This technical case study documents a repair workflow completed by TCS Pune. Customer identity and private repair-ticket information are intentionally excluded.
Representative diagnostic example: this is a general workflow, not a claim about a particular customer device.
Fault Separation
Verify charger rating and output, connector condition, USB-C negotiation where applicable, battery detection and charge current.
Board-Level Review
Charging IC inputs, protection MOSFETs, sense circuits, battery communication and firmware may require model-specific checking.
Final Verification
Test charging from multiple battery levels, adapter recognition, temperature and operation under load.
Repair Result
Educational process and quality-control guidance
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