iphone 5 nothing on display - GSM-Forum

jokkergsm · 11-29-2014, 14:56

the phone came to me with white lines on lcd and i removed l21 and c154 and also a new display because it was very scratched and the phone WORKED OK for almost a week .

then the customer called me it doesn't display anymore.

i tried with a new display
i checked all the fuses and coils around the lcd connector
i also restored the firmware

i might mention that when i connect the phone to itunes it recognizes it, but it vibates every 2 seconds

binh_boom_booom · 12-01-2014, 16:36

I was so.........help

PappaBaer2002 · 12-01-2014, 19:49

Check C351, C350 and C353 on top edge of the logic board for short.

jokkergsm · 12-02-2014, 10:04

i checked C351, C350 and C353. no short

PappaBaer2002 · 12-02-2014, 10:58

Did you replace L21 or just remove?

jokkergsm · 12-02-2014, 15:31

i removed it and the phone worked ok for a week

PappaBaer2002 · 12-02-2014, 22:00

Put back L21.

Why did you remove L21?

jokkergsm · 12-04-2014, 14:03

i removed it because i searched the forum for a solution to zebra lines, and the solution was to remove those components, which i did and it worked, the zebra lines were gone, and the phone worked just fine

i put it back and no effect, as expected

jokkergsm · 12-08-2014, 13:00

i also checked the pn5v7 on fl61, pp5v7 on fl37 and pp1v8 on fl27 with the lcd on and it's all good

11-29-2014, 14:56	#1 (permalink)
jokkergsm No Life Poster Join Date: Jan 2002 Location: freak land Age: 44 Posts: 699 Member: 8866 Status: Offline Thanks Meter: 50	iphone 5 nothing on display the phone came to me with white lines on lcd and i removed l21 and c154 and also a new display because it was very scratched and the phone WORKED OK for almost a week . then the customer called me it doesn't display anymore. i tried with a new display i checked all the fuses and coils around the lcd connector i also restored the firmware i might mention that when i connect the phone to itunes it recognizes it, but it vibates every 2 seconds

12-01-2014, 16:36	#2 (permalink)
binh_boom_booom Junior Member Join Date: Nov 2011 Posts: 7 Member: 1691376 Status: Offline Thanks Meter: 0	I was so.........help

12-01-2014, 19:49	#3 (permalink)
PappaBaer2002 Crazy Poster Join Date: Jan 2014 Posts: 51 Member: 2110377 Status: Offline Thanks Meter: 5	Check C351, C350 and C353 on top edge of the logic board for short.

12-02-2014, 10:04	#4 (permalink)
jokkergsm No Life Poster Join Date: Jan 2002 Location: freak land Age: 44 Posts: 699 Member: 8866 Status: Offline Thanks Meter: 50	i checked C351, C350 and C353. no short

12-02-2014, 10:58	#5 (permalink)
PappaBaer2002 Crazy Poster Join Date: Jan 2014 Posts: 51 Member: 2110377 Status: Offline Thanks Meter: 5	Did you replace L21 or just remove?

12-02-2014, 15:31	#6 (permalink)
jokkergsm No Life Poster Join Date: Jan 2002 Location: freak land Age: 44 Posts: 699 Member: 8866 Status: Offline Thanks Meter: 50	i removed it and the phone worked ok for a week

12-02-2014, 22:00	#7 (permalink)
PappaBaer2002 Crazy Poster Join Date: Jan 2014 Posts: 51 Member: 2110377 Status: Offline Thanks Meter: 5	Put back L21. Why did you remove L21?

12-04-2014, 14:03	#8 (permalink)
jokkergsm No Life Poster Join Date: Jan 2002 Location: freak land Age: 44 Posts: 699 Member: 8866 Status: Offline Thanks Meter: 50	i removed it because i searched the forum for a solution to zebra lines, and the solution was to remove those components, which i did and it worked, the zebra lines were gone, and the phone worked just fine i put it back and no effect, as expected

12-08-2014, 13:00	#9 (permalink)
jokkergsm No Life Poster Join Date: Jan 2002 Location: freak land Age: 44 Posts: 699 Member: 8866 Status: Offline Thanks Meter: 50	i also checked the pn5v7 on fl61, pp5v7 on fl37 and pp1v8 on fl27 with the lcd on and it's all good