If you're wondering how to unlock an ineligible ATT phone, you should be aware of why SIM cards can be locked.
SIM card locking or Network locking is a restriction built into GSM and CDMA smartphones by either service providers or smartphone manufacturers to limit the use of the device in certain regions or limit access to other network services. They can program their smartphones to receive only certain:
Mobile country code (will only work in one / predefined country).
Mobile Subscriber Identification Number (MSIN only accepts certain SIM cards).
Mobile network code (only accepts the network provider).
The main reason network providers block SIM cards is that service providers offer phones at discounted prices and sell their service limited so that customers use only their specific network so that service providers can get the discounts they were offering and new profits from users accessing their services. This method can increase the number of customers for both smartphone manufacturers and service providers. Thus, they come together to implement a business model.
Steps to eliminate SIM card network unlocking on Android devices.
There are 4 ways in which you can unlock a SIM card. They are all based on the software you can try on your Android device.
Important:
The device must be Android. And the Android version must be newer than Android 5.0.
There must be enough storage space in the internal memory of your Android device.
Downloading from "unknown sources" must be enabled if you download apps from sources other than Google Play.
Method 1. Using the "Android SIM Unlock" software.
Download and install the software.
Turn on USB debugging on your smartphone, connect it to your PC via a USB cable, and
Click "Next."
Set your Android device into maintenance mode or diagnostic mode. The code to enter this mode: ## 3424 # / * # 0808 # / # 9090 #. Then select M + MODEM + ADB or UART [*] on the device and press "Next." It will bring you back to normal mode.
To download Android SIM Unlock, click here.
Method 2: Using the GalaxSim Unlock software.
Download the app from Play Market.
Launch the app and check the current status of your phone (locked or unlocked).
Tap to unlock the phone.
Wait for the software to unlock your device.
Once the process is complete, you have successfully unlocked your Android device.
Method 3: Using "Unlock your phone fast and secure" (paid).
Download and install the software on your device.
Fill out the form created by the app. It is the data about your device, such as IMEI number, network, phone model, etc. And click "Submit."
Pay using available PayPal payment cards, credit cards, or debit cards.
You will receive your smartphone unlock code by email. Using the code, you can unlock the device.
Method 4: Using "ATT-SIM-Unlock" (preferable)
https://attsimunlock.com/ is a trustworthy website that provides premium unlocking services for SIM card phones. All you need to do is to Visit this authoritative site.
Fill out the form. It contains information about your phone.
ATT-SIM-UNLOCK service will send you the unlock code via email or to your phone number. Use the code to unlock your device.
Conclusion
Unlocking your phone is almost universally legal, so you don't have to worry about the consequences. Just try any of the above-mentioned methods.
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