Hi, today I am working on a Apple MacBook Pro A1707 Touch Bar intermittent problems. The problem was no display. When open the motherboard I noticed that one of the VCORE inductors falling off, very weak solder. The logic board is neat & clean & no liquid spill. I soldered the inductor back again & got the display perfectly. Now what happens, it sometimes just shuts down by itself & cannot turn on immediately. The fans start to run to very fast (blank display) & have to turn off by pressing On/Off button for several seconds. I again turn on & I see Apple logo but no boot bar. This happens 2 ~ 3 times & after waiting for a minute or so I turn on again & works like any normal laptop without any errors till I shuts down again. I worked on it 4 ~ 5 hr without any problems & I had to shut down, & then again when turning it on, it would not turn on. This sequence follows over & over again. From where to start trouble shooting. So intermittent cannot figure out where to begin with. Any help will be greatly appreciated. Thanks