Monday, 27 November 2017

iphone 6s no sound audio ic replacement in hamilton new zeland


Suddenly your expensive iphone has no sound. iphone 6s plus no sound audio ic replacement in hamilton new zealand. Most of the iphone repair shop will replace ear speaker or charging port which has mic on it. If you are lucky sound will work. But if after replacing ear speaker mic or loud speaker if there is still no sound than the audio ic on iphone has failed. Replacing audio ic on iphone is very skilled job but at applefix hamilton we do it in our state of art workshop. The iphone 6s plus no sound audio ic replacement we done today was one of the iphone which unfortunately both audio ic has failed. There was no sound in ear speaker no mic and no loud speaker. First we replace the audio ic part number u3500 or u3101 if this audio ic failed than your ear speaker and mic will not work. And there is another audio ic part number u3700 if this failed than loud speaker will not work. 


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Saturday, 18 November 2017

iphone logic board repair in hamilton new zealand

iphone logic board repair in hamilton new zealand

Your iphone suddenly died and repair shop told you it is not fixable? Professional iphone logic board repair in hamilton new zealand at applefix 85/a victoria street. We fixed lot of iphones which came from other iphone repair shop as not fixable. It is amazing how a small 50 cent part can bring down your expensive iphone. Finding a faulty part on the iPhone logic board need extensive knowledge, reading schematic diagrams and a detail knowledge of each component of the board. How to check small parts like capacitors, resistors, fuses, diodes , inductors ics and coils.  Below is the picture of iphone 7 which came to us as not fixable. We fixed it same day. There was a short capacitor which caused pp_cpu line short to ground.

read further here 

Tuesday, 10 October 2017

iPhone 7 black screen of death repair in hamilton new zealand

Got no display  iPhone 7 black screen of death repair at AppleFixHamilton. There could be many reasons why iPhone 7 lcd screen gone completly black.
o   It could be because of impact damage.
o   Battery connectors not removed while replacing lc
o   Poor quality copy lcd used.
o   Electric discharge because of not working on antistatic mat with ESD clip.
It could happen even if none of all of above. iPhone 7 lcd screen use 20volts to lightup and sudden high power flow can blow any of the backlight circuit component. iPhone 7 backlight circuit is consist of resistors, capacitors, fuses ics and coils. First component to blow are fuses in the iPhone 7 backlight circuit and these fuses are there for the same reason so that any other component does not damage. If you are an iPhone technician and carrying out iPhone 7 black screen of death repair first components you will be checking are fuses. See below picture of an iPhone 7 backlight fuse is blown.

We find out one of the fuse on iPhone 7 backlight circuit is faulty it was removed and soldered new fuse and backlight come to life again. If you are fixing an iPhone 7 with black screen problem check the below components first.
if all of above fuses are working fine and still there is no display on iPhone 7 than it is backlight ic which is not working. iPhone 7 display driver boost ic is u3 part name is u3703. failure of this ic is also a common fault. This is not DIY repair. Even if you are a technician but if you don’t have micro soldering skills don’t try it is difficult and more over you should have knowledge to read schematic digram otherwise you might end destroying the iPhone.
read further here 
http://www.applefix.co.nz/blog/iphone-7-black-screen-of-death-repair/

Monday, 21 August 2017

iphone bluetooth and wifi not working repair

Even though we have already write a blog  on iPhone bluetooth and wifi not working repair but that was on an older iPhone 4. There are newer iPhone having same problem and most commonly on iPhone 6. The easy fix some of the bloggers mention is to restore the iPhone it doesn’t work when iPhone bluetooth and wifi not working repair is greyed out. Neither replacing iPhone wifi antenna will fix this problem. if iPhone wifi signals are weak or keep disconnecting or wifi only works when you are close to wifi router could be because of faulty wifi antenna or software bug but when the wifi or bluetooth button is greyed out that means wifi and bluetooth ic is faulty and in this case replacing wifi antenna or restoring iPhone will not fix or repair wifi or bluetooth problem. You have to get wifi and bluetooth ic replaced.

iPhone bluetooth and wifi ic not working repair is it easy?

It is definitely is not a DIY repair. Yes iPhone wifi and bluetooth ic replacement is difficult. Iphone 4 and 4s had wifi ic failure problems but in iPhone 5 series wifi and bluetooth ic is quite stable, but iPhone 6 series again wifi ic is not stable the part number for for wifi ic is u5201_f and apple part number is339S0228/339S0231/339S0242. Some of the technicians who does not have skills to replace ic chip tried to heat u5201_f wifi ic but they unaware that this ic is undersell and reflowing or heating wifi ic will cause more damage and board can short and iPhone can go dead. Only successful repair on iPhone wifi ic is to replace it.
read further here
http://www.applefix.co.nz/blog/iphone-bluetooth-and-wifi-not-working-repair-in-hamilton/