Do not brush the machine by yourself, which may cause machine abnormalities
If any fault occurs, contact after-sales engineers
Contact number: 0755-83790033
Tutorial
1. Decompress the software package on the PC and obtain the "BRN" file.
2. Copy the "BRN" file to the root directory of the TF card (format the TF card in advance).
3. When the machine is off, insert the TF card with the copy of "BRN" file into the machine, and press the power button. After the machine is started, the product will automatically upgrade, and the blue light and green light will flash simultaneously during the upgrade.
4. After the upgrade is completed, the machine automatically shuts down and can be used once again.