n900a suddenly no power (need help) - GSM-Forum

HUM · 08-22-2015, 01:08

n900a suddenly no power

previously power on when press lcd connecter and after resold lcd connecter on pcb it works fine but now not power no vibration no charging

HUM · 09-06-2015, 01:55

any member have schematics
sometimes set power on while pressing the pcb,but nothing show on screen just coloured dotted screen

mischiefsmommy · 09-06-2015, 06:41

Quote:

Originally Posted by HUM

n900a suddenly no power

previously power on when press lcd connecter and after resold lcd connecter on pcb it works fine but now not power no vibration no charging

L have you gotten your battery wet? It also could be with the resold connector. It's hard to tell. Take your battery out and look at it on the top there is a sticker. If it is still a different color other than red the battery is good. If it is red you need to replace the battery.

Sent from my SM-N900P using Tapatalk

mischiefsmommy · 09-06-2015, 06:42

Quote:

Originally Posted by HUM

any member have schematics
sometimes set power on while pressing the pcb,but nothing show on screen just coloured dotted screen

Try a factory reset.

Sent from my SM-N900P using Tapatalk

HUM · 09-06-2015, 07:37

set is dead how to do hard reset on dead set
read the post carefully

mischiefsmommy · 09-06-2015, 13:07

my posts didn't check your battery first.

Sent from my SM-N900P using Tapatalk

mischiefsmommy · 09-06-2015, 13:08

Correction my post said to check your battery first

Sent from my SM-N900P using Tapatalk

HUM · 09-06-2015, 21:06

one component missing form here

abhi1801 · 09-06-2015, 21:39

first tell me if u put the phone on charge is it charging ?

mischiefsmommy · 09-06-2015, 21:56

It seems they have sent you the wrong one. I have replace my charging port on my phone. I had the wrong one at first but then received the right one. If you are thinking about changing the charging port you need to make sure you use the sticker that comes with it if you have Sprint as your service. I am Not sure how to do the other ones. If I were you I would send back that piece and ask for another one. Make sure you give them the correct information on what type of phone that you have.

Quote:

Originally Posted by abhi1801

first tell me if u put the phone on charge is it charging ?

Sent from my SM-N900P using Tapatalk

Munir · 09-11-2015, 06:12

[QUOTE=HUM;11270594

one component missing form here

QUOTE]

this IC is sensor not responsible for power on.
check without lcd connected and power on and connect to pc.

on lcd connector 1.8v volt is most imp. if its shorted than it will not power on.
check with same model lcd.

Go through trouble shooting check voltage

HUM · 09-11-2015, 15:21

i cant find schematics of this model

d-Artigo · 09-12-2015, 11:06

Quote:

Originally Posted by HUM

i cant find schematics of this model

samsung sm-n900a troubleshooting + pcb lay out

HUM · 09-13-2015, 03:44

Quote:

Originally Posted by d-Artigo

samsung sm-n900a troubleshooting + pcb lay out

u have full schematics of n900a ?

HUM · 09-22-2015, 01:06

share ur expertise
first camera problem now abnormal power and abnormal display

wat u think its power ic problem ?

now it take 2-3 amp

08-22-2015, 01:08	#1 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	n900a suddenly no power (need help) n900a suddenly no power previously power on when press lcd connecter and after resold lcd connecter on pcb it works fine but now not power no vibration no charging

09-06-2015, 01:55	#2 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	any member have schematics sometimes set power on while pressing the pcb,but nothing show on screen just coloured dotted screen

09-06-2015, 07:37	#5 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	set is dead how to do hard reset on dead set read the post carefully

09-06-2015, 13:07	#6 (permalink)
mischiefsmommy Junior Member Join Date: Sep 2015 Age: 53 Posts: 5 Member: 2454989 Status: Offline Thanks Meter: 0	my posts didn't check your battery first. Sent from my SM-N900P using Tapatalk

09-06-2015, 13:08	#7 (permalink)
mischiefsmommy Junior Member Join Date: Sep 2015 Age: 53 Posts: 5 Member: 2454989 Status: Offline Thanks Meter: 0	Correction my post said to check your battery first Sent from my SM-N900P using Tapatalk

09-06-2015, 21:06	#8 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	one component missing form here

09-06-2015, 21:39	#9 (permalink)
abhi1801 Freak Poster Join Date: May 2014 Location: Kolkata, India Posts: 142 Member: 2178545 Status: Offline Thanks Meter: 24	first tell me if u put the phone on charge is it charging ?

09-11-2015, 06:12	#11 (permalink)
Munir No Life Poster Join Date: Mar 2003 Location: INDIA Age: 57 Posts: 555 Member: 25662 Status: Offline Thanks Meter: 190	[QUOTE=HUM;11270594 one component missing form here QUOTE] this IC is sensor not responsible for power on. check without lcd connected and power on and connect to pc. on lcd connector 1.8v volt is most imp. if its shorted than it will not power on. check with same model lcd. Go through trouble shooting check voltage

09-11-2015, 15:21	#12 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	i cant find schematics of this model

09-22-2015, 01:06	#15 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	share ur expertise first camera problem now abnormal power and abnormal display wat u think its power ic problem ? now it take 2-3 amp