LinkIt 7697 HDK v10 User's Guide Figure 4. The COM port allocation for LinkIt 7697 HDK 2.3. Updating the flash There are two tools provided for programming the flash storage: 1) The Flash tool inside the LinkIt SDK. It’s a Windows execution program providing the functionality to program and format the flash storage, see section 2.2.4.1, “Using the Flash Tool” of the LinkIt for RTOS development platform get started guide, for more details about using the Flash tool. 2) The mt76x7-uploader on MediaTek Labs’ GitHub page. It’s a Python script providing cross-platform implementation for the flash storage. For its usage guide, refer to the readme on the project page. Select the tool based on your development requirements (see Table 1). Table 1. Comparison between Flash tool and mt76x7-uploader Supported OS Recovery mode Flash contents Format the Where to get switching read-back flash storage Flash Tool Windows Manual Supported Supported LinkIt SDK package mt76x7-uploader Windows, Automatic N/A N/A MediaTek Labs’ Linux, macOS GitHub page One thing to be noted is that when using the Flash tool, switch the board into the Flash Recovery mode for the tool to operate properly. To switch the board into the Flash recovery mode: 1) Connect the board to a power source.