Acer X1161 Acer X1161, X1261, X110 and H5360 Projector Series Service Guide - Page 75

9. Select "Complete Image Download", then click "Reset Bus" to erase the flash memory. 10. If the FW is ready, click "Start Download" to execute the firmware upgrade. - Click "Yes". 11. It takes about several minutes, the firmware upgrade process is finished, "Download completed" will appear on the screen. - U nplug RS232 cable and power cord. (for X1261/H5360) Note: Please unplug USB cable and power cord. (for X1161/X1161A/X1161N/X110) 12. Check FW version.  - Re-plug in power cable, then restart the unit and get into the Service Mode to check the firmware version. (To get into Service Mode, please press "Power", "Left", "Left" and "Menu" buttons sequentially on remote controller.) X1161/X1261/X1161A/X1161N/X110/H5360 Confidential 5-