Toshiba Satellite L455D-S5976 Troubleshooting

If the power supply is broken the computer will run on battery power but will not charge. Try using a different power supply. If the problem persists the issue may be the charging port.

If the charging port is broken the laptop will not run using the power supply and the battery will not charge. If a new power supply doesn't fix the issue, then replace the charging port.

If the hard drive is not completely plugged in the computer will not boot properly. Remove and reconnect the hard drive. If the problem persists, replace hard drive.

If the memory in the computer is faulty the computer will turn on, but will then immediately shut off. Clean or replace the memory.

When the power supply is unplugged the computer immediately shuts down.

If the laptop will turn on with the power supply attached but will not turn on without it then the battery may need replacement. Make sure the battery is fully charged. If the problem persists, replace the battery.

The screen is blank even if the laptop is on.

If the screen breaks, the computer will still turn on but the screen will be blank. Verify this is the issue by connecting the computer to an external monitor using a RGB cable or an HDMI cable. If the monitor shows what should be on the computer screen, then the screen needs replacement.

The screen may malfunction due to dirty or corrupt RAM. Replace the RAM

If the cables that connect the screen to the motherboard, hard drive, power supply, and memory are disconnected, this may cause screen malfunction. Open up the laptop and reconnect the cables.

Laptop suddenly becomes nonresponsive during use.

The laptop may overheat if the fans are not functional. If the fans do not turn on when the computer gets hot then they need cleaning or replacement.

If the laptop attempts to run too many programs it may freeze due to lack of memory. Replace current RAM with upgraded RAM.

The laptop may freeze while in use or turn on briefly and then turn off if the CPU has failed. Inability to turn on at all could also indicate CPU failure. If this is the issue, replace the CPU.

Operating system files may be installed incorrectly or corrupt, causing the computer to freeze. Reinstall the files to correct the issue if this is the case.

Computer CD/DVD Drive doesn't recognize discs.

If the drive won't open, use a paperclip to press the small, round button next to the eject button. Remove the disk.

If the CD drive laser breaks it will fail to recognize disks. Try a few different disks and if the CD/DVD drive fails to read these disks then the optical drive likely needs replacement. Replace the Optical Drive.

Laptop fails to connect to the network.

If the laptop cannot establish a reliable connection to the network, then the WiFi card may be damaged or broken. Replace the WiFi card.