How to change Android phone's IMEI without rooting

Hello guys. Today I'm going to be taking us on a tutorial on how to change a smartphone's IMEI without rooting using MTK ENGINERRING.
Here are the things you will need:
1. MTK Engineering app which you can download on play store.
2. IMEI Analyzer which you can also download on play store
3. A pen and a book. Now seat and relax as we go through the tutorial together. Remember, if you have any question or comment, drop your comments and questions in the comment box below the post. Now to the tutorial step by step.
This tutorial is for the general smart phones.

Let's say you want to change to an infinite phone's IMEI, search for the infiniti phones IMEI and write it down. This IMEI consist of 15 numbers.

Now, you will have to change either the last four or five digits.
After changing, make sure it's 15 all together. Now open your IMEI Analyzer which of downloaded and write the IMEI you changed there and click analyze. Do this continuously until it tells you you have a valid IMEI.

NOW open your MTK ENGINEERING.

click on MTK ENGINEERING

click on CDS information under connectivity
Now click on Radio Information


Note: if you are changing IMEI for sim 1,choose phone 1 and if you are changing for sim 2, choose phone 2.

Now let's say you choose sim 1, click on the box where "AT+" is written and it would bing some options below. Choose "AT+7"

Now you will see two inverted commas like this: "". Insert your analyzed IMEI in between the inverted commas and press send.
You will then see a message saying "At command is msent".  That's all.

Now reboot your phone.
If it's sim 2, choose the one with +11.

If you have any question, drop it in the comment box below