MBPro13" shuts down during boot, recovery boot and internet recovery

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2011年末 MacBook Pro 13" 一体化机

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Kevin Borghi @mrkappa

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发帖于: 2020年2月2日

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MBPro13" shuts down during boot, recovery boot and internet recovery

Hi all, first question here :)

I’m facing very odd behaviors on my mbpro, can you help me fixing it?

Laptop: MacBook Pro 8,1 (Late 2011)

List of related (I think) issues:

shuts down during boot: Apple Logo, progress bar ~10%
shuts down during recovery boot (Cmd + R): Apple Logo, progress bar ~10%
shuts down after internet recovery (Cmd + Option + R): sometimes I can see the GUI sometimes not
charger light behaves oddly: sometimes doesn't turn on and sometimes is working well (can't get the logic)
after a random shutdown I can restart the Mac only resetting SMC, if I don't reset the SMC the power button is dead

What I did so far:

changed battery with a new one (side leds are Ok)
run without battery, same issues
run without HDD, internet recovery issue
SMC + PRAM reset
removed HDD and used a new one with internet recovery, same issues
run Apple Hardware Test (D) both short and extended mode, no errors in both cases
changed thermal paste

Booting with Cmd + V:

Question: What I can do right now?

My two cents: dying SMC controller?

Thank you all for your time :)

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What is your SSD drive? Make & Model

由 Dan 完成的 2020年2月2日

I've a standard Apple HDD from Seagate, no SSD.

由 Kevin Borghi 完成的 2020年2月2日

I'm thinking you have a bad SATA cable here, which can explain the OS's inability to load properly. Most of the time I see this when people have upgraded to newer SATA III (6.0 Gb/s) drives and mostly SSD's Vs HDD's.

The fact diagnostics runs without failure also points to this as well.

FYI: SMC wouldn't be the issue as that only controls the thermals and a charging. If you has a 15" model then I would have suspected the dedicated GPU as messing up. The 13" model doesn't have a dedicated GPU it uses the graphics engine within the CPU.

由 Dan 完成的 2020年2月3日

Can I try booting my HDD from an external USB drive? I'll remove my HDD from the internal bay. Have I to disconnect the sata cable too?

由 Kevin Borghi 完成的 2020年2月3日

If your internal drive has a bad OS, moving it to an external case won't be as useful that having a known good drive you setup from another Mac.

The internal SATA cable can be left in place (just disconnecting the drive)

由 Dan 完成的 2020年2月3日

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Dan @danj

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发帖于: 2020年2月3日

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Review what I wrote up here: Are Unibody 13" HDD Cables are compatible between years 09-12?

It will explain the issues and the needed part and why.

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Thank you for your clarification, can I exclude a faulty SATA cable by booting from an external USB drive?

由 Kevin Borghi 完成的 2020年2月3日

As long as the the external is a clean install.

由 Dan 完成的 2020年2月3日

Brand new external USB HDD, booted from original installation disc and same issue: random shut down. Any idea? (no HDD in the internal bay)

由 Kevin Borghi 完成的 2020年2月3日

Sadly, this is boiling down to a bad logic board ;-{

It might be as simple as a bad solder joint or a worn component. You'll need to find someone locally that has deeper skills and the needed tools to fix your logic board or you could just replace it.

This is still a very desirable system! It's worth fixing.

由 Dan 完成的 2020年2月3日

Thank you for your help, @danj

(first question here, can I accept your answer for your kind help?)

由 Kevin Borghi 完成的 2020年2月4日

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I'm thinking you have a bad SATA cable here, which can explain the OS's inability to load properly. Most of the time I see this when people have upgraded to newer SATA III (6.0 Gb/s) drives and mostly SSD's Vs HDD's.

The fact diagnostics runs without failure also points to this as well.

FYI: SMC wouldn't be the issue as that only controls the thermals and a charging. If you has a 15" model then I would have suspected the dedicated GPU as messing up. The 13" model doesn't have a dedicated GPU it uses the graphics engine within the CPU. — Dan
Can I try booting my HDD from an external USB drive? I'll remove my HDD from the internal bay. Have I to disconnect the sata cable too? — Kevin Borghi
If your internal drive has a bad OS, moving it to an external case won't be as useful that having a known good drive you setup from another Mac.

The internal SATA cable can be left in place (just disconnecting the drive) — Dan
Thank you for your clarification, can I exclude a faulty SATA cable by booting from an external USB drive? — Kevin Borghi
Brand new external USB HDD, booted from original installation disc and same issue: random shut down. Any idea? (no HDD in the internal bay) — Kevin Borghi
Sadly, this is boiling down to a bad logic board ;-{

It might be as simple as a bad solder joint or a worn component. You'll need to find someone locally that has deeper skills and the needed tools to fix your logic board or you could just replace it.

This is still a very desirable system! It's worth fixing. — Dan
Thank you for your help, @danj

(first question here, can I accept your answer for your kind help?) — Kevin Borghi

2011年末 MacBook Pro 13" 一体化机

MBPro13" shuts down during boot, recovery boot and internet recovery

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