1) While typing the key jumps to different places in the document.

2) The battery charges to 100%, in approx 4hrs to 50% then dies to 1% shut down. Apple suggests reset SMC, But the LEFT SHIFT KEY will not reset SMC.

⟐ Answer edited April 27, 2026 at 18:29 MST

Thank you

⟐ Commented April 27, 2026 at 9:55 MST

This is the second time I’ve replaced my battery with an ifixit battery and this is the second time this issue has came up. After replacing the battery and running the calibration cycle, I would use my laptop on its battery and somewhere around 70%-60% battery level, the battery level would just shoot down to 7%.

Initially on the first time around with replacing the battery, I just figured they sent me a faulty battery, but didn’t have time to buy another one and change it out, so i lived with the power adapter. I finally had a chance to replace it to a new battery, but the same thing just happened. Now, Im hoping to find some answers from you all if I have another faulty battery or some other insight on what it might can be.

Appreciate whatever insight provided!

UPDATE

Here’s a photo with the coconut battery app. In the screenshot under the “BATTERY (last 12 hours)” you can see the instant drop in battery level.

UPDATE #2

at 50% charge

at 100% charge

UPDATE #3

Screenshot charging from 0% to 50%

⟐ Answered April 27, 2026 at 7:38 MST

Battery Terminal & Data PORT. On my MacBook Pro 16” M1 Max, snapped off or broke off when putting in new battery and I believe that was the reason why the battery it was not being recognized by the board because of the logic board connector,

I’m in desperate need for someone who can help me fix or find the parts name or number

(Battery Terminal & Data PORT)

because I’ve tried, can’t find or get anything

⟐ Answer accepted April 27, 2026 at 7:20 MST

I have already:

1. Transferred the battery board data cable and ensured it is seated correctly in the ZIF connectors.

2. Verified that the T5 power connector pancake screw is snug and making a good connection.

3. Performed an SMC reset.

4. Tried leaving it on the charger to wake it from a potential deep sleep state.

Everything is snug and tight, but the new battery still shows no signs of life. Is there anything else I should check, or is it likely a defective part?

⟐ Answered April 27, 2026 at 6:32 MST

⟐ Answered April 27, 2026 at 4:10 MST

I just broke my Airport Card Antenna connector from the Airport Card. There are 2 connectors - "J1" and "J2"

J2 is fully broken from the airport card, but the WiFi is still working. Do you have any idea what is the "J2" connection for...? is it just for boost the signal ?

Thanks!

⟐ Commented April 27, 2026 at 0:38 MST

⟐ Commented April 26, 2026 at 13:09 MST

So I tried replace the battery on the MacBook Pro 2141 and the step where the battery flex cable needed to disconnected by accident I lifted the connector that snapped.

Can new connector be soldered back with ease or this one need more repair?

So, I brought to the repair shop they soldered, but claiming there is issue with motherboard - it not powering up (Please note still with old battery on laptop) but I never had any signs of motherboard going bad, it was working prior this. I asked for technical report, they refused - said we cannot provide that, our system not allowing to print report. Total bs! So first - I need that data on the laptop, so I need data extraction, or should I try something else before that. Thanks

⟐ Commented April 26, 2026 at 6:05 MST

Can you please call me I’m looking for an adapter that allows me to plug in a 2016/2017 non touch bar SSD drive to either a USB-A or USB-C port to read and test drives externally.

I would need about 10 of them.

Apple Blade SSD 5GA 34+22 Pins NVMe

⟐ Commented April 23, 2026 at 14:24 MST

I've torn the lid angle sensor while trying to clean the inside of my computer. I've attempted to work around this by putting the computer to sleep before closing the lid however the screen turns back on as soon as it is closed. Also strange that the screen will stay on indefinitely until the battery is dead, even though i've changed my power savings settings are to turn the display off after one minute of inactivity. Its odd because if the sensor is broken and the computer thinks that it's still open, it should turn off after inactivity. The only solution i've found is to shut the computer off before closing it which is not ideal. Finally, i've found replacement cables online however i've been reading that this will need to be calibrated by a professional? Can anyone confirm if this is true?

Thank You

Thank you all for the wealth of information. Just to provide an update to you all, i made sure to purchase a used angle sensor that was taken from a working computer and replaced it on my own. So far everything works as it should!

⟐ Answered April 22, 2026 at 19:22 MST

⟐ Answer edited April 22, 2026 at 19:08 MST

⟐ Commented April 22, 2026 at 16:00 MST

I have a problem with a Macbook Pro Mid-2012 (A1278). When I turn it on, the fan immediately starts spinning at maximum speed. When it gets to the login screen, I log in, and after two seconds of loading it shuts down. I've already tried to reset SMC and PRAM, but that didn't help.

My guess would be that it is a thermal sensor not working properly? Does anyone know were the thermal sensor is located? Or any other ideas?

Thanks!

Thanks a lot for your help so far.

I did a quick inspection on the pins and also the logic board, from what I can see and judge, it doesn't look too bad.

Here are some photos:

I will try to also find someone with the same charger. Although the charger seems to be in quite ok condition and I think is replaced at some point. The only thing I can see is that the chord is slightly squeezed at the top, but I don't think enough to not make it work properly.

⟐ Answer accepted April 22, 2026 at 13:00 MST

⟐ Answered April 21, 2026 at 8:31 MST

⟐ Answered April 20, 2026 at 4:48 MST

I'm assuming that I did not reconnect one of the cables properly on reassembly, so will be opening it back up, and it would be helpful if I had a sense of which cable to look at when I had it open, as the prior teardown was extensive, delicate, and time-consuming.

I used three different teardown guides as there isn't one specifically for this model (1st Gen M1 13" MBP, late 2020). The main teardown guide I used is this: MacBook Pro 13" Two Thunderbolt Ports 2020 Touchbar Removal

Unfortunately not every cable connection is identified.

Is there a map of the internal [microphone] connections available for this (or similar) Macbook Pros?

⟐ Answered April 19, 2026 at 19:19 MST

⟐ Commented April 17, 2026 at 17:20 MST

⟐ Commented April 17, 2026 at 16:02 MST

⟐ Commented April 17, 2026 at 7:49 MST