macbook pro A1728 cant charge battery

[alihomee]

while pluged in it shows only green light and the laptop cant start but it on for a while then turns off and repate this.but if i pluged in a charge battery it starts fine and runs ok but still cant charge battery.i have change with new battery and charger alsoo but still same.i have also change charging ic near battery connector but still same.any ideas

[dellxps15]

Re: macbook pro A1728 cant charge battery

logic board code ?

[Rashid36]

Re: macbook pro A1728 cant charge battery

Dear with me MacBook Pro A1502 EMC:2835 820-4924-A, problem give me x mark on battery, i replaced isl6259AHRTZ, R7120 0.02ohm, on one point gives me 15.94 and othere on 15.98 volt on battery jack 123pin 11.5 from battery and 4,5, 3.4v and pin 6 0.026 up and down... pls. help me out ........

[alihomee]

Re: macbook pro A1728 cant charge battery

chnage battery charging ic

[Rashid36]

Re: macbook pro A1728 cant charge battery

Changed!!!!!!!!!!!!!!!!!!!!!!!!!!!! but same problem

[alihomee]

Re: macbook pro A1728 cant charge battery

did anybody face this problem before......i also changed charging ic isl6259 three times but still same......with charger it wont turns on but keep on restarting but with a charged battery it turns on runs fine but shows not charging and charger light remains green....i changed magasafe also used ogignal also changed battery also but still same thing

[alihomee]

Re: macbook pro A1728 cant charge battery

sori for wrong model in post its a A1278 and mobo coad is 820-2936-A

[atsio]

Re: macbook pro A1728 cant charge battery

Did you try another power brick?

[alihomee]

Re: macbook pro A1728 cant charge battery

u mean adapter?

[dellxps15]

Re: macbook pro A1728 cant charge battery

voltage on f7040 without battery ?

[alihomee]

Re: macbook pro A1728 cant charge battery

the fuse near battery connector?

[dellxps15]

Re: macbook pro A1728 cant charge battery

yes

voltage on q7055

[alihomee]

Re: macbook pro A1728 cant charge battery

on fuse 12v but volts are going to 0v and again coming to 12v after every 2 seconds

[dellxps15]

Re: macbook pro A1728 cant charge battery

voltage q7030 q7035 q7055

[tata123]

Re: macbook pro A1728 cant charge battery

Check first volage on ISL62... pin3!!

And check and change the 2 Black smd cap. near the Battery status connector !!

[alihomee]

Re: macbook pro A1728 cant charge battery

did any body solve this issue before

[keeney123]

Re: macbook pro A1728 cant charge battery

on fuse 12v but volts are going to 0v and again coming to 12v after every 2 seconds

Seems like something is trying to turn on and when that 12 volt device is not turned on or recognized as being turned on it then recycles. So there is a program loop that it is stuck in for what ever reason. If this was the intent of the programmer or the program is at fault.

[dellxps15]

Re: macbook pro A1728 cant charge battery

voltage q7030 q7035 q7055

did u check these? also voltage presence for a while, if stable or goes up and down.

[alihomee]

Re: macbook pro A1728 cant charge battery

i search badcaps and found that so many people post this problem with this same model but no solution yet

[keeney123]

Re: macbook pro A1728 cant charge battery

I have not seem one with the symptoms of the 12 volts rise to12 Volts and falling to 0 volts repeating. What post is that in ?