[Arco] Firmware Update Guide

The firmware update process for Arco is slightly different from other models. Please follow the steps below carefully to ensure a successful update.

USB Preparation

1. Format your USB drive to FAT32, with 4096 bytes as the allocation unit size.
2. We recommend using an 8GB or 16GB USB 2.0 drive.
3. Please perform the formatting on a Windows system. 
   

Download Firmware Files

1. Check your current firmware version. If it is below 1.7.7, you must update in the following order: 
    
   V1.4.5 → V1.6.3 → V1.7.7 → V1.7.9 
    
2. Visit the firmware update page on the Phrozen official website and download the appropriate version. 
   
3. After extracting the ZIP file, you will find a folder named “phrozen_dev”. 
   
4. Copy this folder into a clean USB drive (make sure there are no other files on the USB).
5. Open the USB to confirm the folder structure is correct. 
   

Performing the Update

1. If you are using the Chroma Kit (multi-color printing module), make sure it remains connected to the printer throughout the update.
2. Insert the USB into the Arco. After a few seconds, a USB icon should appear in the top-right corner of the screen, indicating the USB has been recognized. 
   
3. Go to the “Settings” menu.
4. Tap “Update”, then confirm again in the pop-up window to begin the update . 
   
5. Once the update is complete, a confirmation message will appear. 
   
6. Manually power off and restart the machine.
7. After rebooting, tap the “i” (Info) icon in the bottom-left corner and tap Printer Info to verify that the firmware version has been successfully updated.