Unlock Samsung Galaxy Ace 3 S7278 GT-S7278

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Unlock your samsung device via USB cable - more info

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Informations Dial *#06# to see your Imei, If your device have 2 IMEI numbers please enter only firstone. After saving your Imei number, remember to add it to your basket.

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4.94/5 - 302 reviews

Unlocking Samsung Galaxy Ace 3 S7278 GT-S7278 by code is very easy, it is also safest method of unlocking your phone permanently. Your phone will be always unlocked even after each new updates of your phone firmware. Removing simlock from phone by code does not result in void of warranty and this is the manner provided by the manufacturer.  After unlocking you will be able to use your Samsung Galaxy Ace 3 S7278 GT-S7278 with any network in country or abroad. Unlocking code details will be send to you by email.

To get unlocking code for Your Samsung You need to provide IMEI number of Your Samsung phone. Type *#06# on the screen or remove battery from Your Samsung to check IMEI number. IMEI is written on the information label.


A phone with a locked counter (when 3x wrong code is entered) will always request a code. After entering the correct network code (NCK), a failure message will appear. Therefore, in rare cases, the Unfreeze/Defreeze code (MCK) is required which will reset the counter. Some of the services provide only the NCK code (please read the description of the selected service).


How to enter unlocking code for Samsung Galaxy Ace 3 S7278 GT-S7278:

1. Insert foreign (Unaccepted*) Sim card ( enter pin number if required)

2. Your Samsung Galaxy Ace 3 S7278 GT-S7278 should ask for SIM network unlock PIN

3. Enter NCK (Network code) received from mobileunlock24.com

4  The phone is now unlocked


*NOT ACCEPTED : means, to use a sim card from a network other than the network your Samsung is locked to.


When counter is blocked (someone entered 3 times wrong code):


1. Insert foreign (Unaccepted*) Sim card ( enter pin number if required)

2. Your Samsung Galaxy Ace 3 S7278 GT-S7278 should ask for SIM network unlock PIN

3. Enter MCK (unfreeze, defreeze) code (unsuccessful message may appear)

4. Enter NCK (network) code

4  The phone is now unlocked


*NOT ACCEPTED : means, to use a sim card from a network other than the network your Samsung is locked to.



MCK=UNFREEZE/DEFREEZE - code counter reset code

RGCK- Region lock code

In these methods you should replace NCK/MCK by unlocking code you received from mobileunlock24.com 


Before you order unlocking code check if your phone is locked: (Insert foreign (Unaccepted) Sim card and when phone will ask for unlock code it means is locked.



Frequently asked questions:


How does a phone unlock work?

Mobile unlock is performed by entering on your phone the unique code, provided by our site. The process itself is quick and simple, just like counting to three. After completing an order, the customer will receive the unique code by email, accepted by both customer's phone producer and service provider. The IMEI number is required to complete the order. The easiest way to find your IMEI number is to enter *#06# on your phone. Upon entering the unique unlock code, your phone's simlock will be turned off. A single code turns off the simlock permanently. It will not appear again, even durning software updates and while changing SIM cards. The remote unlock is completely wireless and does not require installation of any additional software. The mobile unlock by code is the easiest way to remove limits of your phone.


Is it safe to remove the blockade of Samsung Galaxy Ace 3 S7278 GT-S7278?

The removal of limits (that were created by the mobile network's operator), by entering the unique unlocking code, is prepared by your phone producer, so it is tested, safe and effective way of unlocking your phone. It does not require any technical knowlage and it does not modify your phone in any way.


Does the simlock removal will cause a loss of warranty?

Removal of your phone's limits does not cause a loss of warranty. The metod of unlocking a phone by code was provided by the phone producer and it doesn't have any influence on the warranty. All the phones leaving a factory do not have any blockades. The limits are created by the mobile network providers. By deleting this limit you are restoring your phone to a factory condition.


Is it possible to remove the blockade of Samsung Galaxy Ace 3 S7278 GT-S7278 for free?

No, the unlocking the newest phones is not possible by using free methods. Phone manufacturers and mobile network providers have additional profits from selling the unlock codes. The easiest and the most effective way of unlocking a phone is to use a code provided by phone manufacturer or mobile network provider. Each phone require a diffrent code, which is assigned to its unique IMEI number. Using free code generators or a code assigned to a diffrent IMEI number will cause a block of the register. It may cause higher unlock costs or a permanent blockade.


Is it possible to remove a simlock in any mobile network?

Check Available network/ country from the list.


What if there will be no code for my phone?

If we have no code for an IMEI number, the customer will receive a full 100% refund.


After saving your customized product, remember to add it to your cart.


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All of the Samsung models manufactured from July 2013 and the devices running on Android 4.4 (KitKat) or above have REGION LOCK.

If the phone was already used in the original network provider lock is not in force. Otherwise, your phone is locked and you can not unlock it even with the correct codes.

If you can not make a connection from a given reguion where the phone has been bought, then we can send the RGCK code (region lock code). For this purpose, please find the service on the product page and place the order: - -Region Lock release codes, supported devices from Europe, America & Asia: MCK(pin) + RGCK(puk) 1 - 5 days

If you have the option to do a phone call, activate the phone in the network where you bought it (or in the region of Europe, for example, if the phone is from such a distribution). The lock will be removed automatically after making a phone call to another mobile or landline number (over 5 minutes)

Please remove region lock before using network unlock codes.

* Lock is assumed by operators from the United States, Europe and Australia

* The operators of Canada does not assume a regional block.


Info on the Device box:

How to unlock / remove  FRP Google Account activation on your {META_TITLE} ??

Our service will  allows you to Bypass / remove FRP or factory reset protection in your device. Factory Reset protection FRP is a security feature that locks the device when factory reset is performed. You need to enter same Google Account details after factory reset. This keeps the thieves away. But sometimes you need to remove FRP because you forget your Google account, you got phone from your friends or family member. So this solution can help you in this case. Supported are all samsung models and any software version all security updates. After  unlock you will be able to set new account and configure your phone.

The ability skills to install software and drivers are required.

We have to recive from you also your computer name. Check how To get computer name:

Use Win Key + E to open my computer, right mouse click on my computer, select preferneces.

You have to also:

Download and install samsung drivers - download link

Download  and  install Flexihub  - download link

How to Remove / unlock bypass FRP activation on {META_TITLE}:

1. Orders are proccessed from monday to Saturday (9 - 22 GMT+0 Europe time zone)

2. Reset your {META_TITLE} to default settings ( by recovery mode) To check phone imei number check sim tray, or back cover (imei will be avalible on the back in most of models) or if you have access to phone menu check settings. If you can't read imei, use: 000000000000000 to place order.

3. Install samsung usb drivers

4. Install Flexihub software, as a login  details you will get from us special token

5. Connect your phone by USB cable to your computer, open Flexihub and insert token as a login details. On your phone  you should seen screen:

6. Send to us your computer name and keept connected phone to your PC. When we will unlock your phone you will get from us email with confirmation, and you will see on your phone:

7. Now you able to set new account and use phone again.


Apr 23, 2021
Foarte multumit


Apr 13, 2021
Tudo ok


Apr 6, 2021
Super 2 óra alatt kaptam meg a kódot.


Mar 22, 2021

أريد كود تشغيل الشبكة


Mar 6, 2021
Totul OK!
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