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  • Posts: 1
  • Registered: ‎08-23-2020
  • Location: United States of America
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X250 not booting after disabling AMT in BIOS

2020-08-23, 17:35 PM

Hi, my X250 has run like a champ for 4+ years now. Last night the Lenovo Solution Center recommended the Intel ME Components application which I installed. After reviewing the application, I went into the BIOS and disabled AMT. After selecting save and reboot, the system rebooted but it did not show anything on screen. Here is what happens - The power button lights up, the keyboard backlight comes on, the heatsink fan spins up and then the keyboard lights go out in a second following by the heatsink fan shutting down. All through this process I don't see anything, not even a flicker, on the screen. There is no Lenovo Thinkpad logo, no cursor, no error message, absolutely nothing.


P.S. - This model has two batteries apart from the CMOS. I am calling them internal (accessible only after removing back cover) and external (user replaceable).  The CMOS battery is hidden beneath the internal battery but its connector to the motherboard is accessible even without removing the internal battery. It also has a small hole on the back panel which 'resets' the computer or something.


Troubleshooting attempted -

  1. Removed the external battery, used a pin to hold the reset button down for 15 seconds, re-attached external battery, rebooted without power cable connected and then with power cable connected
  2. Removed external battery, unplugged internal battery, unplugged CMOS battery, left for 15 mins and then rebooted after connecting everything back
  3. Removed external battery, unplugged internal battery, unplugged CMOS battery, held down power button for 30 seconds, left everything unplugged overnight and the rebooted after connecting everything back and rebooted with the power cable connected
  4. Removed external battery, unplugged internal battery, unplugged CMOS battery, unplugged HDD (only storage device), connected CMOS back after 5 minutes (left internal battery and external battery unplugged) and rebooting after connecting the power cable only


In all the above cases, the result is the same - power button lights up and stays on, keyboard backlight stays on for a second only, heatsink fank stay on for maybe 3 seconds only. There is absolute nothing on the screen at any point.


Am I up the creek without a paddle?

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