Is it possible to downgrade to Mountain Lion on probook 4540s ?

[shak3800]

Best to do the research on each of the patch to find the equivalent for 10.8 instead of blindly trying patches that may be only for 10.10.

Note that 10.9 is very similar to 10.8.

If they are very similar then its possible that most of the patches will work since the pbi clover installer is for both 10.10 and 10.9 . My biggest concern is if the pbi clover edition will finish the installation successfully. I can later on change the patches one by one if they need change.

 

[RehabMan]

If they are very similar then its possible that most of the patches will work since the pbi clover installer is for both 10.10 and 10.9 . My biggest concern is if the pbi clover edition will finish the installation successfully. I can later on change the patches one by one if they need change.

You'll find out more when you try.