diff --git a/EXS-Relay-V3.1-&-V5.1.md b/EXS-Relay-V3.1-&-V5.1.md
index a2106e49..42cd324e 100644
--- a/EXS-Relay-V3.1-&-V5.1.md
+++ b/EXS-Relay-V3.1-&-V5.1.md
@@ -42,7 +42,7 @@ GPIO16 Relay2 ( High = On)
 
 ![](https://user-images.githubusercontent.com/43306023/46314990-7ca52c80-c5cc-11e8-8e2c-6d355b71aebc.jpg)
 
-The only way to flashing the moduls you must soldering 3 wires to the RX/TX/GND pins from the ESP. The PCB have no serial pinout connector. For connecting the ground (GND) on a V5.0 Modul you can use one of the 2 GND pinout connectors from the PCB. For flashing the moduls enable the flashmode of the ESP, connect PIN4 (GPIO00) to GND.  
+The only way to flashing the moduls you must soldering 4 wires to the RX/TX/3V3/GND pins from the ESP. The PCB have no serial pinout connector. For connecting the ground (GND) on a V5.0 Modul you can use one of the 2 GND pinout connectors from the PCB. For flashing the moduls enable the flashmode of the ESP, connect PIN4 (GPIO00) to GND.  
 
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