¶ 1.File Format or Naming Issue
Troubleshooting Steps:：
(1) Please note that Kobra 3 Combo can only recognize file formats with ".gcode" as the file suffix. Please check if your file meets this formatting requirement. It may be that you copied the unsliced file directly to the USB flash drive so that the file cannot be recognized.
(2)Kobra 3 Combo cannot recognize too special characters, so it is recommended to use English or numerical names. At the same time, please ensure that the file path level is not too high, and the file exists in at most two folders, otherwise the file may not be correctly recognized.
(3)If only one slice file cannot be recognized, you can first try to restart the device or re-slice it.
¶ 2.USB Port Issue
Troubleshooting Steps:：
There are two USB ports on the front of the Kobra 3 Combo device base. The leftmost one is the USB port of the multi-color box, and the other two are used for file USB drives. And try plugging the USB drive into another USB port. (Please note that if you try to insert two USB drives at the same time, but only the files of one USB drive are recognized, please do not worry, this is normal. This is because one of the two USB ports is reserved as a backup)
¶ 3.USB Drive Issue
Troubleshooting Steps:
(1)Ensure your USB drive's storage capacity is not over 8GB. If it exceeds 8GB, try using a USB drive with a capacity below 8GB for the operation. Larger-capacity USB drives might have compatibility issues with the printer, so it's advised to use a USB drive within 8GB for optimal compatibility and stability.
(2)Try formatting the USB drive as "FAT32 with 4096 bytes," ensuring the correct formatting method.
(3)If the problem persists, try testing with a different USB drive that has a capacity of 8GB or less. The issue might be with the previous USB drive if the new USB drive is recognized.
¶ 4.Other Issues
Troubleshooting Steps:
The above troubleshooting methods did not resolve the issue.We recommend that you create an after-sales work order to provide the after-sales engineer with feedback on the previous inspection process and results. The after-sales engineers will assist you in finding a solution to the problem(Reply time :1 working day)
Please click this link to submit your ticket: After-sales Ticket Submission Page