my vizio remote stopped working with the tv, but the phone app still works

Diagnosis

The fact that your Vizio mobile app still controls the TV confirms that the TV's network card and internal logic board are functioning correctly; the issue is isolated specifically to the communication link between the physical remote and the IR/Bluetooth receiver on the V505-J09 chassis. This usually occurs due to a "pairing desync," where the remote's unique ID is no longer recognized by the TV's firmware, or a complete depletion of voltage in the batteries that prevents the remote from sending a strong enough signal to trigger the sensor.

Another common cause for this specific model is "IR interference" or a blocked signal path. The V-Series uses an infrared receiver located at the bottom bezel; if there is a soundbar or decorative item obstructing the bottom-center of the screen, the remote will fail while the app (which uses Wi-Fi) continues to work perfectly. To confirm if the remote is actually sending a signal, you can use your smartphone's camera: point the remote at the camera lens and press any button. If you see a flickering purple or white light through the screen that is invisible to the naked eye, the remote is transmitting, and the issue is likely a pairing or receiver error.

How to Fix It

Follow these steps precisely to restore the connection between your Vizio V-Series remote and the V505-J09 TV:

1. Remove the battery cover and replace the existing AA or AAA batteries with brand new, name-brand alkaline batteries. Do not use rechargeable batteries, as they often output 1.2V instead of 1.5V, which can cause intermittent pairing failures on Vizio remotes.
2. Power cycle the TV by unplugging the power cord from the wall outlet. While the TV is unplugged, press and hold the physical power button on the back or side of the TV chassis for 30 seconds to drain any residual capacitance from the motherboard.
3. Plug the TV back into the wall and turn it on.
4. Ensure there are no obstacles (like a Soundbar) blocking the bottom bezel of the TV.
5. Point the remote directly at the TV sensor from a distance of 3-5 feet.
6. Press and hold the Input and Volume Down buttons simultaneously for exactly 5 to 10 seconds.
7. Watch the LED indicator on the remote; it should blink twice, signaling that the pairing handshake has been completed.
8. Test the Home and Menu buttons to verify connectivity.

If That Didn't Work

• Perform a Hard Remote Reset: Remove the batteries from the remote. Press and hold every single button on the remote keypad at least once, and hold the power button for 20 seconds. This discharges any stored electricity in the remote's capacitors and clears the internal cache. Reinsert the batteries and attempt the pairing sequence again.
• Check for IR Interference: Some high-efficiency LED light bulbs or fluorescent lamps emit infrared noise that can "blind" the Vizio receiver. Turn off all lights in the room and try the remote again. If it works in the dark, you have a light source interfering with the signal.
• Update TV Firmware via App: Since the phone app still works, navigate to System > System Updates within the TV menu using the app. An outdated firmware version on the V505-J09 can sometimes cause the Bluetooth/IR receiver to glitch, and a software patch often resolves remote connectivity bugs.
• Test the IR Receiver: Use the physical buttons on the TV (usually located on the back or bottom) to change the volume. If the physical buttons work and the app works, but the remote (after a reset) does not, the IR receiver window on the TV bezel may be damaged or the remote hardware has failed.

Heads Up

• Avoid using "Universal" remote batteries that are low-cost; Vizio remotes are sensitive to voltage drops, and a 10% drop in power can stop the pairing process even if the buttons still feel responsive.
• If you use a soundbar, ensure it is not sitting directly in front of the IR receiver window at the bottom of the V505-J09 frame, as this is the most common cause of "broken" remotes.
• Keep the remote away from strong magnets or high-powered wireless routers, as these can occasionally disrupt the pairing frequency of the V-Series remotes.
• If the remote continues to fail, verify if you have a "Smart" remote (Bluetooth) or a "Basic" remote (IR). Only the Smart remotes require the Input+Volume Down pairing sequence; Basic remotes work instantly upon battery insertion.