Completely resetting macbook pro

So a colleague of mine had a macbook pro that she doesn't use because it was 'broken' and said that i could try and fix it.


So the problem is the macbook pro won't boot past the 'chime'. it simply appears with a grey screen.


I have tried internet recovery (failed)

I have tried to reinstall os x (with a usb boot drive) (error, fail)

I have tried to erase the hard disk (disk wont unmount) (fail)


I can't think of anything else to do, anyone else got any ideas?


Thanks

Posted on Sep 22, 2016 4:09 PM

Reply
3 replies

Sep 23, 2016 6:41 AM in response to lllaass

Hi sorry i should have been more specific,


Model - VIN, MacBook Pro (13-inch Mid 2010)

Internet recovery mode / standard recovery mode

- disk utility

erase disk (error failed to unmount disk)

First aid (successful 'problems were found with the partition map which might prevent booting')

erase disk ( error failed to unmount disk)

First aid (updating boot support partitions for the volume as required. unable to unmount volume for repair)

- osx install (not enough space on disk)


note

- during recovery mode during disk utility it takes a decent amount of time (5mins ish) to load the disks.

- when erasing the drive i'm selecting the option, Format - OS X Extended (journaled) Scheme (GUID Partition Map)

- i also can't seem to start the macbook in safe mode.


Bootable USB

I thought using a bootable usb would help. I have no idea which OS the macbook has so i created an el capitan bootable usb.

- disk utility

erase disk (error failed to unmount)

First aid (successful 'problems were found with the partition map which might prevent booting')

erase disk ( error failed to unmount disk)

First aid (updating boot support partitions for the volume as required. unable to unmount volume for repair)

- install os x

returns an error upon installation ( an error occurred while preparing the installation, try running again)

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Completely resetting macbook pro

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