My Apple TV4 is completely dead. No light when the power cord is plugged in or anything. I dismantled the thing so warranty is also gone, but what I saw when I checked the power supply is that it is working perfectly (outputting 12V). However, when the logic board is connected, the power supply goes down to 0V. After measuring the motherboard, I saw that there is a short between the positive and negative terminal of the motherboard.

Does anybody have any idea if this is a common fault, if or how to fix it, and were a spare logic board can perhaps be found?

⟐ Commented March 16, 2026 at 4:16 MST

It displays the Apple logo that you'd normally see during the boot process. After the light on the front of the device blinks 9 times, it seems to immediately reboot itself.

On just one occasion since this began, iTunes was able to see the Apple TV temporarily when I had connected it with a USB-C cable (with the intent to be to do a software restore on it, if possible).

I have tried two power cables (borrowed from another working Apple TV), two HDMI cables (not perceived to be an issue since we can see the boot logo on screen), different power outlets, and even different televisions.

There are articles on holding the TV and Menu buttons on the remote for 10 seconds to force it to restart. The Apple TV does seem to react to the remove (the light on the front will flash in response to it), but this did not permit a full boot.

Thoughts on what hardware components inside of this would be worth swapping out to get this working again?

⟐ Commented February 25, 2026 at 20:03 MST

My Apple TV is plugged via ethernet and cannot get activated without ethernet or wifi

⟐ Commented May 17, 2025 at 13:43 MST

My Apple TV 4 has a defective bluetooth/wifi chip. So I found one on eBay, a 339S00045 chip, which seems to be the same as in the ipad mini and pro. I took my apple tv apart, but the chip doesn’t seem to be that easy to replace. Is that something that is even possible at this point?

Regards,

Pieltre

⟐ Answered March 19, 2025 at 6:44 MST

⟐ Commented August 07, 2022 at 11:12 MST

Our Apple TV 4th Generation Siri Remote was accidentally submerged in water for about a minute. When it came out, we dried it out for several days in a bowl of rice. The Siri remote actually still works, but only when it is plugged in to a power source with the Lightning cable. Once it is unplugged, it disconnects and stops working completely.

This leads me to believe that it is a problem with the battery. Is it possible to find and install a replacement Lightning port/battery assembly as shown here:

Apple TV 4th Generation Teardown

Thanks!

⟐ Commented February 11, 2022 at 9:53 MST

any other ideas guys?

⟐ Commented June 14, 2021 at 15:13 MST

Any help would be awesome.

⟐ Answered September 28, 2020 at 21:10 MST

Reset, factory reset, nothing allows me to connect over WiFi, Ethernet connection goes out sometimes every 5 seconds.

Not so bad on most apps but on Hulu every time the Ethernet goes out it pops up with a message that blocks out the whole screen.

⟐ Commented May 10, 2020 at 12:03 MST

⟐ Answered October 09, 2019 at 5:51 MST

⟐ Answer deleted July 05, 2019 at 8:02 MST

⟐ Commented May 03, 2019 at 11:18 MST

My hope is in you, iFixit guys who actually took these gadgets apart. One opinion in the 9to5Mac comments says it doesn't work, the other says it works.

I would really like a Remote Loop for iPhone photography, as all normal cameras have such loops, even much cheaper point and shoots than the iPhone.

I guess the main reason Apple does not advertise any such loop for iPhone is because chief designer Jony Ive would found it ugly. But it's still much more acceptable than any third party case + lanyard combo.

⟐ Answered April 04, 2019 at 10:34 MST

I just took the device to Apple Store and they instead asked me to buy a New Apple TV.

What could be wrong? Is someone facing a similar problem?

And a question for anyone who has disassembled the remote - do the microphones look easy to remove / unsolder / disable ? Has anyone tried ?

Thanks a lot !

a few days ago an Apple TV 4th gen came in and I've been attempting at perhaps fixing it up. Of course, it does not power on, and connecting it to a PC or Mac by USB-C did not show any signs of life either. The background of the device is unclear, so I cannot state whether it was dropped or how exactly it stopped working. Opening it up and probing around made me come to some conclusions:

- The internal power supply still works and is delivering its supposed 12 Volts

- The main pcb shows no signs of water damage or any other type of damaged/discolored components

- Hooking the main pcb up to 12 Volts on a power supply shows that it draws about 130-170mA

- One specific IC, the 338S00057, which barely has any information on the internet about it, is getting rather warm/hot when hooking the pcb up, since this IC is probably responsible for sustaining several power rails, I was thinking perhaps a certain rail is shorted to ground, however a short would result in a much greater current draw, so I am not sure

- The IC might also be a memory controller, as its part name is similar to the 2015 Retina Macbooks Memory controller 338S00055

The IC marked in green is the one getting hot.

As there are no schematics for Apple TVs and these issues rarely occur, I am not expecting this to be fixable. Someone suggested to check the CPU clock crystals, but I can neither buy replacements of them or read them out because I dont have an oscilloscope.

Suggestions would be great, thanks in advance!