⟐ Commented 九月 24, 2025 at 1:15 GMT-7

⟐ Answered 三月 19, 2025 at 0:15 GMT-7

按下开机键后，屏幕没有反应，黑屏。键盘灯不亮，背面的苹果LOGO灯不亮。

只有风扇声。

⟐ Answered 十二月 03, 2024 at 1:40 GMT-7

Can SSD be replaced?

My SSD storage is a bit small, I would like to change a little bigger drive, can be replaced?

⟐ Answer deleted 六月 05, 2020 at 3:41 GMT-7

去授权店进行检修说是屏幕出问题了，后面又去直营店天才吧进行检修，说是可能和系统有关。但是我已经进行过抹盘重装，系统无论是升级到10.4还是10.15都会出现这个问题。

另外我装了双系统，在windows下面没有出现过此种情况。

黑屏状态如图（背光正常）

一、ssd是否可以拆换

二、是否可以使用不是苹果定制版的ssd

三、例三星的ssd接口是否需要转换器

⟐ Answered 五月 13, 2026 at 13:17 GMT-7

The Macbook turns on only when it is plugged in, but if I unplug it while it's on, it can stay on for hours (with the fan working at full speed).

Here's what I've done so far:

1. 1. Tried a whole bunch of combinations of draining and then recharging the battery, restarting in recovery mode, etc.
2. 2. Tried two other battery data cables from seemingly reputable companies - I even tried a tape trick to try for a better connection, it did nothing in my case
3. 3. Got a second replacement battery from ifixit (they kindly sent one for free)

So far, none of these attempts have made a difference.

To me, it seems to be an issue with the data transfer from the battery to the rest of the computer, but I think I've ruled out a good number of culprits. Usually, I'm able to figure these problems out on my own, but not this time. Any help would be highly appreciated!

⟐ Answered 五月 13, 2026 at 9:17 GMT-7

⟐ Commented 五月 12, 2026 at 15:08 GMT-7

I plug it to this 2013 2013 A1502 and it is charging but there is no light showing.

I tried with other chargers and it is the same, rarely getting a light that stays on.

SMC & PRAM resets, Pins are nice and clean, chargers not getting hot, laptop has a new battery with 2 cycles, Basically the laptop is charging normally but there is just no light on the charger. What goes? Going bad charging board? I guess I need to swap one over and see if that made any difference? It seems to charge for a minute or 2 at no more than 10w before it displays connected but 0w charging.

⟐ Answer accepted 五月 12, 2026 at 5:56 GMT-7

⟐ Answer accepted 五月 11, 2026 at 14:47 GMT-7

I appreciate the comments here; thank you! What actually worked: I downloaded a copy of catalina .dmg and used Balena Etcher on linux to burn it to a thumbdrive and booted the thumb drive by holding the Option button while powering up. I was then able to launch the terminal from the installer's menu bar. From the terminal, I was then able to run: nvram AutoBoot=%00 and this disabled that behavior (power on when power cable connected / disconnected). This command is only available in the MacOS image, so this was the missing step to be able to get access to it. Thank you!

⟐ Edited by author 五月 11, 2026 at 7:48 GMT-7

I have MacBook Pro M4 A3112.(Nov'24). this is my first Macbook.

Initially display screen had some damage, so got the screen replaced and i notice both Wifi and Bluetooth has stopped working.

I took back to the repair guy who helped to replace the screen, but he has no clue why Wifi and Bluetooth are not working.

please find the attached the screenshots and photos I took as part of initial diagnosis I could do.

Please advise, what could be the issue and how to resolve this ?

Thanks

RB

Hi @danj

I did reformat whole Macbook and reinstalled OS. Seems issue still persists.

I connected the MacBook to my router using Rj45 cable with the help of connector so I can access wired network connection to internet.

However I tried to do offline diagnostic and I got the error CNW001 . Have attached screenshot.

Power charger wasn't connected to macbook when I ran the diagnostic so the error PPP020 can be ignored in the image here, as I see the MacBook is working fine when charger is connected.

Let me know what option i have to resolve this CNW001 error.

I am using wired connection for Internet for now, not a substantial solution.

Thanks

RB

I used an Ethernet cable and was able to connect to internet.

The pic was taken with ethernet cable on !

⟐ Commented 五月 10, 2026 at 18:25 GMT-7

This laptop worked flawlessly up till Feb 2021, when the battery died —seven years, kudos for the quality control! I had iFixit's for a good reputation brand and decided to buy a replacement battery to extend my machine's life. Well, the new battery worked as expected, but died suddenly on Sep 2023, just 2 ½ years after being installed.

Since I still had use for this laptop, I decided to buy another replacement from iFixit on Oct 2023. This battery lasted exactly the same as the first one: it died on me last month (Apr 2026).

So, I'm wondering if it's just me or these items last less than half —almost a third— as an original Apple battery. If I had known, I would have taken the laptop to the original service center for repair. Anyone from iFixit here to answer my question? Because I'm about to buy from another provider, since my two purchases didn't live up to expectations.

⟐ Commented 五月 10, 2026 at 4:09 GMT-7

Basically, is my Anti-glare coating worth removing and if it is, which method is least likely to cause damage? Also, is image quality affected other than the anti glare properties if I were to remove the coating? Like a loss in color accuracy or something like that.

UPDATE

I used some Kirkland signature baby wipes to remove the layer but it was taking forever. I used Clorox wipes and that seemed to work too. Overall took about 30-45 minutes to remove the majority and about more than an hour to get it all off completely. To make sure it’s completely off use a flashlight and point it at the screen.

⟐ Commented 五月 09, 2026 at 20:09 GMT-7