Its Alive! but in a weird way. I was searching for shorted PCB components. First stop diodes. All ok. I started doing voltage drop testing by momentarily connecting the battery & probing different sites on the pcb. A quick spike in voltage then dropping to around 0.106 volts at the shunt.
But here is the weird kicker.... I was probing at the shunt while cycling the battery & suddenly the the voltage shot up & stayed @ 4.2volts. ???
But I didn't do anything in reality? My only theory is maybe the battery protection IC is to sensitive & cannot handle capacitor inrush of a completely dead kindle?? I dont know.
With that I pressed the power button & it powered up for the first time.
It charged untill green & now acts like a normal alive kindle.
Weird.
All I can say from this experience is there may be a fundimental flaw in the battery protection ic vs kindle battery managment. Don't know. At least this thread may offer some diagnostic assistance to someone experiencing the same...
Would love to hear of anyone has experienced something similar.