Linda Megan 
These are the instructions for using Marvell SWDownloader for Flash or installing firmware on a device with the Marvell chipset.
Warning: Flashing or installing firmware with Marvell Flash Tool will erase data from the device. So we recommend you to back up your data before using flash tools.
Install .blf Firmware using the Marvell SWDownloader
step 1
Also download the Marvell USB drivers to your computer (if the Marvell drivers are already installed, skip this step).
step 2
Download the stock firmware (based on .blf) to your Marvell device (if you have downloaded the stock firmware then skip this step or you can find the default .blf based firmware on FirmwareFile or via Google).
step 3
Now download the Marvell SWDownloader tool to your computer (assuming you have downloaded it. If not, download the Marvell SWDownloader tool. Once you have downloaded the tool you will be able to see the following files.
step 4
Now open SWDownloader.exe to run the tool
step 5
After starting Marvell SWDownloader, you will see the following screen
step 6
Now click the Open button
step 7
Find the .blf firmware on your computer (assuming you have downloaded the firmware to your computer) and click the Open button.
step 8
Now click the “Start” button
step 9
Press Volume Down + Connect your Marvell device to the computer using a USB cable (make sure the device is turned off).
step 10
As soon as the device is recognized by the tool, the firmware installation process starts and may take several minutes.
step 11
After the installation process is complete, a PASS message will be displayed on the tool.
step 12
Now close Marvell SWDownloader and disconnect the Marvell device from the computer.
Congratulations! Now restart your mobile device and you are good to go.
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