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How to flash Pac stock rom on Spreadtrum smartphones

fellow this tutorial to flash Pac stock rom on any smartphone or device using free SPD Research flashtool


  1. Use this tutorial if your smartphone contains mediatek chipset.
  2. device should have 80 percent Of battery.
  3. A Laptop or Computer to perform flash operation.
  4. The correct firmware, downoad it from Stock roms section.
  5. Make sure not to skip any line, read guide tutorial carefully.
  6. Install Spreadtrum usb drivers (Spd SCI Usb2Serial Drivers)
  7. GSM-FLASH team is not responsible for any damage may happend to your Phone.

Download SPD Research Tool then read step by step tutorial

Step by step to use sp flashtool

1-Prepare spreadtrum smartphone, power it off from home screen or remove the battery then put it back without booting the phone (if you have a non-removable battery simply switch it off from home screen or keep pressing power button), Now launch Research_download.exe.

2-In the Main tab, click on the Load Packet icon (setting icon) in top left corner button, in order to chose the firmware.

3-A computer window will pop-up, navigate to Pac file folder location you want to flash, Select it and click open.

4-Wait till research download tool finish loading the PAC File, you can see loading progress bac on bottom centre of software.

5-After finishing Pac load, Pac file name should appear in the screen of software.

6-Now, this step is optional, if you want to flash just some partitions, go to setting tab (second icon from left) (2 settings icons), then choose which partitions you want to flash (uncheck unwanted partitions), hit Ok.

7-Click the start downloading button (start icon), a waiting bar will show up).

8-Now, you need to attach phone to computer in download mode via usb cable, make sure to power phone off, then keep pressing volume up + volume down while connect phone to pc.

9-Flash operation will start immediately, flashing stock rom can remain between 5 and 10 minutes in some cases, do not interrupt the process.


10-Once flashing is done, you will see passed in progress tab, unplug usb cable, reinsert battery then power on your smartphone

In case phone has non-removable battery, keep pressing on power button for 10 seconds in order to power phone on.

11-To exit Research download tool, click on stop downloading icon, then close the window.

Congratulation, the stock rom is successfully installed on the android smartphone, this is how you flash spreadtrum smartphone.

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