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-   iPhone, iPad, iPod Hardware Repair (https://forum.gsmhosting.com/vbb/f631/)
-   -   iphone 6 won't turn on (https://forum.gsmhosting.com/vbb/f631/iphone-6-wont-turn-2357161/)

Nspereira 03-08-2018 16:42
iphone 6 won't turn on
 
I have an iphone 6 that won't turn on!
On diode mode i get:
1.5V at battery fpc connector
1.5V pp_vcc_main
1.5 pp_batt_vcc

can some help me?
Thanks

ninos22 03-09-2018 20:21
Quote:
Originally Posted by Nspereira (Post 13008187)
I have an iphone 6 that won't turn on!
On diode mode i get:
1.5V at battery fpc connector
1.5V pp_vcc_main
1.5 pp_batt_vcc

can some help me?
Thanks
What cause the problem?

Put phone in charge and check:

1. Battery connector for 3.8v

2. If battery connector not 3.8v, check C1704 for 5v

3. If C1704 not 5v, check Q1701

Manuel Klapper 03-10-2018 03:00
Yeah ninos22 said right. Nspereira you can try it. if can't work, guess somebody else will help you soon.

Nspereira 03-12-2018 12:34
Quote:
Originally Posted by ninos22 (Post 13010553)
What cause the problem?

Put phone in charge and check:

1. Battery connector for 3.8v

2. If battery connector not 3.8v, check C1704 for 5v

3. If C1704 not 5v, check Q1701
after putting phone in charge what i get in diode mode is:

1. 1.5V

2. C1704 - 1.5V

3. Q1701 - 2.2V

What should i do next?
Thank you!

ninos22 03-12-2018 13:30
Quote:
Originally Posted by Nspereira (Post 13015498)
after putting phone in charge what i get in diode mode is:

1. 1.5V

2. C1704 - 1.5V

3. Q1701 - 2.2V

What should i do next?
Thank you!
Check C1408 for 5v, if not check with diode mode and post result.

Nspereira 03-12-2018 16:36
Quote:
Originally Posted by ninos22 (Post 13015651)
Originally Posted by Nspereira View Post
after putting phone in charge what i get in diode mode is:

1. 1.5V

2. C1704 - 1.5V

3. Q1701 - 2.2V

What should i do next?
Thank you!
Check C1408 for 5v, if not check with diode mode and post result.
sorry the values measured before were wrong, correct values are:
C1704 , Q1701 and C1408 - 2.6V

ninos22 03-12-2018 19:50
Quote:
Originally Posted by Nspereira (Post 13016044)
sorry the values measured before were wrong, correct values are:
C1704 , Q1701 and C1408 - 2.6V
Still abnormal.

Check PP_BATT & VCC_MAIN with diode mode

Nspereira 03-13-2018 14:47
Quote:
Originally Posted by ninos22 (Post 13016326)
Still abnormal.

Check PP_BATT & VCC_MAIN with diode mode
PP_BATT - 1.2V
VCC_MAIN - 1.5V

what should i do? remove the PM IC?

ninos22 03-13-2018 19:20
Quote:
Originally Posted by Nspereira (Post 13017785)
PP_BATT - 1.2V
VCC_MAIN - 1.5V

what should i do? remove the PM IC?
sorry i don't understand you. How you check this rails with diode mode?

max value in diode mode is 0.99

red to ground
black to components

Nspereira 03-13-2018 20:04
Quote:
Originally Posted by ninos22 (Post 13018400)
sorry i don't understand you. How you check this rails with diode mode?

max value in diode mode is 0.99

red to ground
black to components
i check the capacitors on that rails, on PP_BATT i checked C1480 and for MAIN_VCC C1418

ninos22 03-13-2018 21:48
Ok so what is the value in diode mode?

Nspereira 03-13-2018 23:16
Quote:
Originally Posted by ninos22 (Post 13018602)
Ok so what is the value in diode mode?
the values i get is the one's i said before
1.2V for PP_BATT - C1480
1.5V for PP_VCC_MAIN - C1418

Nspereira 03-15-2018 15:58
can someone help me?

ninos22 03-15-2018 16:25
Quote:
Originally Posted by Nspereira (Post 13022227)
can someone help me?
I try to help you but you need to answer me, do you know what is diode mode?

Nspereira 03-15-2018 18:49
Quote:
Originally Posted by ninos22 (Post 13022270)
I try to help you but you need to answer me, do you know what is diode mode?
yes i do my friend, i would put a pic of the multimeter but i need min. 10 posts to do so.


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