# What to do when firmware update fails

If the firmware update fails for some reason, such as power-off during the firmware update, follow the procedure below to recover.

1. After the firmware update fails, start the printer normally.
   • If "Program Update/Recovery Mode MAIN" is displayed: Go to Step 2
     
   • If "EPSON DEVICE Recovery Mode" is displayed:Since firmware update using a USB memory device is not possible, proceed to step 4
     
2. Start the service support mode. (Starting Service Support Mode)
3. Select [08 USB Memory FW Update] to update the firmware.
   If the firmware update is successful, finish the work.
4. Connect the printer to a PC with a USB cable.
5. Run the firmware package (.exe or .dmg).
6. When the updater starts, click [Next].
   
7. Read the license agreement, select [Agree], and then click [Next].
   
8. Read the notes and click [Next].
   
9. Information about the firmware to be installed and the currently connected printer is displayed. Check the checkbox and click [Start]. The firmware update is initiated.
   
10. When the update is complete, the printer will automatically restart.
11. Click [Finish] on the firmware updater to exit.