07-21-2016 12:15 PM - edited 07-21-2016 01:53 PM
In preparation for Win 10 key I updated the BIOS on an E520 using the Lenovo Service Bridge. Os is Win 7 64-bit. LSB showed old BIOS was backed up.
Old bios LENOVO 8HET30WW(1.12)
New bios LENOVO 8HET44WW(1.26)
Now bootup and windows start up are painfully slow. Further there is a black screen in the middle of the wake up process.
How can I undo the BIOS update to revert back to Old bios LENOVO 8HET30WW(1.12)?
Or can anything be tweaked to improve the bootup time?
Solved! Go to Solution.
07-21-2016 04:23 PM
Hello and welcome,
The older versions of the BIOS are located at the bottom of the download page:
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07-22-2016 06:59 AM - edited 07-22-2016 08:40 AM
Thanks! Noticed there is not a package for 8HET30WW. Is the next best thing to pick a near version by package number or by 8HETxxWW number?
07-22-2016 10:57 PM - edited 07-23-2016 10:58 AM
E520 isn't Windows 10 compatible.
p.s I am running LENOVO 8HET44WW(1.26) on my E520 with zero problems since release.