Decision flow (safe)
- Reproduce the symptom reliably.
- Check software/driver causes first.
- Confirm if ssd-linked signs are present.
- Escalate to service when risk is high.
Directional cases
- Brand sample: Google · confidence high · risk low
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DIAGNOSTIC NOTE
Phone: Screen Flicker
Possible cause: ssd. Start with low-risk checks and avoid disassembly unless trained.