[Micromax A106 Unite 2] r2dak:
While trying some mods for Unite 2 , my phone got bricked, i must have done something wrong because those mods are working for others. so it was completely my mistake. so i spent my last 4 hours trying to find a solution and this is how i finally got it work.

JUST WANT TO REMIND YOU THAT TRY THIS GUIDE ON YOUR ON RISK, IM NOT GIVING YOU ANY GUARANTEE THAT IT WILL GOING UNBRICK YOUR DEVICE, IM JUST SHARING THE METHOD WHICH WORKED FOR ME

MY DEVICE

MICROMAX UNITE 2 4GB

KITKAT 4.4.2

following was the symptoms of my device only try this guide if yours are identical to mine

Phone was not booting up (nothing was happening no matter how long i press power button)

wasn't booting into to recovery mode also notification led was not turning on when plugged to PC (i.e No charging)

windows was making device plugged and unplugged sound over and over again when i was connecting it to pc using data cable

now from the 3rd point i figured out that my phone was being detected by my pc but only for a brief moment

so after searching for a while i found out that it was a problem with the PRELOADER and device was trying load META mode(donAt have any clue what that is) so i needed to Install MTK65XX Preloader USB Vcom Drivers for SP Flash Tools.

this is how i did it

Step 1 :Firstly Download MTK USB VCOM Drivers from here

DOWNLOAD

the extract it

Step 2 : Now open Device Manager in your PC by right clicking on My Computer and then click on Manage.

Step 3 :Next go to Device Manager in that and click on your PC name and then click on Add legacy hardware, see below

Step 4 : Now in Add Hardware Wizard click on Next >> Install the Hardware that i manually select from a list (Advanced) >> Show All Devices >> Next >>Have a Disk >> Browse, Now select the inf file according to your OS and from where you extracted the downloaded drivers.

Step 5 : Now click on Next on the wizard to install the drivers and when promoted for security issue just click on install any anyway to finish the driver installation.

Step 6 : After installation finish restart your PC.

Source

now remove battery of your phone and then plug it to your pc using data cable While Holding Volume up button

the windows will recognize it and install drivers, now open device manager and if you find a device under Ports(Com&LPT) which has Mediatek, MTK, USB, VCOM,PRELOADER keywords in it then you are good to go

now download SP Flash Tool

Devhost l Mediafire

and Factory rom

Download

and then extract the Factory rom archive

Then flash Stock ROM by following these steps:

Step 1: Open SP flash tool and load the Scatter file of Stock ROM it is inside the extracted factory rom folder

Step 2: Select Format all+Download in drop-down menu.

Step 3:Remove the battery of your phone.

Step 4:Click Download in SP Flash Tool.

Step 5:connect your phone to pc via USB cable while holding volume up button you can release volume button when the process is stared . Wait for flashing to complete .

Step 6: when the process is completed unplug the phone, insert the battery and then turn it one hopefully it should boot now and you should see Micromax logo just remember first boot take long time so just wait for it to completely boot

if this doesn't work then don't loose hope keep on searching for other ways ,