08-20-2015 12:24 PM
I want to update the BIOS of my Yoga 500-15IBD and downloaded the latest version from Lenovo support site.
Last BIOS version comes with a txt file where I can read:
Support models S41-70, U41-70,
Flex 3-1570, Yoga 500-15IBD, Yoga 500-15IHW,
Flex 3-1470, Yoga 500-14IBD, Yoga 500-14IHW
But when I execute the exe file (bdcn60ww.exe), I get:
I am a bit confused... Is this BIOS really for my Yoga 500-15IBD? Is there any risk if I try to install it anyway?
09-15-2015 11:05 AM
I do this update because i seen my product in this page (https://download.lenovo.com/consumer/mobiles/bdcn61ww.txt) but it's not a good idea. Now my computer boot is much slower and i don't know the how-to to downgrade.
----------------------------------------------------------------------------------------------- Updated Date 2015/08/18 Software name BDCN61WW Support models S41-70, U41-70, Flex 3-1570, Yoga 500-15IBD, Yoga 500-15IHW, Flex 3-1470, Yoga 500-14IBD, Yoga 500-14IHW Operating Systems Microsoft Windows 10 32/64-bit Microsoft Windows 8.1 32/64-bit Microsoft Windows 8 32/64-bit Microsoft Windows 7 32/64-bit Note: Refer to marketing materials to find out what computer models support which Operating Systems. Version 61
09-17-2015 05:40 AM - edited 09-17-2015 05:40 AM
I also asked my question to Lenovo Support by email, and this is the answer I got (in French then translated):
Notre maison mère nous confirme que dès lors que le produit est noté compatible dans le fichier readme.txt, vous pouvez tenter d'appliquer la mise à jour.
Our parent company confirms that when a product is declared as compatible in the readme.txt file, then you can try to apply the update.
Well, "you can try"... It seems to be I would better not!
12-18-2015 12:00 PM
Hi, well my system was slow and i tried eveything apart from clean install of os so i tried the bios update it say the same thing it does not list all the name of the brand of laptop on the update message screen i guess cos its too long to write in the message box.
Anyway things seem to be a bit better, i find more i use the laptop more it gets faster, probably cos of the cache building - if have any issues of slowdown in future, i will do clean insteall of os - that's my last option as i have already upgraded to max ram capacity.
To go back to your old bios when you have less problems, you just need to go back a version number and update it again, good luck!
09-17-2016 02:53 AM - edited 09-17-2016 07:14 PM
So what is the best bios?
I found lowest version for my CPU 5020u is
The last 2 update 69 and 71 contain bugs or intentionally modified ACPI so autorotate sensor not work under linux:
Ubuntu Gnome 16.04
Android x86 6.0-r1 and derivatives
09-27-2016 06:20 AM
Me to installed BDCN71WW today with no errors reported and now my laptop is too slow to use, I tried rolling back to 63 but the damage appears to be done as it remains slow.
Of course i have contacted Lenovo via the live chat but they have only offered the usual clean temporary files etc which have no impact only to further waste my time.
Currently doing a memory check and then rolling back my windows (as instructed by Lenovo) but i fear the machine is ruined by a Lenovo Update