check the mouse trackpad cable and the cable going into the logic board. in my experience, the trackpad cable needs to be installed exactly, we used to raise the MacBook up and slide the cable end into the trackpad upside down. there were many times we had to unscrew everything just to reinsert that cable. good luck and use fixit for everything as well I always refer to that just to refreshWhen checking over a MacBook's battery life in System Information / System Profiler I would often switch out batteries and check again, deciding if a battery replacement was worthwhile. Once the battery is switched out you will see the cycle count (along with capacity, etc) change.
here is a YouTube video: Macbook Pro 15" Retina A1398 Change Keyboard. After you've replaced (internal) keyboard/trackpad, unplug external USB-mouse & KB, and check+test if internal KB & TP are working or not, if working then NO-need to plug back in USB-mouse & KB, and go back to previously mentioned options in "Accessibility", and change/suiteIf you want to use the higher-performance discrete graphics processor at all times, choose Apple menu > System Preferences, click Battery, click the Battery tab, then deselect the automatic graphics switching checkbox. In macOS Catalina 10.15 and earlier, this setting is in Energy Saver preferences. If you connect an external display to your The right to repair bill that was passed in NYC in 2022 was also modified and it's practically useless for the consumer because it allows Apple/Samsung and other providers will do their best to screw you over. A simple battery which costs 30-100$ will cost 400$-100$.
2 Answers. Sorted by: 1. The positive (+) and negative (-) terminals on the battery are usually the outermost pins. Knowing the specific MacBook model is helpful here. The MagSafe 1/2 charger outputs 16.5 volts, so you are going to need a charger that supplies that amount.
1. Gather Necessary Tools: For a successful replacement, assemble the required tools like Pentalobe and Torx screwdrivers, plastic opening tools, and a replacement battery. 2. Order a Quality Replacement Battery: Purchase a high-quality replacement battery that is compatible with the 2015 MacBook Pro. VkRf7.