Samsung Galaxy S2 I9100 short circuit solution. - Page 3 - GSM-Forum

FON-TECNO · 02-20-2013, 14:33

Thanks Mate it work 100% and phone can still charg but what i will like tokn is it they will be no problem later

baloo2000 · 02-20-2013, 23:07

thanks still where can we get that ic?

seraser · 02-24-2013, 17:50

Hello.

I have one Galaxy S2 and it can charge the battery.

But the problem is device always running on MTP mode and Windows cant recognice the device, with charger is on MTP mode, D+ and D- is in shortcut when the usb port is conected with charger or usb-adapter.

Can this fix solve this problem? Maybe this problem is with U502.

Thank you.

starXman · 03-15-2013, 17:53

Hi friends.
I have here one I9100 with short circuit between + and ground.
allready removed the capacitor, nothing changed, removed the ic, stills the same
and i been removing all those components, mainly diodes where i guess it is shorted,
but still not solved, always shorted, were can it be the problem?
Any help will be much appreciated.

starxman.

starXman · 03-15-2013, 18:01

by the way if anyone interested in that ic identification,
it is a DC/DC converter and the original samsung spare
number is 1203-006794.

biohazard · 03-16-2013, 14:14

Thanks for the solution. I had same problem today. I was using 500mA charger instead of original one and thought it was the problem. First i cleaned the board. Nothing. Then heated ic. Nothing again. After a bit research i found this solution and measured Vbat and Gnd. Yea there were short circuit. I desoldered old capacitor and connected new one. (I used 2x 10000 nF parallel cos i cant find 22000 but when i measured parallel caps. it was 22000 nF. For now that was the best thing to do) and i soldered it. It was worked as charm. Seems like everything is ok now.

tomatos666 · 03-17-2013, 06:55

Quote:

Originally Posted by postman976

Hello,

I also removed the IC (U503) and the phone was working again.
for your information: the IC is responsible for supplying (5V) external devices.
If you dont use this function, the phone will work fine without it.

Hello,
whats happen wehn i remove the Chip?
I can carge the battery ore conect with the pc?

tomatos666 · 03-21-2013, 11:08

Hello,
i have removet the IC and the capacitor. But the Phone don´t work.
I have removed because when i plug in the Battery the ic become hot.
Now the Phone when i use a power supply instead of the battery the phone take 0,04A.
When i plug in the USB cable to the Phone and a PC the phone take 0,11A.
But the phone don´t start or indicates something.
Someone have a idea?

cdicky · 03-30-2013, 17:50

Quote:

Originally Posted by tomatos666

Hello,
i have removet the IC and the capacitor. But the Phone don´t work.
I have removed because when i plug in the Battery the ic become hot.
Now the Phone when i use a power supply instead of the battery the phone take 0,04A.
When i plug in the USB cable to the Phone and a PC the phone take 0,11A.
But the phone don´t start or indicates something.
Someone have a idea?

Have 2 the same....

UU2 · 04-04-2013, 22:24

Quote:

Originally Posted by postman976

Hello,

I also removed the IC (U503) and the phone was working again.
for your information: the IC is responsible for supplying (5V) external devices.
If you dont use this function, the phone will work fine without it.

This is a fun info!!! BIG THNX!!!

Phoenixmobile · 04-05-2013, 16:25

i have short on i9100 so i removed the capacitor, now when i test the phone the buzzer beep for second and stop and no POWER..and i have the IC near the led light getting hot

UU2 · 04-08-2013, 16:19

i9100 zárlat1-1.JPG

In the panel on the red marked parts would be replaced by a capacitor 2pcs?
Can someone confirm that the IC without m "works" phone?

UU2 · 04-09-2013, 20:52

Nobody has encountered this type?

Nikkolz · 04-19-2013, 10:10

Hi,

My phone i bought for repair was water damaged. I removed the capacity C565 and I get voltage through the rest of the board (have not replaced the C565). However I can't still turn on the phone.

I'm waiting on a new LCD as the current one is cracked so not sure its because of this that it won't turn on or not.

Do I need to remove the IC or problem is resolved as there is voltage around the rest of the board? I only location where the voltage is not testing ok is next to the EMI filters F703 and F704. When I short them with the multimeter the return and menu buttons power up and phone vibrates.

Any info will be appreciated. Really lost still hopefully LCD part resolves, I will provide an update once I try with new part.

afsal pt · 04-23-2013, 13:05

thanks.................. good work keep it up

02-20-2013, 14:33	#31 (permalink)
FON-TECNO No Life Poster Join Date: Jan 2010 Location: fontecno Posts: 1,266 Member: 1201378 Status: Offline Sonork: 100.1594717 Thanks Meter: 303	Thanks Mate it work 100% and phone can still charg but what i will like tokn is it they will be no problem later

02-20-2013, 23:07	#32 (permalink)
baloo2000 No Life Poster Join Date: Oct 2007 Location: nigeria Posts: 561 Member: 601591 Status: Offline Thanks Meter: 86	thanks still where can we get that ic?

02-24-2013, 17:50	#33 (permalink)
seraser Junior Member Join Date: Oct 2010 Posts: 10 Member: 1419056 Status: Offline Thanks Meter: 6	Hello. I have one Galaxy S2 and it can charge the battery. But the problem is device always running on MTP mode and Windows cant recognice the device, with charger is on MTP mode, D+ and D- is in shortcut when the usb port is conected with charger or usb-adapter. Can this fix solve this problem? Maybe this problem is with U502. Thank you.

03-15-2013, 17:53	#34 (permalink)
starXman Freak Poster Join Date: Jan 2005 Location: Portugal Age: 41 Posts: 322 Member: 111292 Status: Offline Thanks Meter: 66	Hi friends. I have here one I9100 with short circuit between + and ground. allready removed the capacitor, nothing changed, removed the ic, stills the same and i been removing all those components, mainly diodes where i guess it is shorted, but still not solved, always shorted, were can it be the problem? Any help will be much appreciated. starxman.

03-15-2013, 18:01	#35 (permalink)
starXman Freak Poster Join Date: Jan 2005 Location: Portugal Age: 41 Posts: 322 Member: 111292 Status: Offline Thanks Meter: 66	by the way if anyone interested in that ic identification, it is a DC/DC converter and the original samsung spare number is 1203-006794.

03-16-2013, 14:14	#36 (permalink)
biohazard Junior Member Join Date: Apr 2003 Posts: 1 Member: 26358 Status: Offline Thanks Meter: 0	Thanks for the solution. I had same problem today. I was using 500mA charger instead of original one and thought it was the problem. First i cleaned the board. Nothing. Then heated ic. Nothing again. After a bit research i found this solution and measured Vbat and Gnd. Yea there were short circuit. I desoldered old capacitor and connected new one. (I used 2x 10000 nF parallel cos i cant find 22000 but when i measured parallel caps. it was 22000 nF. For now that was the best thing to do) and i soldered it. It was worked as charm. Seems like everything is ok now.

03-21-2013, 11:08	#38 (permalink)
tomatos666 Junior Member Join Date: Jan 2013 Posts: 25 Member: 1861479 Status: Offline Thanks Meter: 1	Hello, i have removet the IC and the capacitor. But the Phone don´t work. I have removed because when i plug in the Battery the ic become hot. Now the Phone when i use a power supply instead of the battery the phone take 0,04A. When i plug in the USB cable to the Phone and a PC the phone take 0,11A. But the phone don´t start or indicates something. Someone have a idea?

04-05-2013, 16:25	#41 (permalink)
Phoenixmobile Insane Poster Join Date: Jun 2009 Posts: 89 Member: 1062737 Status: Offline Thanks Meter: 8	i have short on i9100 so i removed the capacitor, now when i test the phone the buzzer beep for second and stop and no POWER..and i have the IC near the led light getting hot

04-08-2013, 16:19	#42 (permalink)
UU2 No Life Poster Join Date: Feb 2003 Posts: 603 Member: 21987 Status: Offline Thanks Meter: 27	i9100 zárlat1-1.JPG In the panel on the red marked parts would be replaced by a capacitor 2pcs? Can someone confirm that the IC without m "works" phone?

04-09-2013, 20:52	#43 (permalink)
UU2 No Life Poster Join Date: Feb 2003 Posts: 603 Member: 21987 Status: Offline Thanks Meter: 27	Nobody has encountered this type?

04-19-2013, 10:10	#44 (permalink)
Nikkolz Junior Member Join Date: Apr 2013 Posts: 12 Member: 1916693 Status: Offline Thanks Meter: 2	Hi, My phone i bought for repair was water damaged. I removed the capacity C565 and I get voltage through the rest of the board (have not replaced the C565). However I can't still turn on the phone. I'm waiting on a new LCD as the current one is cracked so not sure its because of this that it won't turn on or not. Do I need to remove the IC or problem is resolved as there is voltage around the rest of the board? I only location where the voltage is not testing ok is next to the EMI filters F703 and F704. When I short them with the multimeter the return and menu buttons power up and phone vibrates. Any info will be appreciated. Really lost still hopefully LCD part resolves, I will provide an update once I try with new part.

04-23-2013, 13:05	#45 (permalink)
afsal pt Junior Member Join Date: Jun 2008 Location: kerala Posts: 22 Member: 796626 Status: Offline Thanks Meter: 2	thanks.................. good work keep it up