iphone 4s no wifi (greyed out) - GSM-Forum

timvandenboo · 10-20-2014, 14:37

Hello Everyone,

I have a iphone 4s with greyed out wifi.
Heating up etc didnt work als the ic became extremely hot.
So i removed. Ordered a new one (its a real one) and reballed it with stencil.

But still no wifi.

Are there maybe some broken resistors or something else?

thanks

string_master · 10-20-2014, 14:54

hello,
did u tried to change this wifi module?

timvandenboo · 10-20-2014, 16:16

yes replaced it because the old one become realllyyyyy hot. (i burned my finger on it)

arvaser · 10-20-2014, 22:46

hello friend, do you have any experience with reballing?
if so, do you sure that the you have succefully reballed it? and that the problem isn't in the new IC or in your soldering?

timvandenboo · 10-21-2014, 19:01

hello,

i did some reballing before (power ic)
i reballed the ic today again. but it still isnt working.

Does someone has some pro tips for reballing?

etypecius · 10-22-2014, 10:42

Any progres? I have similar defect

wearephones · 10-22-2014, 15:17

try to check white filter close to ic

timvandenboo · 10-22-2014, 18:18

i checked on 2 4s but for white filter there is no 'beep'.

any suggestions?

10-20-2014, 14:37	#1 (permalink)
timvandenboo Freak Poster Join Date: May 2013 Location: Netherlands Posts: 376 Member: 1939450 Status: Offline Thanks Meter: 165	iphone 4s no wifi (greyed out) Hello Everyone, I have a iphone 4s with greyed out wifi. Heating up etc didnt work als the ic became extremely hot. So i removed. Ordered a new one (its a real one) and reballed it with stencil. But still no wifi. Are there maybe some broken resistors or something else? thanks

10-20-2014, 14:54	#2 (permalink)
string_master No Life Poster Join Date: Sep 2005 Location: Novo Posts: 1,661 Member: 177503 Status: Offline Sonork: 100.1657346 Thanks Meter: 390	hello, did u tried to change this wifi module?

10-20-2014, 16:16	#3 (permalink)
timvandenboo Freak Poster Join Date: May 2013 Location: Netherlands Posts: 376 Member: 1939450 Status: Offline Thanks Meter: 165	yes replaced it because the old one become realllyyyyy hot. (i burned my finger on it)

10-20-2014, 22:46	#4 (permalink)
arvaser Freak Poster Join Date: Jun 2013 Posts: 178 Member: 1952487 Status: Offline Thanks Meter: 43	hello friend, do you have any experience with reballing? if so, do you sure that the you have succefully reballed it? and that the problem isn't in the new IC or in your soldering?

10-21-2014, 19:01	#5 (permalink)
timvandenboo Freak Poster Join Date: May 2013 Location: Netherlands Posts: 376 Member: 1939450 Status: Offline Thanks Meter: 165	hello, i did some reballing before (power ic) i reballed the ic today again. but it still isnt working. Does someone has some pro tips for reballing?

10-22-2014, 10:42	#6 (permalink)
etypecius Junior Member Join Date: Dec 2012 Posts: 11 Member: 1849700 Status: Offline Thanks Meter: 1	Any progres? I have similar defect

10-22-2014, 15:17	#7 (permalink)
wearephones Freak Poster Join Date: Oct 2003 Location: Bolton Age: 44 Posts: 491 Member: 41976 Status: Offline Thanks Meter: 33	try to check white filter close to ic

10-22-2014, 18:18	#8 (permalink)
timvandenboo Freak Poster Join Date: May 2013 Location: Netherlands Posts: 376 Member: 1939450 Status: Offline Thanks Meter: 165	i checked on 2 4s but for white filter there is no 'beep'. any suggestions?