Moderators Jake Lo Posted December 28, 2017 Moderators Share Posted December 28, 2017 Take out your battery and CMOS battery. Press and hold power button for 30 secs. Replace both battery, go into the BIOS and set the settings to UEFI/AHCI/Legacy Option ROMs enabled. Try booting again I assume you have latest Clover install (v4359 at this time) Link to comment Share on other sites More sharing options...
acquarius.13 Posted December 28, 2017 Author Share Posted December 28, 2017 Hi Jake. Should I replace also Dell main battery? Why? Mine is quite good. After loading default bios values I still experience the problem. I will try to do also your procedure. In the meanwhile I will also try to change SMBIOS of USB installer (from MacbookAir7,1 of your bootpack to MacbookPro12,1 of my machine). I always try to be updated with clover. So I’m running the latest v4359. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted December 28, 2017 Administrators Share Posted December 28, 2017 "Replace" as in re-fit/re-plug. Link to comment Share on other sites More sharing options...
acquarius.13 Posted December 29, 2017 Author Share Posted December 29, 2017 Ok I tried all the things. Replacing batteries was not successful. Changing SMBIOS worked once but only that time. Worked I mean I arrived at the installer (there is a small issue in backlight but it is sufficient to change it with fn+f12) but it worked only once Link to comment Share on other sites More sharing options...
acquarius.13 Posted December 29, 2017 Author Share Posted December 29, 2017 Guys, I will try to use another USB stick. Since I was able to update bios, this topic now is not so useful. You can close this if you want and I can open another one if I will encounter the same problems. Link to comment Share on other sites More sharing options...
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