Dell S320 User Manual page 105

Firmware Upgrade
Use the Firmware Upgrade page to update your projector's wireless firmware.
NOTE:
Please disable and enable wireless/network using the OSD to restart
the network card for the projector after firmware upgrade is successful.
To start firmware update, follow these steps:
1 Press Browse to select the file to update.
2
Click the Update button to start. Wait while the system updates the
firmware in your device.
CAUTION:
to crash!
3
Click OK when the update is complete.
Do not interrupt the update process as this may cause the system
Using Your Projector 105