![]() I think this is pretty bad offer to fix this problem without finding where the real problem is. As a “solution” they told me just to buy a new logic board and replace it. I sent it to authorised Apple reseller where they had same results as myself. Therefore I can’t find a solution what to do next. I tried Micromat TechTool Pro analysis software to find a problem in a computer, but all tests passed green light. ![]() This loading situation loops and one way to stop it is to reformat ssd and try to reinstall either Yosemite or El Capitan. ![]() Press any key to restart a computer and start again. literally all youtube tutorials were tried and when the initiated installation starts - screen with apple logo and progress bar loads roughly around 30% and computer shows magical screen saying that something went wrong with computer. I tried all available ways to install from internet repair, changing dates on the computer etc. Unfortunately, I cannot in any possible way to update operating system higher than El Capitan. The problem is that this macbook pro is compatible with brand new operating systems provided by a manufacturer. You cant upgrade Mac OS from El Capitan to Sierra using TeamViewer as a remote connection. It works amazing on Yosemite and El Capitan. Answer (1 of 3): Q: Can I upgrade directly from El Capitan to High Sierra A: If you are running into difficulty upgrading to High Sierra because its not available to you then: Try the macOS Catalina Updater from DosDude1 Despite incorrect popular opinion, the updater actually works on ol. I got used mac book pro 2015 early retina laptop.
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