When you install the non-recognised WLAN card into the PCI slot, the Lenovo PC shows an error message with the code 1802 beside it. The error appears in different forms and you may get stuck to perform the booting program. Moreover, the display appears with the unexpected error message, “Lenovo Error Code 1802” on the black screen. This black screen error corrupts the Lenovo BIOS program and triggers internal issues on your motherboard.
Major Symptoms behind the Lenovo Error 1802
You can encounter the following problems when the Lenovo Error 1802 appears on the screen.
- The Lenovo PC fails to perform the boot program and after several attempts, the device stops to respond.
- The Lenovo device fails to start if the non-listed WLAN card is inserted and start to freeze on a frequent basis.
- The system starts to reboot automatically without loading the desktop display. The display is turned to black without showing any warning message.
- The CPU sends an error signal due to system start-up error and the PC starts to lag immediately.
- Besides this, the system shows you the unexpected error message, “Lenovo Error Code 1802”.
Fixed Lenovo Error Code 1802 with Simple Steps
There are some effective steps that we have mentioned below to resolve the Lenovo Error Code 1802 without any hassle. Moreover, the following steps will help to enhance the system performance by triggering the CPU cycles. So, you can follow the steps below to overcome the Lenovo WLAN card error and increase the system longevity.
Check BIOS and Repair
Sometimes, the BIOS setup error creates an unexpected error when you try to run an application. Moreover, you won’t be able to perform any task without handling the BIOS configuration parameters. It will help to check whether the non-listed WLAN card is installed on your Lenovo device or not. On repairing the BIOS of your device, you can overcome any hardware failure issue that may be another reason behind this System startup error.
- First, Click on Start and open the Start menu.
- Click on the Settings app(Gear icon).
- In the resultant window, go to the Update & Security option.
- Select the Recovery menu from the left pane of the window.
- Click on Restart Now from the bottom-right section of the window.
- The system will take a few times to reboot and click on the Troubleshoot from the list of the items.
- Choose Advanced options from the Troubleshoot window.
- Start the UEFI Firmware setup program by clicking on that specific option.
- Modify the SATA Settings to the correct value.
- Save the Settings and reboot the Lenovo PC again in Normal mode.
- When done, run a program and check whether the message, “Lenovo Error Code 1802” persists on the screen or not.
Outdated version of BIOS and firmware causes the Lenovo error code 1802. The incompatibility between the BIOS firmware version and driver software triggers this annoying issue. Therefore, it shows the Lenovo error codes when you update any software. To perform the BIOS upgrade process, you may try out the steps below.
- Press the Windows key from the keyboard and click on the Settings app.
- Open the System Information and check the Model name of the Lenovo.
- Find out the BIOS number and launch the BIOS manufacturer’s support page.
- Locate the BIOS file from the resultant page and check whether the update file is newer than the BIOS version.
- If not, click on the Update file to download it.
- It will take a few minutes to complete the upgrade process. Once done, restart the Lenovo device and verify whether the problem is fixed or not.
Incorrect setup of CMOS creates the internal software settings issue. Therefore, the system fails to take the automatic upgrade process. Furthermore, the system fails to perform any task without a proper CMOS configuration. Resetting the CMOS helps to keep the processor powerful as it was in manufactured time.
- Restart the Lenovo laptop or PC and press F2 from the keyboard immediately when the manufacturer’s logo appears on the screen.
- In the BIOS setup window, locate the CMOS option to launch the CMOS Setup page.
- Now, check all the options that appear on the resultant screen by navigating the arrow keys.
- Modify the CMOS settings if necessary and press F9 from the keyboard to change the BIOS with the default settings that will help you to reset the CMOS.
- Next, press F10 to apply the new changes and exit from the page.
- It will restart the system automatically and try to run an app to check whether the Lenovo Code 1802 is resolved or not.
Upgrade Lenovo Driver
It may be that the outdated Lenovo driver becomes incompatible with the updated BIOS. Therefore, the Lenovo system shows different error codes related to the BIOS and CMOS. Even, the wireless LAN Card driver failure becomes another issue and causes this error code 1802. To fix the problem, you can perform the process below. It helps to upgrade the system firmware as well as the driver associated with the device similar to the BIOS version.
- Click on the Start button and open the program menu.
- Click on the Lenovo Companion from the list.
- Choose the System Update from the header and click on it.
- Click on the Check for updates and notifications to verify whether the latest version is availble or not.
- If the updated version is found, tick the checkboxes for the Lenovo updates.
- It will start to perform the installation process and click on the Ok button when it is done.
- After that, check whether the Lenovo Companion is updated with the latest version or not.
- When done, restart the System and fix Lenovo error code 1802.
From this article, you can get the idea to handle the Lenovo Error code 1802 effectively. Moreover, we have discussed the possible reasons behind this significant issue that will help you to avoid it. Besides this, you will be warned to go through the major symptoms discussed in the above article. We hope this article will be beneficial for Lenovo users to tackle this Lenovo PC error as well as enhance system performance effortlessly.