topic Re: S23 network randomly unlocks in Galaxy S23

S23 network randomly locks

Damien47 — Sat, 18 Apr 2026 20:38:44 GMT

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.

Re: S23 network randomly unlocks

MrGhoul — Fri, 17 Apr 2026 07:28:08 GMT

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/

Re: S23 network randomly unlocks

poolofpromises — Fri, 17 Apr 2026 05:38:58 GMT

THIS SHOOULD NOT BE HAPPENING EVER

Re: Re: S23 network randomly unlocks

Damien47 — Fri, 17 Apr 2026 05:47:34 GMT

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.

Re: Re: Re: S23 network randomly unlocks

MrGhoul — Fri, 17 Apr 2026 07:05:37 GMT

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