![]() I'm not saying it's futile, thing could just have a single component or bad via in there causing all the headache, but until you look at and check every single one of them to find that one, and in the case of the PMIC or MCU that's not easily done, then it's hard to say what the issue could be or best way to tell what might be bad. The only ones that have access to that are Sony and anyone crazy enough to ruin a controller or two to make their own. Enjoy special discounts US 7.19 US 7.99 -10. But the short and simple of it is, it's not charging, so the PMIC is a good place to start, then it's not detected over USB, so the MCU is what that's connected to there, and being a BGA chip you can't easily probe any of the connections at it and need a schematic to know where everything is going. For PS4 Pro JDS 055 JDM-050 JDM-055 Controller Full Set Housing shell Repair buttons Case Mod Kit DIY Berry Blue Cover Replace. You'd almost need more than just a DMM to dig into one of those things as well, a scope and more than likely a Logic Analyzer would be the tools necessary to tackle a proper troubleshooting of one of those. To make things even more fun, there could be multiple issues that all cause the same problem. ![]() No one has diagnosed every issue every controller has, least not to my knowledge, and you could even have one that has an all new issue, so unless you have a working JDM-055 to start comparing this and that to there's really no easy checks to tell you what exactly is wrong. If the board looks pristine, then there's really no telling what could be wrong, as 99% of the time you just need to go where the last person was fiddling around with it and usually you'll find the problem. ![]() ![]() The PMIC that does all of the power management, then the MCU that controls everything including the PMIC, so if it's not working right, odds are one of them is causing the problem. ![]()
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