3GS dead while sensor connektor replace - GSM-Forum

Jack_OH · 06-29-2012, 14:28

someone would to replce the sensor connektor, but the phone is dead.

no usb,itunes...

what happened?

Jack_OH · 06-29-2012, 14:40

i can't see any dissolved component....

Jack_OH · 06-29-2012, 15:48

i checked this:

the orange 1.8V is missing, or i must push the power button?

Jack_OH · 06-30-2012, 08:02

What can i check?
Where can i start?

Thank you!!!

Jack_OH · 06-30-2012, 12:56

I checked this:

Everything is good...

Have anybody idea????????????????????????????

dog68 · 06-30-2012, 13:20

Have you checked the connector 3 pads? what happened? was it working before connector was removed?

Jack_OH · 06-30-2012, 13:50

What can i check the connector 3 pads?
The pads is clear, no short. (you can see the first picure)

I don't know, before working or not. (The seller say working...)

thanks

**Wites OM Tesla** · 06-30-2012, 15:42

Quote:

Originally Posted by Jack_OH

What can i check the connector 3 pads?
The pads is clear, no short. (you can see the first picure)

I don't know, before working or not. (The seller say working...)

thanks

Possible you used too much heat and now touch ic have shorted balls if so need reball to solve be careful near is cpu it could become even more dead.

Jack_OH · 07-01-2012, 18:19

i found a broken part: U11_AP

it's possible, this is my problem?

**Wites OM Tesla** · 07-01-2012, 20:33

Chk at C30_AP after you pres power button if 1.2V is present then problem is not U11_AP if voltage missing or low then this ic is the problem you will need to replace it.

Jack_OH · 07-02-2012, 17:19

I checked the C30_AP both 2 pins and the gnd, but nothing...

that is the problem?

can i short this ic, or only i can replace this?

can i buy this ic?

thanks!!!!

dog68 · 07-02-2012, 17:56

You can jump it, like picture

Jack_OH · 07-02-2012, 18:44

thank you very much!

and how can i remove the glue? with aceton?

**Wites OM Tesla** · 07-02-2012, 22:35

Quote:

Originally Posted by dog68

You can jump it, like picture

NO JUMPERS in place of U11_AP only replace.
This is voltage regulator LD39115J12R datasheet, Pinout ,application circuits 150 MA Low Quiescent Current Low Noise Voltage Regulator

Message to Jack-OH if i knew you even not know how to clean glue i would not reply to you sorry no offence.

dog68 · 07-02-2012, 22:50

Quote:

Originally Posted by dog68

You can jump it, like picture

I tried to edit this , but could not get on forum, please ignore my ignorance

06-29-2012, 14:28	#1 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	3GS dead while sensor connektor replace someone would to replce the sensor connektor, but the phone is dead. no usb,itunes... what happened?

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06-29-2012, 14:40	#2 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	i can't see any dissolved component....

06-29-2012, 15:48	#3 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	i checked this: the orange 1.8V is missing, or i must push the power button?

06-30-2012, 08:02	#4 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	What can i check? Where can i start? Thank you!!!

06-30-2012, 12:56	#5 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	I checked this: Everything is good... Have anybody idea????????????????????????????

06-30-2012, 13:20	#6 (permalink)
dog68 Freak Poster Join Date: Mar 2012 Location: cambridgeshire, England Age: 44 Posts: 423 Member: 1728699 Status: Offline Thanks: 136 Thanked 91 Times in 80 Posts	Have you checked the connector 3 pads? what happened? was it working before connector was removed?

06-30-2012, 13:50	#7 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	What can i check the connector 3 pads? The pads is clear, no short. (you can see the first picure) I don't know, before working or not. (The seller say working...) thanks

07-01-2012, 18:19	#9 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	i found a broken part: U11_AP it's possible, this is my problem?

07-01-2012, 20:33	#10 (permalink)
Wites OM Tesla Moderator Join Date: Apr 2009 Location: Moldova,Chisinau. Age: 27 Posts: 3,432 Member: 1017374 Status: Offline Thanks: 68 Thanked 2,439 Times in 972 Posts	Chk at C30_AP after you pres power button if 1.2V is present then problem is not U11_AP if voltage missing or low then this ic is the problem you will need to replace it.

07-02-2012, 17:19	#11 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	I checked the C30_AP both 2 pins and the gnd, but nothing... that is the problem? can i short this ic, or only i can replace this? can i buy this ic? thanks!!!!

07-02-2012, 18:44	#13 (permalink)
Jack_OH Freak Poster Join Date: Mar 2007 Age: 28 Posts: 206 Member: 475448 Status: Offline Thanks: 33 Thanked 18 Times in 15 Posts	thank you very much! and how can i remove the glue? with aceton?