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Two Ways to Unlock Huawei E303 Modem

James Davis

Sep 06, 2023 • Filed to: Remove Screen Lock • Proven solutions

With all of the advancement of technology that is happening in the world today, you would prefer to have the best with you. When it comes to using modems and routers, you would like to have the best ones which are branded.

If you own or plan on buying a Huawei E303 Modem, you will have to unlock it before you can use it to the best of its ability. So today, I will be showing you how you can unlock your Huawei E303 Modem before you begin using it with the help of two simple methods. In one method I will be using the DC Unlocker Software and in the other, I will be using a Huawei Code Calculator. Both ways will be very convenient for you and you need to follow each instruction step by step.

Part 1: Unlock Huawei E303 Modem with DC-Unlocker

For unlocking your Huawei E303 Modem, you should first have four basic requirements present with you namely.

  1. Your Desktop or your Laptop.
  2. Your Huawei E303 Modem.
  3. You need to have a PayPal account or an active credit card.
  4. And you need to have installed the DC Unlocker Software on your system.

DC-Unlocker Software

You can use the DC-Unlocker software for data card unlocking. This software is specialized and is used worldwide by many people for unlocking purposes.

You need to follow the following steps for downloading and installing the DC Software on your computer.

1. If you do not have the DC-Unlocker installed on your computer then you can download it from this website;


The software will be about 4 MB. Once the downloading has been completed then you have to open the folder containing the downloaded application

dc unlocker software

2. Once you’ve located the downloaded file, then you begin with the installation procedure of the software.

unlock huawei e303 with dc unlocker

3. After a while, you will begin to see information present in green font on the window. This means that the installation process has concluded and you are ready to use this software.

How to unlock the Huawei E303 Modem using the DC Software:

unlock huawei e303 using dc unlocker

1. First, make sure that you have first inserted your SIM card into the modem before plugging it in.

2. Once you have installed the DC Software, you have to proceed towards the account registration procedure and create a free account.

3. After you have created the account, run the software.

4. Next, you have to make sure to select two things a manufacturer and a recommended model

5. If you have no knowledge regarding the model of the Huawei Modem then you should click on the “Search” icon.

Step 2:

unlock huawei e303

After you have selected all the necessary options, you will have to wait for a few more seconds for the DC-Unlocker to detect the Huawei E303 Modem.

Step 3:

unlock huawei e303 with dc unlocker

1. After your modem has been discovered, you will have to click on the “Server” option.

2. This will open up two tabs asking for your username and password. Type the valid information and then click on “Check Login.”

Step 4:

dc unlocker unlock huawei e303

1. Next, you will have to select a payment option before you can unlock your Huawei Modem.

2. For a Free, Modem Unlock you would not need credit for unlocking your modem. But if it is a Paid Unlock, then you would require at least 4 credits.

3. You can purchase credits via tools such as PayPal, Payza, Skrill, WebMoney, Bitcoin, etc.

4. You will have to mention all the necessary details and the number of credits you wish to purchase before confirming your payment.

Step 5:

unlock huawei e303 using dc unlocker

1. Once you have purchased the credits, the DC Unlocker will be mention below how many credits are currently available with you at the bottom of the window.

2. After you have confirmed that everything then you should click on the “Unlock” option.

Step 6:

unlock huawei e303

Congratulations! You have now successfully unlocked your Huawei E303 Modem via the DC Unlocker. You can now use your modem and connect it to the PC whenever needed. You can even insert and access any kind of SIM card to your Huawei Modem.

Part 2: Unlock Huawei E303 for Free with Huawei Code Calculator

You can also use a second way to unlocking your Huawei E303 Modem. You will be needed Huawei codes this time around. You can generate the codes either online or offline or free unlocked codes can be provided to you. The instrument that you can use to calculate the codes is called the Huawei Unlock Code Calculator

But you need to follow all the mentioned instructions step by step while unlocking your Huawei E303 Modem.

Step 1: Finding the IMEI Number:

huawei code calculator

First, you would need to locate the IMEI number. You will find it present either on the rear side of the Huawei E303 Modem or just before the slot for the SIM Card.

unlock huawei e303 with huawei code calculator

1. If the IMEI number is not present If not present externally, then you can also identify it internally by opening the Dashboard.

2. Once the window has opened you should click on “Tools” and run the “Diagnostics.”

3. You will now find that a window has been opened and the IMEI number will be located over here also.

Step 2: Determining the Unlock Code Algorithm:

Huawei Technologies provides you with two different types of Algorithms namely the “Old Algorithm” and the “New Algorithm.” Both have a different logical sequence and you should know that it is necessary to determine which algorithm will be supported by your modem.

1. First, you should go to the web page:


unlock e303 with huawei code calculator

2. Once it opens, you will have a box present in front asking for the IMEI number of the modem. After you have done it, then click on the “Submit IMEI” option.

unlock huawei e303 using huawei code calculator

3. Next, you will have to find out and check which algorithm is supported by your Modem.

There are two different types of Algorithms present for code calculation;

A. Old Algorithm:

This is an online tool specially designed which directly provides you the necessary code for unlocking your Huawei E303 Modem for free. You can access it as follows;

1. First, you need to access the site;


huawei code calculator

2. Once the webpage opens, you should mention the correct IMEI Number in the box. After you have done that, click on “Calculate.”

3. Congratulations, you have now received your code which you can use for unlocking your Huawei E303 Modem.

B. New Algorithm:

You won’t find the Huawei New Algorithm available anywhere on the Internet for free but you can do it after you have accessed a link and follow the necessary instructions.

1. You should first access the following link would providing you access for using the “New Algorithm” for the Huawei Code Calculator;


unlock huawei e303 moderm

2. The link will open up a page asking you to mention your details for Logging In to use the calculator via Google+ registration.

3. You will even have to carry out other formalities such as accepting all the necessary terms and conditions and proceeding ahead.

unlock huawei e303 moderm

4. Once you have completed your registration, you will see the “IMEI” and “Model” boxes appearing. Here you will have to mention the proper numbers and details. Once you have confirmed you can click on  “Calculate”.

unlock huawei e303 moderm

5. This will provide you the “+1” link which will contain the unlocked code.

unlock huawei e303 moderm

6. On accessing that link, you will have the New Algorithm results displayed in front of you.

Congratulations! You now have your New Algorithm number and you can unlock your Huawei E303 Modem.

You will find that the unlocking process for a Huawei E303 Modem is a bit difficult. It will even be much more difficult if you do not know what you are doing or do not follow all the instructions properly.  You should understand clearly the concepts of the “DC-Unlocker” software as well as the “Huawei Code Calculator”. Knowing this information makes your unlocking process less complicated and you can unlock your modem faster and improve its performance.

Hence, there were the 2-way methods to unlock Huawei E303 Modem

James Davis

James Davis

staff Editor

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