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  1. M

    MacBook Air A2337 after standby trackpad and keyboard don't work

    Battery is charging and machine works fine without battery. The issue also appears when screen goes on sleep. While diagnosing I realised is missing the PP5V_S2SW_IPD when issue is there. But PP5V_S2 is always there. Can be LT403 or UC840?
  2. M

    MacBook Air A2337 after standby trackpad and keyboard don't work

    With the problem going on IPD_LID_OPEN_1V8 = 1.781V
  3. M

    MacBook Air A2337 after standby trackpad and keyboard don't work

    Hello guys, There is a similar post on the forum with the same issue but not complete. I tried to reflow all the components around the UT330 but the issue is not fixed. After an SMC reset it works again till the next standby. Since I have 3 MacBooks with the same issue, I wish to understand...
  4. M

    Macbook A2442 Stuck at 5V

    Hello guys, I have an A2442 MacBook that randomly gets stuck at 5V and does not boot of course. If I unplug the battery it boots fine. Than I plug the battery back and also works fine till a point where it gets randomly stuck at 5V again. Sometimes after 1 week, others after 1 months. What...
  5. M

    A1707 Speakers issue

    no at this point. i am a bit lost. how can I check what is not working?
  6. M

    A1707 Speakers issue

    Headphones sound is correct? yes C6450 and C6500 i repleced just in case, no differences. replaced u6500 no differences. still audio goes lower after 20-30 seconds on both the speakers.
  7. M

    A1707 Speakers issue

    Hello, I have an 820-00281 board with strage audio issue. The right speaker came I for replacement because of randomly loosing the tweet tones. Replaced with new one and is better but still sounds distorted. I replaced U6550 and is almost perfect but still has same distortion. Now after 1...
  8. M

    820-00850 with PP3V3_G3H shorted.

    the short appears also after having the board on for 15s DFU restore fails.
  9. M

    820-00850 with PP3V3_G3H shorted.

    820-00850 board with 65Ω to ground on PP3V3_G3H. With plugged-in charger, I get 3.3V on PP3V3_G3H and 20V. Sometimes the short disappear and as soon I give power and remove it the short is back. When I inject 1-3V into PP3V3_G3H, I can not see any parts that gets even warm and takes...
  10. M

    820-00840 data line issue

    i relaced 3 times the redriver and 2 times the cd3215 without success. Looks like after NVRAM is able to read the external drive without succeeding the boot because gives a lock symbol. What should I do?
  11. M

    820-00840 data line issue

    So machine works, just one port doesn't have USB communication? YES The charger works connected to that port? YES I replaced the CD3215 and exactly same issue there. What is the same redeliver chip? usb c port looks good.
  12. M

    820-00840 data line issue

    i have an 820-00840 with only the upper usb port, both sides, doesn't read the data line. So, The problem persists on both port, in both connection ways? NO Do you get 5V at external USB device? No Visual inspection doesn't show anything obvious. Is this a cd3215 issue?
  13. M

    820 02020 usb data line not working

    i have an 820-00840 with only the upper usb port, both sides, doesn't read the data line. So, The problem persists on both port, in both connection ways? NO Do you get 5V at external USB device? No Is this a cd3215 issue too?
  14. M

    820 02020 usb data line not working

    Did fix the issue replacing CD3217. In most of the model that chip is the issue right? because I have a A1708 with that problem too.
  15. M

    820 02020 usb data line not working

    The problem persists on both port, in both connection ways? Yes Do you get 5V at external USB device? No
  16. M

    820 02020 usb data line not working

    hello guys, I have an 820-02020 board with a little bit of water damage. The MacBook I got was booting but without backlight. I replaced UC300 because was missing P5VS2_BST for powering the backlight driver and that issues is fixed. The MacBook is now working and charging. The only...
  17. M

    A1990 Speaker issue

    one side of R6481 was not well soldered. Fixed the issue. Thanks a lot
  18. M

    A1990 Speaker issue

    it is better but not perfect what else can I try?
  19. M

    A1990 Speaker issue

    it comes from the woofer because when I removed the U6400 and tested there was no buzz sound going on.
  20. M

    Macbook A2141 macOS Ventura issue

    I already tried, let's download the system and as long goes on the black screen for installing, it reboots, and never continues the install. Is there a way to install from apple configurator the OS?
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