Component ID for Ipad Pro 12.9 2nd Gen A1671 (wifi)

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • srosefx
    New Member
    • Oct 2025
    • 2
    • new zealand

    #1

    Component ID for Ipad Pro 12.9 2nd Gen A1671 (wifi)

    Hi
    Ive run into some issues identifying components near the Tristar chip. i have the schematic layout (no component specs)
    Could someone help me identify components and specs please.
    I would like to know what the bird seed is surrounding the tristar chip.
    this area is bare and i need to populate this.
    THanks
    Simon
    p.s if someone could direct me to a schematic with those components listed?

Related Topics

Collapse

  • Aimbit
    Apple iPad Air 2 (A1566) - Seems to be power cycling, no display, new battery/Tristar
    by Aimbit
    Using an ammeter, original battery was only taking 90mA or so... then down to 0, up to 90mA, down to 0, etc, in a repeatable pattern. This iPad was very old, so first thing I did was swap the battery for a good one, and it came pre-charged. The old battery had negligible voltage.

    Now the iPad go up to about 1.5-1.6amps charge, then it drops to 0 after a few seconds... rinse/repeat as before. I tried changing the Tristar chip to see if that would help (and also my first real BGA chip!) but it seems to make no difference. Where should I look next?

    I should poke around the...
    06-29-2024, 09:51 PM
  • GeirAndersen
    iPad .pcb file collection
    by GeirAndersen
    I tried searching the forum for whether this has been uploaded already, but couldn't find them (as a collection).
    Here's a dump of a bunch of iPads, I've split into 2 archives to get under file limit

    IPAD COLLECTION 1
    +---iPad mini1 820-3400(A1432) 820-3243(A1454?A1455)
    +---iPad mini2 820-3683(A1489) 820-3684(A1490?A1491)
    +---iPad mini3 820-00008(A1599) 820-00002(A1600)
    +---iPad mini4 820-00180(A1538) 820-00177(A1550)
    +---iPad mini5 820-01591(A2133) 820-01495(A2124?A2125?A2126)
    +---iPad Pro 12.9-4-820-01797(A2229) 820-01798(A2069?A2232?A2233)...
    12-09-2024, 09:28 AM
  • Pasglop
    iPad A1671
    by Pasglop
    Hello I need the diagram and the boardview of the iPad A1671, following a bad manipulation on my part I lost the backlight. Thank you
    12-29-2024, 02:57 AM
  • KappaDev
    iPad Pro 12.9 2nd Gen A1671 - 1mA No Power, No Charge
    by KappaDev
    Hi all,

    I have a 2nd generation iPad Pro 12.9" Model number A1671. I don't usually work on these, but I suppose today is the day I start. Apologies for any ignorance on tablet matters. On Type-C to USB amp meter, showing 5v @ 1mA
    (0.005W) then instantly to 0mA back and forth. Power draw is the same with and without screen and with and without battery connected. Of course, not enough current for anything to show on thermal camera.

    I can't find any boardview and I'm not certain it even exists. Probing coils on top side of board reveals no voltage present...
    04-05-2023, 01:59 PM
  • grimacelord
    Apple iPad Pro 3rd Generation 12.9" (A1876) No Power/Charge When Screen Is Connected
    by grimacelord
    Hello.

    Working on an Apple iPad Pro 3rd Generation 12.9" that has a weird issue. When the display is NOT connected, the iPad will charge and power on normally. I know it's on because I can hear notification sounds and the charging notification sound.

    If I connect a brand new display to the logic board, the iPad will not turn on at all. When I connect the iPad to an 18W wall charger and a USB-C ammeter, I can see that the iPad is attempting to charge, but constantly "resets" after just a moment or two.

    For example, when I connect the iPad to...
    04-15-2022, 11:06 AM
  • Loading...
  • No more items.
Working...