One of the two most common problems users face when updating firmware is the warning “MCU Firmware Is Not Genuine” (the other one is “MCU Firmware Is Outdated”). What Does This Message Mean? The message “MCU Firmware Is Not Genuine” is …
Connect your Ledger Nano S. In Ledger Live, select MCU firmware is not genuine and click Repair. The repair process will start. If the Ledger Nano S is still displaying MCU firmware is not genuine, press both buttons three times, the device will then display the Dashboard and the update can continue. If the loader is at 100% and the device stays stuck on Bootloader:
Often this problem appears in the form of a message where the Ledger device shows an error: “MCU firmware is outdated” (the other most common one being “ MCU Firmware is not genuine ”). This is especially aggravating, since updating the firmware is exactly what you are trying to do.
I have my ledger nano S since Dec 2017. I have never updated it until yesterday. I used LEDGER LIVE instead of the old ledger manager thinking I was doing the right thing for safety. Now I am stressed. I deleted the apps & started the update. It stopped update showing MCU FIRMWARE IS NOT GENUINE. I then went to troubleshooting on your website. When I hold down the left button & re-connect I ...
Mine currently reads "MCU Firmware is not genuine". I was able to access my wallet apps on my Nano S until I attempted a reset after getting "MCU Firmware is not genuine" multiple times. The chrome "Ledger Manager" app is also not functioning correctly anymore. The web app gets stuck on the splash screen but never opens.
Better to be square than to move in wrong circles.