1. On new iPhone, Settings > General > Transfer or Reset iPhone > Erase All Content and Settings
2. Erase This iPhone: Continue
3. Passcode for This iPhone: Enter
[Passcode]4. Apple ID Password: Enter
[Password]5. Are you sure you want to continue?...: Erase iPhone
6. On hello screen, swipe up > English
7. Select Your Country or Region: Malaysia
8. Quick Start: Bring your current iPhone or iPad near this iPhone to sign in and set up
9. On old iPhone, it'll pop up "Set Up New iPhone": Unlock to Continue > Continue
10. On new iPhone, it'll show "Waiting for Other iPhone...". On old iPhone, it'll show "Hold Your New iPhone Up to the Camera". Hold new iPhone to the circle area of old iPhone.
11. On old iPhone, it'll show "Finish on New iPhone". On new iPhone, Enter [Passcode] of Your Other iPhone
12. Face ID: Set Up Later
13. Transfer Data from "[Old] iPhone": Continue
14. Terms and Conditions: Agree
15. Make This Your New iPhone: Continue
16. Keep Your iPhone Up to Date: Continue
17. Siri: Set Up Later in Settings
18. On new iPhone, it'll display, "Transfering Data from "[Old] iPhone"". On old iPhone, it'll display, "Transfering Data"
Time remaining: About x minutes
19. On old iPhone, Transfer Complete: Continue. New iPhone will auto restart.
20. On new iPhone, once restart, it'll continue to install all the related apps.
21. Once completed, Finish Setting Up iPhone message will appear
URL: https://support.apple.com/en-us/HT210216