Will not power on, but I’ve checked…

The power will not turn on.

The battery was checked, it charges and holds a charge at 4.17 VDC. Battery voltage was rechecked at the wires soldered to the motherboard and still present.

The power button was checked at the connection to the motherboard with the connection removed (end of ribbon/wires to the buttons). From left to right, ribbon/wires facing up, wire 3 to 5 read OL when power button was not pressed, then 7.89 Mohms when power button was pressed. Wire 1 to 5 read OL when power button was not pressed, then 0.6 ohms when power button was pressed. Not sure if both are normal operations.

Below is a table of readings at the button wiring ribbon.

Wire -Wire // Not Pressed / Pressed / Button

1 -2 // 0.4 ohms / 0.4 ohms / NO BUTTONS INVOLVED

1 -5 // OL / 0.6 ohms / POWER

1 -6 // OL / 0.4 ohms / VOLUME +

1 -7 // OL / 0.4 ohms / VOLUME -

3 -5 // OL / 7.89Mohms / POWER

3 -6 // OL / 7.89Mohms / VOLUME +

3 -7 // OL / 7.89Mohms / VOLUME -

8 -10 // OL / 9.9Kohms / BLUETOOTH

9 -10 // OL / 9.9kohms / PLAY & PAUSE

Perhaps there is a PCB issue at the buttons, or more likely the main motherboard?