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December 7th, 2025 13:56
Pro 16 PC16250, very long boot time
Hi,
I have a problem with my new Dell Pro 16 PC16250 notebook. It takes Windows 11 very long time to restart or cold boot - about 2 minutes. My BIOS version is 1.9.0. This 1.9.0 version is not available on the support website anymore. The latest available version is 1.6.0. I am unable to do a BIOS downgrade to that version. Please provide any information about the issue.
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LukaszL
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December 27th, 2025 19:40
After updating the BIOS to version 1.10.2 the boot time dropped to 22 seconds, so the topic can be marked as resolved.
DELL-ChrisM2
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December 7th, 2025 14:49
Dell GHN (Get Help Now) chat technical support must verify the ownership and warranty status. Click the blue "Get Help Now" on the right to start a private live chat session. Share the private Service Tag with them. This will in turn generate a unique support case for your unique Service Tag.
* Turn the Pro 16 PC16250 off
* Disconnect EVERY peripheral device from the right and left side of the Pro 16 PC16250 leaving ONLY the provided power adapter connecting to the left side power port
* Tunr the Pro 16 PC16250 on. Does it still have a long boot time?
LukaszL
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December 7th, 2025 16:02
Tried disconnecting everything but the power adapter - no change. I have timed the boot - it took 1 minute and 18 seconds to boot to logon screen from cold boot (reboot or power off with SHIFT pressed).
(edited)
LukaszL
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December 7th, 2025 16:54
Tried a BIOS downgrade to the 1.6.0 version available through Dell Support website with no luck:
The peculiar thing is, the 1.9.0 version nor the 1.8.0 (installed by Windows Update) is no longer available on the Dell Support website - no trace of it ever existing
user_e445e4
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December 12th, 2025 15:20
Same "slow startup problem" here too!
user_e445e4
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December 13th, 2025 14:44
Also, when Pro 16 PC16250 is connected to SD25TB4 dock, we cannot get picture to external monitors until we open laptops lid :(
(edited)
dk_tn
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December 22nd, 2025 16:44
@user_e445e4 Same here! Please see the following thread: https://www.dell.com/community/en/conversations/linux-general/bios-180-bug-pro-max-16-mc16250-tb4-dock-not-detected-at-cold-boot-confirmed-by-kernel-maintainer/6904cba1f21e1a5eb12b4f29