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Note
1The supported USB disk formats are FAT, FAT32, and NTFS.
2For the CHG90 model, make sure that each upgrade file is a BIN format file, follows the CHG90 model naming rule
3Make sure that the USB disk only contains one upgrade file for each model, and then follow the instructions in this guide.
4If you want to revert or downgrade to a lower version, change the file name as
5If the No valid update files found. Please check your USB device and try again. message is displayed, this is probably due to the following reasons.
‒‒ No USB disk is inserted into the USB 1 port. ‒‒ The USB disk format is not supported.
‒‒ The USB disk contains no valid upgrade files. (No upgrade files exist, or the file names are incorrect.)
6Do not turn off the monitor. And prevent the upgrading from any interruption as far as possible. If an interruption happens, the monitor will return to the production version.
――Note that the production version may not be the same as the version before this upgrading if some other upgrading has been done earlier.
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