iFixit - Answers With Device "Nanocomputers"

Raspberry Pi Model B: no green light showing

Sat, 19 Nov 2022 07:14:14 -0700

have red light but no green light

⟐ Answered November 19, 2022 at 7:14 MST

Raspberry Pi B plus: Red and green light...

Sun, 12 Sep 2021 18:24:29 -0700

my raspberry pi 2 first worked for a couple of days, but one day when i plug in the power the green light just stayed on, it was overheating rapidly, also making a squeaky noise and was not booting. After a couple of days i left it and this time when i tried booting both the red and green light would come on and would not boot to my os.

can some one please tell me what to do?????

⟐ Answer edited September 12, 2021 at 18:24 MST

Intel NUC6i7KYK: What screws is used on NUC6i7KYB?

Mon, 18 Nov 2024 07:56:53 -0700

I'd like to replace all of them to appear new

⟐ Commented November 18, 2024 at 7:56 MST

Raspberry Pi Desktop: Raspberry pi 4 Not Booting Solid Red One Green Flash

Tue, 01 Oct 2024 14:22:08 -0700

Hello I have a raspberry pi 4 and after it was lying for some time in a drawer I decided to use it for something and it doesn't work. I'm sure it used to work before and even though it was just lying in a drawer it just stopped working. When I plug it in the red led is solid and green led blinks for maybe half a second. I tried multiple SD cards (known good ones) and multiple power supplies (also connected it to laboratory power supply to make just to make sure but the same problem, also it's constantly drawin like 300ma).

There is no display over HDMI with or without the SD card. Also pi is acting the same no matter if the card is plugged in or not (same as described before red light one short green blink when connecting power). All voltages seem to be present but there is no power on the USB ports even though there is 5v at GPIO, the SD card and the ethernet seem to be getting powered as well. SD card slot is in good shape as well.

https://imgur.com/a/x2ZYtXS images of the pi
Thanks for help

⟐ Commented October 01, 2024 at 14:22 MST

Arduino UNO: This isn’t really a repair I just need someone with some experience

Thu, 09 Nov 2023 14:43:28 -0700

This morning I accidentally fried my R3 I don’t know how, it was hooked up to the 9V battery and it was running blink as a test suddenly the lights went out and the 47uf capacitors started getting hot. So it’s time for an upgrade I have the R4 on its way but is there any way to get the R3 temporarily working

⟐ Answer accepted November 09, 2023 at 14:43 MST

Intel NUC8i7BEH: NUC8i7BEK same fan as NUC8i7BEH?

Mon, 21 Nov 2022 12:15:40 -0700

is the replacement/cleaning of the fan the same for the model NUC8i7BEK?

is the fan the same one?

can this guide be used for the model NUC8i7BEK too?

⟐ Answered November 21, 2022 at 12:15 MST

Raspberry Pi B plus: Network (Wired and wireless ) sectors and usb without electricity

Sun, 11 Oct 2020 09:29:01 -0700

My model is raspberry pi b.

When I connect the device to the power, it starts to boot without problems, but there is a flashing yellow mark on the corner of the image.

But the usb section and the network segment do not work.

I replaced the power adapter and cable, but the problem still failed.

There is a part called polyfuse that I tested, which seemed to be healthy.

⟐ Answered October 11, 2020 at 9:29 MST

Intel NUC6i7KYK: My Intel Nuc will not boot can you help?

Tue, 10 Nov 2020 11:42:24 -0700

My Intel Nuc will not boot can you help?

Raspberry Pi 400: Windows 11 os WIFI not working on raspberry pi 400

Mon, 05 Jun 2023 09:24:04 -0700

Please help raspberry pi400 install windows 11 os but wifi driver not working

⟐ Answered June 05, 2023 at 9:24 MST

Raspberry Pi B plus: windows vista on raspberry pi 3 B+

Thu, 26 Mar 2020 09:02:58 -0700

is it possible to put windows vista on raspberry pi 3B+ I have the requirements I just want to make sure its possible before continuing

⟐ Commented March 26, 2020 at 9:02 MST

Nanocomputers: What is this device?

Sun, 26 Mar 2023 20:36:31 -0700

Have this little box which I am assuming is a small computer, however I am having trouble identifying it.

I tried connecting it to an external monitor to no avail - it showed no output.

Thanks!

Pictures:

https://cdn.discordapp.com/attachments/1...

Added Pictures:

https://cdn.discordapp.com/attachments/1...

⟐ Commented March 26, 2023 at 20:36 MST

Raspberry Pi Desktop: Pi3 B+ struck by lightning

Thu, 20 Oct 2022 01:27:29 -0700

Hello, in Summer a lighting stuck my pi and burned it together with its power adaptor and my tv. The tv service responded that the overload came though the HDMI port.

So, here are some pictures of the pi:

and the power adapter

I wanted to know if there is a change to replace the burned component and give it life again... Or should I considered a dead pi?

Thank you in advanced.

⟐ Answer unaccepted October 20, 2022 at 1:27 MST

Raspberry Pi Model B: I have a burned component and need help on how to disable this

Sat, 19 Dec 2020 09:18:06 -0700

I have a burned component and need help on how to disable this. Here is the burned component

⟐ Answer accepted December 19, 2020 at 9:18 MST

Raspberry Pi 5: Power supply burnt out

Thu, 25 Sep 2025 09:35:42 -0700

My raspberry pi 5 burned out.I suspect the chip behind the TYPE-C burned out. I tried using GPIO for power supply and it booted up normally. I wonder if there is any way to repair it.

And I found a capacitor or resistor short circuit,anyone know its value?thanks

⟐ Commented September 25, 2025 at 9:35 MST

Intel NUC8i7BEH: NUC is not powering on

Sun, 18 May 2025 05:43:57 -0700

My NUC is not powering on.

I did a visual inspection and found one IC that is burnt.

It appears the power adaptor malfunctioned and provided over voltage.

However, I could not find where I can buy it.

Does anyone know about this part?

⟐ Commented May 18, 2025 at 5:43 MST

Raspberry Pi 3 Model B: Raspberry Pi 3B+: HDMI not working

Mon, 29 Jan 2024 08:52:07 -0700

Hi iFixers. I have a couple of Raspberry Pi 3B+ boards that are fully functional but don't detect and therefore don't show any picture over HDMI. It's not a software bug and the connector is fine. I'd appreciate any hints on what chip controls HDMI output on those boards - maybe I'd be able to replace it

After spending some time examining things around on the board I believe the fault might be due to the IC pictured below or the components to the right. Does anyone know what those are? Any hints would be greatly appreciated 🙌🏻

And one more weird detail - on the marked pin I get around 3V on the faulty boards instead of around 1,1V on a healthy one - what might cause this? Is this still that HDMI05-CL02F3 chip?

⟐ Commented January 29, 2024 at 8:52 MST

Raspberry Pi 3 Model B: Raspberry Pi 3B+: USB and Ethernet not working

Sat, 13 Jan 2024 18:26:16 -0700

Hi iFixers :) I have a Raspberry Pi 3B+ board that is fully working except for the USB and Ethernet ports. I'd appreciate any hints on what chip controls those ports and whether it can be replaced 🙏

⟐ Answer accepted January 13, 2024 at 18:26 MST

Intel NUC6i7KYK: Question identifiying SMD Component - Capacitor?

Mon, 19 Dec 2022 09:36:26 -0700

Hello everyone, I have a question that I posted on Reddit and got a few contradicting answers. I purchased this Intel NUC6i7KYK as "Parts" on eBay because it was power cycling. I originally thought it just needed some cleaning and new Thermal Paste, but that is not the case. I was looking at the bottom of the board, and found what I believe to be a blown capacitor. I attached a stock picture, and circled the component in blue. I know it is impossible to identify the exact specs of this part, but at least knowing what type of part it is will point me in a direction to troubleshoot. Since the board is dead, I really have nothing to lose by trying to fix it and learn from it. According to Reddit, it is either a fuse, capacitor or resistor. One suggestion would be to put a 0ohm resistor in and try it, but I don't want to do that if it is actually a capacitor. Thank you in advance!

⟐ Answer accepted December 19, 2022 at 9:36 MST

Intel NUC: How to weld a HDMI port into NUC5i7RYH?

Tue, 19 Jul 2022 15:20:04 -0700

Hi everyone,

The HDMI port of my NUC came off the motherboard, it seems the weld was not good.

I visually inspected the the motherboard and I can not see any damage.

Also I managed to remote the pc with teamviewer, so all the rest seems to be working fine.

Do you know where can I buy a new HDMI (mini) port for NUC5i7RYH ?

I know a bit of welding but it would be great if someone can help me with best practices or advice on how to do this successfully.

Thanks in advance!

I am really grateful for your quick answer! I am attaching to this message a couple of pictures, hopefully they are of any help. If not please let me know, more than happy to upload more. Also I am based in London.

In regards to the weld, besides the 4 main pins, how do I need to handle the micro pins. Do I need to weld them as well? Or they just need to be in contact. I am bit worried about misalignment or false contact.

Thanks again for your help!

⟐ Answer edited July 19, 2022 at 15:20 MST

Arduino Nano: Not receiving any codes

Tue, 03 Mar 2026 23:15:41 -0700

It couldn't receive any code