Lenovo ThinkPad T490 Hardware Maintenance Manual

To perform a factory reset on your Lenovo ThinkPad T490, go to Settings > Update & Security > Recovery. Under 'Reset this PC', select 'Get started' and choose 'Remove everything' for a clean reset. Follow the on-screen instructions to complete the process.
If your ThinkPad T490 won't turn on, first ensure the battery is charged. Try connecting the laptop to a power source. If it still doesn't power on, perform a hard reset by holding the power button for 10 seconds. If the issue persists, consider checking the RAM or contacting Lenovo support.
To extend the battery life of your ThinkPad T490, reduce screen brightness, close unnecessary applications, use battery saver mode, and keep the system updated. Additionally, avoid extreme temperatures and try to keep the battery charge between 20% and 80%.
To update drivers on your ThinkPad T490, access the Lenovo Vantage app, which will automatically find and install the latest drivers. Alternatively, visit the Lenovo Support website, enter your laptop's model number, and download the necessary drivers manually.
To connect your ThinkPad T490 to an external monitor, use the HDMI or USB-C port on the laptop. Connect the appropriate cable from the laptop to the monitor, and then select the correct input on the monitor. You can adjust display settings in Windows Display Settings.
If your ThinkPad T490 is running slow, check for unnecessary startup programs, clear temporary files, and ensure you have sufficient RAM. Running a disk cleanup, updating the operating system, and checking for malware can also help improve performance.
To enable the backlit keyboard on your ThinkPad T490, press the 'Fn' key and the 'Spacebar' simultaneously. This will toggle between different brightness levels and off. Adjust according to your preference.
For Wi-Fi issues on the ThinkPad T490, try restarting your router and laptop. Ensure Wi-Fi is turned on and airplane mode is off. Update the network adapter driver and reset the network settings if needed. Check for interference from other devices as well.
To replace the battery in your ThinkPad T490, turn off the laptop and disconnect any cables. Remove the screws securing the bottom cover and carefully lift it off. Disconnect the battery cable and remove the screws holding the battery. Replace with a new battery, secure it with screws, and reattach the cover.
Regular maintenance for your ThinkPad T490 includes cleaning the keyboard and screen, checking for software updates, running antivirus scans, and backing up important data. Ensure the laptop is free from dust and debris to prevent overheating, and periodically check battery health.