CDMA version of the fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. 16 or 32 GB / Model A1349 / CDMA compatibility.

Preguntas 420 Ver todo

How do I know if the management ic is damaged?

hi, my iPhone 4 is dead only turn on when i connect the wall charger as soon i disconnect it the phone turns off i want to know if is the management ic or the real problem, i also changed the battery and clean the motherboard with alcohol....i don't know what to do any more pls help.

Contesta esta pregunta Yo también tengo este problema

Es esta una buena pregunta?

Calificación 1

Comentarios:

what is the voltage on your battery connector with the phone being plugged in. Measure the left and right outside contacts.

por

Just wondering, is this linked to my issue as well? Here: iPhone 4 After Repair Stuck on Apple Logo & Cannot Restore

It does the same thing when I unplug the iphone 4, it just immediately dies.

por

Very possible you won't know unless you test with a multimeter or a working battery. I highly recommend taking a closer look at the board and checking if you damaged something. Software restore is not going to fix the issue. .

As for the microphone problem I can almost guarantee that the problem is the audio IC (located on the top left corner of the logic board- you have to take the logic board out to see it) You can resolve the issue by removing a part of the heat shield metal and putting something like a cushion (I used folded paper+tape) to put more pressure on the IC therefore completing the connection.

por

i have a problem with my iphoen 4s

it shows error 50 in restoring iphone

i think it is power management ic problem

plz give me a solution

por

How to check if the ic is problem with multimeter?

por

Agregar un comentario

1 Respuesta

Respuesta Más Útil

Isit water damaged?

If it turns on ore than likely you have a short with the +/- you can test it by connecting the pins where the battery connect with a multimeter. The pins on each end if they have continuity tht means its shorted. Sometimes it's a bad capacitor

Fue útil esta respuesta?

Calificación 1
Agregar un comentario

Añadir tu respuesta

Pedro Sano estará eternamente agradecido.
Ver Estadísticas:

Ultimas 24 Horas: 0

Últimos 7 Días: 8

Últimos 30 Días: 33

Todo El Tiempo: 2,918