A customer reported a USB interface failure on their OBDSTAR X300 PRO4 diagnostic tool (SN: 903420059130) purchased just three months ago. The device consistently fails to recognize USB drives or card readers when connected to the host unit, indicating a hardware malfunction.
Technical support analysis determined that the issue requires VCI motherboard replacement to resolve the USB recognition problem. Although the device was recently purchased, manufacturing records show it was produced in 2024 and falls outside standard warranty coverage.
The support team provided comprehensive MD50 VCI motherboard replacement guidelines(MD50 equipment replacement VCI motherboard guide), allowing technically capable users to perform the repair independently. For customers unable to execute the replacement, the recommended solution is returning the OBDSTAR X300 PRO4 to an authorized service center for professional repair.
Professional repair services are recommended for complex motherboard replacements to maintain device integrity and performance standards.
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