All LED TV Service Menu Codes & Universal Motherboard Factory Reset Codes (2026 Master List) – Smart TV Guide

Master Reference for TV Repair Engineers & Technicians: Below is the complete technical database of master service menu codes, factory remote combinations, and panel resolution matching codes across China universal LED/LCD motherboards (CV, T.VST, TP, SKR, VS, LAD, S368, and KK series) and major TV brands (Samsung, Sony, LG, Panasonic, Philips, Videocon, Mi, TCL, Haier, and more).

Universal Motherboard Service Codes (By Board Model)

Remote Panel Resolution Matching Codes

If you experience a black screen (with backlight on), scrambled lines, or an "Out of Range" error after installing a universal mainboard, input the corresponding panel code on your remote while the TV is powered ON:

Brand-Specific LED & Smart TV Service Menu Codes

Samsung LED / QLED / OLED TV

• Standard Infrared Remote (TV in Standby): MUTE → 1 → 8 → 2 → POWER
• Alternative Standby Sequence: INFO → MENU → MUTE → POWER
• Older LCD/LED Series: DISPLAY → P.STD → MUTE → POWER
• Hotel Mode Toggle: MUTE → 1 → 1 → 9 → ENTER / OK

Sony Bravia Smart Android TV

• Service Mode (from Standby): Press in rapid succession: DISPLAY (or i+) → 5 → VOL + → POWER
• Self-Diagnostic Screen: From Standby: DISPLAY → 5 → VOL - → POWER
• Hard Reset Without Remote (Bootloop Recovery): Unplug power cord. Hold physical POWER and VOL - buttons on TV chassis. While holding, plug in the power cord. Keep holding for 25 seconds until front LED turns solid green.

LG LED & OLED TV Passwords

• Access Method: Press and hold the MENU button on the remote for 6–8 seconds until the 4-digit PIN box appears.
• Master Passwords: 0413 (Standard on webOS), 8741, 0000, 7777, 8878, 8743

Panasonic (TH Series)

• General Code: MENU + 1147 (TH-24, TH-28, TH-32, TH-40 models)
• Alternative AV Sequence: SOURCE / AV + 3195 (TH-32D200DX, TH-43D350DX, TH-50C300DX)
• Picture Submenu: MENU → Picture → Contrast → 9735 or 1950

Videocon & Sansui

• Standard Code: MENU + 1147 or MENU + 6483
• Sound Submenu: MENU → Sound → 8532
• Panel Parameter Selection: TV/AV → 8 5 3 2 1 0 X X

Philips LED TV

• Service Alignment Mode (SAM): 0 6 2 5 9 6 → MENU / INFO
• Value & India Series: MENU + 2580 or MENU + 1950
• Legacy PT Series: MENU + 1147

Haier LED TV

• MENU + 1147
• MENU + 8202
• MENU + 8893 (or MENU → Highlight Audio → 8893)
• MENU / EXIT → 1999 → OK

Smart Android TVs (Xiaomi, OnePlus, Realme, TCL)

• Xiaomi (Mi TV): From Standby, hold Mi Home + Back / O on Bluetooth remote, then press physical Power button on TV.
• OnePlus TV: From Home → Settings → Press Vol + → Vol - → Left → Right → Up → Down → OK.
• Realme TV: From Home, select Live TV → Press Menu → Advanced Options → Press Left → Right → Left → Right.
• TCL / Thomson: Press Settings → Picture → Advanced Settings → Contrast → Press 1 9 5 0 (or 9 7 3 5).

Technician Guide: Fixing Mirror Image & LVDS Map

1. Inverted / Upside-Down Picture (Mirror Mode)

1. Access the Service Menu (usually MENU + 1147 or INPUT + 208).
2. Navigate to Panel Settings (or Special Settings).
3. Locate the Mirror Mode parameter (Flip, H-Mirror, V-Mirror).
4. Change the value to On or Off to right the picture.
5. Power cycle the TV (Standby → ON) to save the EEPROM register.

2. Solarized / Negative / Washed-Out Colors (VESA vs JEIDA)

1. Open Service Menu → Panel Settings.
2. Find LVDS Map (or TI Mode / Bit Depth).
3. Toggle between VESA and JEIDA (or switch 8-Bit / 10-Bit).
4. Colors will immediately restore to normal saturation.

⚠️ Technician Safety Warning: Never adjust parameters labeled ADC Calibration, Spread Spectrum, or T-CON Voltage without an oscilloscope. To exit safely without saving unintended changes, press the EXIT key on the remote.