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How to SIM Unlock Samsung Galaxy Phone

SIM is the abbreviation of the Subscriber Identity Module, also known as smart card or the user identification card. All Samsung Galaxy phones must be loaded with SIM before they can be used. It's no exaggeration to say that SIM are our passes for mobile phones. Without the SIM card, we would not be able to access our phone.

But what should you do if your SIM is locked? In general, SIM lock is mainly due to you having entered the wrong PIN password more than three times, and the SIM will be locked automatically. In this case, how do you unlock?. I recommend you to use Dr.fone toolkit - Android SIM Unlock.

Dr.fone toolkit - Android SIM Unlock provides you with the fastest way to unlock the locked SIM. The process is simple, and the steps are understood and mastered by anyone. It will only unlock your SIM without damaging any of data. So your data will be in good condition. In addition, it supports a variety of Samsung Galaxy phones, such as Samsung Galaxy, Note series, Samsung Galaxy S series, Samsung, Galaxy Tab, Samsung Galaxy A and so on. Compared with other software of the same type, it has the advantages of high efficiency, safety and simplicity.

And for different types of Samsung Galaxy phones, the steps aren't exactly the same. Next, I'll show you how to use Dr.fone toolkit - Android SIM Unlock to unlock Samsung Galaxy phones.

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One Click to SIM Unlock Your Samsung Galaxy Phone


Step 1. Connect your Samsung Galaxy phone

Download, install and launch Dr.fone toolkit for Android on your computer. Then, select SIM Unlock among all the toolkits.

Next, connect your Samsung Galaxy phone to the computer via a USB cable. Please make sure you have opened USB debugging on your phone.

Tips: If your Android os version is above 4.2.2, there will be a pop up message on your phone. Tap on Yes to allow USB debugging on your device.


Step 2. SIM unlock your Samsung Galaxy phone

Part 1. For Samsung S2~S4, Note 1~Note 3

Dial *#0808# or ##3424# or #9090# on your Samsung Galaxy phone. One of the 3 will work on your model and you will enter USB Settings / Diagnostic / Service Mode.
When you are in Service Mode, you can choose the DM + MODEM + ADB or UART[*] or CDMA MODEM option, and then hit "Unlock".

Then, the program will begin to SIM unlock on your Samsung Galaxy phone, which will take a few minutes, and please do not disconnect your phone from your computer.

When your Samsung Galaxy phone is successfully unlocked, your phone needs to drop out of "Service" mode. So you need to enter *#0808# or ##3424# or #9090# on your phone and select MTP + ADB or USB[*] or PDA in the menu.
Then click on "Next", your phone will enter normal mode and now it's successfully sim unlocked.


Part 2. For Samsung Galaxy S3~S7

When your phone is connected to the program, the program automatically identifies your phone, and then you need to click the "Unlock" button. The program begins to unlock your SIM card. When this happens, your phone will restart once. Please do not interrupt the connection between the phone and the computer throughout the process.


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