Key Responsibilities:

• Perform in-depth chip-level diagnosis and repair of laptop, desktop, and workstation motherboards.
• Use CRO (Cathode Ray Oscilloscope) for analyzing signal integrity, clock signals, and waveform abnormalities.
• Utilize BIOS programmers (e.g., RT809H, EZP2019, CH341A) for BIOS reprogramming, recovery, and firmware upgrades.
• Replace defective components, including chipsets, GPUs, MOSFETs, controllers, capacitors, and other SMD/BGA parts.
• Analyze and resolve power-related faults, short circuits, signal interruptions, and boot issues.
• Interpret and troubleshoot using motherboard schematics and board-view files (e.g., FlexBV, OpenBoardView).
• Conduct thermal diagnostics, power consumption analysis, and final validation testing.
• Maintain detailed logs of repair findings, part replacements, CRO readings, and resolution techniques.
• Handle escalated cases from L1 and L2 engineers and provide technical guidance when required.
• Follow ESD-safe procedures and ensure compliance with quality standards throughout the repair process.

Required Skills & Qualifications:

• 3–6 years of experience in L3-level chip/component-level repairs on a wide range of motherboard types.
• Strong hands-on experience with CRO and knowledge of waveform analysis.
• Expertise in BIOS chip programming and embedded firmware handling.
• Skilled in soldering and desoldering BGA, QFN, and SMD components using hot air rework stations and microscopes.
• Proficient in reading and analyzing motherboard schematics and signal diagrams.
• Familiarity with motherboards from major OEMs (e.g., HP, Dell, Lenovo).

Preferred Skills:

• Knowledge of PCIe, SATA, VRM, and other board-level protocols.
• Experience in refurbishing and rebuilding hardware for RMA or redeployment.
• Understanding of firmware-level security and hardware-embedded protections.