To flash your Intex Aqua R4, you need to download the Intex Aqua R4 stock ROM whose download link is enclosed within here, then, follow the step by step instructions below to flash stock firmware on your Intex Aqua R4.
Please note that flashing this Stock ROM Firmware on your Intex Aqua R4 will format and restore your device to factory defaults settings, hence, making you loose all the files therein. Therefore, you are advised to make a backup if you need to retain your files and data.
Note: If your Aqua R4 is already bricked and you want to unbrick it, you will need to pay closer attention to the tutorials contained below here.
Intex Aqua R4 Stock ROM Firmware Download Link(s)
1. Intex Aqua R4 (v06 Indian SER 173002) Stock Firmware
2. Intex Aqua R4 (v07 Indian SER 150712) Stock Firmware
How to Flash Stock Firmware On Intex Aqua R4
1. Download your Intex Aqua R4 stock ROM firmware from the link above.
2. Extract the Intex Aqua R4 Firmware you downloaded from the link above onto a folder on your PC.
3. Download and install Spreadtrum android device drivers on your PC. You may skip this step if you have installed spreadtrum drivers on your PC already otherwise, download SPD drivers from here
4. Now, choose either of the tools listed below here to load the stock firmware on your Intex Aqua R4.
Note
1. Each of the tools listed above contained step by step guides with illustrated pictures on how to flash stock firmware on your Intex Aqua R4.
2. If you require any further assistance, simply drop your comment detailing the issue(s) and I shall help you revive your Intex Aqua R4, if need be.