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What's DOS?
Posts: 1
Registered: ‎09-20-2019
Location: GB
Views: 110
Message 1 of 2

X1 Yoga 1st Gen



I have a 20FR machine which did an upgrade to BIOS 1.44.


Now, when it reboots, it shows the "Lenovo" splash, but then after a few seconds, flashes F1 and F4.


I can go to the BIOS settings, but if I try and select the Diagnostics, the system just resets.


I've tried clearing the NVRAM by disconnecting the battery and also tried to boot from USB, but same problem.



Fanfold Paper
Posts: 8
Registered: ‎11-09-2017
Location: DE
Views: 100
Message 2 of 2

Re: X1 Yoga 1st Gen

The SSD can be replaced, hte RAM is soldered to the Main board and hard to replace without special knowhow.

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