Blackberry battery cross icon solution

Blackberry battery cross icon solutionBe The First To Comment first you chk the batery pin&battery1 pont is +2nd point is -and other 2 point is bsiyou just chk boths pointwith multimeter if bsi damaged its showing battery cross iconone needls you pu t at ground other needls you put at bsi pointyou chk the reading of bothesis any one poin from boths sort with ground or dead its mean this poit is