iPhone Hardware problems in one thread - Page 21 - GSM-Forum

Wites OM Tesla · 09-11-2011, 20:31

Quote:

Originally Posted by bmarcello

I do not have experience with the 3GS schematics (if not precise).
But I checked the U20 on schematics and on components and they are place correctly on the board.
I followed the Pin5 and seems fine on the board (goes up to U20).
The only missed contact that I see is the pin3 with the flex...

What to do? Should I remove the jumper from TP70? TP70 on board is bringing directly to xw7 and then to Q3 and to the coil L6... seems correct the schematics...

Pin5=0volt, believe due to the PIN4... of course I had to remove the lcd to measure.
I will try with the LCD connected...

What do u think?
Thx

Sorry i think you are right Q3 & L6 are for light,and you don't have light because on flex is damaged that pin.

bmarcello · 09-11-2011, 20:54

Thanks Wites... today I am tired I will leave soon...
I will continue tomorrow and installing the resistor...
Most likely I will end up in buying a lcd, but before I need the phone working...
Keep in touch tomorrow and really thanks for your help.
Bye

Wites OM Tesla · 09-11-2011, 21:05

Good see you tomorrow.

bmarcello · 09-12-2011, 22:03

resistor will arrive for the end of the week... I hope...

Kit0 · 09-13-2011, 22:02

Hi all
I'm new here and it' s a pleasure to be here with you and on great forum...
Well, i have a question maybe someone can help me out.
On this pic:
http://4.bp.********.com/_9Z7dTG7H9H...arging.png.jpg

What is the values of this filters?
And where i can buy it?

Thank you in advantage.

Kit0 · 09-14-2011, 00:31

Quote:

Originally Posted by Kit0

Hi all
I'm new here and it' s a pleasure to be here with you and on great forum...
Well, i have a question maybe someone can help me out.
On this pic:
http://4.bp.********.com/_9Z7dTG7H9H...arging.png.jpg

What is the values of this filters?
And where i can buy it?

Thank you in advantage.

Case solved , jumping the filters and charging again!
Thanks

kiddee · 09-16-2011, 10:48

Quote:

Originally Posted by kiddee

hi guys! My iphone 3GS just keep draining battery, although it was off, i've change the battery but the problem's still persist.
May be it's shorted somewhere, can you show me how to check?
Any help would be appreciated..

Quote:

Originally Posted by Wites

Insert a charged battery check what is heating,where heats there is short.
Or with a multimeter check battery connector if not shorting.

hi Wites,
The battery connector is not shorting.
I charged the battery apart from the phone, then assemble, turn on, nothing heat, but when I plug the charger in, the Power Management IC is extremely heat, may be it's dead?

Wites OM Tesla · 09-16-2011, 13:28

Quote:

Originally Posted by kiddee

hi Wites,
The battery connector is not shorting.
I charged the battery apart from the phone, then assemble, turn on, nothing heat, but when I plug the charger in, the Power Management IC is extremely heat, may be it's dead?

There may be something else causing to heat PMIC,check coils & capacitors if not shot in gnd.

luckyali1985 · 09-18-2011, 09:25

hi sir i need iphone home butten is not working

luckyali1985 · 09-18-2011, 09:35

hi sir
my mobile is coming no display & not charging i change display & charging base
after mobile is ok but home butten is not working any body
give me any solution
advance thanks

Wites OM Tesla · 09-19-2011, 11:55

Quote:

Originally Posted by luckyali1985

hi sir
my mobile is coming no display & not charging i change display & charging base
after mobile is ok but home butten is not working any body
give me any solution
advance thanks

Check pins of home button if not damaged/broken,check near of dock connector on board for damaged missing components.
Post result.

vandy_phang · 09-19-2011, 15:38

That's can be software problem sir

petter76 · 09-20-2011, 15:09

I have a 3g which is very bad the Microphone low sound and noises, but its not Microphone because I changed the dock connector, complete and unchanged by this issue.

Any Ideas?

Thanks

Wites OM Tesla · 09-20-2011, 15:43

Quote:

Originally Posted by petter76

I have a 3g which is very bad the Microphone low sound and noises, but its not Microphone because I changed the dock connector, complete and unchanged by this issue.

Any Ideas?

Thanks

Phone after water?
You replaced dock connector,but microphone didn't replaced???

petter76 · 09-20-2011, 15:55

Quote:

Originally Posted by Wites

Phone after water?
You replaced dock connector,but microphone didn't replaced???

no no water damage!

Microphone with komplette dock replaced!
And works not, teh mic..
Motherboard problem.

Solution?

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09-11-2011, 20:54	#302 (permalink)
bmarcello Insane Poster Join Date: Sep 2011 Posts: 65 Member: 1652210 Status: Offline Thanks Meter: 1	Thanks Wites... today I am tired I will leave soon... I will continue tomorrow and installing the resistor... Most likely I will end up in buying a lcd, but before I need the phone working... Keep in touch tomorrow and really thanks for your help. Bye

09-11-2011, 21:05	#303 (permalink)
Wites OM Tesla No Life Poster Join Date: Apr 2009 Location: Moldova,Chisinau. Age: 38 Posts: 3,473 Member: 1017374 Status: Offline Thanks Meter: 2,594	Good see you tomorrow.

09-12-2011, 22:03	#304 (permalink)
bmarcello Insane Poster Join Date: Sep 2011 Posts: 65 Member: 1652210 Status: Offline Thanks Meter: 1	resistor will arrive for the end of the week... I hope...

09-13-2011, 22:02	#305 (permalink)
Kit0 Insane Poster Join Date: Sep 2011 Posts: 99 Member: 1654366 Status: Offline Thanks Meter: 0	Hi all I'm new here and it' s a pleasure to be here with you and on great forum... Well, i have a question maybe someone can help me out. On this pic: http://4.bp.********.com/_9Z7dTG7H9H...arging.png.jpg What is the values of this filters? And where i can buy it? Thank you in advantage.

09-18-2011, 09:25	#309 (permalink)
luckyali1985 Freak Poster Join Date: Dec 2009 Location: U A E Posts: 334 Member: 1186634 Status: Offline Thanks Meter: 11	hi sir i need iphone home butten is not working

09-18-2011, 09:35	#310 (permalink)
luckyali1985 Freak Poster Join Date: Dec 2009 Location: U A E Posts: 334 Member: 1186634 Status: Offline Thanks Meter: 11	hi sir my mobile is coming no display & not charging i change display & charging base after mobile is ok but home butten is not working any body give me any solution advance thanks

09-19-2011, 15:38	#312 (permalink)
vandy_phang Junior Member Join Date: Sep 2009 Location: indonesia Posts: 19 Member: 1128424 Status: Offline Sonork: vandyphang Thanks Meter: 1	That's can be software problem sir

09-20-2011, 15:09	#313 (permalink)
petter76 Junior Member Join Date: Mar 2010 Location: Hungary Age: 48 Posts: 18 Member: 1250019 Status: Offline Thanks Meter: 0	I have a 3g which is very bad the Microphone low sound and noises, but its not Microphone because I changed the dock connector, complete and unchanged by this issue. Any Ideas? Thanks