Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
[REQUEST] HP Pavilion G42-272BR Whitelis...
Last Post: eepromm
Today 06:14 PM
» Replies: 1
» Views: 135
[REQUEST] Bios for packard bell tj65 wit...
Last Post: THECAIDA
Today 03:49 PM
» Replies: 2
» Views: 54
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: Dudu2002
Today 02:47 PM
» Replies: 476
» Views: 167640
[REQUEST] Lenovo Thinkpad X230(i) (G2ETx...
Last Post: Dudu2002
Today 02:46 PM
» Replies: 1089
» Views: 449013
[REQUEST] Lenovo G50-70 (9ACNxxWW) White...
Last Post: tarikyeter
Today 02:44 PM
» Replies: 236
» Views: 89000
[REQUEST] Remove whitelist in a Panasoni...
Last Post: coco62
Today 11:20 AM
» Replies: 2
» Views: 1570
Lenovo ThinkPad SL510 Whitelist Removal....
Last Post: deepTeNk
Yesterday 03:32 PM
» Replies: 5
» Views: 6364
[REQUEST] Acer Aspire 5738(G,Z): CPU Upg...
Last Post: DeathBringer
11-21-2024 03:44 PM
» Replies: 49
» Views: 32967
[REQUEST] HP Mini 110-4100 BIOS Unlock
Last Post: DSI INF
11-21-2024 09:24 AM
» Replies: 7
» Views: 276
[REQUEST] Lenovo IdeaPad U310 & U410 (65...
Last Post: Dudu2002
11-21-2024 03:11 AM
» Replies: 1780
» Views: 496577
Lenovo ThinkCentre M715q 2nd Gen & AMD R...
Last Post: Elmurley
11-20-2024 09:37 PM
» Replies: 2
» Views: 1306
[REQUEST] Lenovo Y50-70 (9ECNxxWW) White...
Last Post: SWZSSR
11-20-2024 09:34 PM
» Replies: 1775
» Views: 555028
[REQUEST] Lenovo Thinkpad X240 (GIETxxWW...
Last Post: Dudu2002
11-20-2024 04:58 PM
» Replies: 337
» Views: 144124
Unlock bios insyde
Last Post: Matox3140
11-19-2024 03:40 PM
» Replies: 0
» Views: 251
Whitelist WIFI card removal Lenovo Yoga ...
Last Post: Dudu2002
11-19-2024 12:58 PM
» Replies: 1
» Views: 244
[REQUEST] H310 MSI Gaming Infinite S (MS...
Last Post: awittyusername
11-19-2024 09:21 AM
» Replies: 10
» Views: 147
[REQUEST] Gigabyte GA-B85M-HD3 Rev 2.0 u...
Last Post: Maduli
11-19-2024 02:22 AM
» Replies: 0
» Views: 192
[REQUEST] Lenovo Ideapad 330-15ICH BIOS ...
Last Post: Dudu2002
11-18-2024 01:25 PM
» Replies: 8
» Views: 1910
[REQUEST] Lenovo ThinkPad Edge E330 (H3E...
Last Post: Dudu2002
11-18-2024 01:23 PM
» Replies: 640
» Views: 221746
[Request] Unlocked Bios for Asus TUF FX5...
Last Post: FlT4ever
11-18-2024 01:05 PM
» Replies: 1
» Views: 433

Lenovo L540 Recovery
#1
Hey,
i have a Lenovo L540 with a bad Bios. First it just showed the Lenovo Logo and a Time Error. "real time clock error". And i was not able to enter the Bios.
I took a Dump with a CH341A Programmer and tried to flash an other dump from the Internet. Now the Notebook powers on immediately after plugging in the power cord. The fan rotates and the screen is black!

What can i do?


I added the dump i took before i tried to reflash the chip and the File from the Lenovo Homepage.

i hope you can help me
best regards
Mawa


Attached Files
.bin   dump1l540.bin (Size: 8 MB / Downloads: 8)
find
quote
#2
Please, i need any idea hwo i can recover the motherboard!
Could anyone tell me how to get a working bios memory?

Kind regards
Manuel
find
quote
#3
Hi~~
Here are two dump bios you can try ,and if you confirm it is a bios issue ,maybe you can consider to replace a new chip to test.
http://www.4file.net/cya514saf1fx/l540.rar.html

find
quote
#4
Hey,
thank you a lot for answering!

I tried both dumps. both do not work.

If i flash the chip and plug the power cord in, the power button flashes 2 times and the fan starts to rotate. Also i can hear some silent noise from the speakers. I can turn the laptop off by long pressing the power button, but it turns itself on a short while later.
I tried to use a VGA Monitor but that does not start either.
Without a bios chip the device does not turn on at all.
If i flash 00 or FF to the entire memory, the Laptop also does not start.

I tried it with the original chip and with a new one! Same behaviour. (i soldered a adapter for my clamp to the footprint to easy plug in and unplug the chip...)

Kind regards Manuel
find
quote
#5
Another idea ,maybe ec is need write ,too.
Or ec chip damage??

find
quote
#6
Where can i find the ec ? I think i can not easyly programm tis chip. Is the ec a normal microcontroller?

How can i check if the ec is faulty?
find
quote
#7
Hey,
i bought a used Board (inclusive i5) for 30€...
is it possible to modify the whitelist?
otherwise the thread can be closed.

Thanks for your help!
Mawa
find
quote
#8
(06-11-2019, 05:00 PM)Mawa1105 Wrote: Hey,
i bought a used Board (inclusive i5) for 30€...
is it possible to modify the whitelist?

Thanks for your help!
Mawa
Hi
yes...but need your bios dump
P.S. Your bios is rewrite protected...you need SPI-programmer+SOIC8 clip only
find
quote


Forum Jump:


Users browsing this thread: 6 Guest(s)