In 2024, Network Locked SIM Card Inserted On Your HTC U23 Phone? Unlock It Now

Network Locked SIM Card Inserted On Your HTC U23 Phone? Unlock It Now

Carriers provide cellular connections so you can access the Internet, send text messages, and make phone calls without Wi-Fi. You cannot escape the carriers once you begin using a cell phone.

Customers can purchase a new handset via carriers or the mobile phone market. You may need an unlocked phone if you wish to use a different carrier’s service on your smartphone. However, if you want a gadget linked to a specific SIM card, you may buy one from the carriers for a reduced price.

Part 1: What Does It Mean If Your HTC U23 Asks for SIM Network PIN?

When your phone prompts you to enter a SIM Network Unlock PIN, it means that your device is currently locked to a specific mobile network carrier, and it can only be used with SIM cards from that carrier. This locking mechanism is usually put in place by the carrier or the phone manufacturer to ensure that you continue to use their services, typically for the duration of a contract. As a result, your phone cannot be freely used with SIM cards from other carriers until it’s unlocked using the correct PIN or code.

Part 2: Why Does Your HTC U23 Say Invalid SIM Card – Network Locked SIM Card Inserted?

System Errors

Since SIM locking is a smartphone restriction implemented to stop it from being used on other networks, Android system errors can cause network-locked SIM cards. Resetting these errors can help unlock your network locked SIM card inserted device. Service providers decided to provide a formal SIM unlocking option as a result.

Because of this, any locked SIM may be readily unlocked, and once a device opens, it can work like a conventional mobile phone and with any SIM card of the user’s choosing.

Carrier Lock

The consumer must stick with the same service provider for a specific time after purchasing the bundled device and data pack. This is called a carrier lock on the HTC U23 device and is one of the most common errors in network locked SIM card inserted devices. During that time, the HTC U23 device will be network- or SIM-locked, prohibiting the user from changing service providers.

The user cannot change the SIM. The service provider will offer the SIM Unlock code needed to unlock the handset when the contract expires. The gadget can be used with any other SIM card and exported to another country without problems when the network lock has been removed.

Region Lock

Apple and AT&T initially worked together to implement the SIM lock and the SIM locked devices. The original purpose was to force the user to continue using the same service provider in a specific area or time.

However, some telecom service providers sell the handsets with select data plans as bundled plans in collaboration with the HTC U23 device manufacturers. As a result, the handset will cost less than it would otherwise. Sometimes, these offers are particular to a specific region, called a carrier lock.

Firmware Problems

Sometimes, the HTC U23 device manufacturers release many versions of the same firmware for different geographical locations.

As a result, it may be possible that the user may face contradictions in the agreement of device firmware and the network-locked SIM card that was supposed to be used on the HTC U23 device. Due to firmware problems, the users may also face a network-locked SIM card-inserted device.

Part 3: How to Unlock Network Locked SIM Card Inserted?

Unlocking a network-locked SIM card may seem like a complex task. However, it can be a straightforward process if you follow the right steps. In this section, we will guide you through the process of unlocking your network-locked SIM card. We will discuss 3 different ways you can unlock a network-locked SIM card inserted:

Method 1. Contact Network Carrier to Unlock Network Locked SIM

Contacting your network carrier is often the most recommended choice. It is a straightforward and reliable method to unlock your network-locked SIM card. Unlocking your network-locked SIM card through your carrier is a reliable and legal method. Before contacting your carrier, get information like your device’s IMEI number and account details. There are several ways to get in touch with your network carrier’s customer support.

You can call the customer support hotline, visit the website, or go to a physical store. The process usually involves receiving an unlock network code, which you need to use. Once you’ve entered the unlock code, your phone should display that it’s now unlocked. Test it with the new SIM card to ensure that it can make calls, send texts, and access mobile data without any issues.

Method 2. Use Online Unlock Service to Unlock Network Locked SIM

There are many online services available for unlocking a network-locked SIM card. In case you don’t want to go through your network carrier, these can be a good alternative. These services employ the IMEI number of the HTC U23 device to unlock smartphones.

One such service is Canada Unlocking , which offers to unlock your network-locked SIM card via email. Follow these steps to unlock a network-locked SIM card via online services:

Step 1: Use a web browser to access an online SIM card unlocking service like Canada Unlocking. On the main page, choose your network carrier or device brand.

Step 2: Follow it by providing the IMEI number of your device. Afterward, make the required payment, and you will receive the unlock code via email.

Method 3. Repair Your HTC U23 Firmware If Your Unlocked Phone Suddenly Network Locked

Coming across “Network Locked SIM Card Inserted“ doesn’t necessarily mean that your SIM card is network locked. It can also happen due to a system bug or glitch. This can be the case if you suddenly face this issue after recently updating your device. In such scenarios, you need a reliable Android system repair tool like Wondershare Dr.Fone.

With this tool, you can repair Android OS system issues such as black screen of death, apps crashing, and many more. It supports over 1000 Android models across all major Android brands for system repair. Below are the steps you need to fix the network-locked SIM card issue:

Step 1: Download and Connect Wondershare Dr.Fone

First, download Wondershare Dr.Fone from its official website. Install the software on your system and launch it to proceed. Establish a connection between your Android and the system using a USB cable. Furthermore, access the “Toolbox” section and select “System Repair” to move forward.

Step 2: Add Your HTC U23 Device Details

After selecting “System Repair,” you will proceed to a new window. Here, choose the “Android” button and proceed to the next screen to select “Start.” Now add your device details like “Brand”, “Name,” “Model,” “Country,” and “Carrier.” Then, checkmark the “I agree with the warning and I am ready to proceed” box from the bottom right corner and click “Next.”

Step 3: Solve the Network Locked SIM Card Inserted Issue

Now, you need to put your Android device into Download Mode. You can follow the instructions given on the screen for it. As soon as the HTC U23 device is in Download Mode, Wondershare Dr.Fone will start downloading the firmware. Once it is downloaded and verified, click “Fix Now.”

Confirm your choice by inserting “000000” in the pop-up dialogue box and tap “Confirm.” It will start the Android repair process to fix all system issues.

Bonus Tip. How to Unlock Network Locked Sim Card Inserted on iPhone?

If you want a fast and easy method to unlock your network-locked iPhone, you can use a third-party tool such as Dr.Fone – Screen Unlock (iOS). It is the best sim-unlock tool for iPhone users. It enables users to safely unlock their devices within five minutes. With Dr.Fone, you don’t have to wait for the sim-unlock code or reset your device firmware that can remove all your data.

You can download Dr.Fone on your PC and use it to unlock your iPhone without data loss. You can also use Dr.Fone to unlock your iPhone’s screen lock and Apple ID. Although Dr.Fone is a one-stop solution for all of your phone-related problems, its sim-unlock only works for Apple devices. Here is how you unlock your carrier-locked iPhone with Dr.Fone – Screen Unlock (IOS).

Download and install Dr.Fone on your PC. Launch the application and select the “Screen Unlock” tab from the list on the homepage.

Now, click on the “Remove SIM Locked” tab on the next page. You can only use it to unlock iPhones.

Connect your iPhone and PC with a USB cable. Once your device is ready, click on the “Start” option to proceed with the sim unlock process.

Next, the system will detect the HTC U23 device connection, then its information will show up on your PC screen. If all of it is OK, click on the “Unlock Now” option.

You cannot unlock your iPhone without a jailbreak, so you must do it before the system unlocks it. You can learn about the jailbreak process via the guide, or watching the video provided by Dr.Fone to jailbreak your iPhone is also feasible. The process is compatible with devices running iOS 12 to iOS 14.8.1.

Now, you have to complete three tasks on your iPhone. First, put the SIM card out of your device. Open “Settings” and tap on the “WIFI” option. Tap on the blue exclamation mark next to all the connected networks and select “Forget This Network.” Now, switch off the “WIFI” and insert the locked SIM card in your iPhone. Click on the “Continue” option on your computer.

After that, Dr.Fone will automatically start the SIM unlocking process. You can see its progress on your PC. The process only takes a few minutes to complete, so you don’t have to wait for a long time.

After the process ends, all the sim restrictions on your iOS device are now removed and you can use sim cards from any network carrier. Next, click on the “Done” option to end the sim unlocking process.

Part 4: Why is SIM Unlocking Important?

As previously stated, a SIM lock enables a service provider to stop a customer from using the smartphone with the SIM cards of another service provider. This guarantees that the HTC U23 device is only being used with the original SIM card for each provider. This locking also has a lot of drawbacks because it is incompatible with any other SIM card.

The phone cannot be used with other SIM cards if the SIM lock is enabled. Customers must therefore adhere to the current plan as is.
Since nobody wants to purchase a locked phone, it is hard for someone to sell or gift the mobile.
Traveling abroad with a SIM-locked phone could provide some challenges because you won’t be able to use a local SIM card on the phone while you’re there.

All the problems can be fixed, and the SIM works in any nation with the removed SIM lock.

Conclusion

Any of the methods above can work to get around the prohibition against using other SIM cards with your Android handset. The best thing about using Dr.Fone-Screen Unlock is that you don’t need unlocking codes to complete the tasks.

Easily Unlock Your HTC U23 Device SIM

Is your Android phone SIM locked? Having an unlocked device can have its benefits but most of the time most people don’t even know whether their device is SIM locked or not. In this article we are going to address this issue. We are going to begin by helping you find out whether your phone is locked or not and if it is, how you can sim unlock the HTC U23 device and enjoy the benefits of an unlocked phone.

Part 1: How to Know if your Android is SIM Locked

It is important to note that not all phones are SIM locked. You can find out if yours is by checking the HTC U23 device’s documentation. If you see the words “unlocked” on the initial receipt then you know that the HTC U23 device is not SIM locked.

Another easy way to find out is to ask your carrier if the HTC U23 device is locked on to their network. You can also just try inserting another carrier’s SIM into your device. If it doesn’t work, you will know that the HTC U23 device is SIM locked.

If you bought your device from a third party re-seller such as Amazon you are more likely to be in possession of an unlocked device.

Part 2: How to SIM Unlock your Android Device

If you find that your SIM is locked, here’s a few things you can do to unlock the HTC U23 device.

Avoid all of the apps on the Google Play Store that promise to unlock your device, most of them don’t work and may even harbour a lot of Trojans and malware that will cause further problems for you and your device.

There are safe and very legal ways to unlock your device. Just try one of the following.

Ask your Carrier to Unlock your Device

This is the best option when you want to safely unlock your device. By February 2015, American cell phone owners got the option to request their carriers to unlock their device for them. Before that the law didn’t allow for carriers to unlock SIM cards in the United States. This unpopular law was reversed following a similar move by the European Union in 2013. The same law also requires that the carriers inform customers every month whether their device is eligible for unlocking.

If your device is eligible for unlocking, all you need to do is contact the carrier provide and request for the sim network unlock pin . But if your Smartphone was bought on a contract, you may need to pay a termination fee to break the contract of you want to unlock the HTC U23 device before the contact term expires. For Smartphones that are not on contract, you have to wait 12 months from the date of purchase and ensure that your bill is paid before the carrier can give you the unlock code.

How to Unlock your Android Phone

To begin with, you need to confirm your IMEI number. Dial *#06# on your device and the IMEI number will appear on the screen. Copy this number to a secure location or wrote it down somewhere.

The next step is to find a reputable service that will unlock your Android device for you. This is action you should take only if you are absolutely desperate and your carrier can’t unlock your device for you. This is because many of these sites are unregulated and many of them are not reliable.

You should also know that many of them will charge a certain amount for your service. You can try https://www.safeunlockcode.com/ which is one of the more reputable ones we have found.

You will need to enter the IMEI number as part of the information you need to provide before they can unlock your device.

Part 3: Troubleshooting Android SIM Unlock

There are lots of issues you may face when you try to unlock your device. The following are just some of the troubleshooting actions you can take if you encounter these problems.

Unlocking Code Fails to work

If you asked your carrier to unlock your device for you, chances are that they sent you a code. If the unlocking code fails to work double check that the IMEI number you used is the correct one and ensure that you purchased that device from that carrier and then try again.

Samsung Device Freezes during unlocking

If your device freezes during the unlocking process it typically means that you entered wrong unlocking code too many times. In this case you need to contact the carrier for a Master Code.

My LG device won’t unlock

There are some LG models that cannot be unlocked. These models include LG U300, LG U310, LG U8180, LG U8330, LG U8120, LG U8360, LG U8380, LGU880, and LG U890. If your device is one of these it can’t be unlocked by your carrier. You may need to look into other ways of unlocking your device.

Ways To Find Unlocking Codes For HTC U23 Phones

When you have a locked device, it is pretty much impossible to move from one network to another. This would cause problems if for instance you wanted to travel outside the country and want to switch to that country’s carrier for the duration of your stay. Or maybe you just want to switch carriers because you don’t like your current provider.

Whatever the reason, you should be able to unlock your device easily. But this has often proven difficult because of the fact that you need unlock codes. The problem is that many sites promise free unlocking codes for your device and many turn out to be fraudulent sites that use the word “free” in their advertising but actually require you to pay for the service. If you have been unsuccessfully searching for free unlocking codes for your device, look no further. This article compiles three of the best for Android and iPhone.

Part 1: 3 Ways to Find Unlocking Codes for Android Devices

1. Unlock it Free

Website URL: http://www.unlockitfree.com/

This site does exactly what it says it will do- unlock your device for free. It offer a great unlocking service especially for Nokia devices. It is also very easy to use. All you have to do once you’re on the homepage is enter the model number of your device (this is typically the number or code that follows the name of the HTC U23 device) and then click “find”

In the next window, you will be required to enter your IMEI number, phone model, country and provider. You can get your IMEI number by dialling *#06# on your device.

Once you have entered all the details correctly click “Generate” and the website will give you seven different codes to unlock your device.

Use the first one. If it fails to work, try the last code. 80% of people unlock their devices with either the first or the last code. Of this doesn’t work either, try 2 more. But don’t enter more than 4 codes as this will disable your device.

2. Trycktill

Website URL: http://www.trycktill.com/

This one is more a website for mobile content but it can also generate free mobile unlocking codes. Click on “Unlock” on the top bar menu to begin. The site is in Swedish so may want to translate it before you can use it. You can do that by clicking on the British Flag at the bottom of the page.

Select your phone model from the drop down menu and then select the model number and enter the IMEI number. Finally, agree to the terms and conditions and then click “Generate Code.”

In the results page you should see a code as well as instructions on how to use it to unlock the phone. The codes and instructions will differ slightly depending on the HTC U23 device model.

This website unlocks LG, AEG, MAXON, Nokia, Panasonic, Vitel and Siemens devices.

3. NokiaFree

Website URL: http://www.nokiafree.org/

Despite the website name and its URL, this site doesn’t just unlock Nokia devices. It can unlock a lot of other devices as well. You can use it online or download the software which supports more brands.

Once you have downloaded the software, launch to on your computer and then provide the required information, the IMEI number, your Phone model and make, country and service provider. Then click on “Calculate” and the program will generate unlock codes for you and how to use them.

Dr.Fone - Screen Unlock (Android)

Unlock Your HTC U23 Device in a Flash

Pattern, PIN, password, fingerprints & face screen lock can all be unlocked.
Bypass Android FRP lock without a PIN or Google account.
Unlock mainstream Android brands like Samsung, Huawei, LG, Xiaomi, etc.
No tech knowledge required, Simple, click-through, process.

3,981,454 people have downloaded it

Part 2: 3 Ways to Find Unlocking Codes for iPhones

For iPhone users there is a way to get unlocking codes for free. This is a new form of payment known as TrialPay. The following three sites offer you the chance to trade tasks for unlock codes.

1. Free Unlocks

Website URL: https://www.freeunlocks.com/

On this site you can trade a few tasks for iPhone unlock codes by choosing to pay via TrialPay. In fact the site offers you the chance to choose between paying in cash or via TrialPay.

To use it all you have to do is select the phone model and the phone type. You will then be required to enter your IMEI number and when you get to checkout, choose TrialPay to complete the order. You will complete a task and then get your codes delivered to your inbox.

2. iPhoneIMEI

Website URL: iPhoneIMEI.net

iPhoneIMEI.net uses an official method to unlock iPhone devices and whitelist your IMEI from Apple’s database. Your iPhone will be unlocked automatically Over-The-Air, simply connect it to a Wifi network (Available for iOS 7, iOS 8, iOS 9, iOS 10 or higher, iOS 6 or lower should be unlocked by iTunes). So you don’t need to send your iPhone to the network provider. The unlocked iPhone will never be relocked no matter you upgrade the OS or sync with iTunes.

3. DoctorSIM - SIM Unlock Service

SIM Unlock Service supports both iPhone and Android devices. Even though it is not free unlock code, it surely will provide you a totally better experience to sim unlock your iPhone. It helps you unlock your iPhone so you can use it on any carrier provider you want in the world. Most importantly, it will not void your warranty.

On SIM Unlock Service official website, click on Select Your HTC U23 button, and then select your phone brand among all the smart phone brands.

On the new window, fill in your phone IMEI number, model, contact email, and other required information. After your order is processed, the system will send you the unlocking code and instruction. You can then follow the instruction and use the unlocking code to unlock your phone.

Dr.Fone - Screen Unlock (iOS)

Unlock SIM Cards in a 3-Step Method

Support newly released models from iPhone 5S to iPhone X.
Move to any network operator within minutes aimlessly without data loss.
You can unlock an iPhone without an R-SIM.
Compatible with most carriers, T-Mobile, Sprint, Verizon, etc.