iphone 3gs no light solution to all - Page 3 - GSM-Forum

rcdvigo · 10-01-2010, 09:13

thank mate your the best, you´ve saved me from buying a new one

galrdn · 10-08-2010, 22:02

Thank you so much. It really works

2172 · 10-10-2010, 00:48

Has anyone had a problem with the Battery side points in the second pic being burnt out? The left gold point in the circle on my board has apparently burnt out because the gold is not there. Is this something that is repairable?

[/QUOTE]

sgh-i200 · 10-14-2010, 14:57

Quote:

Originally Posted by tayfix

Pin1 of the LCD connector is continuous with the inboard solder pad of the two LED connections on the LCD unit.

Can you show on that pic what do you mean by "solder pad of the two LED connections"?

sgh-i200 · 10-14-2010, 15:11

By "solder pad of the two LED connections" do you mean No1 on following pic?

tinner105 · 10-14-2010, 21:30

Its not on the LCD its self.
it's the connector that the LCD connects to.
The #1 connector on the circuit board.
Go three post up and look at the picture that says in the big blue letters
"LCD SIDE"
and where it says in red "lcd side points" thats what your looking for.
Did you already try changing out the 6R8 coil?
I found some that worked from DigiKey that i used to fix two of mine.
I didn't have any spare phone to get them from, these have the same markings too and were the same size as well and seem to be working with no problems.
if you need info on what o bought let me know i would be happy to share the info.
Tony

great-alex · 10-16-2010, 07:14

please i have i phone 3g when i plug charger it will not charge please help me.

TRABEL · 10-24-2010, 17:48

hi
i have 3gs water damaged.
2 points on battery side are ripped from board.
there are continues to lcd conetor still , but points are ripped.
i make jumper to point 3 from light ic pin 1 , as it wasnt linked.
but maybe problem also with leg 2 of connector ? as i still not have light

Karl-Klaus · 10-25-2010, 08:07

Good morning from Germany,

After trying to find a solution for my faulty touch response, I did a mistake by trying to connect a 3G LCD to my 3GS (it was really a lapse, I won't do that).

Of course the connectors are different, but since then I lost my backlight. Hrrmpff...

Between LCD-PIN 1 and 2 I have a Voltage (4,1 V). What about pin 3? How to test what is wrong with pin 3? Before I'll try to solder the bypass I'll be save that there is no other solution.

Thank you in advance,
Karl

TRABEL · 10-25-2010, 10:23

Quote:

Originally Posted by Karl-Klaus

Good morning from Germany,

After trying to find a solution for my faulty touch response, I did a mistake by trying to connect a 3G LCD to my 3GS (it was really a lapse, I won't do that).

Of course the connectors are different, but since then I lost my backlight. Hrrmpff...

Between LCD-PIN 1 and 2 I have a Voltage (4,1 V). What about pin 3? How to test what is wrong with pin 3? Before I'll try to solder the bypass I'll be save that there is no other solution.

Thank you in advance,
Karl

first check and replace coil

Karl-Klaus · 10-25-2010, 11:34

Thank you TRABEL,

I will have a look in my old Nokia K610i and hope I will find one.
Is it necessary to desolder the (maybe) broken one? It should be possible to glue the new one on the top of the old one?

Am I able to test the old one without desoldering with a multimeter? Any suggestions?

Many thank,
Klaus

Karl-Klaus · 10-26-2010, 07:29

Good morning again,

I have found a 2R2 in my old HTC-mobil and solder it out but I'm a little bit afraid about soldering it to my iPhone.

LCD Connector 1: I've measure also 4,1 V between pin3 and ground. So if pin 3 fired up the backlight it seems that the connector is ok?

Any possiblities to check the LCD itself?

Many thanks,
Karl

mccm · 10-27-2010, 11:29

I needs pin nos 2 connection,water damaged pin 2 and 3 no reading at all.

as we know the jumper for pin 3,but where is pin 2 connected?

my guess is inside power ic,anyone knows?

mccm · 10-28-2010, 07:54

Quote:

Originally Posted by mccm

I needs pin nos 2 connection,water damaged pin 2 and 3 no reading at all.

as we know the jumper for pin 3,but where is pin 2 connected?

my guess is inside power ic,anyone knows?

B U M P for awareness

mccm · 10-30-2010, 14:37

pin nos. 2 anyone found it wheres located?

10-08-2010, 22:02	#32 (permalink)
galrdn Junior Member Join Date: Oct 2010 Posts: 1 Member: 1412606 Status: Offline Thanks Meter: 0	Iphone 3gs coil Thank you so much. It really works

10-16-2010, 07:14	#37 (permalink)
great-alex Crazy Poster Join Date: Jun 2008 Posts: 53 Member: 792690 Status: Offline Sonork: 2348065808196 Thanks Meter: 4	3g chargering solution please i have i phone 3g when i plug charger it will not charge please help me.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
iphone 3gs no light	irangsm	iPhone 2 / iPhone 3G / iPhone 3GS	13	01-31-2011 15:33
Iphone no light solution	mamun_iqbal2000	iPhone 2 / iPhone 3G / iPhone 3GS	1	01-18-2010 16:31
Iphone 3GS No Light	HAKIM	iPhone 2 / iPhone 3G / iPhone 3GS	2	11-19-2009 13:17
3GS iPhones can no longer restore to 3.0 / 3.01- WARNING	dubaimobiles	iPhone 2 / iPhone 3G / iPhone 3GS	1	09-11-2009 02:08

10-01-2010, 09:13	#31 (permalink)
rcdvigo Junior Member Join Date: May 2010 Location: Spain Posts: 7 Member: 1311232 Status: Offline Thanks Meter: 0	thank mate your the best, you´ve saved me from buying a new one

10-10-2010, 00:48	#33 (permalink)
2172 Junior Member Join Date: Oct 2010 Posts: 1 Member: 1410696 Status: Offline Thanks Meter: 1	Has anyone had a problem with the Battery side points in the second pic being burnt out? The left gold point in the circle on my board has apparently burnt out because the gold is not there. Is this something that is repairable? [/QUOTE]

10-14-2010, 15:11	#35 (permalink)
sgh-i200 Junior Member Join Date: Sep 2010 Posts: 34 Member: 1404320 Status: Offline Thanks Meter: 53	By "solder pad of the two LED connections" do you mean No1 on following pic?

10-14-2010, 21:30	#36 (permalink)
tinner105 Freak Poster Join Date: Jul 2010 Location: California Posts: 243 Member: 1352483 Status: Offline Thanks Meter: 24	Its not on the LCD its self. it's the connector that the LCD connects to. The #1 connector on the circuit board. Go three post up and look at the picture that says in the big blue letters "LCD SIDE" and where it says in red "lcd side points" thats what your looking for. Did you already try changing out the 6R8 coil? I found some that worked from DigiKey that i used to fix two of mine. I didn't have any spare phone to get them from, these have the same markings too and were the same size as well and seem to be working with no problems. if you need info on what o bought let me know i would be happy to share the info. Tony

10-25-2010, 08:07	#39 (permalink)
Karl-Klaus Junior Member Join Date: Mar 2010 Posts: 7 Member: 1273461 Status: Offline Thanks Meter: 0	Good morning from Germany, After trying to find a solution for my faulty touch response, I did a mistake by trying to connect a 3G LCD to my 3GS (it was really a lapse, I won't do that). Of course the connectors are different, but since then I lost my backlight. Hrrmpff... Between LCD-PIN 1 and 2 I have a Voltage (4,1 V). What about pin 3? How to test what is wrong with pin 3? Before I'll try to solder the bypass I'll be save that there is no other solution. Thank you in advance, Karl

10-25-2010, 11:34	#41 (permalink)
Karl-Klaus Junior Member Join Date: Mar 2010 Posts: 7 Member: 1273461 Status: Offline Thanks Meter: 0	Thank you TRABEL, I will have a look in my old Nokia K610i and hope I will find one. Is it necessary to desolder the (maybe) broken one? It should be possible to glue the new one on the top of the old one? Am I able to test the old one without desoldering with a multimeter? Any suggestions? Many thank, Klaus

10-26-2010, 07:29	#42 (permalink)
Karl-Klaus Junior Member Join Date: Mar 2010 Posts: 7 Member: 1273461 Status: Offline Thanks Meter: 0	Good morning again, I have found a 2R2 in my old HTC-mobil and solder it out but I'm a little bit afraid about soldering it to my iPhone. LCD Connector 1: I've measure also 4,1 V between pin3 and ground. So if pin 3 fired up the backlight it seems that the connector is ok? Any possiblities to check the LCD itself? Many thanks, Karl

10-27-2010, 11:29	#43 (permalink)
mccm No Life Poster Join Date: Aug 2005 Location: singapore Age: 55 Posts: 2,430 Member: 173565 Status: Offline Thanks Meter: 71	I needs pin nos 2 connection,water damaged pin 2 and 3 no reading at all. as we know the jumper for pin 3,but where is pin 2 connected? my guess is inside power ic,anyone knows?

10-30-2010, 14:37	#45 (permalink)
mccm No Life Poster Join Date: Aug 2005 Location: singapore Age: 55 Posts: 2,430 Member: 173565 Status: Offline Thanks Meter: 71	pin nos. 2 anyone found it wheres located?