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...

There is no easy solution for this. If you have ruled out parts it will be a faulty component on the logic board and you will need some experience and the right equipment to diagnose the fault. If you can, post the current draw on VDD_Main before prompt to boot. You can do this by connecting a squid or an iPower pro to a DCPS.

It will defiantly be a logic board problem since you have ruled out parts. If the customer is wanting there data it would be best to outsource it to a professional. If you are in the states I can recommend STS Telecom in Florida or IPad rehab in New York.

You should replace the battery to begin with. If it is still acting the same let us know.

I am not sure why touch isn’t working but if it is aftermarket housing I would replace all the parts from the old one to the one you are using, especially the dock connector.

The most common reason a 6s over heats is a faulty Wi-Fi chip. You should be able to feel where the heat is coming from. The red circle is where the Wi-Fi chip is located and would be a costly repair.

You have nudged or knocked of the component I have shown. This often happens during a battery replacement if you don’t know the components are there. This circuit supplies the battery info to the charging IC if it is not getting any information it will boot-loop.

Just disconnect the battery connector. It is completely safe to do so and you will have to disconnect it anyway if you remove the screen.

This doesn’t look good Zach. The first thing you will need to do is check if 5V and 1V8 is getting to the connector, you will need the screen connected for this. Second you will need to diode the connector paying special attention to ·         90_MIPI_AP_TO_DISPLAY_DATA0_CONN_P ·         90_MIPI_AP_TO_DISPLAY_DATA0_CONN_N ·         90_MIPI_AP_TO_DISPLAY_DATA1_CONN_P ·         90_MIPI_AP_TO_DISPLAY_DATA1_CONN_N You will need to compare these readings with a known good board. Without seeing how the phone is behaving it is difficult to diagnose over the internet. You could try clamping the CPU if you cannot find any irregularities with the connector circuits.

You have just started learning so before you go any further do some research and let us know why the component you have circled cannot have a path to ground and therefore could not be the problem unless pin 5 on the connector had an open line. If you don’t want to learn and just want a please bro solution let us know but there is no fun in that and you will not learn anything. Plus that line has nothing to do with backlight.

Remove the shield bracket and make sure the connector is seated properly. If you have a multimeter check the pin in red it should be 0.53 with red probe on ground, also check the corresponding pin on the flex cable, it should go to ground when the power button is pressed. If you haven’t got a multimeter and the connectors look fine I would replace the power button flex assembly.