➡️| 3.9 Tutorial for version 2.3.07

Overview

This tutorial demonstrates based on version 2.3.06, other firmware versions can refer to upgrading

directly from 3.3-3.8 as well.

Reference links:

This update mainly includes the following content:

1.Fixed the issue with uint48 signature error in EIP712.

2.Optimized SE communication classification for an improved user experience.

3.Enhanced interaction for TRON 2.0 staking.

This upgrade process supports one-click upgrade and does not require data cable plugging and

unplugging.

Not activated - meaning that the hardware device has not been created with a password, you can enter upgrade mode using the following method.

Activated - meaning that the hardware device has been created with a password, you can directly use the following tutorial to upgrade.

Open the linkhttps://connect.keypal.pro/，using Google Chrome, turn off KeyPal and connect it to

your computer. Click on the web link prompt that pops up in the lower right corner to open the

management interface. You will see the following prompt, click on "Upgrade Available".

On the firmware upgrade page, you can see the version information of the firmware upgrade. Click

"Upgrade Firmware".

Please confirm that you have backed up the mnemonic phrase completely, check the box to

confirm "Yes, I have already backed it up", and then click "Continue".

When you see the prompt "In KeyPal", check the hardware device screen prompt: "Do you want to

restart device in bootloader mode", and according to the prompt, click the device right button

"Confirm" to confirm and start the upgrade.

When you see the prompt "Device is ready", click "Upgrade Firmware", press the "Yes" button on

KeyPal according to the prompt, and start the first update process.

Confirm the upgrade operation and press the device right button to confirm.

Wait for the upgrade to complete (estimated 1-2 minutes).

Upgrade complete, the hardware screen displays: Succeed, press any key to continue. You can

unplug the data cable now.

Congratulations, you have successfully completed the firmware upgrade process.

Last updated 1 year ago