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A bent SL/SR button board cable will cause the SYNC button, the LED lights and the SL/SR buttons to be unresponsive. This will make the Nintendo Switch Joy-Con unable to connect to a game console by itself without a second Joy-Con.
Before using this guide, determine that the buttons are unresponsive by going to the system settings of the game console and testing the input devices under the 'Controllers and Sensors' section.
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Remove the four 6 mm screws visible on the back of the Joy-Con using the Tri-point Y00 screwdriver.
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Open the Joy-Con by inserting the opening pick tool into the bottom corner and sliding it upwards.
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Remove the two 3 mm screws on the charging rail using the Phillips #00 screwdriver.
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Remove the three 3 mm screw on the battery compartment using the Phillips #00 screwdriver.
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Use the plastic spudger tool to lift the tab lock holding the bent button board cable. Lightly lift the battery compartment to have more space while doing so.
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Once the tab is unlocked, remove the bent cable.
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Insert the new replacement button board cable into the tab.
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Use the spudger to re-lock the tab to hold the new part in its place.
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To avoid having the same problem in the future, make sure the new cable is bent under the battery compartment after reassembly.
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Lightly lift the battery compartment to make it easier to bend the new button board cable under it.
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To reassemble your device, follow these instructions in reverse order, starting from Step 4.
To reassemble your device, follow these instructions in reverse order, starting from Step 4.
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UPRM-COOLS STEPHENS-S22S2G4
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Valuable step-by-step guide plus pictorial samples. Keep writing your good stuff, Javier!
Nice guide. To loosen the battery compartment on my controller I had to remove te battery first. I couldn't see te top 2 screws in step 4. The battery was sticked to the bracket with some tape but removes easily. Underneath the battery were two screws.
Edit: maybe its different because I had to change the button board on the left JoyCon.
Yes! This Guide above shows the right Joycon. As for the left one there are two screws below the battery as you said!
Very helpful step-by-step guide. Thank you.
Had to change the Button Board on the left Joy-con. The screws were also located under the battery in my case. Attention: there 4 screws under the battery, two of which diagonal to each other that hold the battery compartment in place. No need to unscrew all 4.
I’ve replaced the board, but SL and SR still not working, also two lights not working. What to do?
