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Hey, yes motherboards changed indeed but that’s not an issue at all.
Please note that if you purchase from ledger.com, Amazon, or one of our resellers network, then you have nothing to worry about as all of them take products directly form the manufacturer „Ledger“ https://www.ledger.com/reseller
When you connect your Ledger device to Ledger Live, it will verify its authenticity. Indeed, your Ledger device is checked every time it accesses the Manager in Ledger Live or when it goes through the Genuine Check during the onboarding process. Genuine Ledger devices hold a secret key that is set during manufacture. Only a genuine Ledger device can use its key to provide the cryptographic proof required to connect with Ledger’s secure server.
If you have set up your Ledger device yourself (you set your own pin code and generated a recovery phrase that you have written down), downloaded Ledger Live from our official website, and connected successfully to Ledger Live, your Ledger device is safe to use.
You can find more information on how to check if your Ledger device is genuine in this article: https://support.ledger.com/hc/en-us/articles/4404389367057-Is-my-Ledger-device-genuine-?support=true
I hope my answer reassures you. I remain available should you have any questions or doubts.