10-11-2019 07:51 PM - edited 10-11-2019 08:00 PM
After installing SSD and upgrade RAM from 4 to 12GB.
Notebook will not start, screen is black and caps lock blink slow* 3 blink for 4 times and then restart.
*It just have one color LED
10-12-2019 04:59 PM
According to this HP chart, that blink sequence implies that the power block is not providing enough current to start the PC: https://support.hp.com/us-en/document/c01732674?jumpid=reg_r1002_usen_c-001_title_r0001
If you have another charger, suggest you try that.
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