Chris Stables

Making up some leads for the DCPS and would like to know does the MacBook determine what wattage magsafe it is using from...

I don’t know a lot about MacBook circuitry and I don’t advertise their repairs but there is one customer who does send...

Any idea where I could purchase a QFN8 to DIP8 Adapter that will fit a bios chip off the 820 00875 board. The only one I...

I got sent a mac which had the U5860 temp sensor torn off along with all the pads on the board. It would take ages to boot...

Would someone be able to tell me the orientation position of U5860 on the 820-00239 logic board. I can only make out a...

A water damaged iPhone 6 will eventually fail as the corrosion takes hold. In the meantime I would replace the charging dock connector. They are only a couple of dollars and will probably bring your sound back. While you have the phone open I would lightly scrub the logic board with 99% Isopropyl alcohol.

I do not think you can replace these yet as Apple have tied the serial number to the board. Unless they have released an update in there software you will need to take it to an apple store otherwise the camera will not work.

A new battery might fix it, if not it will be your charging dock assembly. If you are going to replace the dock assembly make sure it is a genuine one pulled from another board as some aftermarket ones have faulty or no sensors which makes the phone restart every three or so minutes.

Can Siri hear you? Is your voice memos greyed out? If you have these symptoms it will be the audio IC problem which is prone to the 7 series. This will need to be repaired by a reputable repairer as it will require microsoldering. If you don’t have the above symptoms you could try replacing dock assembly.

You could try a restore using a program called 3Utools. It has an option to retain user’s data and there is a slim chance if you know the passcode and the phone accepts it you might retain your data but this is a slim chance. Other than that there is not much you can do.

Since you have ruled out a parts problem it would point to the logic board. Firstly I would check the pins on the battery connector and make sure none are pushed into the plastic.  I have seen tristar testers fail on the XR when tristar is perfectly fine. The tristar/hydra is next to the CPU on the XR so you would need to be certain it is faulty before replacing. The most common cause for your symptoms on the XR would be faulty coils next to U3300. Replace these coils and it should solve the fake charging issue.

It sounds like a baseband CPU issue and would be too expensive to get repaired if it can at all. You can confirm this by inputting *#06# into the keypad if it doesn’t bring up your IMEI it is most likely baseband.

I think you have completed all the trouble shooting that can be done. It is most likely a baseband CPU or PMU fault. You can confirm this by inputting *#06# into the keypad if it doesn’t bring up your IMEI it is most likely baseband. The baseband CPU cannot be changed as it is linked to the CPU.

On the 6s if you don’t disconnect the battery before connecting the screen your backlight circuit will be electrically damaged. The backlight circuit consists of the connector, filters, capacitors, diodes, coil and the driver IC. One or more of these has failed. No matter which one it will require a reputable repairer to fix the problem as it will require microsoldering.

There is no reason to run a jumper wire. Just replace that resistor and be careful not to nudge the diode above it. The component to the left that is missing is a capacitor and the phone should operate normal without it. The value of the resistor is 33.5% 1/32W MF 01005