BenQ E24-5500 Service Manual page 27

Figure 3.2
3.2 If the FW version is correct, then do factory reset in user menu as figure3.6, else skip to step2 to redo upgrade.
Method 2:
Step1. AC on and turn on TV by remote control or right side "power" button of TV monitor as figure2.1.1.
Figure2.1.1
Step2. Plug U-disk with "upgrade.pkg" file to TV monitor, and it will detect the U-disk as figure2.2.1.
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