Recent content by jonbremont

  1. jonbremont

    Question x1 extreme brand new doesn't not power via battery

    Well, I soldered a wire to bypass the first mosfet out of the battery on the motherboard and... works! I believe the first 2 or 3 mosfets at the battery positive are related to over voltage protection or monitoring? I'm not sure what the side-effect is but the laptop seems to work fine now. I...
  2. jonbremont

    Question x1 extreme brand new doesn't not power via battery

    I brought the laptop to the shop I bought if from...they tried things...they sent it to their lenovo supplier who "tried things" but no one could fit it. They said order a new battery. I ordered a new battery same problem when installed. Note: I'm using the original battery now (cycle count...
  3. jonbremont

    Question x1 extreme brand new doesn't not power via battery

    BIOS hadn't updated but just did the update today version 1.29 to v1.30. No difference -- still turns off when AC adapter removed. I wonder if there's an older bios version to try. Eitherway still tbd on hardware/software issue.
  4. jonbremont

    Question x1 extreme brand new doesn't not power via battery

    Greetings! I have an x1 extreme gen 1 4k that I just purchased and open boxed it myself. Warranty expired 1 day ago and can't get it fixed. Laptop runs fine with power cable but if I unplug the AC power the system shuts down immediately. the battery info is displayed in windows 10 and...