Xiaomi Mi 15 Pro - R15-6050A2940901 - no 19v

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • gurj1979
    Senior Member
    • Dec 2014
    • 186
    • UK

    #1

    Xiaomi Mi 15 Pro - R15-6050A2940901 - no 19v

    Hi folks.
    Ive got this machine, had broken USBC socket, which popped U2600. I replaced both. Got 5v on USBC, but PVBAT is only showing 2.4v, and also missing 5v on L60250 and L60200, 3v and pretty much every other rail.
    KBC is getting 3.3v from somewhere.

    I can't for the life of me figure out what is pulling down PVBAT to 2.4v, and not making USBC 19v. Stuck on 5v.

    Help please.

Related Topics

Collapse

  • rilley
    MacBook Pro 13inch 2017mid (A1706 820-00923-A) - liquid damage - USBC and Display short circuit
    by rilley
    Hello everyone,
    I am new into this, sorry to post it here. I want to make this as a pet hobby project, as this mac is not urgent.

    I have (Macbook Pro 13inch 2017mid) A1706 820-00923-A

    My mac had liquid damage a long time ago, the connector from J8500 is damaged on pin 46 (PP5V_S0_ALSCAM_F), I guess the LCD/display panel is in short circuit, as I saw the connector from the LCD burned as well.

    And the resistor L4004 is literally burned.

    From what I see from the schematics, it does not affect any other rails, only the connection to the display...
    07-10-2024, 01:57 AM
  • drscoot
    usbc connector replacement on mobile
    by drscoot
    I replaced the broken usbc connector on this Ciontek CS50 mobile device. It worked fine afterwards, although it looks like the battery went down quickly and the device got warm at the back (battery section). After putting it in standby for a while it didn't came back anymore?
    The battery is still charging (red led), but no power on.
    I had another look at the usbc connector, it looks like one of the components is melted down (blue marking)? I have a picture of an untouched device and then the repaired device with 2 pictures; what are these components with B1 and PB marking? Are these...
    07-13-2025, 02:37 PM
  • Document Archive
    Xiaomi Mi 9 Lite / Xiaomi Mi CC9 Schematic & Board View
    by Document Archive
    Xiaomi Mi 9 Lite / Xiaomi Mi CC9 Schematic & Board View...
    10-05-2024, 10:59 AM
  • AdrenalinTL
    Macbook Pro A1707 - Dead - Battery 'popped'
    by AdrenalinTL
    Hi Peeps.

    Just a quick question please as I am by no means an Apple fundi at all.

    Can a 'popped' battery cause the Macbook to be completely dead? Client said the battery definitely popped. It doesn't look swelled or anything but it doesn't switch on at all. No lights, no fans, nothing.

    Also, using a 85W original Apple charger. That is working for sure. Does it need more wattage?

    Don't want to go buy a battery for no reason.

    Client is adamant is worked before the battery popped and I can't see any damage what so ever on the board...
    07-18-2024, 09:52 AM
  • nikolayu
    Lenovo ThinkPad X1 Nano Gen 1 not charging on 1 USBC
    by nikolayu
    I have Lenovo ThinkPad X1 Nano Gen 1 which is not charging on 1 usbc port (the one that has mark for charging).
    When i connect usb it switchs to 20v but no current draw (only 0.02a) and orang light is on. In windows it shows that is charging but percentage is dropping.
    Other usbc is charging fine,

    I installed lates bios and firmwares for thunderbolt and battery.

    Could be faulty JHL8040R controller?
    08-31-2024, 11:08 AM
  • Loading...
  • No more items.
Working...