Hello guys,
Can anyone help me solve this problem?
- I'm three days puzzling over a macbook pro 13 'A1278 model. He was with the Yosemite installed, tried to update it with the Sierra. He started the installation, but after restarting the first time he would no longer start, it is the apple carries and catches. After that I did the following:
- I wiped nvram
- I cleaned smc
- I tried to start in safe mode and lock.
- I removed the hd put on another mac and saved my items, formatted it and put in the original mac started in recovery mode with the internet, it downloaded and installed the lion occurred over the same mistake after the first reboot it does not start.
- I tried to stick bootable the Yosemite same problem.
- I tried to stick bootable the sierra, same problem.
Can anyone help me solve this problem?