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質問
Making up some leads for the DCPS and would like to know does the MacBook determine what wattage magsafe it is using from...
続きを読むI don’t know a lot about MacBook circuitry and I don’t advertise their repairs but there is one customer who does send...
続きを読む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...
続きを読む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...
続きを読むWould someone be able to tell me the orientation position of U5860 on the 820-00239 logic board. I can only make out a...
続きを読む回答
Make sure the dot is positioned as in image. If it is the original NAND it will not need programming.
続きを読むSiri 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.
続きを読むThe iPhone is linked to an iCloud account. I would get a refund or ask the seller to remove the phone from there iCloud account.
続きを読むIf 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.
続きを読むThere 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.
続きを読むI 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.
続きを読むYes you can, but fuses are there for a reason.
続きを読むFrom 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.
続きを読むThe 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.
続きを読む7 milliamps before prompt to boot is a normal reading if you are using a squid.
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Chris Stables
@imicrosoldering
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メンバー登録日 04/14/19
Microscopic board repairs
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