amount of time.
### Pairing with the Lock (or Opener) doesn't work
-There are reports that ESP32 "DEVKIT1" module don't work and pairing is not possible. The reason is unknown, but if you use such a module, try a different one.
+First, try erasing the flash and then (re-)flash the firmware. To erase the flash, use the espressif download tool and click the "Erase" button.
+Afterwards flash the firmware as described in the readme within the 7z file.
+
+Also, there are reports that ESP32 "DEVKIT1" module don't work and pairing is not possible. The reason is unknown, but if you use such a module, try a different one.
Reported as working are:
ESP32-WROOM-32D (DEVKIT V4)