How to factory reset the LG A3, B3, C3, G3, M3 and Z3

You are able to factory reset your LG A3, B3, C3, G3, M3 or Z3. This feature is helpful if you plan on selling or gifting your TV to someone else and you don’t want them to access any information you have saved. Some technical issues with the television set may also be fixed by restoring its settings to the factory default.

You can check out this tutorial at Seeking Tech to see how you can properly reset your 2023 LG OLED.

1. To start off, you need to press the gear cog button located on your LG television remote.

2. Next, you need to select the gear cog icon located in the menu on the screen.

3. Afterwards, go to General > System > Reset to Initial Settings.

4. You should be able to choose between the Reset All and Reset All Except Network Settings options.

The Reset All option will change all of the settings on your TV to the factory default. This is recommended if you are planning to sell or give away your television set.

The Reset All Except Network Settings will change every setting except for your internet connection setting. This is helpful if you don’t want to go through the network setup process again in order to connect your A3, B3, C3, G3, M3 or Z3 online. If you are factory resetting your TV to fix a technical problem, then you should pick this option.

5. If you set up a password for your TV, then you need to enter the four-digit pass code before you can continue with the factory reset.

If you forgot your password, then you can check out this 2023 LG OLED passcode reset guide.

6. Your television should then start the factory resetting process.

During this time, you should avoid turning off the TV or pulling its power cord from the power outlet.

How to reset the password for the LG C3 or G3

You are able to use a password to lock out content on your LG C3 or LG G3 television set. This is a four-digit numerical code that you need to enter in order to gain access the locked content on your TV.

If you forgot the pass code, then you can check out this guide at Seeking Tech to see how you can reset it for your 2023 LG OLED television set.

While this guide is meant for the C3 and G3, these steps should also be applicable for the A3, B3, M3 and Z3.

How to reset the password

In order to reset the password for your 2023 LG OLED, you need to press the Settings button on the television remote. Afterwards, select the gear cog icon on the screen and then go to General > System > Safety.

You should then be asked to enter your password. If you have never used a password for your television, then the default pass code is 0000. If you previously set up a password on the same TV, then you need to enter the four-digit code that you previously set up.

What to do if you lost your password

If you lost your pass code, then you can still reset it for your C3 or G3 television set.

In order to do so, start off by pressing the Settings button on your television remote. Next, you need to select the gear icon and then navigate over to General > System > Safety.

From there, you need to press the following buttons on the TV remote in sequence:

  • Channel Up Button
  • Channel Up Button
  • Channel Down Button
  • Channel Up Button

If done correctly, you should then see a master password window pop-up. Here, you need to enter 0313 as the pass code.

Your password should now be reset for your LG television.

How to fix LG A3, B3, C3, G3, M3 and Z3 media player app issues

The LG A3, LG B3, LG C3, LG G3, LG M3 and LG Z3 televisions come with a media player app that you can use in order to play files you have stored on an external storage or streamed directly from a computer.

If you are having a hard time trying to get this application to play your video and or audio files, then you can take a look at this troubleshooting article from Seeking Tech.

1. To start off, you should make sure that your video or audio file is supported by the LG media player.

For a video to be played, it needs to feature a compatible file extension, resolution, frame rate and video codec. For more information, you can take a look at this video file compatibility guide.

In terms of the audio file, it needs to come with a supported file extension, audio codec, bit rate and sample frequency. You can find information in our audio file compatibility guide.

2. If you are connecting an external storage drive to your LG TV via the USB port, then make sure that the television set is able to detect it properly.

If you are having issues with the USB drive, then you can take a look at this troubleshooter.

3. If you are sure that you have all the compatibility issues sorted out but aren’t able to find the file in the media player app, then make sure that you set the filter to “All” in order to view all your video and/or audio files.

4. If you manage to get the video to play but the audio is muted, then you may see the following error message:

  • “This audio is not supported”

In this case, you may have a compatible video file with incompatible audio codec. So, if possible, you can try converting the video file with a supported audio portion to see if you are able to get the audio to playback properly.

5. If you haven’t done so already, make sure you update the firmware of your LG OLED. A software update may improve support for video and audio codecs.

6. If you still can’t play the video or audio to play correctly, then you can try playing the same files on an external device that is connected to your A3, B3, C3, G3, M3 or Z3. An external device, such as a computer, may offer better support for your media.

How to fix LG A3, B3, C3, G3, M3 and Z3 web browser app issues

The 2023 LG OLED television models feature a built-in web browser app that you can use to browse the internet. If you are having issues trying to load certain web pages, then you can take a look at this troubleshooting article from Seeking Tech.

Before we begin, it should be noted that this guide will cover the LG A3, LG B3, LG C3, LG G3, LG M3 and LG Z3 models.

Limitations

Using the native web browser app on your 2023 OLED does have some limitations. First off, the application only supports HTML5 media as Flash media is not compatible. Furthermore, you won’t be able to download any plug-ins, save images or save any other files.

In terms of images, the web browser may only show those that use the JPEG, PNG or GIF formats.

For best compatibility, we recommend connecting a computer to your TV and then use a web broswer from the PC.

What to do if the web browser is forced to shut down

The browser may end up being forced to shut down when you are browsing the internet on your A3, B3, C3, G3, M3 or Z3 television set. This is likely due to memory issue.

To potentially fix this, go to the Settings menu of your TV and then select General > OLED Care > Device Self Care > Memory Optimizer. This feature should free up additional memory resources for your television.

What to do if you can’t get a video to play in the web browser app

If the video you are trying to watch can’t be played in the web browser app, then you should check to see if it is running on HTML5. As we stated above, videos that are running on Flash aren’t compatible with the LG TV internet browser.

If you are sure that you are trying to play a HTLM5 video, then the next step you can try is to turn off the Block Ads feature. In order to do so, select the three dots icon in the app and then go to Settings > Use Block Ads. Finally, set the Use Block Ads feature to Off.

You can also try disabling JavaScript Adaptive Streaming. To do so, select the three dots icon in the web browser app and then navigate over to Settings > Adaptive Streaming using JavaScript. Afterwards, set the Adaptive Streaming using JavaScript”” feature to Off.

Once that is done, close the current tab, open a new one and then visit the same page again to see if the video is able to play normally without any issues.

Compatible audio files for LG A3, B3, C3, M3, G3 and Z3 media player

The 2023 LG OLED televisions can play select audio files. You can do so by selecting the Media Player App from the home menu of your OLED television set.

To find out which music formats can be played back natively on these TVs, you can take a look at this compatibility guide at Seeking Tech.

This article should be applicable to the following television sets in the 2023 LG OLED lineup:

  • LG A3 OLED 4K Smart TV
  • LG B3 OLED 4K Smart TV
  • LG C3 evo OLED 4K Smart TV
  • LG G3 evo OLED 4K Smart TV
  • LG Z3 evo OLED 8K Smart TV
  • LG M3 OLED Wireless 4K Smart TV

Compatible Audio Formats

The following audio file extensions should work with your 2023 LG OLED screen:

.mp3

  • Bit Rate: 32 kbps to 320 kbps
  • Sample Frequency: 16 kHz to 48 kHz
  • Supported Compression Type: MPEG-1 and MPEG-2
  • Supported Channels: Mono (1) and Stereo (2)

.wav

  • Bit Rate: N/A
  • Sample Frequency: 8 kHz to 96 kHz
  • Supported Compression Type: PCM
  • Supported Channels: Mono (1) and Stereo (2)

.ogg

  • Bit Rate: 64 kbps to 320 kbps
  • Sample Frequency: 8 kHz to 48 kHz
  • Supported Compression Type: Vorbis
  • Supported Channels: Mono (1) and Stereo (2)

.wma

  • Bit Rate: 128 kbps to 320 kbps
  • Sample Frequency: 8 kHz to 48 kHz
  • Supported Compression Type: WMA
  • Supported Channels: Up to 6

.flac

  • Bit Rate: N/A
  • Sample Frequency: 8 kHz ~ 96 kHz
  • Supported Compression Type: FLAC
  • Supported Channels: Mono (1) and Stereo (2)

When it comes to the .wma files, the number of supported channels may change depending on the sample frequency you are using.

Supported video formats for the LG A3, B3, C3, M3, G3 and Z3 media player

The LG A3, B3, C3, M3, G3 and Z3 features a built-in media player that you can use to play video files stored on an external storage device connected to the OLED television. You can check out this Seeking Tech guide to see which video formats can be played back with these TVs.

Supported Extensions, Video Codecs and Audio Codecs

These 2023 LG OLEDs should be able to natively playback the following extension, video codec and audio codec combinations:

.asf

Supported Video Codecs:

  • VC-1 Advanced Profile (WMVA not supported)
  • VC-1 Simple and Main Profiles

Supported Audio Codecs:

  • WMA Standard (WMA v1/WMA Speech not supported)

.wmv

Supported Video Codecs:

  • VC-1 Advanced Profile (WMVA not supported)
  • VC-1 Simple and Main Profiles

Supported Audio Codecs:

  • WMA Standard (WMA v1/WMA Speech not supported)

.avi

Supported Video Codecs:

  • Xvid (GMC not supported)
  • H.264/AVC
  • Motion Jpeg
  • MPEG-4

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 II
  • MPEG-1 Layer III (MP3)
  • Dolby Digital
  • LPCM
  • ADPCM

.mp4

Supported Video Codecs:

  • H.264/AVC
  • MPEG-4
  • HEVC
  • AV1

Supported Audio Codecs:

  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • MPEG-1 Layer III (MP3)
  • Dolby AC-4
  • DTS
  • DTS-HD
  • DTS:X

.m4v

Supported Video Codecs:

  • H.264/AVC
  • MPEG-4
  • HEVC
  • AV1

Supported Audio Codecs:

  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • MPEG-1 Layer III (MP3)
  • Dolby AC-4
  • DTS
  • DTS-HD
  • DTS:X

.mov

Supported Video Codecs:

  • H.264/AVC
  • MPEG-4
  • HEVC
  • AV1

Supported Audio Codecs:

  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • MPEG-1 Layer III (MP3)
  • Dolby AC-4
  • DTS
  • DTS-HD
  • DTS:X

.3gp

Supported Video Codecs:

  • H.264/AVC
  • MPEG-4

Supported Audio Codecs:

  • AAC
  • AMR-NB
  • AMR-WB

.3g2

Supported Video Codecs:

  • H.264/AVC
  • MPEG-4

Supported Audio Codecs:

  • AAC
  • AMR-NB
  • AMR-WB

.mkv

Supported Video Codecs:

  • MPEG-2
  • MPEG-4
  • H.264/AVC
  • VP8
  • VP9
  • HEVC
  • AV1

Supported Audio Codecs:

  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • PCM
  • DTS
  • DTS-HD
  • DTS:X
  • MPEG-1 Layer I
  • MPEG-1 Layer II
  • MPEG-1 Layer III (MP3)

.ts

Supported Video Codecs:

  • H.264/AVC
  • MPEG-2
  • HEVC

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 Layer II
  • MPEG-1 Layer III (MP3)
  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • PCM
  • DTS
  • DTS-HD
  • DTS:X
  • Dolby AC-4

.trp

Supported Video Codecs:

  • H.264/AVC
  • MPEG-2
  • HEVC

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 Layer II
  • MPEG-1 Layer III (MP3)
  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • PCM
  • DTS
  • DTS-HD
  • DTS:X
  • Dolby AC-4

.tp

Supported Video Codecs:

  • H.264/AVC
  • MPEG-2
  • HEVC

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 Layer II
  • MPEG-1 Layer III (MP3)
  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • PCM
  • DTS
  • DTS-HD
  • DTS:X
  • Dolby AC-4

.mts

Supported Video Codecs:

  • H.264/AVC
  • MPEG-2
  • HEVC

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 Layer II
  • MPEG-1 Layer III (MP3)
  • Dolby Digital
  • Dolby Digital Plus
  • AAC
  • PCM
  • DTS
  • DTS-HD
  • DTS:X
  • Dolby AC-4

.mpg

Supported Video Codecs:

  • MPEG-1
  • MPEG-2

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 II
  • MPEG-1 Layer III (MP3)

.mpeg

Supported Video Codecs:

  • MPEG-1
  • MPEG-2

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 II
  • MPEG-1 Layer III (MP3)

.dat

Supported Video Codecs:

  • MPEG-1
  • MPEG-2

Supported Audio Codecs:

  • MPEG-1 Layer I
  • MPEG-1 II
  • MPEG-1 Layer III (MP3)

.vob

Supported Video Codecs:

  • MPEG-1
  • MPEG-2

Supported Audio Codecs:

  • Dolby Digital
  • MPEG-1 Layer I
  • MPEG-1 Layer II
  • DVD-LPCM

Some of the aforementioned codecs may require you to upgrade the firmware of your A3, B3, C3, M3, G3 or Z3 in order to be compatible. Furthermore, some of the 2023 LG OLEDs may not support the Dolby AC-4, DTS, DTS-HD or DTS:X codecs.

Maximum Video Transfer Rate

You can find the maximum compatible data transfer rates for 1080p 4K, high frame rate, Dolby Vision and 8K video playback below:

1080p Videos:

4K Videos:

High Frame Rate Videos (for LG OLEDs with 120 Hz refresh rate):

Dolby Vision Videos (for LG OLEDs that support Dolby Vision):

  • HEVC 3840 × 2160@60P Main/[email protected]: 50 Mbps maximum data transfer rate
  • HEVC 7680 × 4320@60P Main/[email protected]: 100 Mbps maximum data transfer rate (LG Z3 models only)

8K video (LG Z3 models only)

  • AV1 7680 × 4320@60P: 50 Mbps maximum data transfer rate
  • HEVC 7680 × 4320@60P Main/[email protected]: 100 Mbps maximum data transfer rate

Subtitles

You can also add subtitles to the videos. In order to do so, the names of the video and subtitle files must be identical. Both of these files must be put in the same folder as well.

The following subtitles extensions should be supported:

  • .smi
  • .srt (MP4 Timed Text)
  • .sub (MicroDVD, SubViewer 1.0, and SubViewer 2.0),
  • .ass (Advanced Sub Station Alpha)
  • .ssa (Sub Station Alpha)
  • .txt (TMPlayer)
  • .psb (PowerDivX)
  • .dcs (DLP Cinema)
  • .mkv (Matroska)

Supported resolutions for LG A3, B3, C3, M3 and G3

The LG A3, B3, C3, M3 and G3 OLEDs support a variety of resolutions when you use the screen as either a traditional television set or computer monitor. To find out what resolution is compatible with these TVs, you can take a look at this article from Seeking Tech.

Supported TV Resolutions for A3, B3, C3, M3 and G3

If you are planning to use your A3, B3, C3, M3 or G3 as a television, then the following resolution, horizontal frequency (kHz) and vertical frequency (Hz) combinations are supported in the HDMI-DTV Mode:

640 × 480p:

  • 31.46 kHz and 59.94 Hz
  • 31.5 kHz and 60 Hz

720 × 480p:

  • 31.46 kHz and 59.94 Hz
  • 31.5 kHz and 60 Hz

720 × 576p:

  • 31.25 kHz and 50 Hz

1280 × 720p:

  • 37.5 kHz and 50 Hz
  • 44.95 kHz and 59.94 Hz
  • 45 kHz and 60 Hz

1920 × 1080i:

  • 28.12 kHz and 50 Hz
  • 33.71 kHz and 59.94 Hz
  • 33.75 kHz and 60 Hz

1920 × 1080p:

  • 26.97 kHz and 23.97 Hz
  • 27 kHz and 24 Hz
  • 28.12 kHz and 25 Hz
  • 33.71 kHz and 29.97 Hz
  • 33.75 kHz and 30 Hz
  • 56.25 kHz and 50 Hz
  • 67.43 kHz and 59.94 Hz
  • 67.5 kHz and 60 Hz

1920 × 1080p:

  • 112.5 kHz and 100 Hz
  • 134.86 kHz and 119.88 Hz
  • 135 kHz and 120 Hz

2560 × 1080p:

  • 66 kHz and 60 Hz
  • 131.74 kHz and 120 Hz

3840 × 2160p:

  • 53.94 kHz and 23.97 Hz
  • 54 kHz and 24 Hz
  • 56.25 kHz and 25 Hz
  • 67.43 kHz and 29.97 Hz
  • 67.5 kHz and 30 Hz
  • 112.5 kHz and 50 Hz
  • 134.86 kHz and 59.94 Hz
  • 135 kHz and 60 Hz

3840 × 2160p:

  • 225 kHz and 100 Hz
  • 269.73 kHz and 119.88 Hz
  • 270 kHz and 120 Hz

4096 × 2160p:

  • 53.94 kHz and 23.97 Hz
  • 54 kHz and 24 Hz
  • 56.25 kHz and 25 Hz
  • 67.43 kHz and 29.97 Hz
  • 67.5 kHz and 30 Hz
  • 112.5 kHz and 50 Hz
  • 134.86 kHz and 59.94 Hz
  • 135 kHz and 60 Hz

4096 × 2160p:

  • 225 kHz and 100 Hz
  • 269.73 kHz and 119.88 Hz
  • 270 kHz and 120 Hz

Supported PC Resolutions for A3, B3, C3, M3 and G3

If you want to use your LG A3, B3, C3, M3 or G3 as a computer monitor, then the following resolution, horizontal frequency (kHz) and vertical frequency (Hz) combs are compatible with the HDMI-PC Mode:

640 × 350:

  • 31.46 kHz and 70.09 Hz

720 × 400:

  • 31.46 kHz and 70.08 Hz

640 × 480:

  • 31.46 kHz and 59.94 Hz

800 × 600:

  • 37.87 kHz and 60.31 Hz

1024 × 768:

  • 48.36 kHz and 60 Hz

1152 × 864:

  • 54.34 kHz and 60.05 Hz

1360 × 768:

  • 47.71 kHz and 60.01 Hz

1280 × 1024:

  • 63.98 kHz and 60.02 Hz

1920 × 1080:

  • 67.5 kHz and 60 Hz
  • 134.86 kHz and 119.88 Hz
  • 135 kHz and 120 Hz

2560 × 1080:

  • 66 kHz and 60 Hz
  • 131.74 kHz and 120 Hz

2560 × 1440:

  • 182.99 kHz and 119.99 Hz

3840 × 1080:

  • 66.62 kHz and 60 Hz
  • 137.25 kHz and 120 Hz

3840 × 1600:

  • 99.41 kHz and 60 Hz

3840 × 2160:

  • 53.94 kHz and 23.97 Hz
  • 54 kHz and 24 Hz
  • 56.25 kHz and 25 Hz
  • 67.43 kHz and 29.97 Hz
  • 67.5 kHz and 30 Hz
  • 112.5 kHz and 50 Hz
  • 134.86 kHz and 59.94 Hz
  • 135 kHz and 60 Hz

3840 × 2160:

  • 225 kHz and 100 Hz
  • 269.73 kHz and 119.88 Hz
  • 270 kHz and 120 Hz

4096 × 2160:

  • 53.94 kHz and 23.97 Hz
  • 54 kHz and 24 Hz
  • 56.25 kHz and 25 Hz
  • 67.43 kHz and 29.97 Hz
  • 67.5 kHz and 30 Hz
  • 112.5 kHz and 50 Hz
  • 134.86 kHz and 59.94 Hz
  • 135 kHz and 60 Hz

4096 × 2160:

  • 225 kHz and 100 Hz
  • 269.73 kHz and 119.88 Hz
  • 270 kHz and 120 Hz

For the higher resolutions, make sure you set the HDMI Deep Color setting to 4K, which increases the HDMI bandwidth to 48.0 Gb/s. Otherwise, you may not be able to get your screen to display the content, especially at higher frequencies, if you set the same setting to Off.

Furthermore, you should also make sure that you are using a compatible HDMI cable as well as connecting a device that supports the same resolution, horizontal frequency and vertical frequency combinations.