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• Earphone Serial port board: B.CNSISP7A • USB extension cord
6.2 How to upgrade mboot with ISP_Tool
• Download the ISP_tool and MbootPackage:
ISP_tool:
https://drive.cvte.com/p/DSiMQ1AQpBQY2sQD
Mboot Package:
https://drive.cvte.com/p/DUvF7yQQpBQY1sgD
• Connect PC and mainboard with serial tool
• If any uart print on serial tool, input “00112233” to stop uart. If no print on serial tool ,discon-
nect it.
• Open ISP_tool. Swtich to “Cong” page .Select prot type to “USB”
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