So that meant it had to be a logic board fault. That left only one suspect.Īs he said, the modular design of these machines means there are essentially only three parts now: the top-case, which had been replaced the screen, which couldn’t be involved and the logic board. He plugged the Mac into a network drive and booted from a known good system, finding the same problem occurred, ruling out software. However, he hadn’t tested waking or starting on battery as that isn’t in the checklist. So, the second technician, who carried out the repair, ran the standard tests afterward – which include disconnecting from power and ensuring all is well. It would still shutdown randomly, but not immediately. Although the machine would instantly shutdown if you woke it or restarted it on battery power, that wouldn’t happen if you did either of those things on power and then disconnected the power. Intermittent shutdown.Īnd there was a bizarre behavior too. Under Issue, he wrote this, and only this: He also rather understated the extent of the battery problem. The top-case replacement includes a new battery, so that should have solved it.Īll of which meant that the technician who booked it in for repair didn’t log detailed notes. Not unreasonably, when you have a visibly swollen battery and a machine that shuts down when you attempt to wake it or restart it on battery power, the obvious suspect is a failed battery. Why the problem was not properly diagnosed The technician responsible came out, and we were able to solve the mystery. However, what hadn’t been done was to startup or wake the machine on battery, as that’s what resulted in an instant shutdown when the machine was brought in and still resulted in an instant shutdown when I tested it on collection. This is what is supposed to be a real-life test: starting up and then running some software to ensure that trackpad, keyboard, microphone, speakers, and so on, were all working. It also showed that a ‘functional test’ had been performed. The records showed that it had been put through all the automated tests, and had passed all of them. My immediate reaction was frustration at the fact that it appeared nobody had carried out a real-life test of the machine.
The bad news, however, was that the machine still immediately shutdown when run on battery power… It had a shiny new keyboard, and non-swollen battery. There was some good news when I went to collect my MacBook Pro today: the top-case replacement had been done. To add to the faulty keyboard and swollen battery, it turns out my MacBook Pro has a third failure: a logic board fault.
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