By Selena KomezUpdated on May 23, 2018
With the development of science and technology,more and more mobile phone are adding the SIM card lock function.Even with the best protection on your smartphone SIM card,someone could simply remove your SIM card-which holds your phone number, security data, billing information.You can protect SIM data that no one can access it without enter the PIN of your SIM card on Android device.
A SIM card PIN:A SIM card typically comes with a default PIN, but it’s not used for locking purposes.The SIM card has an associated PIN Unlock Key (PUK).If you attempt to do a SIM PIN Lock, and you fail to guess the original PIN, the SIM will be locked with the PUK. If you run into this situation,you must be annoy to unlock your Android SIM card when you forget the SIM PIN.
Not all Android are SIM locked.To confirm if yours is,you can begin by checking the documentation for the device. If the word “unlocked” appears on the initial device, you can be largely certain that it is SIM locked.But if you’ve find that your Android phone is locked to the SIM card, how can you unlock it without the PIN?
If you are not sure whether your phone is SIM locked, the easiest way to check is using a SIM card from a different carrier and see whether the phone accept the new SIM Card.
Android SIM Unlock Tool is the super rescuer for you to unlock Android SIM card without data loss,it provide you a fast way to unlock your Android phone with simple process.Android SIM Unlock Tool analysis the locking principle on the SIM card and then choose different unlocking method for each device.The program will not affect any data on your device,your data is completely safe.It work well with almost all models of Samsung devices,like Samsung Galaxy S9/S9+/S8/S7/S6,Note 8/5/4/3.Fast and efficient service,totally worth have a try.
Firstly launch Android SIM Unlock Tool on your computer and select Android SIM Unlock from More Tools tab.
Step 1. Connect Android Device with Computer
To get started,connect your Android phone to the computer with an USB cable.Make sure you have enabled USB Debugging mode on your device.Then Android SIM Unlock Tool will detect your device automatically.
Click on Next to go on.
Step 2.Enter USB Settings/Diagnostic/Service Mode
Follow the instructions on the program interface to enter USB Settings/Diagnostic/Service Mode on your Android phone.
Dial *#0808# or ##3424# or #9090# on your Android phone.Normally one of these will work for your phone.After you input one of the numbers and symbols,the phone will automatically enter USB Settings/Diagnostic/Service Mode.
Select DM + MODEM + ADB or UART[*] or CDMA MODEM on the phone.After the phone is set properly,click on Unlock.
Step 3.Unlock Android Phone
After you click on Unlock,Android SIM Unlock Tool will start to SIM unlock your phone.Just wait for a few seconds to complete.
Note:The phone will need to be set back into normal mode after it’s unlocked.Just click on Restore Mode on the program to continue.
Step 4.Restore Android to Normal State
To restore the phone to normal state,dial *#0808# or ##3424# or #9090# on your Android phone and select MTP + ADB or USB[*] or PDA on the hidden menu.
Then click on Next,your phone will enter normal mode and now it’s successfully SIM unlocked.
Note:The unlocking process for Samsung Galaxy S5-S7 devices is simpler.But to successfully unlock these devices,please make sure you have rooted your devices first.
Firstly launch Android SIM Unlock Tool on your computer and select Android SIM Unlock from More Tools tab.
Step 1.Connect Android phone with Computer
For rooted devices,please connect your phone to the computer using USB cable.Android SIM Unlock Tool will automatically detect your phone.
Click on Unlock to continue.
Step 2.Unlock Android Phone
After clicking on Unlock,Android SIM Unlock Tool will automatically SIM unlock your phone.All you need to do is waiting for about a few minutes till the process complete.During the process,your phone will restart once.Please don’t disconnect your phone with computer until the unlock task is finish.
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