From 4b40fdeabf9263d010f22faa5f7443fdd1dfcf28 Mon Sep 17 00:00:00 2001
From: Signor Pellegrino <68112357+flyrouter@users.noreply.github.com>
Date: Thu, 17 Jul 2025 17:58:56 +0300
Subject: [PATCH] Update hardware-programmer-ch341a-voltage-fix.md

---
 en/hardware-programmer-ch341a-voltage-fix.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/en/hardware-programmer-ch341a-voltage-fix.md b/en/hardware-programmer-ch341a-voltage-fix.md
index 7f0b96c..a289a88 100644
--- a/en/hardware-programmer-ch341a-voltage-fix.md
+++ b/en/hardware-programmer-ch341a-voltage-fix.md
@@ -68,6 +68,15 @@ sudo udevadm trigger
 
 then unplug the programmer and plug it back in a USB port.
 
+### Power supply isolation
+
+We also recommend insulating the output going to the VCC terminal block and clamps
+with a piece of heat pipe to prevent power supply to the board through this circuit. 
+Power supply can trigger the processor to start up and the work of reading/writing 
+information from the flash chip will be disrupted.
+
+![](../images/hardware-ch341a-hack-7.png)
+
 ### Software
 
 - [SNANDer](https://github.com/McMCCRU/SNANDer) or [this fork](https://github.com/Droid-MAX/SNANDer)