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marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 738
Message 1 of 12

ThinkCenter M920q & x Tiny: damaged BIOS, how to initiate BIOS recovery (CMOS jumper, ISO)

After last update of Win 10 after second reboot I saw Lenovo BIOS update screen with strange green percentage progress bar and chinese subtitles. I heard that there is a virus encrypting drives, so I turned off my computer before 100% Smiley Indifferent Now after reboot nothing happens. Only green light on power button, and black screen ( I have two displays connected to HDMI and DisplayPort) this is the only possibilitie for this workstation - no vga port) .

 

I read Hardware Manual and I found procedure to clear cmos:

 

  • Locate the Clear CMOS/Recovery jumper on the system board.
  • If necessary, remove any adapters that impede access to the Clear CMOS/Recovery jumper.
  • Move the jumper from the standard position (pins 1 and 2) to pins 2 and 3

But I don't have any jumper like that I have place where there is subtitle JCMOS1 and three metal dots (HW, CLR, CMOS).

20191207_103708.jpg

There is other jumper with 6 pins namesJP355 and default jumper is on the 5-6 pins.

20191207_103722.jpg

 

1) Is resetting by the coin-battery is equivalent to the above procedure?

2) How I should set the jumper or maybe I should connect this metal dots some how ?

3) Is CMOS resetting is good direction? My target is to recover BIOS of course.

4) I read this post: 

httpss://forumslenovoo.comt55ThinkCentree-A-E-M-S-SeriesM900xx-amp-Tiny-Recover-from-failed-BIOS-upd...

but in my my motherboard jumpers and things looks differently.

Especially differently than here in chapter "Recovering from a BIOS update failure"

httpss://downloadlenovoo.compccbbssthinkcentreepdffm8000m9000_towerhmmmpdff

 

Mod:  edited Subject to add M920q model, and expand problem description

 

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Message 2 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

No, removing the coin battery won't force a BIOS update via a USB drive or USB CD drive, which is what needs to happen (initiated by moving the jumper.)  While the process is similar, your motherboard is probably different to a M900. 

 

I can't tell, since the top photo is too tight in, but is the location of JCMOS1 in location # 1 of the following diagram?  If not, can you post photos of that area.  Thx. 

 

f-m920q recovery jumper.JPGSystem board layout - M920q & M920x

f-m920q recovery jumper 2.JPG

__________________________________________________________________________
I do not work for Lenovo. I do not respond to Private Messages for help, your questions should be posted in the appropriate forum where the information exchange may help others. If I helped you, click the 'Kudos' button, if solved, the 'Accept as Solution'.
marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 677
Message 3 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

f-m920q recovery jumper.JPG

 

Thank you. It looks like numer (1) is jumper dedicated for CMOS althought there are no subtitles near this place. But still default connected pins are 5-6 as you can see on JP35 jumpers. Where did you found this doc? Could you check is there special instruction for that model how to change this jumpers? I have official lenovo service near by my home and I gave them workstation but still Im interested because mayby I can help them.

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Views: 672
Message 4 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

This is from the 'User Guide', on the Lenovo support page for your system.  However, there are no instructions on how to change the jumper to force a BIOS update.   It would be helpful if you could find that out for other owners.  Ty. 

 

__________________________________________________________________________
I do not work for Lenovo. I do not respond to Private Messages for help, your questions should be posted in the appropriate forum where the information exchange may help others. If I helped you, click the 'Kudos' button, if solved, the 'Accept as Solution'.
marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 664
Message 5 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

Yes ofcourse. Im still first stakeholder ;| I will try to ask my lenovo support service when it fix that (posiible in two weeks) but to this moment please leave the question opened. Maybe someone else knows the answer Smiley Indifferent Thanks for help.

marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 644
Message 6 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

First I watched this: https://www.youtube.com/watch?v=eQKVUzjMozE

It helps me to find subtitles which I didn't see before in real view but when I zoom the phote, subtitles are visible:

cmos_clr.JPG

 

So with view on different photo Im shure for 88% that first line is like "SW_CLR_CMOS (2-4)" Im not shure only "R_"
Second line is "ME_D??? (1-3)" probably ME_DIS (1-3).

 

I found here: https://download.lenovo.com/pccbbs/thinkcentre_pdf/ipig_thinkcentre_201702_en.pdf

right procedure for my m920x "Recovering from a BIOS update failure":

 

"4. Move the jumper from the standard position to the maintenance position."

 

Maybe ME_D??? (1-3) stands for MaintenancE ??

 

I found one more thing: https://www.win-raid.com/t4454f16-Lenovo-M-P-SFF-no-post-video-beeps-1.html

" (..)

If anyone has one of these I would advise not to use Lenovo flash from operating system, it is not very reliable. Bootable USB much better..
These boards have the restore jumper position, and you can usually get working with Lenovo bios CD iso.
These boards have ME_DIS jumper, which is very handy.

(..)"

I will try to contact with support service toomorow... and now preparing CD with BIOS image and USB with the same. So maybe I can try this toomorow.

marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 615
Message 7 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

So we tried with Lenovo Support Service employee two procedures:

 

1) "CMOS clear procedure"

Change jumper from 5-6 to 1-3 CLR_CMOS position and nothing happened (no sound signal), back jumper to the default position and still nothing so,

 

2) "Recovering after update BIOS failure" procedure

We changed jumper from 5-6 to 2-4 to ME_DIS position , we connected CD with latest BIOS CD iso dedicated for this model from lenovo. After turn on the computer there was no 2x beep signal ( as the procedure mention) but we heard that cd reader was reading the cd by about 1min and after that, LED the dvd-rw stoped lighting. Procedure mention that after finish copmuter should turn off  but it didnt. So after some minutes we turned off the computer  manually. Jumper back to 5-6 and

 

still nothing hapened Smiley Indifferent

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Message 8 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

During step 2, did you have a monitor connected, was anything displayed? 

__________________________________________________________________________
I do not work for Lenovo. I do not respond to Private Messages for help, your questions should be posted in the appropriate forum where the information exchange may help others. If I helped you, click the 'Kudos' button, if solved, the 'Accept as Solution'.
marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 607
Message 9 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

Yes, I had moniotor connected to DisplayPort ( using this: https://www.lenovo.com/us/en/accessories-and-monitors/cables-and-adapters/adapters/CABLE-VGA-cable/p... ) all the time, and nothing displayed Smiley Indifferent

marcintomasik
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Posts: 14
Registered: ‎12-08-2019
Location: PL
Views: 587
Message 10 of 12

Re: Probably damaged BIOS in Lenovo ThinkCenter M920x Tiny

I went second time to Lenovo Support Service and tried again with position 1-2 of jumper like on the photo from post below:

https://forums.lenovo.com/t5/ThinkCentre-A-E-M-S-Series/M900x-amp-Tiny-Recover-from-failed-BIOS-upda...

For my device m920x the procedure say:

"4. Move the jumper from the standard position to the maintenance position."

But I did not find what is mean maintenace position in any documentation  Smiley Indifferent

But I took a chance and move jumper not like in the description on the motherboard (which is 2-4 CLR_CMOS and 1-3 ME_DIS ) but like on the above photo (1-2). I heard two beeps after second restart. After that I used CD iso image of latest BIOS from LENOVO and it works !!!


So for sure maitenance position is 1-2. The rest of the procedure contains enough information to perform BIOS recovering.

And we're back...

Move delayed but still coming

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