iPhone 14 Pro Max cellular and iCloud not working

The issue you have described actually consists of two separate problems, and each should be diagnosed independently.

1. iPhone only works on Wi-Fi and not on the cellular network: If your iPhone can access the internet over Wi-Fi but cannot connect using mobile data, the problem is usually related to your cellular service rather than your Apple ID. Possible causes include:
   1. A faulty or damaged SIM card. Contact your mobile carrier and ask them to test your line or replace the SIM card (or reissue the eSIM if you are using one).
   2. The cellular plan may not be active, or there may be an issue with your carrier account.
   3. The iPhone may be carrier-locked, meaning it can only be used with the network provider to which it is locked. If you inserted a SIM card from another carrier, it may not connect until the device is officially unlocked by the original carrier.
2. Unable to sign in to iCloud or Apple ID from the Settings app
   1. If you cannot sign in to your Apple ID through Settings, there are several possible reasons:
   2. Activation Lock: If the iPhone is still associated with the previous owner's Apple ID, you will not be able to use it as your own. The previous owner must remove the device from their Apple Account using the Find My service or by signing in to their Apple Account and removing the device from their list of trusted devices. Until this is done, the Activation Lock cannot be bypassed.
   3. Screen Time restrictions: If Screen Time is enabled, the Account Changes setting may be restricted. This can prevent signing in to or making changes to an Apple ID. Check Settings > Screen Time > Content & Privacy Restrictions > Account Changes and ensure that changes are allowed.
   4. A temporary Apple ID authentication or network issue could also prevent sign-in. Ensure the iPhone has a stable internet connection and that Apple's services are operational.

Because these are independent issues, it is important to determine whether the cellular connectivity problem and the Apple ID sign-in problem are related or merely occurring at the same time. Resolving one does not necessarily resolve the other.

Settings > Screen Time > Content & Privacy Restrictions > Account Changes > [Allow]

Please follow the pic below.

If you see No Service or Searching on your iPhone or iPad

1. Check your coverage area. Make sure that you're in an area with cellular network coverage. ... 
2. Restart your iPhone or iPad. Restart your device. ... 
3. Check for a Carrier Settings update. ... 
4. Take out the SIM card. ... 
5. Reset your Network Settings. ... 
6. Update your iPhone or iPad. ... 
7. Contact your carrier. ... 
8. Get more help.

If you see No Service or Searching on your iPhone or iPad ...

Remove your SIM card from the SIM card tray and then put the SIM card back. ... Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.

If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad ...

Learn what to do if you see a SIM not supported alert.

If you see No Service, Searching, or SOS on your iPhone or iPad

1. Check your coverage area. ... 
2. If you see SOS or SOS only. ... 
3. If you're on 3G network. ... 
4. Restart your iPhone or iPad. ... 
5. Check for a Carrier Settings update. ... 
6. Turn your cellular line off and back on. ... 
7. Reset your Network Settings. ... 
8. Update your iPhone or iPad.

More items...•

If you see No Service, Searching, or SOS on your iPhone or iPad

To be able to use any SIM across the globe you must have "No SIM Restriction" against Network Provider Lock. Please refer to the pic below.

If you see No Service or Searching in the status bar on your iPhone or iPad (Wi-Fi + Cellular), your device isn't connected to a cellular network. If you see SOS or "SOS only" in the status bar, your device can still make emergency calls.

If you see No Service, Searching, or SOS on your iPhone or iPad

Apple ID and Activation Lock

iCloud uses Apple ID credentials.

If you do not remember the Apple ID Password then follow the steps given in this Apple Article -> If you forgot your Apple ID password - Apple Support

If you do not remember the Apple ID then follow the steps given in this Apple Article -> If you forgot your Apple ID - Apple Support

If you are the owner or the owner has shared all information with you then to open Activation Lock:- If it is Activation locked, read here --> Turn off Activation Lock - Apple Support Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Learn how to remove a device from a previous owner's account.

If you are not the rightful owner of this iPhone and do not possess the associated Apple ID and password, there is absolutely no way to gain access to the device. Apple’s security framework is designed to prevent unauthorized use, so the only circumstance in which you could unlock the phone is if the original owner willingly provides their credentials. In rare cases, access might become possible if the owner unintentionally removes the device from their Apple ID account, but this is purely accidental and not something you can rely on. In essence, without the Apple ID and password, the iPhone remains permanently tied to its legitimate owner.

Carrier Lock:- Request your iPhone’s original Carrier to unlock your iPhone and if they agree and do it, then you may know the further process here --> How to unlock your iPhone for use with a different carrier ...

To be able to use any SIM across the globe you must have "No SIM Restriction" against Network Provider Lock. Please refer to the pic below.

Carrier Lock:- Request your iPhone’s original Carrier to unlock your iPhone and if they agree and do it, then you may know the further process here --> How to unlock your iPhone for use with a different carrier ...

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