To flash your Karbonn A90, you need to download the Karbonn A90 stock ROM whose download link is enclosed within here, then, follow the step by step instructions below to flash stock firmware on your Karbonn A90.
Please note that flashing this Stock ROM Firmware on your Karbonn A90 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 A90 is already bricked and you want to unbrick it, you will need to pay closer attention to the tutorials contained below here.
Karbonn A90 Stock ROM Firmware Download Link(s)
1. Karbonn A90 (RC05) Stock Firmware
2. Karbonn A90 (RC06) Stock Firmware
3. Karbonn A90 (RC06) Stock Firmware
How to Flash Stock Firmware On Karbonn A90
1. Download your Karbonn A90 stock ROM firmware from the link above.
2. Extract the Karbonn A90 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 Karbonn A90.
Note
1. Each of the tools listed above contained step by step guides with illustrated pictures on how to flash stock firmware on your Karbonn A90.
2. If you require any further assistance, simply drop your comment detailing the issue(s) and I shall help you revive your Karbonn A90, if need be.
