回答“Little yellow button on logic board - what is it?”I did the same thing: I initiated a restart, then held down the “shift, control, option” keys and hit the power button without plugging it into . My MacBook never started back up, same as the above post. I followed the plan that the original post: opened the computer and pressed the small button adjacent to the internal lcd power light with the computer plugged in to the wall outlet. The charging alert rang and I knew my computer was back to life. Do follow the disassembly instructions on ifixit when you are removing the screws and removing the bottom casing. The flex cables are very delicate.
回答“iPad Pro 12.9 touchscreen is unresponsive from time to time”I removed all of the widgets on the notification page , turning everything off (background refresh, Siri, dictation, thumbprint lock, location, gestures, Bluetooth, etc. removed my cover with “Smart Cover feature” and it seems to be helping . i suspect that it’s due to the accelerometer which causes the delay Different things seem to be working for different people. What hasn’t worked for me: Full erase, iTunes restore Widget Removal (1) Slide from top down (2) swipe left to right one time (3) tap “edit” (4) tap “-“ then “remove” for each of the widgets (e.g. news, weather, calendar) (5) tap “done” at the top/ middle/ off to the right hand corner after removing. (6) I do believe that this is a software issue because I wasn’t experiencing this with 10.2. Hope this helps. The problem still occurred after the above steps were taken Update (01/03/2019): On iPad 12.9 2nd gen, been having touchscreen lag since iOS 11. I updated to 12 and the lag seemed to stop for a while but eventually resurfaced. I did the...