k300i dead, only red blinking but only without baterry
 

i have k300 dead after water damage, its claned, resolder, etc.
its impossible to flash with any program.
when i connect charger red light blinking fast, when i put battery led stop blinkig and stop lighting ( i check on another baterry to).

which parts should i check? where is the problem??

waiting for Yours suggestions...

clean conector to reflash the phone
blinking red diode is batery problem!

all conector are cleaned, diode blinking only WITHOUT battery. whn i put battery led dont light

so, nobody has solution for this problem?
is any way to check is it "power manager" on mb?