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Install the USB drivers

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Your phone needs to communicate with your computer properly, so you need to install the correct USB drivers.


Instructions for Windows 7


  1. Open Settings from the app list on your phone.
  2. Tap Applications.
  3. Tap Development.
  4. Make sure USB debugging is ticked.
  5. On your computer, download osf-ii-driver-windows.exe (click to download)
  6. Once downloaded, run osf-ii-driver-windows.exe and install it.
  7. Installing Orange San Francisco / ZTE Crescent drivers
    Follow the steps in osf-ii-driver-windows.exe in order to install the drivers
  8. With your phone on, connect it to your computer (use the cable included with your phone).
  9. A balloon might pop up in the bottom right hand corner of your screen, informing you a device is installing. You may receive an error that the installation was unsuccessful - do not worry, this is normal and you may continue.
  10. On your computer, press the Start button and type (or copy and paste) SystemPropertiesHardware.exe into the box, and then press enter (or click SystemPropertiesHardware.exe near the top).
  11. SystemPropertiesHardware.exe
    Enter SystemPropertiesHardware.exe and press the enter key.
  12. Click Device Installation Settings.
  13. Click Device Installation Settings
    Click Device Installation Settings.
  14. Select Install driver software from Windows Update if it is not found on my computer.
  15. Click Device Installation Settings
    Select Install driver software from Windows Update if it is not found on my computer and click Save Changes.
  16. Click Save Changes.
  17. You have now installed the drivers, and you may continue to the next page.

Instructions for Windows Vista


  1. Open Settings from the app list on your phone.
  2. Tap Applications.
  3. Tap Development.
  4. Make sure USB debugging is ticked.
  5. On your computer, download osf-ii-driver-windows.exe (click to download)
  6. Once downloaded, run osf-ii-driver-windows.exe and install it.
  7. Installing Orange San Francisco / ZTE Crescent drivers
    Follow the steps in osf-ii-driver-windows.exe in order to install the drivers
  8. With your phone on, connect it to your computer (use the cable included with your phone).
  9. A balloon might pop up in the bottom right hand corner of your screen, informing you a device is installing. You may receive an error that the installation was unsuccessful - do not worry, this is normal and you may continue.
  10. On your computer, press the Start button and type (or copy and paste) SystemPropertiesHardware.exe into the box, and then press enter (or click SystemPropertiesHardware.exe near the top).
  11. SystemPropertiesHardware.exe
    Enter SystemPropertiesHardware.exe and press the enter key.
  12. Click Windows Update Driver Settings.
  13. Click Windows Update Driver Settings
    Click Windows Update Driver Settings.
  14. Select Check for drivers automatically (recommended).
  15. Check for drivers automatically (recommended)
    Select Check for drivers automatically (recommended) and click OK.
  16. Click OK.
  17. You have now installed the drivers, and you may continue to the next page.

Instructions for Windows XP


  1. Open Settings from the app list on your phone.
  2. Tap Applications.
  3. Tap Development.
  4. Make sure USB debugging is ticked.
  5. On your computer, download osf-ii-driver-windows.exe (click to download)
  6. Once downloaded, run osf-ii-driver-windows.exe and install it.
  7. Installing Orange San Francisco / ZTE Crescent drivers
    Follow the steps in osf-ii-driver-windows.exe in order to install the drivers
  8. With your phone on, connect it to your computer (use the cable included with your phone).
  9. A balloon might pop up in the bottom right hand corner of your screen, informing you a device is installing. You may receive an error that the installation was unsuccessful - do not worry, this is normal and you may continue.
  10. You have now installed the drivers, and you may continue to the next page.