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Making up some leads for the DCPS and would like to know does the MacBook determine what wattage magsafe it is using from...
Meer informatieI don’t know a lot about MacBook circuitry and I don’t advertise their repairs but there is one customer who does send...
Meer informatieAny 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...
Meer informatieI 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...
Meer informatieWould someone be able to tell me the orientation position of U5860 on the 820-00239 logic board. I can only make out a...
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Make sure the dot is positioned as in image. If it is the original NAND it will not need programming.
Meer informatieSiri listens for commands from the top mic. The cars blue tooth head units use their own mic for Siri. Sounds like a top mic problem.
Meer informatieThe iPhone is linked to an iCloud account. I would get a refund or ask the seller to remove the phone from there iCloud account.
Meer informatieIf you want to start repairing phones the first action you would take in trouble shooting is to rule out a parts issue. The easiest way to do this is to install the logic board into a known good housing. If the problem still consists you can move onto the logic board. You will at least need a multimeter, power squid and board view software.
Meer informatieThere will be a component on the backlight circuit that has failed. Before the iPhone X these components are located on the logic board, there is a filter, capacitors, diode, coil and the backlight driver. This repair will require microsoldering.
Meer informatieI don’t think there should be any wires on the 8 plus where you are talking about. The 7 series have two black wires in that location which are the antennas.
Meer informatieYes you can, but fuses are there for a reason.
Meer informatieFrom the info you have given I would replace the battery, 88% health is not that good and I have seen iPhones produce these symptoms at that point. You could also try connecting the device to your PC or Mac, back it up and perform a restore to rule out a software problem. If that doesn’t fix it you will need to replace the battery.
Meer informatieThe iPhone 12 can boot with just the top board but I don’t think the 12 pro and 12 pro max can. Your readings are showing the phone to be booting normally until it detects the bottom layer is not sending any data to the CPU so it is re-booting.
Meer informatie7 milliamps before prompt to boot is a normal reading if you are using a squid.
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Chris Stables
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Microscopic board repairs
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