820-00840 not working from the battery [SOLVED]

[2informaticos]

You can compare with different board model, which also has ISL9239; is the same schematic.
U7000 is supposed to enable 3V3_G3H directly.
Check all resistors around it.
Direct comparison of diode mode and voltages with good board should help.
Did you try to reflow it?

 

[Kappy]

Reflow ISL? I've replaced it 3 times now...

I'll do that tomorrow, it's getting late..

 

[Kappy]

So I've now checked all voltages and diode modes around the U7000 and I've found the problem. C7078 was only showing 0.2v with the battery alone. After checking D6905 and that having 11.2v I ran a wire between them both and HEY PRESTO battery now works!!!

Thank you for your help and support