Mid 2015 Macbook Pro 13" wont boot.

[electricmarquis]

I have a mid 2015 macbook pro that all the sudden after a reboot it sticks on the apple logo with progress bar reaching full and hangs. I have done SMC reset, PRAM reset several different ways. I have tried internet recovery several times and it hangs on the same apple logo screen with the progress bar sitting at full.

Any suggestions?

 

[harryb2448]

Get into Recovery and run Disk First Aid or Repair Disk depending on what operating system you are using which you have not shared.

 

[IWT]

Hi electricmarquis,

Clearly one of the possibilities is that your Mac's Internal Hard Drive is failing.

Following previous good advice: reboot the Mac whilst holding down the Command + R keys.

This should take into Recovery Mode.

From there, Click on Disk Utility, then click to highlight your Macintosh HD and, looking to your right, Click on First Aid and let it do its job.

It will either pronounce your Mac's HD as okay, or report a fault and repair it at the end of which it will advise you that problems are corrected, or tell you that the HD cannot be repaired and advise you to back up pronto.

Please post back and tell us the outcome.

Ian

 

[ferrarr]

Or, if you have either a Time Machine or a clone backup, you could try to boot from either of those?

 

[electricmarquis]

Update:

I was able to get into recovery mode. I have a time machine backup from about 7 days ago. The mac cannot find the SSD. I see it in disk utility but it will not mount. The restore from time machine lets me select the backup from my external HDD but it just says searching for target forever.

 

[IWT]

The mac cannot find the SSD. I see it in disk utility but it will not mount.

Okay. When you were in Recovery Mode and you said "the Mac" couldn't find the SSD - BUT you say you can see it in DU; do you mean the Mac's SSD or your Time Machine SSD?

If, as I suspect, you mean that DU can see the Mac's SSD, then that is mounted. An unmounted Drive cannot be seen.

Click on the Mac's SSD and then, over to your right, click on "First Aid" and execute/run it and see what happens; as in my post #3.

Ian

 

[electricmarquis]

I can see both the external HDD and the internal Apple SSD in DU. It will not mount the internal SSD. I can run a check on it and it comes back as a normal partitioning table but will not mount. I have powered down, removed the back cover and removed then reseated the SSD stick. Same same.

 

[electricmarquis]

I went ahead and ordered another 240gb ssd to replace the internal one. I also bought an enclosure so in the worst case I have a external drive.

 

[MacInWin]

What software provides a result of "normal partitioning table?" I just ran First Aid from DU on my SSD, the Container and the Volume within and didn't get that as a result.

EDIT: And you haven't said what version of macOS you are running.

 

[electricmarquis]

Mac OS Mojave. That was DU from the recovery boot that reported that info.

 

[electricmarquis]

This is interesting.

Got the new SSD. I installed it into the macbook pro. Recovery boot, then DU. Shows nothing. I put the OEM ssd in the enclosure. Target booted up fine on the oem external. Opened DU and the new SSD mounted internally is there. Put the OEM back inside. Nothing. Went back to the new internally and OEM in the encosure and target booted up fine. Went back to DU and tried to image the OEM from the external enclosure onto the new internal SSD and it keeps failing. I might not know how to do the image corectly though.

 

[MacInWin]

What does "Shows nothing" mean? Was the device not visible at any level in DU at all, but was not only visible but formatted in the enclosure? If so, that result seems to target the cable in the MBP. But then you said you booted from the external drive and, "Opened DU and the new SSD mounted internally is there." That result says the cable was good, at least at the point. But then you said. "Put the OEM back inside." I thought it WAS inside, or are you talking about some other "new SSD mounted internally?" Then you said, "Went back to the new internally and OEM in the encosure and target booted up fine. Went back to DU and tried to image the OEM from the external enclosure onto the new internal SSD and it keeps failing." Sorry, but at this time, I'm totally lost. Did you put both the original and new SSDs in the same enclosure? Maybe if you list out what you did, in detail, in order, so that we can see what worked and what didn't, we can suggest what to try.

Oh, and why, if you could see the new SSD when booted from the original in the external enclosure, didn't you go ahead and install the OS and migrate back to the new drive then? Was there something that triggered you to put the original back in?

At this time, the most likely issue is an intermittent cable to the drive in the MBP. It's worked with both drives and failed with both drives, which makes it very suspect.

 

[electricmarquis]

OK.

I am back up and running. I have the new SSD installed internally. I then booted from the OEM SSD in the enclosure, downloaded a Mojave installer and made a USB bootable. It would not recognize the new SSD from the USB bootable. I went back to booting off the OEM in the enclosure and used DU to format the new SSD. Then used the USB Mojave bootable and did a fresh install. After it was all updated and stable, I hooked up my Time Machine HD and recovered the files I wanted. I am posting this from the said laptop. All is working fine. I still have no idea why the OEM SSD won't do anything when installed internally but works in the enclosure?

Who knows. I am not that good at this. I do electrical work by day. I probably did everything backwards or more difficult than it should have been but I have a working MacBook Pro again.

Thank you for all the input which drove my thought.

 

[MacInWin]

Glad you got it sorted out. It is strange that the original SSD wasn't recognized when installed internally, where it was for so long, but hey, you got it going and that's what counts!

 

[electricmarquis]

Going through syslogs right before the MacBook failed to boot a pram reset was done directly prior.

 

[electricmarquis]

I feel like the new SSD pulls more power. Battery seems to go faster. Its an Aura Pro.

 

[MacInWin]

Do you have any statistics or measurements to support the feelings? I'd be very surprised if the power draw on an SSD was very high at all. But if you got it from OWC, there is a five year warranty, so call them to see what, if anything, can be done to test it for you.