diff --git a/Diagnose-firmware-update-in-Windows.md b/Diagnose-firmware-update-in-Windows.md
index afb2281..4dbcc3d 100644
--- a/Diagnose-firmware-update-in-Windows.md
+++ b/Diagnose-firmware-update-in-Windows.md
@@ -2,7 +2,11 @@ If you cant get firmware to update/install on your device do these steps.
 
 Try boot into DFU mode by:
 1. Plug device into computer
-2. Press and HOLD the DFU button, While still holding the DFU button, press and release the reset button (WHILE STILL HOLDING THE DFU BUTTON)
+2. Press and HOLD the DFU button, While still holding the DFU button, press and release the reset button (WHILE STILL HOLDING THE DFU BUTTON).
+
+> Note : in some particular H2 (ex H2R4 with battery ), reset button does not  make a proper reset , it just freeze the screen , and do not allow you to enter in DFU . In that case,unplug it from the computer, switch off the unit with two sort pushes to the big encoder button (power off). And then keep pressing DFU button , a short push button to the encoder (power on) leads you into a proper DFU Mode. And now you can plug it through USB cable to the computer.
+
+
 3. Check Windows device manager and see if you have LPC showing up 
 
 ![image](https://github.com/eried/portapack-mayhem/assets/4393979/a5d7dccf-ebde-4514-b937-d4e3bd111fa2)