The Bigtreetech SKR 2 is a new feature packed 3D printer mainboard that has suffered a slip up at launch. A substituted MOSFET, caused by a lack of availability, will potentially destroy any TMC stepper motor drivers inserted into the board. In this video, we look at the problem, how to know if your board is affected, and a few ways to fix it yourself.

Any new boards sold from this point onwards should be REVB and therefore be fixed, but I would strongly recommend checking to be sure.

I will have a full guide on this board after I have fitted it to my Ender 5.

BTT SKR 2 product page: https://www.bigtree-tech.com/products...
BTT description of problems and contact procedure: https://docs.google.com/document/d/1I...
BTT instructions to fix: https://docs.google.com/document/d/1s...
Beginner’s guide to setting up and editing firmware:    • Updated Marlin firmware setup guide -...  
Mainboard guides playlist:    • SKR V1.3 Comprehensive guide - 32bit ...  

Jumper wires from Amazon: https://amzn.to/3f7PSSz
Dupont crimping set: https://amzn.to/33xWXq2
Ferrule/boot lace crimping set: https://amzn.to/3bktGn8


0:00 Introduction
0:56 Outline of SKR 2 features
2:22 The problem: A substituted MOSFET
3:16 Options from Bigtreetech
4:11 Is my board affected?
4:35 Required Marlin firmware change
5:50 Fix option 1A - jumper cables
7:41 Fix option 1B - crimped wires
8:40 Fix option 2 - desoldering MOSFET and bridging
10:21 Conclusion

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