Re: HP 15-n027sa DA0U92MB6D0 not detecting charger / doesn't turn on
OK...
So I've phoned my customer to ask him how did this happen. He said it was caused by faulty adapter (broken cable). I've immediately checked AD_ID & it reads only 1V...Also EC8 was blown, but it's been replaced...Does anyone know if the 1V on AD_ID is correct voltage? I think it should be around 7-8 volts...
Re: HP 15-n027sa DA0U92MB6D0 not detecting charger / doesn't turn on
OK guys...
It's been a long time. The laptop is fixed now. I've replaced KBC & everything is working as it should be, however I've had some problems, which I'll explain below.
#1 Heads up:
My original KBC / IO chip was IT8528E EXS . I've ordered AXS & after replacement laptop was completely dead (not even 3 blinks on charging LED). I was never ever thinking the last 3 digits/numbers would make any difference (datasheet also describe them only as a "TRACKING CODE") but after digging some forums I've found out it's actually firmware number as well. Ordered IT8528E EXS & laptop seemed to be completely fixed. So just to let you know, next time you'll be replacing IT8528E or any IT KBC, buy the same "TRACKING CODE"
#2 Heads up:
After the KBC replacement & windows installation everything was working OK except battery charging. When I've started it, BIOS reported straight away the battery needs to be replaced,press enter, blah blah. First I thought my soldering job with KBC was not 100% & MBCLK data is not communicating properly (because I knew battery is OK), however that was not the case. The problem was I've tried another BIOS dumps, but once It's been re-flashed back to my original dump, battery is charging & also reporting OK. So just to let you know again, use your own dump if possible or it may be dependant on DMI information. Not sure.
Anyway...Thanks to you all mates...I hope this info will help to anyone with quanta U92 mobo....
It's been a long time. The laptop is fixed now. I've replaced KBC & everything is working as it should be, however I've had some problems, which I'll explain below.
#1 Heads up:
My original KBC / IO chip was IT8528E EXS . I've ordered AXS & after replacement laptop was completely dead (not even 3 blinks on charging LED). I was never ever thinking the last 3 digits/numbers would make any difference (datasheet also describe them only as a "TRACKING CODE") but after digging some forums I've found out it's actually firmware number as well. Ordered IT8528E EXS & laptop seemed to be completely fixed. So just to let you know, next time you'll be replacing IT8528E or any IT KBC, buy the same "TRACKING CODE"
#2 Heads up:
After the KBC replacement & windows installation everything was working OK except battery charging. When I've started it, BIOS reported straight away the battery needs to be replaced,press enter, blah blah. First I thought my soldering job with KBC was not 100% & MBCLK data is not communicating properly (because I knew battery is OK), however that was not the case. The problem was I've tried another BIOS dumps, but once It's been re-flashed back to my original dump, battery is charging & also reporting OK. So just to let you know again, use your own dump if possible or it may be dependant on DMI information. Not sure.
Anyway...Thanks to you all mates...I hope this info will help to anyone with quanta U92 mobo....
Thanks a lot, you helped me to solve the same issue with the same symptoms
Comment