(G570F dead) Need help in J5 prime phone no short

Stange problem with samsung G570F J5 prime dual sim indian
there no reading on battery terminal
the battery is alive and have current 4.2v

the power button shows 3.9v when checked with power button -ve
and 4.2v when checked with phone board
and when battery is instered the positve resistor next to battery terminal short

and all phone short

the phone is dead
what could be done
i am attching the pic