iphone 3gs no light solution to all - Page 4 - GSM-Forum

mccm · 10-31-2010, 05:18

Urgently needs all pros for help to locate the pin 2 position.

kenni978 · 10-31-2010, 07:39

i have tryed the next coils:
2R2 OK from iPhone 2G logic board.
3R3 OK from iPhone 2G logic board.
100 OK from iPod nano 1G logic board (there are two 100 coils on this board)
220 NOT worked for me.

I will let you know if I find more coils.

Khronod · 10-31-2010, 18:25

Question:

How do you unsolder the coil anyways? and how do you solder a new one on?

thanks

kenni978 · 11-02-2010, 07:28

with hot air reflow system. you can buy one for $50-$80. But it's not easy to use, required much traning. Without that you will only damage the phone.
eg.:
ProcessMate

mccm · 11-02-2010, 18:49

Quote:

Originally Posted by kenni978

i have tryed the next coils:
2R2 OK from iPhone 2G logic board.
3R3 OK from iPhone 2G logic board.
100 OK from iPod nano 1G logic board (there are two 100 coils on this board)
220 NOT worked for me.

I will let you know if I find more coils.

Pin 2 has 5v output,don't think is coil @fault.direct from some capacitor or under power ic

Khronod · 11-04-2010, 02:09

ug hwhat phones exactly have the coil? ive opened too many phones

fendermostro · 11-10-2010, 04:12

So where to buy the DC/DC converter? C'mon people share the source.

udai · 11-12-2010, 04:33

@khronod.....pl check any nokia phone u get the coil

j.dee · 11-14-2010, 10:26

fixed mine i got the coil from a guy on ebay for £7.50 he even explained how to replace the coil...heres his ebay id if any1 wants a new coil...

Seller information

Member ID adrianwoodward ( Feedback score of 408

)

100% Positive feedback

tinner105 · 11-16-2010, 06:45

Theres sellers on EBay in the states too.

$6.50

etscellular · 11-16-2010, 07:38

Quote:

Originally Posted by : ronfreek :

here is how i solved it
whel the problem is the coil
this one and the coil i used is from k800i
and its called r220
br
ron

Hi Guys

I had the 3gs no light i did replace the coil 6r8 to 2r2 then the light works good but no touch screen reponds. then i tried with 1 more board 3gs with the coil 100 from 3g board and again i had the same problem light is on but no touch screen respond.
Please help guy to see what did i do wrong.

Thanks all guyssssss

ijazjaan · 11-16-2010, 07:47

thanxxxxxxxxxxxxxxxxxxxxxx

Davaral · 11-16-2010, 10:50

yes its works solutions
i change coil nokia 2115
fiola.... my LCD iphone 3GS it lights
thx man

godjob

oliverkop · 11-16-2010, 11:13

I buy replacement coils / chokes in the UK from Farnell.

They're not a perfect fit but they work perfectly and only cost £0.26 each

Farnell part number 1717401

fonefixer1 · 11-18-2010, 09:19

iphone 3gs coil
fixed mine i got the coil from a guy on ebay for £7.50 he even explained how to replace the coil...heres his ebay id if any1 wants a new coil...

Seller information

Member ID adrianwoodward ( Feedback score of 409)

100% Positive feedback

11-14-2010, 10:26	#54 (permalink)
j.dee Junior Member Join Date: May 2007 Posts: 4 Member: 508176 Status: Offline Thanks Meter: 2	iphone 3gs coil fixed mine i got the coil from a guy on ebay for £7.50 he even explained how to replace the coil...heres his ebay id if any1 wants a new coil... Seller information Member ID adrianwoodward ( Feedback score of 408) 100% Positive feedback

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10-31-2010, 05:18	#46 (permalink)
mccm No Life Poster Join Date: Aug 2005 Location: singapore Age: 55 Posts: 2,430 Member: 173565 Status: Offline Thanks Meter: 71	Urgently needs all pros for help to locate the pin 2 position.

10-31-2010, 07:39	#47 (permalink)
kenni978 Junior Member Join Date: Aug 2010 Posts: 6 Member: 1365091 Status: Offline Thanks Meter: 2	i have tryed the next coils: 2R2 OK from iPhone 2G logic board. 3R3 OK from iPhone 2G logic board. 100 OK from iPod nano 1G logic board (there are two 100 coils on this board) 220 NOT worked for me. I will let you know if I find more coils.

10-31-2010, 18:25	#48 (permalink)
Khronod Junior Member Join Date: Oct 2010 Posts: 2 Member: 1432026 Status: Offline Thanks Meter: 0	Question: How do you unsolder the coil anyways? and how do you solder a new one on? thanks

11-02-2010, 07:28	#49 (permalink)
kenni978 Junior Member Join Date: Aug 2010 Posts: 6 Member: 1365091 Status: Offline Thanks Meter: 2	with hot air reflow system. you can buy one for $50-$80. But it's not easy to use, required much traning. Without that you will only damage the phone. eg.: ProcessMate

11-04-2010, 02:09	#51 (permalink)
Khronod Junior Member Join Date: Oct 2010 Posts: 2 Member: 1432026 Status: Offline Thanks Meter: 0	ug hwhat phones exactly have the coil? ive opened too many phones

11-10-2010, 04:12	#52 (permalink)
fendermostro Junior Member Join Date: May 2010 Posts: 9 Member: 1300256 Status: Offline Thanks Meter: 2	So where to buy the DC/DC converter? C'mon people share the source.

11-12-2010, 04:33	#53 (permalink)
udai Freak Poster Join Date: May 2001 Location: india Age: 58 Posts: 303 Member: 4798 Status: Offline Sonork: 100.1617239 Thanks Meter: 5	@khronod.....pl check any nokia phone u get the coil

11-16-2010, 06:45	#55 (permalink)
tinner105 Freak Poster Join Date: Jul 2010 Location: California Posts: 243 Member: 1352483 Status: Offline Thanks Meter: 24	Theres sellers on EBay in the states too. $6.50

11-16-2010, 07:47	#57 (permalink)
ijazjaan Insane Poster Join Date: Oct 2007 Posts: 91 Member: 611022 Status: Offline Thanks Meter: 23	thanxxxxxxxxxxxxxxxxxxxxxx

11-16-2010, 10:50	#58 (permalink)
Davaral Crazy Poster Join Date: Oct 2006 Posts: 50 Member: 363993 Status: Offline Thanks Meter: 14	yes its works solutions i change coil nokia 2115 fiola.... my LCD iphone 3GS it lights thx man godjob

11-16-2010, 11:13	#59 (permalink)
oliverkop Freak Poster Join Date: Mar 2008 Posts: 117 Member: 717129 Status: Offline Thanks Meter: 11	I buy replacement coils / chokes in the UK from Farnell. They're not a perfect fit but they work perfectly and only cost £0.26 each Farnell part number 1717401

11-18-2010, 09:19	#60 (permalink)
fonefixer1 Junior Member Join Date: Nov 2010 Posts: 6 Member: 1445673 Status: Offline Thanks Meter: 1	iphone 3gs coil fixed mine i got the coil from a guy on ebay for £7.50 he even explained how to replace the coil...heres his ebay id if any1 wants a new coil... Seller information Member ID adrianwoodward ( Feedback score of 409) 100% Positive feedback