the device name of the LG smartphone is usually the same as the model name. the device name is used instead of the MAC address for easier identification. the device name is displayed for Bluetooth or WLAN hotspots, among others. the device name can be changed at any time in the settings.

Android 9 | LG UX 9.0
Step 1:  Open the  Settings
Step 2:  Tap on  General
Step 3:  Tap on  About phone
Step 4:  Tap on  Common
Step 5:  Tap on  Phone name
Step 6:  Enter  Phone name  and confirm with  OK
  1. Open the Settings
  2. Tap on General
  3. Tap on About phone
  4. Tap on Common
  5. Tap on Phone name
  6. Enter Phone name and confirm with OK

LG Instructions