iPhone Hardware problems in one thread

[tuananh15986]

I have problem with CPU A4 iphone 4. there have iphone 4 schematic but I dont know define pin on real CPU. So I need to define A4 cpu Pin

plz help
Thanks!

[ugurs]

iPhone 4 home button doesn't work at all. I changed charging flex and home key but problem continues. It works when I try to enter DFU mode. Any help?

[Wites OM Tesla]

Originally Posted by ugurs

iPhone 4 home button doesn't work at all. I changed charging flex and home key but problem continues. It works when I try to enter DFU mode. Any help?

What was with the phone that it stopped working?

[rexter]

hi guys i have an iphone 3g, the problem is that it is charging but when i connect it on itunes, it is not detecting it on my computer, i already tried to dfu mode the iphone but it also does not detect the phone,already replace the charging dock but it gave the same result, do you guys know any solution to this?.


thanks in advance

[Wites OM Tesla]

Originally Posted by rexter

hi guys i have an iphone 3g, the problem is that it is charging but when i connect it on itunes, it is not detecting it on my computer, i already tried to dfu mode the iphone but it also does not detect the phone,already replace the charging dock but it gave the same result, do you guys know any solution to this?.


thanks in advance

Have you tried other usb cable?

[exit_exit2050]

Originally Posted by Wites

What was with iPhone after Water or dropped?

no my bro charging voltage over hogaee

charging ic hit hotee he

any bade help

[Wites OM Tesla]

Originally Posted by exit_exit2050

no my bro charging voltage over hogaee

charging ic hit hotee he

any bade help

I don't understand what you say "hogaee,hit hotee he"what do you
mean charging ic is heating or what?

[rexter]

Originally Posted by Wites

Have you tried other usb cable?

yes of course when u plug on the usb or in home charger it charges but it is not detecting on itunes.. , any hardware solution you might know to repair this? cause as of now im still clueless...

[Wites OM Tesla]

Originally Posted by rexter

yes of course when u plug on the usb or in home charger it charges but it is not detecting on itunes.. , any hardware solution you might know to repair this? cause as of now im still clueless...

When you connect to pc it say something that new hardware detected
to install drivers or nothing?

[rexter]

Originally Posted by Wites

When you connect to pc it say something that new hardware detected
to install drivers or nothing?

yeah nothing no detection on the computer whatso ever

[Wites OM Tesla]

Originally Posted by rexter

yeah nothing no detection on the computer whatso ever

Then is hardware problem,look on board dock connector,flex connector
if it's clean,soldered no oxidation look for missing components,black filters.
What was with the phone that it stopped connecting to pc?

[rexter]

Originally Posted by Wites

Then is hardware problem,look on board dock connector,flex connector
if it's clean,soldered no oxidation look for missing components,black filters.
What was with the phone that it stopped connecting to pc?

yeah logic board would be the problem for it, i already change the dock connector dunno bout missing component coz as of the moment i dont have a 3g board with me, but do you have any solution for this? it was working before but when i change the cover for this iphone, then the complications came, it was charging but it was not detected by computer, not ever usb device not recognized,,

[Wites OM Tesla]

Originally Posted by rexter

yeah logic board would be the problem for it, i already change the dock connector dunno bout missing component coz as of the moment i dont have a 3g board with me, but do you have any solution for this? it was working before but when i change the cover for this iphone, then the complications came, it was charging but it was not detected by computer, not ever usb device not recognized,,

Check this location on board if damaged make jumpers

[rexter]

Originally Posted by Wites

Check this location on board if damaged make jumpers

how can i check if this damage? and should i do it directly? or can i find an ic for this?

[Wites OM Tesla]

Originally Posted by rexter

how can i check if this damage? and should i do it directly? or can i find an ic for this?

1 Remove gnd shield & look if that crystal ic not have crack
it may have cold solder try to reheat i use 350C,or unsolder
it & make jumpers to test if that ic problem.
There is a resistor 0 ohms check it.
Post result.