I was trying to install some apps and wasn't working. Was saying to install BTC and ETH apps, when they are already installed.

So I decided to update the firmware and right now it's stuck with the writing "MCU Firmware is not genuine" I did as suggested unplug, hold the right button and plug but nothing is happening. I get the writing recovery on screen but then it goes back to "MCU Firmware is not genuine". Any solutions to this?