Spreadtrum Communications Inc is a Chinese Fables SOC Semiconductor Company that design and develop Chipset for Consumer Electronics, Feature Phones, Smartphones and other related products supporting 2G, 3G, 4G wireless standard.

Founded in April 2001, the Company is headquartered in Shanghai, China with R&D Centers across the world, its Chips line up offer high performance and affordability which makes it a perfect choice for a manufacturer that wants to maintain High performance and low cost of production.

Below are the different types of Spreadtrum CPU cores in the Market & examples of Phones they power.


Single Core:
Before the emergence of Multi-core processor, having a single core per chip was the norm for microprocessor manufacturers, what this implies is that a single core processor can only execute a single thread at a particular time.

Examples of Spreadtrum Single Core Powered devices

Dual Core
Dual core CPU is designed to accommodate two independent microprocessor on a single chip, this technology enables a processor to carry out two executions simultaneously, this means the CPU does not have to wait for the current operation to finish before starting another.

Examples of Spreadtrum Octa Core Powered devices

Quad Core
Apparently, it's the successor to the Dual-core Processor architecture, this design realized more speed and processing power by integrating two separate dual core into a single chip. The four cores can execute operation independent of the other. it marks the threshold of the multicore processor race.

Examples of Spreadtrum Quad Core Powered devices

Hexa Core
A Hexa-core processor is made up of six cores with improved abilities, it could split task among individual core to increase efficiency.

Examples of Spreadtrum Hexa Core Powered devices

Octa Core
As the name implies, An Octa-core processor is one with eight independent processor or two sets of Quad-core designed to function as a single chip, it's more efficient in carrying out advance task compared to its predecessor.

Examples of Spreadtrum Octa-Core Powered devices

Deca Core
As the name suggests a Deca-core processor is one which utilizes 10 independent cores on a single SoC to render better overall performance, technically the processing speed is very high when compared to other cores.

Examples of Spreadtrum Deca Core Powered devices


There are different types and versions of Spreadtrum Flashing Tool in the Market, some free some are not, however, they all serve the same purpose of writing firmware on Smartphones that are powered by Spreadtrum Chips.

Examples of Spreadtrum Flash Tools

• Research Download Tool

• SPD Chinese Miracle Box

• Upgrade Download Tool

Below is a comprehensive Tutorial on how to flash Spreadtrum powered Device

Few Jargons/Button associated with Research Download Tool and its firmware Package
• .Pac File: Spreadtrum Device flash file usually comes in this compressed format, the file contains all the GUI, images, Modem and every       other file required to flash an Android base Spreatrum phone or tablet to life.

• Load Packet Button: this Button allows you to navigate your folders to where     you saved your Flash File and also load it.

• Setting Button: Used to set different parameters before flashing.

• Play/Start Downloading Button : this button initiates the flashing process.

• Stop Download Button: It does the opposite of the start Button [terminates] .

Flashing Tips

• Only resort to flashing when other options like factory reset, removal and           reinsertion/connection of battery fails.

• How do you feel when you mistakenly delete your unsaved pix ? bad i guess,       you may feel worse if you flash your device without backing up your files.

• To prevent sudden disruption ensure your battery is at least 40% charged.

• You file may be flagged as a virus by your antivirus software, I advice you             disable it before you proceed.

• Make sure you are flashing with the right .pac file for the model of your               phone, any mistake could be fatal.

• A perfectly working USB Cable could save you some trouble.

• You are following this tutorial at your own risk.

How To Flash Spreadtrum Phones and Tablet using Research Download Tool

• Download and install your Specific Device USB Driver 

• Download your specific Firmware from Spreadtrum Section on this site.

• Download and extract the latest research Download Tool to your                  Computer

• Open research Download Tool folder and launch Researchdownload.exe

Flash Spreadtrum Phones

• On the Top left corner click on the Load Packet Button.

Flash .Pac Files

• At this point a new window will pop up, browse through the folders to where       you had saved your about to be flashed device file.

• Open the Folder, select .Pac file and click open.

Flash Spreadtrum Phones and Tablets

• The Pac File will be loaded and the file name will appear at the top center of       the tool interface.

Research Download Tool Tutorial

• Click the setting Button at the top left corner.

Pac Files for Spreadtrum powered ROM

• Another window will pop up, simply unchecked any item you don't want to        flash and continue by clicking OK. or Ignore this step if you wish to flash all        the files.

Flash Sreadtrum Stock Rom, Firmware, Operating System

• Click the Start Download Button (The one that looks like play Icon).

Learn how to Root Spreadtrum Phones

• the tool is ready, waiting for your Phone.

Pac File Download and Phone Upgrade

• Turn Off your Smartphone or Tablet (Spreadtrum Device).

• Do not remove the battery.

• Some Phones require that you hold the volume down (-) while connecting it      to your PC.

• The flashing process will commence, please do not disconnect your phone or     turn off your computer until you see "passed" or "fail" message .

Pac File

• Once the process is complete you will see a green "Passed" Message.

Tutorial on flashing Itel Phaone

• You are almost done !

• Click on the Stop Downloading Icon to disengage the tool then disconnect           your phone from the PC and Boot.

bricked itel phone reset and flashing

If It Fails Try Troubleshooting 

•  Change the USB Cable and Retry.
•  Inspect your Device USB Port for any sign of fault.
•  Download Another Firmware, make sure it corresponds to your Phone                  Model and Variant.
•  Open and Service Your Device.