iPhone 5s strange problem - GSM-Forum

zlaf4oo · 07-01-2015, 16:43

Hello. iPhone 5s no water damaged, no dropped.Suddenly stop working. Only backlite. When press home+power shows apple logo for a second and again backlite. Itunes says its in recovery. When try to restore 2009, 1600. After change battery and dock itunes didnt give errors but white instalation bar on phone not enough to end. 1mm left to the end of bar and phone restarts and again first situation. Try redsnow to get out of recovery - no success.
What im did until now: reball U4 and phone didnt power up. Charger shows 10mA for second and again 0.
Put another 64GB flash: same like before - 10mA for second and than 0
Anyone sugestions?
Thanks.

zlaf4oo · 07-03-2015, 11:01

Ok. Nobody knows. Will reball cpu and inform what happens.

abhshk · 07-04-2015, 13:03

Hi, you seem to have a lot of knowledge about 5s, please help me.
I have an iPhone 5s. Its battery was replaced, one day it turned off and got stuck at apple logo.
I tries restoring with DFU mode, but once it restarts it wont get detected and itunes would show 'waiting for iphone' and then give 'error 4005'
meawhile iphone stays stuck at apple logo and logic board area becomes hot.
I have tried restoring without LCD and sensor, but in vain.

I NEED HELP. Any would be appriciated.

zlaf4oo · 07-10-2015, 20:12

Heehehxexexe. Hi friend. Its nice way to ask for help in thread which someone ask for help too. Your problem seems to be soft ( http://forum.gsmhosting.com/vbb/f850...005-a-1765252/ ) but it can be easyly hard (something around cpu http://forum.gsmhosting.com/vbb/f631...005-a-1896219/ ). For your problem has a lot of info like https://www.google.bg/webhp?sourceid...005+gsmhosting
BUt for mine...hehehe nothing in particular. Аnd nobody even wants to suggest something...

lshoa · 07-11-2015, 17:21

maybe battery ways broken?
maybe shorted component?
hard to say what problem is exactly because its been dropped so something broken or loose, check components under shield.
check vcc main as this seems like its not getting power from battery properly it gets a little then shorts or the connection lost.

AYSER · 07-13-2015, 11:14

Quote:

Originally Posted by zlaf4oo

Hello. iPhone 5s no water damaged, no dropped.Suddenly stop working. Only backlite. When press home+power shows apple logo for a second and again backlite. Itunes says its in recovery. When try to restore 2009, 1600. After change battery and dock itunes didnt give errors but white instalation bar on phone not enough to end. 1mm left to the end of bar and phone restarts and again first situation. Try redsnow to get out of recovery - no success.
What im did until now: reball U4 and phone didnt power up. Charger shows 10mA for second and again 0.
Put another 64GB flash: same like before - 10mA for second and than 0
Anyone sugestions?
Thanks.

try resoldering U2 IC, if nothing change replace it.
if you still have the problem:
jumper Q2 transistor

AYSER · 07-13-2015, 11:23

Quote:

Originally Posted by abhshk

Hi, you seem to have a lot of knowledge about 5s, please help me.
I have an iPhone 5s. Its battery was replaced, one day it turned off and got stuck at apple logo.
I tries restoring with DFU mode, but once it restarts it wont get detected and itunes would show 'waiting for iphone' and then give 'error 4005'
meawhile iphone stays stuck at apple logo and logic board area becomes hot.
I have tried restoring without LCD and sensor, but in vain.

I NEED HELP. Any would be appriciated.

if the phone not detected by itunes after restarting this is Q2 transistor problem
just jumber it.
>>>>

zlaf4oo · 07-13-2015, 13:11

some days i dont have time to solve this problem. Now finding short to pp1v8. will write later

zlaf4oo · 07-13-2015, 17:03

replace u2 same thing. jump q2 same thing. Check all capasitors to pp1v8 line they are OK. Remove R1 - short is from side of cpu. Check with dc station (at 1v shows 2.4A) does something will heat and around pin u1 of cpu the temperature is with 4 graduces more than everywhere. So if i try to get down cpu and heat it over 260 degree will destroy it. But black mask..is horrible...and..its not good...will try tomorrow to reball it ans post results.

kaptanci · 07-13-2015, 21:11

Temperature of cpu is always more than everywhere. I would first check all other component on pp1v8 line. Solder a wire on pp1v8 line and give less than 1v from dcps check if cpu getting hot if not, short is somewhere else.

zlaf4oo · 07-14-2015, 07:10

Ok. As i say 1v at pp1v8 with 2.4A consumation and only cpu is heating. Everywhere temperature is around 29-30C. In area of cpu where is pin u1 temperature is 34-35C. Nothing more is hot. Actually this is not hot 34C but its the only place where is warmer then everywhere...

kaptanci · 07-14-2015, 20:02

Do u have this power consuption after powering on the device or is it there without powering on.

zlaf4oo · 07-14-2015, 20:55

without power on. see first post. Whatever...after i took down cpu and short is gone. Maybe the good thing is that at 1v8 line on the cpu( u1 pin) and ground nothing short. So just rebal cpu put it on its place put nand and u2 and see what happens.

mxkey lover · 07-14-2015, 22:02

do restore and give the error code you will get

kaptanci · 07-14-2015, 23:36

Good luck tell us the results. It is difficult to reball cpu. I tried several times but no success.

07-01-2015, 16:43	#1 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	iPhone 5s strange problem Hello. iPhone 5s no water damaged, no dropped.Suddenly stop working. Only backlite. When press home+power shows apple logo for a second and again backlite. Itunes says its in recovery. When try to restore 2009, 1600. After change battery and dock itunes didnt give errors but white instalation bar on phone not enough to end. 1mm left to the end of bar and phone restarts and again first situation. Try redsnow to get out of recovery - no success. What im did until now: reball U4 and phone didnt power up. Charger shows 10mA for second and again 0. Put another 64GB flash: same like before - 10mA for second and than 0 Anyone sugestions? Thanks.

07-03-2015, 11:01	#2 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	Ok. Nobody knows. Will reball cpu and inform what happens.

07-04-2015, 13:03	#3 (permalink)
abhshk Junior Member Join Date: Jun 2015 Posts: 7 Member: 2416810 Status: Offline Thanks Meter: 0	Hi, you seem to have a lot of knowledge about 5s, please help me. I have an iPhone 5s. Its battery was replaced, one day it turned off and got stuck at apple logo. I tries restoring with DFU mode, but once it restarts it wont get detected and itunes would show 'waiting for iphone' and then give 'error 4005' meawhile iphone stays stuck at apple logo and logic board area becomes hot. I have tried restoring without LCD and sensor, but in vain. I NEED HELP. Any would be appriciated.

07-10-2015, 20:12	#4 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	Heehehxexexe. Hi friend. Its nice way to ask for help in thread which someone ask for help too. Your problem seems to be soft ( http://forum.gsmhosting.com/vbb/f850...005-a-1765252/ ) but it can be easyly hard (something around cpu http://forum.gsmhosting.com/vbb/f631...005-a-1896219/ ). For your problem has a lot of info like https://www.google.bg/webhp?sourceid...005+gsmhosting BUt for mine...hehehe nothing in particular. Аnd nobody even wants to suggest something...

07-11-2015, 17:21	#5 (permalink)
lshoa Freak Poster Join Date: May 2015 Location: Ireland Age: 51 Posts: 142 Member: 2393796 Status: Offline Thanks Meter: 10	maybe battery ways broken? maybe shorted component? hard to say what problem is exactly because its been dropped so something broken or loose, check components under shield. check vcc main as this seems like its not getting power from battery properly it gets a little then shorts or the connection lost.

07-13-2015, 13:11	#8 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	some days i dont have time to solve this problem. Now finding short to pp1v8. will write later

07-13-2015, 17:03	#9 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	replace u2 same thing. jump q2 same thing. Check all capasitors to pp1v8 line they are OK. Remove R1 - short is from side of cpu. Check with dc station (at 1v shows 2.4A) does something will heat and around pin u1 of cpu the temperature is with 4 graduces more than everywhere. So if i try to get down cpu and heat it over 260 degree will destroy it. But black mask..is horrible...and..its not good...will try tomorrow to reball it ans post results.

07-13-2015, 21:11	#10 (permalink)
kaptanci Freak Poster Join Date: Nov 2014 Location: Germany Posts: 265 Member: 2289832 Status: Offline Thanks Meter: 48	Temperature of cpu is always more than everywhere. I would first check all other component on pp1v8 line. Solder a wire on pp1v8 line and give less than 1v from dcps check if cpu getting hot if not, short is somewhere else.

07-14-2015, 07:10	#11 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	Ok. As i say 1v at pp1v8 with 2.4A consumation and only cpu is heating. Everywhere temperature is around 29-30C. In area of cpu where is pin u1 temperature is 34-35C. Nothing more is hot. Actually this is not hot 34C but its the only place where is warmer then everywhere...

07-14-2015, 20:02	#12 (permalink)
kaptanci Freak Poster Join Date: Nov 2014 Location: Germany Posts: 265 Member: 2289832 Status: Offline Thanks Meter: 48	Do u have this power consuption after powering on the device or is it there without powering on.

07-14-2015, 20:55	#13 (permalink)
zlaf4oo Major Poster Join Date: Aug 2010 Location: Bulgaria Age: 35 Posts: 49 Member: 1380602 Status: Offline Thanks Meter: 2	without power on. see first post. Whatever...after i took down cpu and short is gone. Maybe the good thing is that at 1v8 line on the cpu( u1 pin) and ground nothing short. So just rebal cpu put it on its place put nand and u2 and see what happens.

07-14-2015, 22:02	#14 (permalink)
mxkey lover Freak Poster Join Date: Jan 2010 Location: iraq Posts: 172 Member: 1212320 Status: Offline Thanks Meter: 46	do restore and give the error code you will get

07-14-2015, 23:36	#15 (permalink)
kaptanci Freak Poster Join Date: Nov 2014 Location: Germany Posts: 265 Member: 2289832 Status: Offline Thanks Meter: 48	Good luck tell us the results. It is difficult to reball cpu. I tried several times but no success.