Fix Miracle Error ERR21002. 00 and Reset Security Code on Tecno T484

Security locks are set up on mobile phones to secure them. Everything is always fine until our human memory fails and we forget what the security codes are. In the case where you have forgotten your security code, you will have to either try to remember or format your phone. If you are having the tecno T484 mobile phone, then in today’s article, I am going to teach you How to Fix Miracle Error ERR21002. 00 and Reset Security Code on Tecno T484. It is advisable that you read this article till the end in order to learn on how to fix your Tecno T484 feature phone.

Remember you can also check our article on How to Flash INFILEX X5 smartphone with INFILEX X5 Firmware file. Also check our website for more content on mobile phone unlocking and computer tricks and tweaks. Now, let us read on and see how we can fix this phone.

How to Fix Miracle Error ERR21002. 00 and Format Tecno T484

If you have ever tried to format this phone on Miracle box, certainly you were hit with error ERR21002. 00 or bootloader error. I don’t personally know why this error comes up, but probably it is something to do with the EMMC type and it’s compatibility with Miracle box. There is another way where you can use the ‘RD Unlock/IMEI’ option, but still in some way or another I didn’t get the required results. The last option I used and I probably think you might have tried it if you are a phone technician is to try to flash Tecno T484 bin file. Unfortunately to me, it still didn’t work and I faced the same Error 002. Until this point, it becomes clear that you cannot reset or format security lock on Tecno T484 feature phone using Miracle box. Let us look at another alternative way. Let us see.

How to reset using MTK FlashTool.

Now, we have now realized that it is clear we cannot use Miracle box on this phone. Therefore, I am going to show you how to solve error 002 on miracle box and reset unlock code on Tecno T484. This means the only way to solve that error is to use an alternative tool. Before we proceed, here is a list of the things you will need to have. 


  1. Computer (PC/ Laptop)
  2. MTK FlashTool.
  3. USB Data cable.
  4. MTK Drivers.

Now, after making sure that you have the above listed requirements, follow the following steps to guide you on how to unlock security code on Tecno T484. Check also how to remove MI Account on RedMi 2 (2014818) smartphone

Step by Step Guide on How to reset unlock code on Tecno T484.

Step 1

The very first step that you need to start with is getting the tool that you are going to use to format Tecno T484 feature phone. Since miracle box is out of the picture here, we are going to use the MTK reset tool. Download Flashtool from this link provided here. Extract it on your computer. If you are missing the files after extracting the ZIP file, try to turn off your computers’ antivirus.

C:\Users\ABALA\Pictures\TECNO T484 1.JPG

Step 2

Now, with the above step having been completed, Proceed and now run MTK reset tool on your PC or laptop. This should be easy because you don’t have to install the tool. You only need to run the application file and the tool will open up as shown.

C:\Users\ABALA\Pictures\TECNO T484 2.JPG

Step 3

At this point, you are on the right track. On Flash tool interface, click on the ‘FOMART’ button. A window will open up with format options. Select the first option and click on the ‘OK’ button.

C:\Users\ABALA\Pictures\TECNO T484 3.JPG

Step 4

FlashTool will now wait for a connection with your phone. Power off your phone. Hold the number zero (0) button. Connect your phone to the computer via USB data cable. FlashTool will detect your phone and format it. Wait until you see a green circle appear.

C:\Users\ABALA\Pictures\TECNO T484.JPG

Disconnect your phone from the computer, power it on, select the language, time zone and start using your phone as brand new without the unlock code.

That is the easiest way on how to fix error 002 on Miracle box and unlock Tecno T484 feature phone. Thank you for reading. Kindly leave a like, subscribe to our website, follow us on Facebook, Instagram and Twitter. In case of any questions, kindly feel free to contact us.

I am a tech enthusiast with a passion for all things mobile phones, computers, software, games, and general technology tricks, tweaks & Mods. I pride in sharing this knowledge through blogging.