Ledger hot-fix for Nano/Banano app after firmware update (1.4.0 - S+)

Remember, this is an temporary fix, this will skip the block confirmation screen and sign whatever is sent to the Ledger so double check your input. I will not take responsibily for any problem that this modifications may caused.

Prepare:

• Ubuntu VM with USB Passthrough (Mac with Parallels,...) or an Ubuntu Host
• Ledger Device (S, S+, X,...)

Step 1 - Install Docker

Add Docker's official GPG key:

sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

Add the repository to Apt sources:

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

Install Docker

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Step 2 - Install the app

git clone https://github.com/manhtruongwang/app-nano
cd app-nano

Plug your Ledger to PC, enter PIN and stay on app select screen

sudo docker run --rm -ti  -v "$(realpath .):/app" --privileged -v "/dev/bus/usb:/dev/bus/usb" ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder:latest

Install it to Ledger and with accept prompt on Ledger

For Banano: Change COIN=banano in Makefile

For Nano: Change COIN=nano in Makefile

For Ledger S:

BOLOS_SDK=$NANOS_SDK make load

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For Ledger S+:

BOLOS_SDK=$NANOSP_SDK make load

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For Ledger X:

BOLOS_SDK=$NANOX_SDK make load

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Step 3 - Enable auto-receive

Open Nano/Banano app on Ledger, enable auto-receive, all blocks that's sent to Ledger will be auto-signed

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You can now use Ledger device with Nault for Nano/TheBananoStand for Banano!