How To Flash PAC Stock Rom 1.Download and Install Spreadtrum USB Driver. 2.Download Stock Rom. 3.Open Spreadtrum Upgrad Tool. 4.Click on the Load Packed Button and add the Pac file. 5.Now Click Start Downloading Button to begin the flashing. 6.Now Connect Your Phone with USB and hold Boot Key. 7.During the flashing process your device will restart automatically.once flashing is completed, you will be able to see the Green Passed Message. Now Enjoy your Smart Phone… :Important Notes: ::Take a Backup of your Personal data before flashing or installing the firmware on your smart phone as this helps you to recover the personal data whenever any thing wrong happens.