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menthol
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Last Activity: 02-10-2024, 08:59 AM
Joined: 05-20-2023
Location: kyoto
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  • menthol
    started a topic Lenovo Thinkpad L380 About DMI
    in BIOS Requests ONLY!

    Lenovo Thinkpad L380 About DMI

    Could you please tell me some offset values of the DMI area of the attached file?

    I could not find LENV.
    Is it possible that the LENV characters themselves are encrypted?​...
    See more | Go to post
  • menthol
    replied to dell latitude 5290
    in BIOS Requests ONLY!
    DELL Latitude 5290 LA-F391P rev 2.0 BIOS PLZ

    Hi

    I can find the A00 of the BIOS, but I cannot find A01.
    Please help me

    DELL Latitude 5290
    DDM60 LA-F391P
    Rev 2.0 (A01)
    2018-08-29
    See more | Go to post
    Last edited by menthol; 08-05-2023, 10:52 AM.

    Leave a comment:

  • menthol
    replied to Latitude 5300 not charging.
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Re: Latitude 5300 not charging.

    Hi mon2-san

    Thank you very much.
    Very informative and helpful.

    When measuring the resistance of a MOSFET, at what resistance level should I suspect it is defective?

    Is it necessary to have more than 200-300kΩ between each terminal to determine that it is normal?
    See more | Go to post

    Leave a comment:

  • menthol
    replied to Latitude 5300 not charging.
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Re: Latitude 5300 not charging.

    Hi mon2-san

    Thanks for the reply.

    PU4412
    source (1-2-3) & drain (5-6-7-8) : 0.562MΩ
    source (1-2-3) & gate (4) : 0.602MΩ
    gate (4) & drain (5-6-7-8) : 1.002MΩ

    PU4413
    source (1-2-3) & drain (5-6-7-8) : 5.4kΩ
    source (1-2-3) & gate (4) : 52.8kΩ
    gate (4) & drain (5-6-7-8) : 95.6kΩ

    I think MOSFET seems to be fine.
    See more | Go to post

    Leave a comment:

  • menthol
    replied to Latitude 5300 not charging.
    in Troubleshooting Laptops, Tablets, and Mobile Devices
    Re: Latitude 5300 not charging.

    Hello mon2-san

    Thanks for the reply.

    A1: The adapter is a genuine DELL product.

    A2: I measured the voltage of PR_ID and PR_ID_R. It seems that the battery is doing something wrong.

    　1. Only AC adapter is connected.
    　　PS_ID: 3.291 [V]
    　　PS_ID_R: 3.287 [V].

    　2. Connect AC adapter and battery
    　　PS_ID: 0 [V]
    　　PS_ID_R: 0.295 [V]
    See more | Go to post

    Leave a comment:

  • menthol
    started a topic Latitude 5300 not charging.
    in Troubleshooting Laptops, Tablets, and Mobile Devices

    Latitude 5300 not charging.

    Hi guys

    Please Help me

    I cannot charge my laptop by connecting the AC adapter to it.

    [The following is the situation]

    The laptop is just connected to the AC adapter without booting.

    1. pin 19: ACIN of Charger IC does not go HIGH when connecting the AC adapter with the battery connected to MB. (sheet 44) PR4485 is not mounted.


    2. the reason why ACIN does not go HIGH is because pin 5 of PQ4423 is set to HIGH and pin 3 and pin 4 are set to ON.

    3. When supplying power from the AC adapter,...
    See more | Go to post
    Last edited by Vesko356; 06-25-2023, 08:22 PM. Reason: Attached schematic removed and replaced with link.
  • menthol
    replied to ME Firmware Cleaning Guide
    in BIOS Requests ONLY!
    Re: ME Firmware Cleaning Guide

    Hi guys

    Mentioned in the Win Raid forum

    D4. CSME 11 - 15 & CSTXE 3 - 4
    15. is the "fptw64 -greset" step unnecessary when writing with a ROM writer?
    See more | Go to post

    Leave a comment:

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