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Troubleshooting & Error Codes
2 Articles
Post-repair error diagnosis, non-genuine part messages, boot loops, charging pauses, and cellular drop fixes.
2026-10-10•14 min read•
Informational
Phone Black Screen After Replacement? Troubleshooting Guide
Fix a black screen after installing a replacement display. Bench diagnostic checklist for LCD backlight fuses, OLED power rails, and I2C shorts.
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2026-10-10•12 min read•
Informational
Phone Repair Troubleshooting Matrix: Post-Replacement Guide
Diagnose phone faults after repair with our 3-domain triage matrix. Fix bootloops, black screens, ghost touch, and iOS panics from part swaps.
Read Engineering Teardown