# Wiring ESP01
* Use GPIO2 to ground to reset all settings in hard way - 2-6 sec after boot / not before!! Set GPIO2 to ground before boot change boot mode and go to special boot that do not reach FW. Currently boot take 10 sec - giving 8 seconds to connect GPIO2 to GND and do an hard recovery for settings   
* Use GPIO0 to ground to be in update mode 

![](https://raw.githubusercontent.com/wiki/luc-github/ESP3D/images/HW/Wires.png)