iphone 4s display light not working easy solution - Page 2 - GSM-Forum

Wites OM Tesla · 05-18-2012, 19:12

Quote:

Originally Posted by noobfix

you can get the iphone 4s coil and ic from here. if you dont have a an old phone board to take it form. change the backlight coil and ic then post results

Are you sure that is backlight Integrated Circuit?That is diode man change name so people will not get

.

Hobson · 05-18-2012, 19:50

Lot of spam for CYberdoctor today, give it a break please.

Hobson · 05-18-2012, 19:59

Actually, I'll take that back seeing as most stuff on that site is pretty useful. Work away and good luck with it.

noobfix · 05-18-2012, 23:31

Quote:

Originally Posted by Wites

Are you sure that is backlight Integrated Circuit?That is diode man change name so people will not get

.

problem is

its easier to use a more searchable name thats more familiar. like backlight ic, backlight diode just sound off... but you are right it is a diode not really integrated circuit, it will be edited. thank you for all so many other things Wite!

. keep up the good work

adonis_1003 · 05-19-2012, 01:00

Quote:

Originally Posted by gsmcdma25

iphone 4s after water damage display light not working easy solution

don't forget to press thanks

Best Regards
Rizwan

thanks for info bro.

u2scsi · 05-27-2012, 03:35

Wif'es phone took a spill in the toilet...now I'm trying to repair the backlight and am waiting for the pentalobe driver so I can open the darn thing.

Reading everything on replacing a "chip" and "coil," that diode and inductor are fairly hearty parts. Has anyone tried just reflowing the solder(burning off any residual water and/or corrosion)? Those would be in series, after the capacitor, which would explain why that jumper from cap to backlight socket is an effective fix.

noobfix · 05-27-2012, 09:09

Quote:

Originally Posted by u2scsi

Wif'es phone took a spill in the toilet...now I'm trying to repair the backlight and am waiting for the pentalobe driver so I can open the darn thing.

Reading everything on replacing a "chip" and "coil," that diode and inductor are fairly hearty parts. Has anyone tried just reflowing the solder(burning off any residual water and/or corrosion)? Those would be in series, after the capacitor, which would explain why that jumper from cap to backlight socket is an effective fix.

the diode can be short out, hence reflow wont fix it.

the coil can be either short out, or corrod by water, any change in inductance would make it useless, if it has connection beep" or not. that cap have nothing to do with the backlight circuit.

nickt_obar · 07-01-2012, 10:26

Quote:

Originally Posted by gsmcdma25

iphone 4s after water damage display light not working easy solution

don't forget to press thanks

Best Regards
Rizwan

yeahh nice post my BOSS..

nickt_obar · 07-01-2012, 11:11

Quote:

Originally Posted by gsmcdma25

iphone 4s after water damage display light not working easy solution

don't forget to press thanks

Best Regards
Rizwan

thanks thakns man i solve my iphone for this post..

dubai@mobile · 07-05-2012, 09:53

good woorrkk ....thnks

we need more......

MeiTeS · 07-15-2012, 15:37

hi to all brothers... its good solution, it start work but power ic very hot and light Ic very very hot... i need change this light ic?

manojsugandh · 07-15-2012, 17:12

simply replace the coil in front of red dot on the display connector as per picture posed above

problem solved

matet · 08-11-2012, 17:17

4s.jpg
sir i don't have this pad can you help me

yair27 · 08-14-2012, 08:33

Hi all,
i have an iphone 4s with water damage it was turn on with power but not with battery..
but now is just dead! nothing get hot the board looking good..any idea??
Thanks!

gokul2005 · 10-13-2012, 08:27

Frist check light fuse. if it was open just short fuse two points. fuse is ok then but jumber

05-27-2012, 03:35	#21 (permalink)
u2scsi Junior Member Join Date: May 2012 Posts: 1 Member: 1764426 Status: Offline Thanks Meter: 0	Wif'es phone took a spill in the toilet...now I'm trying to repair the backlight and am waiting for the pentalobe driver so I can open the darn thing. Reading everything on replacing a "chip" and "coil," that diode and inductor are fairly hearty parts. Has anyone tried just reflowing the solder(burning off any residual water and/or corrosion)? Those would be in series, after the capacitor, which would explain why that jumper from cap to backlight socket is an effective fix. Last edited by u2scsi; 05-27-2012 at 03:42.

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05-18-2012, 19:50	#17 (permalink)
Hobson Freak Poster Join Date: Feb 2011 Location: Galway, Ireland Posts: 276 Member: 1508411 Status: Offline Thanks Meter: 36	Lot of spam for CYberdoctor today, give it a break please.

05-18-2012, 19:59	#18 (permalink)
Hobson Freak Poster Join Date: Feb 2011 Location: Galway, Ireland Posts: 276 Member: 1508411 Status: Offline Thanks Meter: 36	Actually, I'll take that back seeing as most stuff on that site is pretty useful. Work away and good luck with it.

07-05-2012, 09:53	#25 (permalink)
dubai@mobile Freak Poster Join Date: Jan 2012 Location: pakistan dubai Posts: 416 Member: 1711454 Status: Offline Sonork: 100.1605681 Thanks Meter: 60	good woorrkk ....thnks we need more......

07-15-2012, 15:37	#26 (permalink)
MeiTeS Freak Poster Join Date: Jul 2009 Location: Israel, Tel-aviv Posts: 114 Member: 1085383 Status: Offline Thanks Meter: 14	hi to all brothers... its good solution, it start work but power ic very hot and light Ic very very hot... i need change this light ic?

07-15-2012, 17:12	#27 (permalink)
manojsugandh Freak Poster Join Date: Nov 2008 Location: kolkata, india Posts: 102 Member: 898155 Status: Offline Thanks Meter: 4	simply replace the coil in front of red dot on the display connector as per picture posed above problem solved

08-11-2012, 17:17	#28 (permalink)
matet Freak Poster Join Date: Aug 2009 Location: world Posts: 154 Member: 1106108 Status: Offline Thanks Meter: 40	4s.jpg sir i don't have this pad can you help me

08-14-2012, 08:33	#29 (permalink)
yair27 Major Poster Join Date: Nov 2011 Posts: 49 Member: 1697956 Status: Offline Thanks Meter: 3	Hi all, i have an iphone 4s with water damage it was turn on with power but not with battery.. but now is just dead! nothing get hot the board looking good..any idea?? Thanks!