How to Flash using Research Download Tool Or Upgrade Download Tool [Detailed]

This Guide will explain how to flash Spreadtrum devices using Research Download Tool / Upgrade Download Tool.

Flash Pac Stock Rom on Android Smartphone

Requirement:

>PC running Windows OS

>Spreadtrum chipset Mobile phone (i.e Lava A71, Xolo Era 4g etc)

>Spreadtrum Drivers (Download Here)

>Research Download Tool (Download Here)

>Firmware File To Flash (in .pac)

Step 1: Download & Install Spreadtrum USB Drivers on your Computer. If Spreadtrum Drivers is already installed on your pc then proceed to step 2.

Step 2: Download Stock Rom (pac) for your Android Device.

Step 3: Download and extract Spreadtrum Research Download Tool on your computer.

Step 4: Now, open ResearchDownload.

Step 6: Now click on the Load Button and add the .pac file (stock rom which comes as .pac).

Step 7: Once you have successfully added the Pac file in  Research Download Tool, Click on the Start button Downloading button and Connect USB cable to switched off phone.

Step 8: During the flashing process your device will restart automatically. Once flashing is completed, you will be able to see the Green Passed Message  in Spreadtrum Upgrade Tool.

Step 9: Remove USB cable and reinsert battery.