Hi,
my MacBook Pro late 2012, 13" bought sep. 2014 has some strange problems.
It all startet when i was trying to wake it up after sleep mode. The screen stayed black and i had to reboot holding the on/off button.
These problems occurred more often and one day it didn't even start anymore. So i did some research and bought and installed a new SSD HD (Samsung 500 GB, before i had the 128 Apple SSD).
Setting up the OS went fine and no problems occurred. But since 2 weeks the problems are back. But slightly different:
Now i can't boot from recovery anymore (Prohibitory symbol), boot process for OSX 10.9 needs about 20 sec (3 sec when it was all new) and the black screen after sleep mode.
Today i deleted the SSD, formatted it and tried to install 10.9 and sierra again. Both failed after the reboot when you should be able to set up your Mac. I tried and failed to boot also in target mode. Recovery won't boot, too. (Prohibitory symbol again)
But i can start the Mac from my Time Machine and external HD. So when i run Disc Utility, it says the HD is fine.
Any suggestions what i could try, before going to the local reseller?
Thanks for your help,
Chris
my MacBook Pro late 2012, 13" bought sep. 2014 has some strange problems.
It all startet when i was trying to wake it up after sleep mode. The screen stayed black and i had to reboot holding the on/off button.
These problems occurred more often and one day it didn't even start anymore. So i did some research and bought and installed a new SSD HD (Samsung 500 GB, before i had the 128 Apple SSD).
Setting up the OS went fine and no problems occurred. But since 2 weeks the problems are back. But slightly different:
Now i can't boot from recovery anymore (Prohibitory symbol), boot process for OSX 10.9 needs about 20 sec (3 sec when it was all new) and the black screen after sleep mode.
Today i deleted the SSD, formatted it and tried to install 10.9 and sierra again. Both failed after the reboot when you should be able to set up your Mac. I tried and failed to boot also in target mode. Recovery won't boot, too. (Prohibitory symbol again)
But i can start the Mac from my Time Machine and external HD. So when i run Disc Utility, it says the HD is fine.
Any suggestions what i could try, before going to the local reseller?
Thanks for your help,
Chris