Need Help for charging problem iphone 6 - GSM-Forum

ilfarna · 02-01-2017, 19:38

hello, have a iphone 6 water damage. check short in c3219_rf , lost L4539_rf. i have change ic upmic_rf and line gsm and 3g is ok..

have problem whit u1700. more 24 hour disperate check and change u1700, q1403, u1401, q1701 and all resistor and capacitor around..

whit dock connector check pulse current in battery connector

check

c1754 3v ok

c1739 1,80 ok

c1704 5 v ok

when she leaves for half the startup time charging a little fluctuated with maximum 1.05 amps, shortly before turning the screen begins to load 0,53A, then off-screen as u2 problem but every 10-15 appears a second charge 1 , 00A .. every time it reboots. I also replaced PWM, all ic RF, except baseband, small ic audio, compass ic, ic accelerometer, and all ic charging at least 3 times .. every track connected, a little bit of warming above normal during charging ..

I know not, perhaps there is still a component not shorted but with problems. someone can tell me what I can control ..?

I am becoming stupid from days

I feel one with the Ferrari that does not know driving it

cj_miller · 02-02-2017, 06:20

if iphone reboot every 3 mitutes, chek BATTERY_SWI line.

ilfarna · 02-02-2017, 09:43

check fl2511 and change c2579 , check continuity from battey connector it is all ok ..

I can not test the pin between u2 and cpu "swi battery" but there were no oxide damage it on u2 it on cpu.

It measures 4,30v oscillating with 3,50 quickly in connector battery . I do not have an oscilloscope but a good tester.

cj_miller · 02-02-2017, 09:53

1. Not fl2511. Its r2511 - 120om resistor. 2. Swi go in Tigris (u1400) not in tristar.

ilfarna · 02-02-2017, 19:12

apologizes I expressed myself badly, I controllaro 100 ohms as in other phones and checked the connected track again and it's ok. for sirurezza I also replaced the capacitor next to r2511

I am the only one who is with these problems absurd ..? I change jobs? I'm really depressing with these charging circuits

moot ox · 01-17-2019, 10:50

same problem here iphone 6 reboots every minutes

02-01-2017, 19:38	#1 (permalink)
ilfarna Junior Member Join Date: Jul 2015 Posts: 13 Member: 2428816 Status: Offline Thanks Meter: 2	Need Help for charging problem iphone 6 hello, have a iphone 6 water damage. check short in c3219_rf , lost L4539_rf. i have change ic upmic_rf and line gsm and 3g is ok.. have problem whit u1700. more 24 hour disperate check and change u1700, q1403, u1401, q1701 and all resistor and capacitor around.. whit dock connector check pulse current in battery connector check c1754 3v ok c1739 1,80 ok c1704 5 v ok when she leaves for half the startup time charging a little fluctuated with maximum 1.05 amps, shortly before turning the screen begins to load 0,53A, then off-screen as u2 problem but every 10-15 appears a second charge 1 , 00A .. every time it reboots. I also replaced PWM, all ic RF, except baseband, small ic audio, compass ic, ic accelerometer, and all ic charging at least 3 times .. every track connected, a little bit of warming above normal during charging .. I know not, perhaps there is still a component not shorted but with problems. someone can tell me what I can control ..? I am becoming stupid from days I feel one with the Ferrari that does not know driving it

02-02-2017, 06:20	#2 (permalink)
cj_miller Junior Member Join Date: May 2013 Posts: 20 Member: 1950361 Status: Offline Thanks Meter: 5	if iphone reboot every 3 mitutes, chek BATTERY_SWI line.

02-02-2017, 09:43	#3 (permalink)
ilfarna Junior Member Join Date: Jul 2015 Posts: 13 Member: 2428816 Status: Offline Thanks Meter: 2	check fl2511 and change c2579 , check continuity from battey connector it is all ok .. I can not test the pin between u2 and cpu "swi battery" but there were no oxide damage it on u2 it on cpu. It measures 4,30v oscillating with 3,50 quickly in connector battery . I do not have an oscilloscope but a good tester.

02-02-2017, 09:53	#4 (permalink)
cj_miller Junior Member Join Date: May 2013 Posts: 20 Member: 1950361 Status: Offline Thanks Meter: 5	1. Not fl2511. Its r2511 - 120om resistor. 2. Swi go in Tigris (u1400) not in tristar.

02-02-2017, 19:12	#5 (permalink)
ilfarna Junior Member Join Date: Jul 2015 Posts: 13 Member: 2428816 Status: Offline Thanks Meter: 2	apologizes I expressed myself badly, I controllaro 100 ohms as in other phones and checked the connected track again and it's ok. for sirurezza I also replaced the capacitor next to r2511 I am the only one who is with these problems absurd ..? I change jobs? I'm really depressing with these charging circuits

01-17-2019, 10:50	#6 (permalink)
moot ox Junior Member Join Date: Sep 2018 Posts: 8 Member: 2868770 Status: Offline Thanks Meter: 4	same problem here iphone 6 reboots every minutes