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Insignia Product Specialist
Posts: 1,254
Registered: ‎08-27-2015

Re: All HDMI Ports showing no signal

Hello Robbie119,

Thank you for responding!

 

Try unplugging the TV from the power for at least a minute. While it is unplugged, make sure you have good HDMI connections to all devices. Then plug in and turn the TV and all your devices on.

 

What devices are you trying to connect to the TV? Do these devices work on other TVs? Have you tried different HDMI cables. 

Regards,
Ryan
Insignia™ Support

Visitor
Posts: 6
Registered: ‎12-16-2015

Re: All HDMI Ports showing no signal

Xbox one, yes it works in other tv's
Insignia Product Specialist
Posts: 1,254
Registered: ‎08-27-2015

Re: All HDMI Ports showing no signal

Hello Robbie119,

Thank you for responding!

If the Xbox works on other TVs the issue is more than likely the TV. Do you get any sort of message on the screen when you connect it and change to the correct input?

Regards,
Ryan
Insignia™ Support

Visitor
Posts: 6
Registered: ‎12-16-2015

Re: All HDMI Ports showing no signal

It reads "No hdmi detected" or something like that. 

What should I do? 

Insignia Product Specialist
Posts: 1,254
Registered: ‎08-27-2015

Re: All HDMI Ports showing no signal

Hello Robbie119,

Welcome to Community@ Insignia™!

At this point, it seems the TV has a hardware failure. This is evident because the Xbox works on other TVs fine but not this one. I would recommend speaking to a repair shop about possibly getting it repaired. 

Regards,
Ryan
Insignia™ Support

Newbie
Posts: 1
Registered: ‎12-26-2015

Re: All HDMI Ports showing no signal

I'm having same issue.   All hdmi ports suddenly quit working for all devices.  Dvd/Sony google box will run on another tv using same cable.  Time warner cable box won't work on any tv with any cable so replacing box Monday.  I too did as others: unplugged all devices and tv; resets to factory default; followed manuals for reinstall; confirmed hdmi cables working; confirmed cable working on other TV.  Clearly issue is hdmi ports on this TV.  . All 3 all at once for no known reason.  (Surge protector and nothing damaged.)

 

model Ns-42L780A12, firmware v2.05

 

this thread is 2 years old and I've seen about 6 other threads -- with thousands of views and many years old -- all about hdmi ports failing. After much runaround by users via Insignia "support" and this "community," the advice tends to be take to Geek Squad and get fix, free if under warranty which it is usually not.  THIS IS KNOWN PROBLEM AND FRAUDULENT TO BE SELLING WITH KNOWN DEFECT and relying on warranty to get extra $$ to fix.  John at Insignia -- I've seen you answer this question repeatedly.  Anything new besides come spend more $$???

Visitor
Posts: 6
Registered: ‎12-16-2015

Re: All HDMI Ports showing no signal

Well said Winston,  Insigna,  how about mailing out a replacement hdmi board free of charge.  

Insignia Product Specialist
Posts: 1,254
Registered: ‎08-27-2015

Re: All HDMI Ports showing no signal

[ Edited ]

Hello Winston,

Welcome to Community@ Insignia™!

 

You have done all of the troubleshooting that I would have recommended. If you have a device connected and turned on, you should get a signal to the TV. If you are not getting a signal on any HDMI input, with multiple devices that work on other TVs, then the issue is a hardware failure in the TV. 

 

Unfortunately, this model of TV is going to be outside of the manufacturer warranty. Do you know if you purchased any extended warranty? If you are unsure if you purchased an extended warranty, PM me your name, phone number and email info and I can check the Best Buy system for you. 

Regards,
Ryan
Insignia™ Support

Newbie
Posts: 1
Registered: ‎01-08-2018

Re: All HDMI Ports showing no signal

I know these are old posts.....joining the community as my daughter and grandson have the Insignia TVs with same issue - HDMI ports not working.   TV is recognizing that something (ie ROKU) is connected to HDMI Port, but they get no signal error.  Have worked with Insignia support team on resetting TV and other troubleshooting, and told that TV is out of warranty and only options are to ask and pay for TV repair to look at it, or to buy a new TV.    

 

With this many complaints on defective HDMI ports, one would hope a better solution would be made available.  It's not like only one HDMI port does not work......both ports are defective.   Imagine buying a car that states it has a radio, but the radio doesn't work .... and you're told by dealer that you have to go to a mechanic and pay to have it fixed or buy a new car.   

 

Lemons of TVs --- would not recommend to anyone due to poor quality and poor support.