iOS
9 questions
How to free up space on iPhone?
•Settings → General → iPhone Storage.
•Offload unused apps.
•Optimize photos (iCloud).
•Delete Safari data.
•Check large apps.
How to extend iPhone battery life?
•Settings → Battery — check consumption.
•Power saving mode.
•Disable background app refresh.
•Reduce brightness, disable Always On.
•Optimized charging.
How to transfer data to a new iPhone?
•Quick Start: bring old to new.
•Or from iCloud backup.
•Or via iTunes/Finder on a computer.
•Direct transfer takes 20-60 min.
•Check backup in advance.
How to find a lost iPhone?
•icloud.com/find or Find My app.
•Geolocation on the map.
•Play sound, Lost Mode, erase.
•Find My must be enabled.
•Works offline via device network.
How to do a hard reset of iPhone?
•iPhone 8+: Volume Up, Volume Down, hold Power.
•iPhone
•Power + Volume Down.
•iPhone 6s and earlier: Power + Home.
•Wait for Apple logo.
•Does not erase data, only restarts.
iOS: how to organize notification settings and focus modes?
Start with the requirements: what should work, what are the limitations by budget/performance/security. Then choose a solution.
iOS: how to manage photos/videos and iCloud backup?
Practice for «iOS»: make a checklist (installation, setup, backup, updates) and go through it once — this reduces the number of «mystical» problems.
iOS: how to free up space and optimize photos/videos?
Answer for "iOS": updates and backups are more important than fine-tuning. Automate backups and enable 2FA.
iOS: how to protect iPhone and set up "Find iPhone"?
For "iOS": it is useful to find the original source (documentation, release notes) and reproduce the problem with a minimal example.