Samsung Carrier Relock Unlock Service – What You Need to Know

Many modern Samsung devices (Galaxy S22/S23/S24/S25 series and Z Fold/Flip models) are sold as “officially unlocked,” but in reality some were only temporarily unlocked using a method commonly referred to as Samsung Carrier Relock.

This page explains what Carrier Relock is, how to check a device before you buy, and how you can order our country-specific relock unlock service directly from this page.

What Is Samsung Carrier Relock?

Samsung Carrier Relock is a method used to make certain Samsung phones appear unlocked. In many cases, it is not a true factory unlock.

The Current Problem with Samsung Carrier Relock

The issue is simple but serious:

• After a system update, firmware flash, or factory reset, the unlock can be lost.
• Once that happens, the phone becomes locked again to its original carrier.
• Because some official unlocking options are no longer available, relocked devices can be difficult or impossible to unlock using older methods.

This leads to problems for buyers and sellers who unknowingly advertise these devices as “fully unlocked.”

How to Check If a Samsung Device Is Safe Before Purchase

To reduce risk before buying, you can verify using the SamFW IMEI Check:

1. Visit samfw.com
2. Go to Other Tools > IMEI Check
3. Enter the device IMEI
4. Review the Region field

• ✅ Safe: Region matches the original carrier/region.
• ❌ Risk of relock: Carrier shows XAA but Region is XAU / TMB / CHA / CCT / DSH (device may be temporarily unlocked).

Our Solution: Country-Specific Relock Unlock Service (gsm supporters)

At gsm supporters, we provide a Relock Unlock Service for supported Samsung models. This is NOT a factory unlock. Instead, it enables permanent SIM usability in the specific country you choose.

How it works

• ✔ Works with all SIM cards from the country you choose.
• ✔ Safe for updates / factory reset / firmware flash (unlock remains for the selected country).
• ❌ Will NOT work with SIM cards from other countries.

Important: Because the unlock is country-specific, you must confirm the correct country before ordering.

Supported Samsung Models

Galaxy S Series

• SM-S938U (S24 Ultra)
• SM-S937U (S24+)
• SM-S936U (S24)
• SM-S931U (S23)
• SM-S928U (S25 Ultra)
• SM-S926U (S25+)
• SM-S921U (S25)
• SM-S721U (S22 FE)

Galaxy A Series

• SM-A366U
• SM-A266U

Galaxy Z Series

• SM-F966U (Z Fold 6)
• SM-F956U (Z Fold 5)
• SM-F756U (Z Flip 5)
• SM-F741U (Z Flip 4)

Galaxy Tracfone Models

• SM-S366V
• SM-S266V

Warnings & Recommendations

• Double-check the country you want before placing the order.
• If device shows Carrier = XAA, ask the seller to flash the correct XAA firmware (where applicable).
• Hold sellers accountable if they advertise “factory unlocked” but the device relocks after flashing or reset.
• Be cautious with shops that do not explain the temporary unlock/relock risk.

How to Order (Directly From This Page)

Place your order using the service options on this page and provide the required information at checkout.

Required order details

• Model number (example: SM-S938U)
• IMEI (or IMEI1)
• Target country you want the phone to work in

If you are not sure which country to select, do not guess—contact support before ordering.

Final Thoughts

The safest choice is always a true factory unlocked Samsung device. But if you already own one of the supported models, our Relock Unlock Service is a reliable solution that keeps your phone usable in your chosen country—even after updates and resets.

At gsm supporters, we believe prevention is better than cure: stay informed, check devices before buying, and only trust permanent unlocking solutions.