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:
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.
The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog
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.