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iphone 7 plus restarting rebooting fix u4001 ic replacement – AppleFix Hamilton New Zealand

Unexpected restarting can be caused by the software, content, or hardware. However, it’s hard to directly tell which one is the culprit. If y have already tried doing complete reset through iTunes and you have failed than most probably it is a hardware issue.  In terms of hardware problem, I’m afraid there is nothing you can do about it. It might be due to a damaged logicboard. In this respect, you might have to take it to a well qualified apple repair store like applefix hamilton at 125 ward street hamilton New Zealand. If you live out of hamilton you can mail in your device find the mail in instructions here

For this particular iPhone 7 plus we find it is a hardware problem. The tristar charging ic u4001 not showing any volt on 5 volts line on c4006 capacitor and no power on c4004 1.8 volt line. Even though from our experience on iPhone 6 6s if tristar ic has failed you can still boot the iPhone with a charged battery. But on iPhone 7 and 7 plus faulty tristar ic will make it restart.

iPhone 7 plus restarting rebooting fix u4001 ic replacement . Can you do it? Is it easy fix?

No you have to leave it to experts. AppleFix Hamilton has fully equipped apple repair workshop on sitewatch full youtube video here 

https://www.youtube.com/watch?v=wL_ZfyzzJa4

Macbook air keyboard trackpad not working u2600 ic replacement AppleFix New Zealand

Keyboard & trackpad suddenly stopped working your local IT replaced keyboard & trackpad but still it is not working. MacBook air keyboard trackpad not working u2600 ic replacement in New Zealand. MacBook air keyboard and trackpad are pretty rigid parts. They stopped working usually if you have liquid spill on it. Replacing keyboard and trackpad is quite easy repair and most of the computer repair shop can do it.

But when it comes to MacBook air keyboard and trackpad integrated circuit IC repair it becomes very skilled repair and most of computer repair shop send it away to more skilled repair shop like AppleFix hamilton at 125 ward street Hamilton New Zealand.

U2600 is not the only ic which controls the keyboard and trackpad but most common one to fails. For technicians reading this article do not just takeout this ic if keyboard and trackpad not working even after replacing with new one. There is a procedure to check the ic. See below picture the capacitors which are in connected to u2600 ic.

These all capacitors in red square are in on 3.3 volt line check these caps and resistors. read through digram or board view. Check with multimeter if you all the information you will find on the schematic diagram. if you find it hard how to work around you are suggested to take one of our logic board repair course.

On this particular MacBook logic board u2600 failed. We usually keep donor boards where we can remove the ic and solder on which we repairing. Removing ic also needed to be learnt or you might endup pulling the pads.

Once ic is removed use flux and solder braid to remove any left over solder and clean it with alcohol

There are different types of IC read a good article on integrated circuit here. This type of ic we recomend to do underneath preheating to have good strong joints.

After soldering new ic you have to perform same tests again. Check the volts lines. Which you should have right output. MacBook keyboard trackpad not working u2600 ic replacement is done at applefix in store repair lab.

If you have similar any hardware or software faults on your MacBook pro or MacBook air bring it to applefix. Find our location here. if you live out of Hamilton New Zealand mail your device. Or call +6478394188.