Restoring a macbook pro problem
when i start the restore process i get this error message. What is causing it ?
MacBook Pro 13″, OS X 10.10
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when i start the restore process i get this error message. What is causing it ?
MacBook Pro 13″, OS X 10.10
The certificates for several of Apples OS's expired in October 2019, Apple have been very poor at getting these updated on
thier Recovery Servers with valid certificates.
This may be the problem you are experiencing.
Try this workaround, we are going to set the time and date on your mac to a date previous to the expiry date of the certificates.
Connect your mac to your router via cable, not WiFi
Boot to your Recovery HD, click on Utilities in the menubar select Terminal.
Make sure WiFi is switched off, it can reset the date back to today.
Enter a new date, for example or just copy and paste
sudo date -u 011421002017
press Return
enter your password
press Return
If Terminal returns an error saying sudo : command not found, then try again without sudo.
just enter
date -u 011421002017
press Return
You won't be prompted for a Password if you did not need to use sudo
Once the date has changed you can quit Terminal.
Now try downloading the OS.
Click on Install OS X, press Continue.
If this works then when the OS is installed and booted up you can Open System Preferences> Date & Time
and reset the time back to today.
The certificates for several of Apples OS's expired in October 2019, Apple have been very poor at getting these updated on
thier Recovery Servers with valid certificates.
This may be the problem you are experiencing.
Try this workaround, we are going to set the time and date on your mac to a date previous to the expiry date of the certificates.
Connect your mac to your router via cable, not WiFi
Boot to your Recovery HD, click on Utilities in the menubar select Terminal.
Make sure WiFi is switched off, it can reset the date back to today.
Enter a new date, for example or just copy and paste
sudo date -u 011421002017
press Return
enter your password
press Return
If Terminal returns an error saying sudo : command not found, then try again without sudo.
just enter
date -u 011421002017
press Return
You won't be prompted for a Password if you did not need to use sudo
Once the date has changed you can quit Terminal.
Now try downloading the OS.
Click on Install OS X, press Continue.
If this works then when the OS is installed and booted up you can Open System Preferences> Date & Time
and reset the time back to today.
Now i got this message
Did that. It seems to work get but then i get this message
Did the date reset code and worked for me. But how do i connect using cable? Never done it before.
Use an ethernet cable between your mac and your router.
Tried again and i got the same error message “ a required download is missing”
Are you making sure that your WiFi connection is not switching back on and resetting the time to today.
Yes the wifi is off
Restoring a macbook pro problem