Mac mini 2014 stuck in boot loop

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Mac mini 2014 stuck in boot loop

Hi,

I have a Mac mini 2014 late with the following configuration:

MacOS Mojave 10.14.1, 2,6 GHz Intel Core i5, 8 GB 1600 MHz DDR3, Intel Iris 1536 MB, Samsung SSD 860 EVO 250GB (originally there was a 1TB HDD, and I changed it in the Summer and clear installed High Sierra on it, then Mojave) I have a wired mouse, an Apple bluetooth keyboard, and a monitor connected with HDMI. No other devices connected to the Mac. It worked without any problems until now:

1. Currently when it goes to sleep, it restarts randomly after a while. (I copied the report to the end of the message)

2. Other problem is when it goes to sleep, I can't wake it up: no response for keyboard or mouse click, the indicator light on the front is on continuously (not flashes slowly during sleep as normally) I had to turn it off with the power button (press and hold for 5 second). When I turn it on, the startup sound delays 10 seconds (normally I should hear it immediately), then the Apple logo starts loading but it stops at the end, and then nothing happens.

I found a solution in a forum which helps me to boot MacOS:

- after startup sound I press and hold Command+S

- It launches a command shell

- I type the following command pressing enter after each other:

mount -uw /

sync

reboot

-It works, but I don't know, what is it, I'm not an expert. And it doesn't solve the original two problems.

What I tried:

I clear installed Mojave but it didn't help (no software problem)

I ran apple diagnostics (hold D key) - no problem

I ran First aid on the SSD with Disk Utility - no problem

Does anyone have an idea?

Here is the report:

*** MCA Error Report ***

CPU Machine Check Architecture Error Dump (CPU: Intel(R) Core(TM) i5-4278U CPU @ 2.60GHz, CPUID: 0x40651)

Core: 0

IA32_MC5_STATUS=0xEE0000000040110A

IA32_MC5_CTL=0x0

IA32_MC5_ADDR=0xFF707740

IA32_MC5_MISC=0x3880000086

Core: 0

IA32_MC6_STATUS=0xFE0000000040110A

IA32_MC6_CTL=0x0

IA32_MC6_ADDR=0x26F616100

IA32_MC6_MISC=0xB88001C086

*** Device Tree ***

{

"pcie_cfg_base" : "0xe0000000",

"pci_devices" :

{

"0x0" : "MCHC@0",

"0x10000" : "IGPU@2",

"0x18000" : "HDAU@3",

"0xb0000" : "pci8086,9c3a@16",

"0xa0000" : "XHC1@14",

"0xd8000" : "HDEF@1B",

"0xe2000" : "RP03@1C,2",

"0xe4000" : "RP05@1C,4",

"0xe0000" : "pci-bridge@1C",

"0x200000" : "RP03@1C,2/IOPP/ARPT@0",

"0xe3000" : "RP04@1C,3",

"0xf8000" : "LPCB@1F",

"0xfa000" : "SATA@1F,2",

"0xfb000" : "SBUS@1F,3",

"0x400000" : "RP05@1C,4/IOPP/UPSB@0",

"0x300000" : "RP04@1C,3/IOPP/GIGE@0",

"0x500000" : "RP05@1C,4/IOPP/UPSB@0/IOPP/DSB0@0",

"0x518000" : "RP05@1C,4/IOPP/UPSB@0/IOPP/DSB1@3",

"0x520000" : "RP05@1C,4/IOPP/UPSB@0/IOPP/DSB2@4",

"0x528000" : "RP05@1C,4/IOPP/UPSB@0/IOPP/DSB3@5",

"0x600000" : "RP05@1C,4/IOPP/UPSB@0/IOPP/DSB0@0/IOPP/NHI0@0",

"0x530000" : "RP05@1C,4/IOPP/UPSB@0/IOPP/DSB4@6",

"0x301000" : "RP04@1C,3/IOPP/SDXC@0,1"

},

"device_mmio" :

{

"PCI0@0" :

[

{ "a" : "0xcf8", "s" : "0x8" }

],

"PCI0@0/AppleACPIPCI/IGPU@2" :

[

{ "a" : "0x7f90000000", "s" : "0x400000" },

{ "a" : "0x7f80000000", "s" : "0x10000000" }

],

"PCI0@0/AppleACPIPCI/HDAU@3" :

[

{ "a" : "0x7f90514000", "s" : "0x4000" }

],

"PCI0@0/AppleACPIPCI/XHC1@14" :

[

{ "a" : "0x7f90500000", "s" : "0x10000" }

],

"PCI0@0/AppleACPIPCI/pci8086,9c3a@16" :

[

{ "a" : "0x7f90518100", "s" : "0x20" }

],

"PCI0@0/AppleACPIPCI/HDEF@1B" :

[

{ "a" : "0x7f90510000", "s" : "0x4000" }

],

"PCI0@0/AppleACPIPCI/RP03@1C,2/IOPP/ARPT@0" :

[

{ "a" : "0xa0600000", "s" : "0x8000" },

{ "a" : "0xa0400000", "s" : "0x200000" }

],

"PCI0@0/AppleACPIPCI/RP04@1C,3/IOPP/GIGE@0" :

[

{ "a" : "0x7f90400000", "s" : "0x10000" },

{ "a" : "0x7f90410000", "s" : "0x10000" }

],

"PCI0@0/AppleACPIPCI/RP04@1C,3/IOPP/SDXC@0,1" :

[

{ "a" : "0x7f90420000", "s" : "0x10000" }

],

"PCI0@0/AppleACPIPCI/RP05@1C,4/IOPP/UPSB@0/IOPP/DSB0@0/IOPP/NHI0@0" :

[

{ "a" : "0xa0900000", "s" : "0x40000" },

{ "a" : "0xa0940000", "s" : "0x1000" }

],

"PCI0@0/AppleACPIPCI/SATA@1F,2" :

[

{ "a" : "0xa082a000", "s" : "0x800" }

],

"PCI0@0/AppleACPIPCI/SBUS@1F,3" :

[

{ "a" : "0x7f90518000", "s" : "0x100" }

],

"DMAC" :

[

{ "a" : "0x0", "s" : "0x20" },

{ "a" : "0x81", "s" : "0x11" },

{ "a" : "0x93", "s" : "0xd" },

{ "a" : "0xc0", "s" : "0x20" }

],

"FWHD" :

[

{ "a" : "0xff000000", "s" : "0x1000000" }

],

"HPET" :

[

{ "a" : "0xfed00000", "s" : "0x4000" }

],

"IPIC" :

[

{ "a" : "0x20", "s" : "0x2" },

{ "a" : "0x24", "s" : "0x2" },

{ "a" : "0x28", "s" : "0x2" },

{ "a" : "0x2c", "s" : "0x2" },

{ "a" : "0x30", "s" : "0x2" },

{ "a" : "0x34", "s" : "0x2" },

{ "a" : "0x38", "s" : "0x2" },

{ "a" : "0x3c", "s" : "0x2" },

{ "a" : "0xa0", "s" : "0x2" },

{ "a" : "0xa4", "s" : "0x2" },

{ "a" : "0xa8", "s" : "0x2" },

{ "a" : "0xac", "s" : "0x2" },

{ "a" : "0xb0", "s" : "0x2" },

{ "a" : "0xb4", "s" : "0x2" },

{ "a" : "0xb8", "s" : "0x2" },

{ "a" : "0xbc", "s" : "0x2" },

{ "a" : "0x4d0", "s" : "0x2" }

],

"MATH" :

[

{ "a" : "0xf0", "s" : "0x1" }

],

"LDRC" :

[

{ "a" : "0x2e", "s" : "0x2" },

{ "a" : "0x4e", "s" : "0x2" },

{ "a" : "0x61", "s" : "0x1" },

{ "a" : "0x63", "s" : "0x1" },

{ "a" : "0x65", "s" : "0x1" },

{ "a" : "0x67", "s" : "0x1" },

{ "a" : "0x80", "s" : "0x1" },

{ "a" : "0x92", "s" : "0x1" },

{ "a" : "0xb2", "s" : "0x2" },

{ "a" : "0xffff", "s" : "0x1" },

{ "a" : "0x1800", "s" : "0x80" },

{ "a" : "0x800", "s" : "0x80" }

],

"RTC" :

[

{ "a" : "0x70", "s" : "0x8" }

],

"TIMR" :

[

{ "a" : "0x40", "s" : "0x4" },

{ "a" : "0x50", "s" : "0x4" }

],

"SMC" :

[

{ "a" : "0x300", "s" : "0x20" },

{ "a" : "0xfef00000", "s" : "0x10000" }

],

"EC" :

[

{ "a" : "0x62", "s" : "0x1" },

{ "a" : "0x66", "s" : "0x1" }

],

"PDRC" :

[

{ "a" : "0xfed1c000", "s" : "0x4000" },

{ "a" : "0xfed10000", "s" : "0x8000" },

{ "a" : "0xfed18000", "s" : "0x1000" },

{ "a" : "0xfed19000", "s" : "0x1000" },

{ "a" : "0xe0000000", "s" : "0x10000000" },

{ "a" : "0xfed20000", "s" : "0x20000" },

{ "a" : "0xfed90000", "s" : "0x4000" },

{ "a" : "0xfed45000", "s" : "0x4b000" },

{ "a" : "0xff000000", "s" : "0x1000000" },

{ "a" : "0xfee00000", "s" : "0x100000" }

],

"MEM2" :

[

{ "a" : "0x20000000", "s" : "0x200000" },

{ "a" : "0x40000000", "s" : "0x200000" }

]

}

EOF

Model: Macmini7,1, BootROM 236.0.0.0.0, 2 processors, Intel Core i5, 2,6 GHz, 8 GB, SMC 2.24f32

Graphics: Intel Iris, Intel Iris, Built-In

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD,

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD,

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x13B), Broadcom BCM43xx 1.0 (7.77.61.1 AirPortDriverBrcmNIC-1305.2)

Bluetooth: Version 6.0.9f2, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: Samsung SSD 860 EVO 250GB, 250,06 GB

USB Device: USB 3.0 Bus

USB Device: IR Receiver

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Wired Mouse

Thunderbolt Bus: Mac mini, Apple Inc., 26.1

Thank you for the help!

Mac mini, macOS Mojave (10.14.1)

Posted on Nov 29, 2018 1:01 PM

Reply

Answer 1

Kappy

Level 10

362,007 points

Nov 29, 2018 1:18 PM in response to hunyaditomie

sync -- force completion of pending disk writes (flush cache) from the man page. This isn't a solution to your problems. It just gets the computer to boot.

These links may be helpful:

If your Mac doesn't sleep or wake when expected

Sleep, Wake, and Startup- Hardware and ACPI

A Troubleshooting Procedure that may Fix Problems with macOS El Capitan or Later

You should try each, one at a time, then test to see if the problem is fixed before going on to the next.

Be sure to back up your files before proceeding if possible.

Shutdown the computer, wait 30 seconds, restart the computer.
Disconnect all third-party peripherals.
Resetting your Mac’s PRAM and NVRAM
Reset the System Management Controller (SMC)
Reset your Startup Disk and Sound preferences.
Start the computer in Safe Mode. Test in safe mode to see if the problem persists, then restart normally. Also, see Use safe mode to isolate issues with your Mac - Apple Support and Playing Safe- what does Safe mode do?.
Use the Apple Hardware Test to see if there is any hardware malfunction. How to invoke and interpret the Apple hardware tests - CNET.
Repair the disk by booting from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented (usually, Macintosh HD) volume entry from the side list. Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and return to the Utility Menu. Restart the computer from the Apple Menu.
Repair permissions on the Home folder: Resolve issues caused by changing the permissions of items in your home folder.
Create a New User Account Open Users & Groups preferences. Click on the lock icon and enter your Admin password when prompted. On the left under Current User click on the Add [+] button under Login Options. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
Download and install the OS X El Capitan 10.11.6 Combo Update or 10.12.6 Combo Update or Download macOS High Sierra 10.13.6 Combo Update or Download macOS Mojave 10.14.1 Update as needed.
Reinstall OS X by booting from the Recovery HD using the Command and R keys. When the Utility Menu appears select Reinstall OS X then click on the Continue button.
Erase and Install OS X Restart the computer. Immediately after the chime hold down the Command and R keys until the Apple logo appears. When the Utility Menu appears:

Select Disk Utility from the Utility Menu and click on Continue button.

When Disk Utility loads select the drive (out-dented entry) from the Device list.

Click on the Erase icon in Disk Utility's toolbar. A panel will drop down.

Set the Format type to APFS (for SSDs only) or Mac OS Extended (Journaled.)

Click on the Apply button, then wait for the Done button to activate and click on it.

Quit Disk Utility and return to the Utility Menu.

Select Reinstall OS X and click on the Continue button.

14. If none of the above helps then see How to Downgrade macOS High Sierra and macOS Reversion- How to Downgrade from High Sierra.

15. If you get here without success then make an appointment at the Apple Genius Bar for service. If you need to find an Apple Store - Find a Store - Apple.

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Mac mini 2014 stuck in boot loop

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