diff --git a/Troubleshooting.md b/Troubleshooting.md
index c41a02a..97f0038 100644
--- a/Troubleshooting.md
+++ b/Troubleshooting.md
@@ -9,8 +9,8 @@ The board is not turning on, you can't hear the power stage buzz noise, and no m
 * Check that power is connected and voltage is >36V while flashing. If the board draws more than 100mA in idle, it's probably broken
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-The board is turning on as soon as the battery is connected
-* The first TIP127 mosfet is shorted, check it with a multi-meter
+The board is turning on as soon as the battery or charger is connected
+* The top TIP127 mosfet is probably shorted (Q2 in [schematics](/docs/20150722_hoverboard_sch.pdf)). Use a multi-meter to check the continuity between drain and source. If your multi-meter beeps, the mosfet is shorted thus you need to replace it
 <br>
 
 You are unable to unlock the chip or flash the firmware