A little time on day one saves problems later. Work through this list in order.

1. Check the phone itself

1. Check the box, the phone’s IMEI and the screen. See how to check if a phone is original and how to check your phone’s IMEI.
2. In Pakistan, check PTA status. See how to check if a phone is PTA approved.
3. Keep the receipt and warranty card.

2. Update the software

Run Software update in Settings so you start with the latest security fixes. See how to update your phone’s software safely.

3. Move your data

Use the phone maker’s switching tool, or your Google or Apple account. See how to switch phones without losing anything.

4. Turn on security

1. Set a screen lock: a PIN or password, plus fingerprint or face unlock.
2. Turn on Find My Device (Android) or Find My (iPhone).
3. Turn on two-step verification for your Google or Apple account.

5. Set up backups

Turn on automatic backup for photos and app data, and back up WhatsApp separately. See how to back up your WhatsApp chats.

6. Tidy the defaults

• Remove or disable apps you do not need.
• Review app permissions for location, microphone and camera.
• Set the display, text size and notification settings the way you like.
• Add a case and screen protector if you want one.

7. Charging and battery

Use the charger and cable that came with the phone, or ones from a trusted brand. Fast charging works best with a matching charger.

Keep for later

Write down where your backups are and which account is linked to the phone. You will need them if you lose it or buy another.