This Xolo Q900s Firmware, PAC file can be used with any service tools capable of Flashing PAC file on SpreadTRUM Android Devices.Stock firmware are mostly needed to either upgrade or downgrade your Xolo Q900s. It can also be needed to simply flash your Xolo android device in order to correct certain software issues or malfunctions on the phone. Here on this page I have contained the download link for the complete Xolo Q900s Stock ROM, PAC file which can be used to flash factory OS back to your Xolo Q900s.
How to Download Latest Firmware and Flash Xolo Q900s with this PAC File
1. Download SPD Download Tool from here and install it on your PC. Also, it is a must to install SpreadTRUM Android drivers on your PC. You may Download SpreadTRUM Android Drivers here2. Download your Xolo Q900s, latest firmware pac File from here.
3. Open the SpreadTRUM Flash Tool you downloaded from the link above. It is compressed in a zip file, simply extract it onto a folder on your PC, open the folder to locate the SpreadTRUM Upgrade Tool application and then; double-click it to lunch the program.
4. Now, Put off your Xolo Q900s or remove battery from it and re-insert the battery then, connect your Xolo Q900s Mobile Phone to the PC.
5. Now, select the specific STOCK FIRMWARE you downloaded for your Xolo Q900s android device by clicking on the Select Pack icon.
6: As soon as the file is loaded successfully, click on "Download Button" to commence the flashing operation.
NOTE: During the flashing operation, your phone may reboot once or twice. Just leave it and do not interrupt the operation.
7: Once the flashing operation is successfully completed, you will see "Previous Passed" message displayed in green on the SpreadTRUM Flash Tool.
CONGRATULATIONS! You have now successfully flashed your Xolo Q900s android device.
For Graphical Illustration on how to flash Xolo SpreadTRUM android devices, see here: How to Flash Xolo Android Device: Step by Step with Pictures
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