Revision to Lenovo B575-1450 Troubleshooting
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| + | == Computer will not turn on == |
| - | "When the laptop is powered on, the screen is black or very dim." |
| + | "The laptop will not show any signs of powering on" |
| + | |
| + | === Faulty power adapter === |
| + | |
| + | Check to make sure that the power adapter is plugged in. If it is make sure the charging indicator is on. If the indicator is not on, and the power adapter is plugged in, the adapter is faulty. |
| + | |
| + | === Faulty battery === |
| + | |
| + | If the computer powers on only when the power adapter is plugged in, then the device battery may be faulty. |
| + | |
| + | == Keys or keyboard is unresponsive == |
| + | |
| + | "The computer doesn't respond when keys are pressed" |
| + | |
| + | === Faulty keyboard === |
| + | |
| + | If none of the keys on the keyboard are responsive, then the entire keyboard may be faulty. |
| + | |
| + | === Keys are missing === |
| + | |
| + | If keys are missing, then replace them. |
| + | |
| + | == Laptop will not connect to wireless internet == |
| + | |
| + | " When Wi-Fi is enabled the laptop will not connect to wireless internet" |
| + | |
| + | === Outdated drivers === |
| + | |
| + | If the computer cannot properly connect to wireless internet, go to this website and download the appropriate driver for the correct operating system. |
| + | |
| + | === Faulty Wi-Fi card === |
| + | |
| + | If you are sure your drivers are up to date and you still cannot connect to wireless internet, then your Wi-Fi card may be faulty. |
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| + | == Computer performs slowly == |
| + | |
| + | " The computer cannot perform basic functions quickly" |
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| + | === Hard drive error === |
| + | |
| + | If RAM is replaced and computer is still running slow, frequently freezes or computer crashes frequently, hard drive may need replaced. |
| + | |
| + | === Not enough RAM === |
| + | |
| + | If computer performs basic functions slowly or crashes while attempting to do basic functions, you may have bad RAM or insufficient RAM. |
| + | |
| + | == No display == |
| + | |
| + | " There is no video display even when the laptop is on or screen is damaged" |
| + | |
| + | === Damaged screen === |
| + | |
| + | If screen is noticeably damaged and you can't identify what is being displayed because of discoloration, then screen needs to be replaced. |
| + | |
| + | === Disabled display === |
| + | |
| + | If laptop is turned on, but display screen is black, then check to see if brightness is turned up. If screen is still black , Screen might be disabled, To enable screen, press "Fn" on the keyboard followed by "F2". This should fix the display. |
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| + | == Computer will not boot up == |
| + | |
| + | "After turning on the computer does not go to the operating system" |
| + | |
| + | === Faulty hard drive === |
| + | |
| + | If RAM is replaced and computer is still running slow, frequently freezes or computer crashes frequently, hard drive may need replaced. |
| + | |
| + | === Not enough RAM === |
| + | |
| + | If computer performs basic functions slowly or crashes while attempting to do basic functions, you may have bad RAM or insufficient RAM. |
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