Firmware Database TV Models Directory Universal Motherboards Guide Browse Brands Common Problems & Fixes Technical Guides Technical Blog Contact Us + Request Firmware 💬 WhatsApp Support (+91 79003 01435)
Diagnostics & Troubleshooting

HDMI & USB Solutions – Smart TV Troubleshooting

Comprehensive technician-verified diagnostic protocols, root causes, component-level checks, and factory USB firmware solutions for Android TV, Google TV, and LED TV displays.

Showing 14 of 14 verified troubleshooting solutions ← View All Categories
🛠️ Need Live Diagnostic Support for a TV Fault?

Our workshop engineers assist with motherboard voltage probing, panel bypass, and recovery firmware flashing via WhatsApp.

Contact WhatsApp Helpline →
HDMI, USB & Inputs

ARC / eARC Not Working

To fix ARC / eARC Not Working, perform a cold HDMI handshake reset by unplugging both devices from…

Diagnosis Steps →
HDMI, USB & Inputs

AV Input Not Working

To fix AV Input Not Working, perform a cold HDMI handshake reset by unplugging both devices from power,…

Diagnosis Steps →
HDMI, USB & Inputs

CEC Not Working

To fix CEC Not Working, perform a cold HDMI handshake reset by unplugging both devices from power, inspect…

Diagnosis Steps →
HDMI, USB & Inputs

HDMI No Signal Error

To fix HDMI No Signal Error, perform a cold HDMI handshake reset by unplugging both devices from power,…

Diagnosis Steps →
HDMI, USB & Inputs

HDMI Port Not Working

To fix HDMI Port Not Working, perform a cold HDMI handshake reset by unplugging both devices from power,…

Diagnosis Steps →
HDMI, USB & Inputs

HDMI Screen Flickering

To fix HDMI Screen Flickering, perform a cold HDMI handshake reset by unplugging both devices from power, inspect…

Diagnosis Steps →
HDMI, USB & Inputs

HDMI Sound Not Working

To fix HDMI Sound Not Working, perform a cold HDMI handshake reset by unplugging both devices from power,…

Diagnosis Steps →
HDMI, USB & Inputs

One HDMI Port Working, Others Not

To fix One HDMI Port Working, Others Not, perform a cold HDMI handshake reset by unplugging both devices…

Diagnosis Steps →
HDMI, USB & Inputs

TV Not Detecting HDMI Device

To fix TV Not Detecting HDMI Device, perform a cold HDMI handshake reset by unplugging both devices from…

Diagnosis Steps →
HDMI, USB & Inputs

TV Not Detecting Set-Top Box

To fix TV Not Detecting Set-Top Box, perform a cold HDMI handshake reset by unplugging both devices from…

Diagnosis Steps →
HDMI, USB & Inputs

TV USB Not Reading Firmware

To fix TV USB Not Reading Firmware, perform a cold HDMI handshake reset by unplugging both devices from…

Diagnosis Steps →
HDMI, USB & Inputs

USB Device Unsupported Error

To fix USB Device Unsupported Error, perform a cold HDMI handshake reset by unplugging both devices from power,…

Diagnosis Steps →
HDMI, USB & Inputs

USB Port Not Detecting Pendrive

To fix USB Port Not Detecting Pendrive, perform a cold HDMI handshake reset by unplugging both devices from…

Diagnosis Steps →
HDMI, USB & Inputs

Wrong Source / Input Problem

To fix Wrong Source / Input Problem, perform a cold HDMI handshake reset by unplugging both devices from…

Diagnosis Steps →
Official Technician Helpdesk

Need Direct Technician Assistance?

Connect with certified TV technicians for motherboard matching, bootloop troubleshooting, and verified USB firmware guidance.

Direct 1-on-1 Consultation Reply in 15–30 Mins USB Flashing Help Included
WhatsApp Technician Support
Direct Phone Helpline +91 79003 01435 Available 10 AM – 8 PM IST