An awesome student from our education program made this wiki. It is not managed by iFixit staff.
Acer Chromebook 15 C910-C453 Troubleshooting
The Acer Chromebook 15 C910-C453 was released in January 2015, and can be identified by the part number: NX.EF3AA.003
Trackpad won't Work ¶
The trackpad is not responding to my touch.
Hardware Issue is Causing the Trackpad to Not Work
To test that the trackpad itself is not at fault:
Make sure there is no dust or dirt on the touchpad. If this doesn't work, drumroll your fingers on the touchpad for ten seconds to make sure any potential interferences with connection of the trackpad (like dirt) are gone.
Software Issue is Causing the Trackpad to Not Work
Take the following steps in order until one of them solves the issue:
Touch the Esc key several times. Turn your Chromebook off, then back on again. If these do not work, you might need to perform a hard reset.
Trackpad Works for Some Accounts but Not Others
If you have more than one account on your Chromebook, delete the account that has problems with the touchpad, then re-add the account.
If there are continual problems with your trackpad that the above steps do not help, your trackpad may be at fault. Follow the Trackpad Replacement Guide to replace your trackpad.
Chromebook Won't Turn On ¶
My chromebook won't turn on even though I charged it overnight.
Computer Needs a Reboot
If the computer will not begin to boot, a hard reset may be needed to get the computer back up and running. A hard reset will not delete any files nor act like a Restore. To do this: Turn the Chromebook off, hold down the Refresh button (circular arrow at top of the keyboard) and the Power button simultaneously for about 5 seconds. Release the buttons and the computer should restart.
Computer Won't Charge
The battery or charger may be the problem. See the below "Chromebook Battery Won't Charge" section to see troubleshooting steps for this issue. If this does not work, continue to the "Hard Drive Issue" subsection.
Battery Won't Charge ¶
When I plug the charger into the Chromebook, it doesn't charge the battery.
The Charger is Broken
If you have access to another Chromebook charger, plug it into your laptop. If your Chromebook charges, then your charger is broken and you must replace it. If your Chromebook still doesn't charge, the battery is most likely the issue. An important note, however, is to be sure to try both chargers from different wall sockets, because the true issue could be with where you're charging it from!
The Chromebook Battery is Bad
If the above steps do not work, your battery may be faulty, and needs to be replaced. Follow the steps in the Battery Replacement Guide.
Hard Drive Issue is Preventing Charging
If your Chromebook still doesn't charge, perform a hard reset. If this doesn't fix it, you may need to replace the hard drive.
Screen is Frozen ¶
Screen is frozen and computer won't respond or turn off.
Running Program is Causing the Freeze
The program that is running on your Chromebook may be causing it to slow down and display a frozen screen. Close the program by force quitting or by pressing the escape button.
Software Issue is Causing the Freeze
If the computer is frozen and will not follow any commands or turn off, you may need to perform a hard reset in order to restore your computer. To do this, simply press and hold the refresh button (circular arrow button at top of the keyboard) and the power button for about 5 seconds, or until the computer begins to reset. If this does not work, unplug your computer from the charger and allow the battery to die. After about three hours, reconnect it to the charger and turn the computer on.
Hardware Issue is Causing the Freeze
If there is anything plugged into your laptop through the charging port, USB, or audio jack, unplug it temporarily, as this may be the cause of your frozen screen. Once your screen goes back to normal, you can plug your hardware back in.
"OS is Missing or Damaged" Error ¶
The screen displays "OS system is damaged or missing."
Battery Issue is Causing Error Message to Appear
If the Chromebook dies after this error occurs, plug into charger and allow the dead battery to fully recharge overnight before attempting to restart.
The Operating System is Not Working Properly
If turning your Chromebook off and on again doesn't work, you may need to recover your Chromebook. Note that recovery permanently erases everything on your Chromebook's hard drive, including your downloaded files, so be sure to back up your files before performing a recover. Follow these steps to recover your Chromebook.