This troubleshooting guide will help to find and solve problems with the Toshiba Satellite C655-S5142.
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Your computer either does not start at all, only starts sometimes, or can’t reach your desktop screen
Over time, batteries deteriorate and can even become unusable. If your computer only turns on when it is plugged in, the battery is probably faulty. Refer to this guide to replace your battery.
Adapters can also fail, as they are used repeatedly. When you plug in your computer to a functional outlet, check if the charging indicator light turns on - if it doesn’t, then your power adapter is not working correctly. Consider purchasing a new one.
A computer needs a certain amount of RAM to function correctly. If your computer properly turns on, but the screen stays black and the computer starts beeping repeatedly, there is a problem that is preventing your computer from safely starting. Your RAM may need to be cleaned, or even replaced. This guide shows how to replace your RAM. If this does not help, contact the manufacturer to determine the exact error with your computer, which will be indicated by the computer’s pattern in beeping.
Your keyboard isn’t working the way you want it to - keys are missing, aren’t working, or aren’t typing what they should
If several or all of your keys just aren’t working or are missing, it is likely that your whole keyboard needs to be replaced. Try confirming that the drivers are up to date first, but refer to this guide to replace your keyboard.
If your keyboard is not working, the drivers could be the problem. Go into your “device manager”, find where the “keyboards” option is, and reinstall your drivers, or download new/updated drivers and restart your laptop.
Many things like dust, crumbs, and residue can make its way under the cracks of your keyboard. First power off your device and find something thin like a knife or flathead screwdriver and lightly pry up the keys that are sticking or are unable to be pushed down and pop the key cap off. Check for obstructions, if you identify any, use a microfiber cloth, compressed air or cotton swabs to clean out the keyboard.
If your computer seems to erroneously typing capital letters, sticky keys may have been accidentally enabled. To fix this, press either shift key 5 times rapidly, and reply no to the prompt that appears asking to enable sticky keys.
Your computer is getting very hot, to the point where it shuts down with no warning
Over time laptops can build up dust in their vents and fans causing over-heating issues. To deal with this use a can of compressed air and spray it into the vents, remember not to turn the can upside down.
Your laptop fans may be defective or faulty causing it to overheat, if this is the case it is best to replace them, or perhaps send it back to the manufacturer if it is still under warranty.
Incompatible hardware may be causing overheating issues. If you have upgraded a piece of hardware in this laptop perhaps the software specifications are not up to par or it is just incompatible. Try removing the new hardware and replacing it with the old hardware to see if the problem persists.
Battery overcharging can be an issue and may cause your laptop to overheat. Remember to not always have your charger plugged in as this could also deteriorate the battery’s charge capacity.
Your computer isn’t connecting to your Wi-Fi, or your computer won’t give you the option to connect
It is possible that Wi-Fi has been disabled on your computer. Check if the indicator light for Wi-Fi is on - if it isn’t, make sure airplane mode is not enabled, then hold the FN key at the bottom of the keyboard, and press F9.
If your computer can not connect to Wi-Fi, and you have confirmed that the source is working properly, airplane mode is not on, Wi-Fi is enabled, and have tried restarting the computer, your Wi-Fi card’s drivers may be out of date or missing. Attempt to reinstall or update the drivers.
Your computer’s display is not functioning properly - maybe there is damage to the screen, or the screen is not showing things as they should be
Dead Pixels on a screen are a common issue for electronic displays. One of the ways to get rid of them is to apply some pressure to the area of the screen that contains the dead pixel. Applying pressure will slightly distort the screen and potentially “wedge” the pixel back into working order. If this does not work there are some programs specifically designed to fix dead pixels, the other alternative is screen replacement.
If your computer’s screen has obvious cracks or is damaged in some way, it’s time to replace the screen. There are a variety of online resources to assist in replacing a fractured screen, but to do so, you will need a replacement screen, and you will need to know how to remove and insert a display into the laptop.
If the display is not turning on at all, check the RAM, if a ram stick is dirty, dusty, or old, it could affect your display. Cleaning or replacing your ram sticks are your best course of action. This guide shows how to remove and replace RAM. You can also try restarting your laptop.
Image burning is normally caused by your laptop getting too hot and quite literally “burns the screen/page/image/pixels into your display” causing a slight opacity and causing you too see the previous screen image even if you have changed what you are viewing. Check to make sure your laptop’s fans are working properly and are not obstructed by anything. The image burning will eventually go away, turn your laptop off and let it cool down.
Your optical drive is stuck or won’t load disks correctly
If your disk drive won’t open when you press the button, first try opening it from the desktop. Go to This PC in Windows Explorer, right click the drive, and press “eject.” If this fails, then try manually opening it - take a paperclip or pen, and try inserting the object into the tiny hole located on the door to the drive. Do NOT try to pry or force the drive open. If all else fails, try turning off the computer and opening the bottom panel, and access the drive that way. Once you have access to the drive, make sure to remove any obstructions with compressed air or a microfiber cloth. Make sure to avoid the lens located on the bottom of the drive casing.
Sometimes the computer can’t quite read a disk properly. First and foremost, make sure the disk is not scratched, or has something to prevent proper reading. Next, make sure the computer is off and not charging. Open the disk drive, and use compressed air to remove any dust or debris in the casing. To clean the optical lens, take a very lightly dampened cotton swab, and very gently swab the lens - be very careful, the lens is fragile. Once complete, make sure the lens is completely dry with a new swab.
If your disk drivers are out of date or missing, the computer will be unable to properly read a disk. Either acquire the drivers from the original manufacturer or use Windows’ automatic system to find, download, and update the drivers in device manager.
