Keep the old phone available
- Back up the old device and keep it charged.
- Copy data before changing the carrier line where possible.
- Verify calls, texts, mobile data and critical apps on the new phone before erasing anything.
Check what did not move
- Some app data, downloads and accounts are excluded from standard copy flows.
- Authenticator and banking apps often require their own re-enrolment.
- Carrier activation is not the same operation as copying photos.
Move Everything to a New Phone↗Transfer WhatsApp↗Transfer an eSIM↗Transfer Authenticator Apps↗How to Verify a Phone Transfer↗
Sources & verification
Last checked: . Official guidance is the primary source. Steps can differ by model, carrier and software version.
- Copy apps and data from Android to a new Android device ↗Google Android Help · 2026-09-26 · PH2-GOOGLE-TRANSFER
- Transfer data to a new iPhone or iPad ↗Apple Support · 2026-09-26 · PH2-APPLE-TRANSFER
- Content that can be transferred with Smart Switch ↗Samsung Support · 2026-09-26 · PH2-SAMSUNG-SMART-SWITCH-DATA