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2 Posts

07-20-2021

Spain

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T15 stuck at boot up: "Flashing embedded controller... Please do not power off!"

2021-07-20, 9:22 AM

I started a firmware update, and after the reboot there has been no progress nor any sign of activity for some hours, just the logo and the message "Flashing embedded controller... Please do not power off!"

Any ideas?

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5966 Posts

08-02-2018

Philippines

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Re:T15 stuck at boot up: "Flashing embedded controller... Please do not power off!"

2021-07-20, 11:46 AM


Hello JordiD!


Welcome to community forums

 


Can you provide the MTM of your machine and the current BIOS version running on your device?

Let us know.

 

 

Jwes_Lenovo



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2 Posts

07-20-2021

Spain

3 Signins

15 Page Views

  • Posts: 2
  • Registered: ‎07-20-2021
  • Location: Spain
  • Views: 15
  • Message 3 of 4

Re:T15 stuck at boot up: "Flashing embedded controller... Please do not power off!"

2021-07-20, 13:00 PM

The model is 20W4-0034SP.

As for the bios version, I don't know and I cannot access the bios. The firmware update was triggered yesterday, and was up to date until then.

Thanks!

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5966 Posts

08-02-2018

Philippines

954 Signins

30234 Page Views

  • Posts: 5966
  • Registered: ‎08-02-2018
  • Location: Philippines
  • Views: 30234
  • Message 4 of 4

Re:T15 stuck at boot up: "Flashing embedded controller... Please do not power off!"

2021-07-20, 15:52 PM

You can  try using the bootable CD method instead of installing the firmware while online as suggested by Goretsky on this similar discussion; https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile-Workstations/P53-Thinkpad-not-starting-after-blocked-firmware-update-Esc-F1-F4-leds-blink/m-p/4582127?page=1#4583098

 

You can get it here; https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t15-gen-2-type-20w4-20w5/downloads/driver-list/component?name=BIOS%2FUEFI

 

 


Jwes_Lenovo



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