I would reword this part, because as stated is simply not legal in the US.
“Although you may modify the relevant code pursuant to the open-source licenses, any unauthorized modification, flashing, or hacking of the official firmware provided by the Company will immediately void the warranty for your Snapmaker device. The Company shall not be liable for any software or hardware failures, data loss, or other damages arising from user modifications of the firmware.”
You cannot refuse a warranty claim without providing the users modifications are at fault. Simply flashing the device with modifications is not a justification.
Laws involved:
The Magnuson-Moss Warranty Act - 15 USC 2302: Rules governing contents of warranties Requires proof that user modification caused the defect, it also does not allow you to void the warranty as a whole, it only allows the directly affected part.
Legal precedent: FTC v Weber 2022 - https://www.ftc.gov/system/files/ftc_gov/pdf/Weber-Stephen%20Decision%20and%20Order.pdf?hl=en-US and FTC v. BMW 2015 - https://www.ftc.gov/system/files/ftc_gov/pdf/1323150bmwfinalorder%20Decision%20and%20Order%20BMW%20October%2022%2C%202015.pdf?hl=en-US
Regulator precedent: In 2018 the FTC sent letters to Sony, Microsoft, Nintendo, Hyundai, HTC, and Asus. https://www.ftc.gov/system/files/documents/foia_requests/Warning-Letters.pdf
The letter notified them that the “Void if Removed” stickers or “Unauthorized Modification” clauses were not legal, and demanded change or the FTC would take further legal action.
If I find this in my documentation when I get my printer, I will absolutely file a complaint with the FTC. My post here is intended to help you avoid this as I appreciate snapmakers openness to allowing us to modify our printers, avoiding the need for us to “hack” our devices.
Thank you for your attention to this matter.
PS: Thank you for allowing us to actually own our printer, and use it as we see fit… unlike some… other companies.