I even gently lifted the logic board from the internal battery connector, held it in place with plastic spludgers, plugged the MacBook into a charging brick, and tried the key combinations above.

What else can I do before testing the logic board...which I haven't found any guides to do at the moment.

Can I test the USB-C port with a multimeter to check for connectivity?

Any advice that helps me diagnose this would be great!

Edit: I've attached a photo of the board.

⟐ Answered August 02, 2023 at 5:51 MST

Doesn't turn on.

When trying to turn on, LCD backlight comes on for about one second, and nothing happens after that, also there is no image while that happens or after (when shining a light on LCD).

Negotiates and takes 20v properly from charger.

Gives a chime when connecting the charger.

I'm a complete novice in board level troubleshooting, so don't be surprised if I don't know something obvious. I did read up everything I could find.

So far I think I've narrowed it down to something around the L8410 inductor.

Schematic says that after the inductor voltage should be around 45v, while instead it's 8.6 exactly like before it.

I assume something should pulse the input into it to boost the voltage for the backlight, but there is no pulsing. Just stable DC.

Probably that "something" is U8401 which controls the Q8406 MOSFET which should be doing the pulsing.

Are there any preconditions to U8401 initiating the pulsing? Or should I assume that it's dead?

Edit: BKLT_EN_R coming from CPU to U8401 does go to 3.3v and stay there.

As for the differences, I'm using a brd file for 820-00244, so far the only difference I found was at the XW8401 slot, which shows a component in the file but not present on the board.

⟐ Answer accepted May 15, 2024 at 1:29 MST

⟐ Commented May 10, 2023 at 17:38 MST

Please tell me any solution on how to restore the BootCamp partition data back to my Mac hard drive and regain access to it?

⟐ Answer edited October 01, 2018 at 9:28 MST

I bought this MacBook knowing that it didn't turn on. Now I'm under the hood, the light next to the battery disconnect is lighting up, but still no boot. When I plug it into power without the battery connected, the light comes on, but still nothing. The area around the keyboard warms up like my working MacBook Pro when charging. The MacBook is taking power but is not turning on. I've checked the charge port (no physical damage), all the ribbon cables (also no damage), and still nothing. Could it be the actual power button? Idk what to check next.

⟐ Commented September 26, 2025 at 20:06 MST

i own a 2016 MacBook and the system itself is going good. However the screen is showing some wear and the keyboard is starting to melt (to be expected).
i found a MacBook 2017 for parts (motherboard failure).
how feasible would a full transplant be? Moving the 2016 motherboard to the 2017 body (keeping the 2017 battery)

let me know what you think, thanks!

⟐ Answer accepted November 02, 2022 at 6:53 MST

I have reset SMC & PRAM to no avail. Running first aid in disk utility finds nothing. There is only 1 USB-Type-C connector on the side so target mode isn't possible AFAIK. .. When I go to internet recovery it prompts to install Ventura but there no option to select any disk to install it on..... no option for erase in disk utility..... This is what I have tried

Opt+Cmd+R - Disk utility shows only the base system 2.14 GB

Termianl just lists 16 disks no larger than a few KB to 6 MB

Only 1 partition size is 3.22 GB

Sorry for the poor images..... Please leave a comment until we can post a definitive working answer as I found a few posts online and there seems to be a fix for it but for me it didn't work and was unclear on if or how they did it.... I am sure there are many out there who had this same issue and would love to know how to fix this if possible....

I managed to boot externally and in the about this mac (Storage) it only shows the external drive size. Disk utility shows NOTHING internal. Apple diagnostics report no issues found. I cannot run the terminal command system_profiler SPSerialATADataType as command not found.

I guess it is increasingly looking like it had some sudden SSD Failure and the end of the road for this Mac. @jadonlyon & @oldturkey03 if they can shine some light for me.

SSD is dead and the unit shall be returned to the owner to bin sadly.

UPDATE: R7237 Resistor ? 2017 Macbook 12" A1534 NO SSD Repair

⟐ Commented September 19, 2024 at 4:30 MST

⟐ Commented May 27, 2024 at 8:04 MST

I have got many dead MacBooks 12” retina 2017, and obviously, they all have same issues with a burned USB-C port. Anyone else facing this kind of issue?!?

⟐ Answered January 30, 2024 at 16:24 MST

My MacBook from 2017 (model 1534) has a single USB-C port. The port is used for charging and it works well. However, it does not work when plugging in any other peripherals such as a USB mouse. This computer model only has a single USB-C (or any other port) so it causes a lot of disruption.

I have tried turning on and off, cleaning the port and have reset the SMC without any luck. Any ideas on how to fix it?

⟐ Commented August 24, 2023 at 15:02 MST

⟐ Answered January 20, 2023 at 13:27 MST

Thank you!

⟐ Commented October 03, 2022 at 11:46 MST

⟐ Answered April 04, 2022 at 8:06 MST

I plan on buying a used MacBook 2017 Retina. The picture shows, that it has a display error on the right hand side. As I will mainly use it with external displays attached, I don’t worry too much about it, but would like to know, if this is a common problem that is easily fixable or a bigger problem that needs a fix from apple?

Thank you all for your help,

Stefan

Hallo Leute,

ich habe vor mir ein gebrauchtes MacBook 2017 Retina zu kaufen. Auf den Bildern sieht man, dass es einen Displayfehler auf der rechten Seite hat. Da ich es hauptsächlich über externe Monitore betreiben werde, stört mich das nicht allzu sehr, aber ich würde gerne wissen, ob dies ein bekanntes, leicht zu behebendes Problem ist, oder aber etwas schwerwiegendes, was eine Reparatur von Apple benötigt.

Danke für eure Hilfe,

Stefan

⟐ Commented February 07, 2022 at 5:14 MST

⟐ Answered February 01, 2022 at 14:17 MST

⟐ Commented October 19, 2020 at 19:27 MST

It boots and runs fine from an external drive but when I try to install a system it tells me it has to be connected to a power source but there is only the one USB c port.

Any ideas on how to get a system on it?

⟐ Answer accepted April 18, 2019 at 4:18 MST

This is what my computer looks like when I start it up. I unplugged it this morning and then opened my screen up to this. The white lines seem to be heavier wherever there is an application open/app icon on the screen. When I shut down my computer the white lines go away and it goes fully black once again. How do I fix this problem?

⟐ Commented November 08, 2020 at 12:24 MST

​​Hello,

I replaced the battery (Battery Model A1705) for my Macbook 12" 2017 (Macbook Model A1534 - EMC 3099). After battery replacement, the trackpad and keyboard and audio no longer work and laptop speed is slower than before replacement and only the power button is working well.

To fix it, I just purchased a replacement for all flat cables such as keyboard and trackpad, LCD, audio, power and replaced all flats cables with care, The Issue not resolved, so I purchased a replacement trackpad and keyboard and replaced them carefully, But the issue is still not resolved.

By research, I found out the reason for the slow speed of the laptop is maybe the CPU on SMC mode and not using all power for safety and protection, As the keyboard is not working, I can not do SMC reset, I just connected the external keyboard and mouse, they are working well, tried to do SMC via external keyboard but it seems not possible or maybe I do not know how to do it exactly.

By the way, with the SMC reset my issue may still remain, So if you have any experience with this issue or if you have any recommendation and solutions please let me know.

Thank you.

Update: Result of Macbook Diagnostics: PFM006 and PPN001

⟐ Answer edited May 28, 2023 at 19:57 MST

and on the link apple was suggesting i buy a separate trackpad to use with my laptop

i’ve tried all the keys and power button hacks that i have found on line and have been successful twice but then after 30 minutes i will go back to having the same issue my laptop works i’m just not sure as to why the keyword and trackpad randomly freeze and doesn’t allow me back inside the laptop

can someone please help me find a solution to my problem?

⟐ Answered March 22, 2024 at 0:11 MST