➡️| 3.5 Tutorial for version 2.3.00-2.3.02

*This update mainly includes the following contents 【Version 2.3.02】

1. Support the creation of 18/24 mnemonic words

2. Optimize BTC transfer miner fee reminder

Note: This upgrade process supports one-key upgrade without the need to unplug the data cable

Use Google Chrome to open the link https://connect.keypal.pro/, shut down KeyPal and connect it to the computer, click the WEB link that pops up in the lower right corner to open the management interface, you can see the prompt content in the figure below, we need to first Start from step 1, first click [upgrade available].

1-1 On the firmware upgrade interface, you can see the version information of the firmware upgrade, click [Install Firmware].

1-2 Please confirm that the mnemonic information has been fully backed up, check and confirm and click [Continue]

1-3 When you see the prompt [Device is ready], click [Upgrade Firmware], and press the Yes button on the KeyPal according to the prompt to start the upgrade.

Waiting for the firmware to be downloaded

Confirm the upgrade on the KeyPal hardware device

Then wait for a few minutes for the upgrade to complete without any operation. After the upgrade is complete, the hardware device will display [Succeed], and the upgrade has been successfully completed at this time. Press OK and unplug the data cable.