Software Upgrade Method - Daewoo DT-4220NH Service Manual

7. SOFTWARE UPGRADE Method

1. Check whether MAIN PCB is connected to SUB PCB(JP117 to JA109).
2. Connect 9-PIN serial cable to the serial port of the computer.
3. Connect the opposite end of the serial cable to RS-232C port of SUB PCB.
4. Run Flashupgrader.exe in the PC to excute the program as shown below.
5. Select current Upgrade file
- Click "Choose..." button to select the file you want to upgrade.
- Select the file (pwSDK.inf) that you want to upgrade.
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