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MACBOOK WHITE 2009: MACBOOK WONT TURN ON (SOLVED)

 Hi all, my old Macbook white 2009 has been with us for the past 11 years since mid of 2009

MacBook white 2009 (from iFixit)

 Much repair work has been done previously, such as replacing the broken screen, replacing broken HDD, upgrading the RAM, fixing the power supply charger and the latest one permanently solders the power supply charger to the laptop.



Problem?:
Then, one more problem appears lately, which is the MacBook not able to turn on. even though, idle light and logo are on. In simple words, MacBook not able to enter the mac os.


The solution is:

press and hold: SHIFT + CONTROL + OPTION, then press the POWER button to switch OFF the MacBook...

Once MacBook is off,

 Then, press the POWER button to turn on the MacBook.

In my case, it works and the problem solved.

Thank you for coming here

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