Forum RSS Feed Follow @ Twitter Follow On Facebook

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

Username:


Password:





[-]
Latest Threads
Lenovo Yoga Pro 7 14ASP9 Bios Unlock
Last Post: Dudu2002
Today 03:02 AM
» Replies: 3
» Views: 147
[RESOLVED] Help! BIOS for Asus GL503VS R...
Last Post: AmosNZ
Today 12:09 AM
» Replies: 5
» Views: 2923
[REQUEST] Acer Predator Helios 500 PH517...
Last Post: TeckToe
Yesterday 11:29 PM
» Replies: 4
» Views: 1417
Gigabyte G6X 9MG insydeH2O IOS Unlock
Last Post: Zzhheennyyaa
Yesterday 04:37 PM
» Replies: 2
» Views: 580
[SOLVED] Lenovo IdeaPad 510-15ISK - BIOS...
Last Post: outsydeh2o
Yesterday 09:39 AM
» Replies: 1
» Views: 181
i7 2860QM how to raise power limit?
Last Post: mariukonie
Yesterday 04:17 AM
» Replies: 9
» Views: 341
(new to forums) searching for aid/direct...
Last Post: adorable_yangire
Yesterday 12:11 AM
» Replies: 0
» Views: 125
[SOLVED] Change Serial Number, UUID, Mac...
Last Post: dsdn1
07-08-2025 07:55 PM
» Replies: 10
» Views: 16808
[REQUEST] Lenovo G50-45 BIOS Unlock
Last Post: szakiz
07-08-2025 05:36 PM
» Replies: 49
» Views: 53340
Acer Aspire 5920G - Requesting Modded BI...
Last Post: EbrahimSiami
07-08-2025 12:29 PM
» Replies: 0
» Views: 150
[REQUEST] Lenovo Yoga 7 Pro 82Y7 unlock
Last Post: Dudu2002
07-08-2025 07:13 AM
» Replies: 1
» Views: 214
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: Dudu2002
07-08-2025 07:12 AM
» Replies: 491
» Views: 217519
Lenovo Y550 BIOS Unlocking (Advanced Men...
Last Post: kentsergeo
07-08-2025 12:15 AM
» Replies: 5
» Views: 1113
[REQUEST] Acer Aspire 8930(G) BIOS Unloc...
Last Post: Ilias manolopoulos
07-07-2025 01:52 PM
» Replies: 58
» Views: 43565
ASUS M11AD > Haswell Refresh
Last Post: JCY1962
07-07-2025 12:40 PM
» Replies: 22
» Views: 7728
overclocking msi b150 gaming m3
Last Post: J1419
07-06-2025 05:51 PM
» Replies: 0
» Views: 256
Asus K72jr repair
Last Post: Moddo73@PROXIMUS
07-06-2025 02:08 PM
» Replies: 0
» Views: 230
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: Dudu2002
07-06-2025 01:29 PM
» Replies: 757
» Views: 320805
Excalibur G900.1160 BİOS unlock request
Last Post: Dudu2002
07-06-2025 01:28 PM
» Replies: 7
» Views: 1022
[REQUEST] Sony Vaio VPCEH & VPCEJ series...
Last Post: mariukonie
07-06-2025 09:17 AM
» Replies: 241
» Views: 154372

[REQUEST] Lenovo ThinkPad L420 & L520 (8GETxxWW) Whitelist Removal
#21
(02-03-2023, 11:22 AM)Maxinator500 Wrote: ThinkPad L420, L421, L520 latest BIOS with disabled whitelist and some unlocked settings: 8guj17us.zip.
Not tested.

Thanks for your time and effort!

After flashing there is no output on screen anymore. Any fix for that?

EDIT: I've found this BIOS - https://app.box.com/s/j4fffsagyzlohxmnvq6t - maybe could be used as a refrence for a valid BIOS. I'm terribly sorry to bother you again, it's just that I don't have the knowledge to perform this modification. This time maybe it's better to make it flashable with *.img file so I wouldn't need to see the screen.
find
quote
#22
(02-04-2023, 12:18 PM)WillingMost7 Wrote: After flashing there is no output on screen
Phoenix BIOS Recovery

Recommendations on this.
find
quote
#23
(02-04-2023, 04:30 PM)Maxinator500 Wrote:
(02-04-2023, 12:18 PM)WillingMost7 Wrote: After flashing there is no output on screen
Phoenix BIOS Recovery

Recommendations on this.

In the original 8guj17us.exe file there are $01CE000.FL1 and $01CE000.FL2 - which one should I rename as BIOS.WPH?
find
quote
#24
(02-04-2023, 05:06 PM)WillingMost7 Wrote: which one should I rename as BIOS.WPH?
FL1 file... it must be right.

Related Lenovo forum Q&A pages: 1, 2.
find
quote
#25
(02-04-2023, 06:19 PM)Maxinator500 Wrote:
(02-04-2023, 05:06 PM)WillingMost7 Wrote: which one should I rename as BIOS.WPH?
FL1 file... it must be right.

Related Lenovo forum Q&A pages: 1, 2.

Doesn't seem to be working, could be because I am using an SD card with adapter to USB? Cause it's formatted as FAT and I followed all the instructions with it flawlessly.
Maybe with CH341A Programmer? Though I have no idea where is the BIOS chip is located and what's the voltage. I've spotted two chips that looked to me like the BIOS, so perhaps one is FL1 and the other is FL2, how can I know which one to flash?
find
quote
#26
(02-04-2023, 09:18 PM)WillingMost7 Wrote: how can I know which one to flash?
They probably have inscriptions on the top. Select the one with larger memory capacity. FL1 belongs to this one.
find
quote
#27
(02-05-2023, 07:05 AM)Maxinator500 Wrote:
(02-04-2023, 09:18 PM)WillingMost7 Wrote: how can I know which one to flash?
They probably have inscriptions on the top. Select the one with larger memory capacity. FL1 belongs to this one.

Alright. Though FL2 is larger than FL1 by 13KB.
find
quote
#28
(02-05-2023, 07:16 AM)WillingMost7 Wrote: Though FL2 is larger than FL1 by 13KB.
Ignore the FL2. It should contain data for KBC in addition, or something like that.

FL1 contains unneeded flash part tables. Truncation is required.
find
quote
#29
(02-05-2023, 08:01 AM)Maxinator500 Wrote:
(02-05-2023, 07:16 AM)WillingMost7 Wrote: Though FL2 is larger than FL1 by 13KB.
Ignore the FL2. It should contain data for KBC in addition, or something like that.

FL1 contains unneeded flash part tables. Truncation is required.

So maybe this is why Phoenix BIOS Recovery didn't work?
I renamed the whole FL1 file as BIOS.WPH, maybe I should rename only the flashable part of FL1.
I'll try that first and will update here.
find
quote
#30
(02-05-2023, 08:01 AM)Maxinator500 Wrote:
(02-05-2023, 07:16 AM)WillingMost7 Wrote: Though FL2 is larger than FL1 by 13KB.
Ignore the FL2. It should contain data for KBC in addition, or something like that.

FL1 contains unneeded flash part tables. Truncation is required.

According to some other sources (example), e_bcpvpw.exe is only applied when BIOS file is compressed.
But it gives me "Source file format not acceptable - missing header!" so it means it is not compressed.
Meaning there is no reason to try Phoenix BIOS Recovery since it is already decompressed as I understand.

I used trancation on FL1 file and got a 2MB size file. Has it trimmed only the unnecessary code?
According to the site you provided it is ready but I just want to make sure.

Thanks again! And sorry for the bother.
find
quote


Forum Jump:


Users browsing this thread: 2 Guest(s)