Page 40 - Ledger Nano X User Manual
P. 40

3. The device will reset after the third incorrect attempt as a security measure.


               Next steps

               You've successfully reset your device to factory settings. You can either:
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                   ●   Learn how to set it up as a new device to generate and backup new private keys.
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                   ●   Alternatively, restore your device from a recovery phrase to restore the private
                       keys associated to an existing recovery phrase.

               Check hardware integrity



               Check the hardware integrity of your Ledger Nano X device to check that it has not been
               tampered with. This article contains detailed technical information about the security of

               your device.


                 Caution
               Please handle the Ledger Nano X device with high care while you proceed. Be aware
               that once opened, your device will not be refundable or exchangeable.


               Microcontroller (MCU)


               The Secure Element (SE) checks the full microcontroller flash at boot, as described in
                             ​
               this blog post. If it has been modified, you'll get a warning at boot. As an additional
               check, you can open the device to verify that no additional chip has been added,
               compared with the images below, and that the MCU is an STM32WB55. The Secure
               Element is marked J2MJE9.


               Hardware revisions



               Revision 1

                   ●   Black PCB




















                                                     Front of the PCB




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