S23 network randomly locks

[Damien47]

My S23 FE randomly network locked itself about a week ago and now I can't use any Sim from any carrier but I can still use the phone and connect to wifi and everything else except connect to a mobile signal service because it ask for a MCK unlock code and it's weird because the screen that comes up says too many incorrect attempts but I haven't entered anything. At least I can still use the phone I guess.

[MrGhoul · Accepted solution]

In order to connect to your mobile carrier:

MCK (Master Control Key): You will need the specific Master Control Key code from the original carrier to unlock your device.

Contact the cellular service provider that originally sold the phone to request the MCK code.

You may need to provide the phone's IMEI number and proof of purchase or account details to receive the code

If your carrier can’t help (common with second-hand phones), Samsung may be able to assist, by Contacting samsung support and asking them if they can supply or help you with getting the Master Control Key code for your phone.
Tap the link below for samsung support.
https://www.samsung.com/us/support/contact/

[Damien47]

I got this phone from Amazon about a year ago and I've had Boost Mobile and now Visible by Verizon both, both worked fine.

[MrGhoul]

Here is an detailed article on MCK (Master Control lock). In order to connect to your mobile carrier, I recommend you follow the guidance within this article.
https://unloky.com/unlock-guide/samsung-mck-unfreeze-code

[SSpacechase]

Same but another carrier ..

[poolofpromises]

THIS SHOOULD NOT BE HAPPENING EVER