Chris Stables

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...

First I would suggest installing a new battery. If iTunes still gives you errors while trying to update I don’t think there is much more you can do except replace the dock connector and charging cable. If you had a faulty battery for some time it could have filled the space where error logs are stored that is why it is telling you to do a restore. It will not update when the error log section is full.

An iPhone XS that boots but restarts every few minutes is most likely caused by a faulty battery or dock connector.

On the IPhone 6s plus there should be three flex cables coming of the screen. ·         Front camera assembly ·         Digitiser ·         Home button. On the 6 plus there are four flex cables coming from the screen.

The phone is not recognised by the computer because of the USB restriction. You will need to put the phone into DFU or recovery mode and do a restore. This might be difficult if you say the volume buttons are not working.

I don’t think there is much more you can do without microsoldering equipment and knowledge, as the next step would require the diode readings of the dock FPC.

If you had replaced your charge port and battery because your phone was not charging properly and you are sure the replacements are installed and connected properly plus you have tried a different charging lead the next thing to look at would be a faulty charging IC. The most common one to fail is the Tristar IC.

As I have never seen this error before, I would try the following. ·         I would try a restore on another PC with another known good certified cable and battery with latest iTunes installed. ·         Remove the logic board from the housing and just connect screen, dock and battery. ·         If it still gives the error check the log and try and determine what it is doing when the error occurs. Have you tried restoring with 3uTools? It still will not restore but you can see what action it is doing when it fails. In my experience if it fails at 80% it usually means a Baseband problem but could be different with iTunes.

You will need to put your phone into recovery mode and update with iTunes. Make sure you have the latest version. Remember you need to update not restore or you will lose your data.

You should always rule out parts first. So the first thing to replace in your case would be the screen.

Without seeing your soldering technique it would be hard for me to tell you where to look. You have said that this has happened about 5 times before which makes me think you should change your audio IC procedure. Are you reballing the IC’s? ·         If you are tilt the chip up and make sure all the balls are even. ·         Are you using solder wick on the IC,s? ·         Have the chips got small nicks in them from tweezers. First thing I would check is the VDD boost line. Are you getting any current draw before prompt to boot? How many jumpers are you running? Have you checked D12 and G12 pads it might pay to run a jumper between those. Erratic battery percentage would point to BATT_SWI line although I have seen a partial short on VDD_BOOST cause this problem.