Stepβbyβstep fixes β proven workflows you can follow with the video
Track: Smartphone (iPhone & Android) Β· Duration: 42 min
Video lesson
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Course reader
Stepβbyβstep fixes β proven workflows you can follow with the video
Smartphone workbook β software, build context, repair, troubleshooting, and step-by-step fixes next to the video.
Use the video as the moving diagram β follow these numbered flows; stop if smoke, heat, or swelling appears.
A β iPhone (general order)
- Force restart: volume up β volume down β hold side button until Apple logo (models vary β confirm for yours).
- Charge 30+ min on a known-good brick/cable.
- Recovery mode (Finder/iTunes) if update failed β restore cautions data if no backup.
- DFU only if trained β last resort before service.
- Settings β General β Transfer or Reset β Reset Network Settings for persistent WiβFi/cell config issues.
B β Android (general order)
- Force restart (hold power 10β30s; OEM combos differ).
- Safe mode β hold power β long-press βPower offβ β Safe mode β if stable, uninstall last apps.
- Clear cache for misbehaving app; then storage cleanup.
- Reset network / Bluetooth settings if radios misbehave.
- Factory reset only after backup β last software step before hardware suspicion.
C β Hardware-first symptoms
- Reseat SIM/eSIM profile; test second SIM if available.
- Clean charge port with wooden toothpick + compressed air β not metal picks.
- If screen lifts after drop β stop; avoid pressing on battery.
More tutorials: Open video search on YouTube
Lesson quiz
Each attempt uses a random set of questions with shuffled answer choices. Pass at 70% or higher to mark the lesson complete.