⟐ Answer edited 4월 28, 2026 at 18:21 GMT-7

However, spot 1 seems to be occupied by a Torx screw. That's also the case for my laptop.

Both my laptop and online guides can't give me any idea about where the Phillips screw should go.

Thanks in advance.

Citation: https://documents.cdn.ifixit.com/MiYk55l...

I am surprised by the fact that the Phillips screw is supposed to sit on top of the Torc screw.

⟐ Commented 4월 28, 2026 at 17:34 GMT-7

I wanted to try my hand at replacing the thermal compound, which was looking very crusty, on my old MacBook Pro. It was my first time, so I was quite prepared for any mistakes I might make. I was doing it for the experience.

As I removed the heatsink, I pulled it sideways rather than up, knocking it against the capacitor below the CPU.

After doing some dugging, I found out that it's the C1060 capacitor. See the boardview below and the relevant extract from the schematics.

The computer works. I ran Cinebench, and the kernel didn't panic or anything. I assume it's a matter of luck.

I am considering whether to buy a heatgun myself or give it to a professional. A heatgun costs around 80€. I have asked a local professional for a quotation.

Does anyone have any insight into this problem, any recommendations? Should I take it to a professional to get it fixed? Is it worth fixing? Is it worth buying the equipment to try and do it myself?

⟐ Commented 4월 28, 2026 at 5:11 GMT-7

I have a Macbook Pro from early 2011 and I had problems with the video, I took it to a technician to reball it and it supposedly worked, at the same time it failed again and this time they told me they had changed the video chip.

In the end, it failed again and when I took it to repair it again it did not work again.

I finally bought a used logic board in china and was able to successfully install it as a replacement for the deceased one.

But I have the following problems:

1 The battery or battery charger does not work so the fans run at full speed.

2 I was able to get it to boot but it does not recognize the SSD.

3 I put the original hard disk (unfortunately it had been used for a windows pc) and tried to install different versions of OS

- Yosemite USB installation (failure to finish preloading the USB, the computer restarts and the installation begins again)

- Installation via USB of El Capitan (failure to finish preloading the USB similar to Yosemite) but then I was able to install it with "Clover" and the installable image of El Capitan. The installation was successful but when the mac tries to start it reboots before finishing the progress bar with the apple at the start. This installation only works failsafe and I cannot start the diagnostic mode (D, cmd + D, option + D) nor the recovery mode (R, command + R)

- Recovery using time machine, since I have a copy of High Sierra, I recovered the complete installation but the behavior is the same. Fails to start unless in safe mode.

- Currently installing a minor version (mountain Lion) install the first stage, restart and start installing the second stage. it always restarts after 30% and starts again.

4 In the El Capitan version I uninstalled the drivers for the dedicated video card, hoping that was the problem, but I never got it to boot normally.

I also did all the possible updates and only the installation of "MacBook Pro EFI Firmware Update 2.7" fails because when the Mac restarts to do the update, it restarts again and again and only continues in safe mode. when I look for if something needs to be updated, "MacBook Pro EFI Firmware Update 2.7" reappears

Please if you can tell me what steps to follow or some guide would be saving me.

I am in Argentina and the prices to take this equipment to an official service are exorbitant and unreliable.

Hi @danj , you really blew my mind!

First of all thanks for your help and advice, in my many searches I found many of your contributions and they were always very helpful.

I read quite a bit about it and to try and rule out that this was the problem and did the following:

Using my other computer (macbook pro early 2013) and internet recovery I installed mountain lion on a 16Gb pendrive. I put it in the macbook pro 2011 and by pressing option I told it to boot from it.

To my surprise and for the first time it managed to start!

I even managed to install the update "EFI Firmware Update 2.7" ...

My joy ceased when it rebooted for no reason while trying to install the Safari update. (started downloading update and failed)

The mac rebooted again and while loading the OS it rebooted again! This behavior persists as long as a reboot failure occurs and I think I manage to stop this reboot cycle when I hold the power button and turn on again while pressing the option key to choose usb as startup.

As you had indicated to me that the cable could be the cause of the failure. Disconnect the hard drive cable from the logic board. I started again and it rebooted again :( again trying to update Safari.

Just in case, also disconnect the cable from the optical drive.

With both units disconnected it continues to fail.

Currently, it only has a 16 Gb USB as a hard drive.

Since I couldn't update Safari, I downloaded Chrome and managed to install it.

But as soon as I want to start Chrome and the icon starts jumping on the dock while loading, it restarts again ...

Here's my suspicion: Could this be a matter of memory? Currently, it has two 4Gb memories and before doing all these tests I had changed them for two 2Gb and it also failed.

Update (09/02/2021)

Here it is the report I got booting into safe mode

Anonymous UUID:       FA68BE48-FBB3-5DF7-60AE-31C84802DD15

Mon Jan  1 13:45:58 2001

• Panic Report *

panic(cpu 7 caller 0xffffff800578687f): Kernel trap at 0xffffff7f87f37964, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x0000000000000033, CR3: 0x00000000092ca000, CR4: 0x00000000000626e0

RAX: 0x0000000000000000, RBX: 0xffffff801e685580, RCX: 0x0000000000000202, RDX: 0xffffff80e614b77d

RSP: 0xffffff910ff7a890, RBP: 0xffffff910ff7a8c0, RSI: 0xffffff910ff7a960, RDI: 0xffffff801e685580

R8:  0xffffff910ff7a700, R9:  0x0000000000000008, R10: 0x0000000000000010, R11: 0x0000000000000000

R12: 0xffffff801e685580, R13: 0xffffff7f87fa7658, R14: 0x0000000000000000, R15: 0x0000000000004006

RFL: 0x0000000000010202, RIP: 0xffffff7f87f37964, CS:  0x0000000000000008, SS:  0x0000000000000000

Fault CR2: 0x0000000000000033, Error code: 0x0000000000000000, Fault CPU: 0x7, PL: 0, VF: 1

Backtrace (CPU 7), Frame : Return Address

0xffffff910ff79d10 : 0xffffff800566ae76

0xffffff910ff79d60 : 0xffffff8005794484

0xffffff910ff79da0 : 0xffffff8005786654

0xffffff910ff79e10 : 0xffffff800561ce60

0xffffff910ff79e30 : 0xffffff800566a8ec

0xffffff910ff79f60 : 0xffffff800566a6ac

0xffffff910ff79fc0 : 0xffffff800578687f

0xffffff910ff7a130 : 0xffffff800561ce60

0xffffff910ff7a150 : 0xffffff7f8636f553

0xffffff910ff7a290 : 0xffffff8005cb7ea7

0xffffff910ff7a2e0 : 0xffffff8005cb79b3

0xffffff910ff7a320 : 0xffffff8005cb5662

0xffffff910ff7a360 : 0xffffff800566ad31

0xffffff910ff7a3b0 : 0xffffff8005794484

0xffffff910ff7a3f0 : 0xffffff8005786654

0xffffff910ff7a460 : 0xffffff800561ce60

0xffffff910ff7a480 : 0xffffff800566a8ec

0xffffff910ff7a5b0 : 0xffffff800566a6ac

0xffffff910ff7a610 : 0xffffff800578687f

0xffffff910ff7a780 : 0xffffff800561ce60

0xffffff910ff7a7a0 : 0xffffff7f87f37964

0xffffff910ff7a8c0 : 0xffffff7f87f4f054

0xffffff910ff7a900 : 0xffffff7f87f4edbc

0xffffff910ff7a950 : 0xffffff7f87f4ed03

0xffffff910ff7a9b0 : 0xffffff7f87f4c4b1

0xffffff910ff7a9f0 : 0xffffff7f87f516d8

0xffffff910ff7aa20 : 0xffffff7f87f55d54

0xffffff910ff7aa70 : 0xffffff7f87f76e08

0xffffff910ff7aaf0 : 0xffffff7f87f781ad

0xffffff910ff7ab30 : 0xffffff7f87f78e9e

0xffffff910ff7ab80 : 0xffffff7f87f70360

0xffffff910ff7abc0 : 0xffffff7f87f74ac1

0xffffff910ff7ac20 : 0xffffff7f87f2cf23

0xffffff910ff7acb0 : 0xffffff7f8635ce99

0xffffff910ff7ad00 : 0xffffff7f8635c34c

0xffffff910ff7ad20 : 0xffffff7f87fffa71

0xffffff910ff7ad60 : 0xffffff7f880230b9

0xffffff910ff7bd20 : 0xffffff7f880244b6

0xffffff910ff7bd70 : 0xffffff7f88025f91

0xffffff910ff7be10 : 0xffffff8005c6b2c6

0xffffff910ff7be60 : 0xffffff7f88009240

0xffffff910ff7be90 : 0xffffff7f880093de

0xffffff910ff7beb0 : 0xffffff8005c6e685

0xffffff910ff7bf00 : 0xffffff8005c7135b

0xffffff910ff7bf50 : 0xffffff8005c73076

0xffffff910ff7bfa0 : 0xffffff800561c557

      Kernel Extensions in backtrace:

         com.apple.driver.AppleSMC(3.1.9)[0249444C-80D4-3184-9060-F70DA3BEB17D]@0xffffff7f86364000->0xffffff7f86380fff

            dependency: com.apple.iokit.IOACPIFamily(1.4)[95DA39BB-7C39-3742-A2E5-86C555E21D67]@0xffffff7f8635b000

            dependency: com.apple.iokit.IOPCIFamily(2.9)[F763C275-306F-358F-B6B0-0FD93486BD5F]@0xffffff7f85e94000

         com.apple.driver.AppleACPIPlatform(6.1)[B0282791-F78C-3A3D-A829-629AD847C7EA]@0xffffff7f87f27000->0xffffff7f87fc2fff

            dependency: com.apple.iokit.IOACPIFamily(1.4)[95DA39BB-7C39-3742-A2E5-86C555E21D67]@0xffffff7f8635b000

            dependency: com.apple.iokit.IOPCIFamily(2.9)[F763C275-306F-358F-B6B0-0FD93486BD5F]@0xffffff7f85e94000

            dependency: com.apple.driver.AppleSMC(3.1.9)[0249444C-80D4-3184-9060-F70DA3BEB17D]@0xffffff7f86364000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

17G14042

Kernel version:

Darwin Kernel Version 17.7.0: Fri Oct 30 13:34:27 PDT 2020; root:xnu-4570.71.82.8~1/RELEASE_X86_64

Kernel UUID: 5E83A13A-32F5-3604-8591-50E2F2F70DC6

Kernel slide:     0x0000000005400000

Kernel text base: 0xffffff8005600000

__HIB  text base: 0xffffff8005500000

System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 23321620454

last loaded kext at 23023073418: com.apple.kext.AMDLegacySupport 1.6.8 (addr 0xffffff7f88fa1000, size 1187840)

loaded kexts:

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.driver.AirPort.Brcm4360 1250.20.1a4

com.apple.driver.AppleIntelSNBGraphicsFB 10.0.4

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.SMCMotionSensor 3.0.4d1

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleHDAHardwareConfigDriver 281.52

com.apple.driver.AppleHDA 281.52

com.apple.driver.AppleGraphicsDevicePolicy 3.20.18

com.apple.AGDCPluginDisplayMetrics 3.20.18

com.apple.driver.pmtelemetry 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 6.0.7f22

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.eficheck 1

com.apple.driver.AppleHV 1

com.apple.driver.AGDCBacklightControl 3.20.18

com.apple.driver.AppleLPC 3.1

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleFIVRDriver 4.1.0

com.apple.driver.AppleThunderboltIP 3.1.1

com.apple.driver.AppleBacklight 170.12.6

com.apple.driver.AppleSMCLMU 211

com.apple.driver.AppleMuxControl 3.20.18

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleMCCSControl 1.5.5

com.apple.iokit.IOBluetoothUSBDFU 6.0.7f22

com.apple.driver.AppleUSBTCKeyEventDriver 254

com.apple.driver.AppleUSBTCButtons 254

com.apple.driver.AppleUSBTCKeyboard 254

com.apple.driver.AppleIRController 353

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.filesystems.hfs.kext 407.50.6

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.BootCache 40

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.AppleSystemPolicy 1.0

com.apple.iokit.SCSITaskUserClient 404.30.3

com.apple.filesystems.apfs 748.51.0

com.apple.driver.AppleSDXC 1.7.6

com.apple.driver.AppleFWOHCI 5.5.9

com.apple.driver.AppleAHCIPort 329.50.2

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 6.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 220.50.1

com.apple.nke.applicationfirewall 186

com.apple.security.TMSafetyNet 8

com.apple.security.quarantine 3

com.apple.driver.AppleIntelCPUPowerManagement 220.50.1

com.apple.kext.AMDLegacySupport 1.6.8

com.apple.iokit.IOFireWireIP 2.2.9

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.driver.corecapture 1.0.4

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 281.52

com.apple.kext.OSvKernDSPLib 526

com.apple.iokit.IOSurface 211.15

com.apple.iokit.IOSerialFamily 11

com.apple.driver.AppleSSE 1.0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.driver.AppleHDAController 281.52

com.apple.iokit.IOHDAFamily 281.52

com.apple.iokit.IOAudioFamily 206.5

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 519.21

com.apple.driver.AppleGraphicsControl 3.20.18

com.apple.AppleGPUWrangler 3.20.18

com.apple.AppleGraphicsDeviceControl 3.20.18

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleThunderboltEDMSink 4.1.4

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.iokit.IOGraphicsFamily 519.23

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.7f22

com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.7f22

com.apple.iokit.IOBluetoothHostControllerTransport 6.0.7f22

com.apple.iokit.IOBluetoothFamily 6.0.7f22

com.apple.driver.AppleUSBMultitouch 262

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.driver.usb.cdc 5.0.0

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.driver.usb.AppleUSBHub 1.2

com.apple.filesystems.hfs.encodings.kext 1

com.apple.driver.AppleUSBMergeNub 900.4.1

com.apple.driver.AppleUSBHostMergeProperties 1.2

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IOSCSIMultimediaCommandsDevice 404.30.3

com.apple.iokit.IOBDStorageFamily 1.8

com.apple.iokit.IODVDStorageFamily 1.8

com.apple.iokit.IOCDStorageFamily 1.8

com.apple.driver.AppleThunderboltDPOutAdapter 5.5.5

com.apple.driver.AppleThunderboltDPInAdapter 5.5.5

com.apple.driver.AppleThunderboltDPAdapterFamily 5.5.5

com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3

com.apple.driver.AppleXsanScheme 3

com.apple.iokit.IOAHCISerialATAPI 267.50.1

com.apple.iokit.IOAHCIBlockStorage 301.40.2

com.apple.driver.AppleThunderboltNHI 4.7.3

com.apple.iokit.IOThunderboltFamily 6.7.10

com.apple.iokit.IOFireWireFamily 4.7.2

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.usb.AppleUSBEHCIPCI 1.2

com.apple.driver.usb.AppleUSBUHCIPCI 1.2

com.apple.driver.usb.AppleUSBUHCI 1.2

com.apple.driver.usb.AppleUSBEHCI 1.2

com.apple.driver.AppleEFINVRAM 2.1

com.apple.driver.AppleEFIRuntime 2.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.DiskImages 480.60.3

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleUSBTDM 439.70.3

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.iokit.IOUSBMassStorageDriver 140.70.2

com.apple.iokit.IOSCSIBlockCommandsDevice 404.30.3

com.apple.iokit.IOSCSIArchitectureModelFamily 404.30.3

com.apple.iokit.IOStorageFamily 2.1

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.KernelRelayHost 1

com.apple.iokit.IOUSBHostFamily 1.2

com.apple.driver.usb.AppleUSBCommon 1.0

com.apple.driver.AppleBusPowerController 1.0

com.apple.driver.AppleSEPManager 1.0.1

com.apple.driver.IOSlaveProcessor 1

com.apple.iokit.IOReportFamily 31

com.apple.iokit.IOTimeSyncFamily 680.15

com.apple.iokit.IONetworkingFamily 3.4

com.apple.driver.AppleACPIPlatform 6.1

com.apple.driver.AppleSMC 3.1.9

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.pthread 1

com.apple.kec.Libm 1

com.apple.kec.corecrypto 1.0

EOF

Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2 GHz, 8 GB, SMC 1.69f1

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In

Graphics: AMD Radeon HD 6490M, AMD Radeon HD 6490M, PCIe

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0198, 0x393955353436392D3034362E4130304C4620

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x0198, 0x393930353436392D3130362E4130304C4620

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.102.30)

Bluetooth: Version 6.0.7f22, 3 services, 27 devices, 0 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: KINGSTON SA400S37240G, 240,06 GB

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: IR Receiver

USB Device: USB 2.0 Bus

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1

⟐ Answered 4월 28, 2026 at 0:36 GMT-7

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 4월 27, 2026 at 18:29 GMT-7

Thank you

⟐ Commented 4월 27, 2026 at 9:55 GMT-7

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 4월 27, 2026 at 7:38 GMT-7

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 4월 27, 2026 at 7:20 GMT-7

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 4월 27, 2026 at 6:32 GMT-7

⟐ Answered 4월 27, 2026 at 4:10 GMT-7

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 4월 27, 2026 at 0:38 GMT-7

⟐ Commented 4월 26, 2026 at 13:09 GMT-7

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 4월 26, 2026 at 6:05 GMT-7

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 4월 23, 2026 at 14:24 GMT-7

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 4월 22, 2026 at 19:22 GMT-7

⟐ Answer edited 4월 22, 2026 at 19:08 GMT-7

⟐ Commented 4월 22, 2026 at 16:00 GMT-7

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 4월 22, 2026 at 13:00 GMT-7

⟐ Answered 4월 21, 2026 at 8:31 GMT-7

⟐ Answered 4월 20, 2026 at 4:48 GMT-7