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Blueforcer · Sep 26, 2024 · 0721eb0 · 0721eb0
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diff --git a/docs/_sidebar.md b/docs/_sidebar.md
@@ -2,6 +2,7 @@
 
   - [Quick start](quickstart.md)
   - [Flasher](flasher.md)
+  - [Upgrade](upgrade.md)
   - [Hardware](hardware.md)
   - [FAQ](faq.md)
   - [Remove AWTRIX](original.md)

diff --git a/docs/upgrade.md b/docs/upgrade.md
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+# Upgrade from AWTRIX 2 to AWTRIX 3
+
+AWTRIX 2 used to run on an ESP8266. AWTRIX 3 requires more resources and therefore only runs on an ESP32. 
+
+If you have the official AWTRIX 2 mainboard, you can simply swap the ESP8266 Wemos D1 mini 1:1 with an ESP32 D1 mini without changing the pinout. However, you will need the AWTRIX2_upgrade.bin firmware as the pinout has remained the same.
+
+If you do not have a mainboard then replace your current ESP8266 with an ESP32 as a WROOM D2 variant, a normal NodeMCU32 should also do the trick.
+Use the pinout of the Ulanzi and also flash the Ulanzi firmware