iPhone 12 Pro Max Network Error

Hi! I bought a used 12 pro max in October, and everything were Ok, until once it has restarted itself, and said "cellular data update failed". I had no cellular, no WiFi, no Bluetooth. All of them were greyed out.

I could fix it by connecting to Mac and update, but since this occasion, this problem comes up many times.

The phone is not blacklisted, I checked it.


Any solution?


Thanks in advance :)

iPhone 12 Pro Max

Posted on Feb 17, 2022 1:03 PM

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7 replies

Feb 17, 2022 1:38 PM in response to hunor96

Check first the range of the mobile network, see this Apple article: If you see No Service or Searching on your iPhone or iPad

If you see No Service or Searching on your iPhone or iPad - Apple Support


Check also the Wi-Fi network, see the following Apple articles:

Connect to Wi-Fi on your iPhone, iPad, or iPod touch

Connect to Wi-Fi on your iPhone, iPad, or iPod touch - Apple Support


If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network

If your iPhone, iPad, or iPod touch won't connect to a Wi-Fi network - Apple Support


Recommended settings for Wi-Fi routers and access points

Recommended settings for Wi-Fi routers and access points - Apple Support


If you need help with your Wi‑Fi password

If you need help with your Wi‑Fi password - Apple Support


If they are On, turn Off Hotspot & VPN.

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iPhone 12 Pro Max Network Error

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