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**BDMaster** · 09-21-2015, 08:32 AM

Go into Bios Setup Utility !
How do You Set your Option into your Bios ?
Let me see some Pics please use your Camera or Phone and make
some Screenshots of your laptop and Bios with Menu Tabs like here :

http://booleestreet.xii.jp/wp-content/up...C03405.jpg

ruthan · (This post was last modified: 09-21-2015, 06:36 PM by ruthan.)

Well, i know how to get into bios, building computer more 20 years.. but you wrote:

To Downgrade then Boot your Laptop in Bios Maintenance (may be You have to use NOVO Button)
I haven't any Lenovo laptop so I son't know perfect It (just experinces by users and knowlwgements)
then Set to ENABLE RollBack option and save Settings !

But i dont know what is bios maintenance, you mean just normal bios? And what you means by rollback.. i dont have any such option in my Bios, i have only usual options in Bios. Do you mean boot in legacy not UEFI mode or something like that.. possilibility to disable Bios flash i saw as option in bios, only on some Intel desktop boards..

**BDMaster** · 09-22-2015, 03:46 AM

Please upload here all Bios Menu Tabs Screenshots (pictures = photos) so i will look by
myself them and let You know !
I can see only into Bios Code and there is this option then I have to see if It is visible or not !
If not visible then I will indicate a way to activate using FalseClock Method !
Let me know
Regards

ruthan · 09-22-2015, 10:03 AM

Hello,
you were right, there is Secure Rollback Prevention option, under UEFI Bios update option.
https://dl.dropboxusercontent.com/u/2741...ptions.JPG

I already had it disabled from the past, so my previous Bios uploads should be ok.

**BDMaster** · 09-22-2015, 11:07 AM

Reupload the v.2.52 here result file please !
Regards

ruthan · (This post was last modified: 09-23-2015, 03:03 PM by ruthan.)

Link is still same as above:
https://dl.dropboxusercontent.com/u/2741044/results.rar

But i got, some red lines during process and bios file is only 4MB - and i sure that bios had right setting, i tried it now, same result.
- other rom backup through FTP -has 12MB and was created ok - link is also above.

ruthan · (This post was last modified: 09-23-2015, 03:54 PM by ruthan.)

Sorry, i maybe misunderstod, but i tried to update Bios through 2.52 linked lenovo utility, but i got - message that Bios dont match this system and couldnt be installed, so i cant upload to 2.52 bios here, should i try it download from Freedos USB flash, with $0AH4000.FL1 file from 2.52 installer folder, or something else?
Im sure that rollback is enabled in Bios.

**BDMaster** · 09-23-2015, 04:00 PM

I am sorry Sad

!
I think You have to get the Tools (SPI PGM + Clip) to make this job !
It's easy and are cheapers so look here :

https://www.bios-mods.com/forum/Thread-R...val?page=3

If You will get Them I will help You to flash the Bios Mod following you into any
step and gettin all support !
let me know
Regards

ruthan · (This post was last modified: 09-23-2015, 04:50 PM by ruthan.)

Hmm, Hardware way, if there is not Software way, im not interested, will buy whitelisted modem instead.

I lost patience, i was prepared to brick this Lenovo crapp, so i have tried moment before use flash utlity here for 2.52 with Lenovo official 2.52 bios, but i got.. message unable to remove write protection or something like that.. So as you wrote there isnt probably way..

**BDMaster** · 09-24-2015, 02:52 AM

We have got free and full unlocked a lot of MoBos wher is more easy by Tool SW and
more hard using Tools HW so SPI PGM and Clip !
You can find many Tutorials and Guides here just googling Wink

Reagrds

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