iPhone 5 series (5c, 5s, 5) draining issue - GSM-Forum

haddar · 07-22-2016, 21:11

Hi guys
i have an issue with few iphones 5s and 5c. the issue is the battery which drains very quickly (10 hours from 100% to 0%) the phone however works perfectly good and charges and connects to PC very well. however, i noticed that when they are off, they all won't turn on or charge until I push the power button
Any idea?

orx · 07-24-2016, 19:51

Hi
If you make a searching in the forum you find several thread on question..

Anyway your problem is calling U2 IC and / or Q2 ic ..reballing or replace .

controlme · 07-25-2016, 08:57

when phone is on, plug charging in but have AMP meter attached to the charging cable.

On normal charge when phone is on should be between 0.2 a 0.5

While watching the meter, turn phone to sleep with power button. (phone on, screen off)
And re-check the meter. Does it read the same as when it was powered on?
If it drops to 0.00, you've got to Jump the Q4 (5S) or Q5 (5C)

Experienced issues like this before, replaced U2 and checked Q2 was creating PPV5v0_Prot for both U7 and U2.

Jumping the Q4 solved this for me

haddar · 07-25-2016, 22:08

very good explanation! thanks

In my case, all phones behave correctly and charge well at full phone on, stand by or phone off. the only issue is that the battery drains quickly, and in some cases, the phone won't start up when plugged to charger unless you push the power button

tarakhail · 07-25-2016, 23:53

connect the hand set to psu and see if it takes any current itself it means something is short so remove short and in case of not tuning on while inserting charging cable try new dock flex.

07-22-2016, 21:11	#1 (permalink)
haddar Freak Poster Join Date: Jan 2004 Posts: 263 Member: 48755 Status: Offline Thanks Meter: 30	iPhone 5 series (5c, 5s, 5) draining issue Hi guys i have an issue with few iphones 5s and 5c. the issue is the battery which drains very quickly (10 hours from 100% to 0%) the phone however works perfectly good and charges and connects to PC very well. however, i noticed that when they are off, they all won't turn on or charge until I push the power button Any idea?

07-24-2016, 19:51	#2 (permalink)
orx No Life Poster Join Date: Oct 2012 Location: Republic of Serenissima Posts: 1,516 Member: 1825965 Status: Offline Thanks Meter: 874	Hi If you make a searching in the forum you find several thread on question.. Anyway your problem is calling U2 IC and / or Q2 ic ..reballing or replace .

07-25-2016, 08:57	#3 (permalink)
controlme Junior Member Join Date: May 2006 Posts: 26 Member: 277668 Status: Offline Thanks Meter: 1	when phone is on, plug charging in but have AMP meter attached to the charging cable. On normal charge when phone is on should be between 0.2 a 0.5 While watching the meter, turn phone to sleep with power button. (phone on, screen off) And re-check the meter. Does it read the same as when it was powered on? If it drops to 0.00, you've got to Jump the Q4 (5S) or Q5 (5C) Experienced issues like this before, replaced U2 and checked Q2 was creating PPV5v0_Prot for both U7 and U2. Jumping the Q4 solved this for me

07-25-2016, 22:08	#4 (permalink)
haddar Freak Poster Join Date: Jan 2004 Posts: 263 Member: 48755 Status: Offline Thanks Meter: 30	very good explanation! thanks In my case, all phones behave correctly and charge well at full phone on, stand by or phone off. the only issue is that the battery drains quickly, and in some cases, the phone won't start up when plugged to charger unless you push the power button

07-25-2016, 23:53	#5 (permalink)
tarakhail Freak Poster Join Date: Aug 2014 Location: UK Posts: 408 Member: 2240742 Status: Offline Thanks Meter: 76	connect the hand set to psu and see if it takes any current itself it means something is short so remove short and in case of not tuning on while inserting charging cable try new dock flex.