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
i7 2860QM how to raise power limit?
Last Post: DeathBringer
Today 02:40 PM
» Replies: 1
» Views: 69
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: chaoszwerg
Today 02:24 PM
» Replies: 490
» Views: 217019
[REQUEST] Lenovo Yoga 7 Pro 82Y7 unlock
Last Post: WalkTheEarth
Today 02:20 PM
» Replies: 0
» Views: 62
[REQUEST] Acer Aspire 8930(G) BIOS Unloc...
Last Post: Ilias manolopoulos
Today 01:52 PM
» Replies: 58
» Views: 43321
ASUS M11AD > Haswell Refresh
Last Post: JCY1962
Today 12:40 PM
» Replies: 22
» Views: 7605
overclocking msi b150 gaming m3
Last Post: J1419
Yesterday 05:51 PM
» Replies: 0
» Views: 161
Asus K72jr repair
Last Post: Moddo73@PROXIMUS
Yesterday 02:08 PM
» Replies: 0
» Views: 140
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: Dudu2002
Yesterday 01:29 PM
» Replies: 757
» Views: 320263
Excalibur G900.1160 BİOS unlock request
Last Post: Dudu2002
Yesterday 01:28 PM
» Replies: 7
» Views: 959
[REQUEST] Sony Vaio VPCEH & VPCEJ series...
Last Post: mariukonie
Yesterday 09:17 AM
» Replies: 241
» Views: 153898
[Request] BIOS mod for Acer EG43M (P01-A...
Last Post: DeathBringer
Yesterday 08:50 AM
» Replies: 7
» Views: 346
HOW TO FLASH MODIFIED OR ORIGINAL BIOS
Last Post: Ali987
Yesterday 03:16 AM
» Replies: 20
» Views: 72024
[REQUEST] Lenovo ThinkPad Yoga S1 (GQETx...
Last Post: Dudu2002
Yesterday 03:05 AM
» Replies: 116
» Views: 56472
Hp 11-ak0040nr add option to boot from i...
Last Post: Xanmx
07-05-2025 05:47 PM
» Replies: 0
» Views: 247
Lenovo Y550 BIOS Unlocking (Advanced Men...
Last Post: NiTrOwow
07-05-2025 08:28 AM
» Replies: 4
» Views: 1027
[GUIDE] How to modify AMI MSI BIOS to un...
Last Post: solver_001
07-05-2025 06:34 AM
» Replies: 56
» Views: 334792
[REQUEST] Lenovo ThinkPad T450(s) (JBETx...
Last Post: s_l_24
07-05-2025 04:09 AM
» Replies: 148
» Views: 104042
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl...
Last Post: 2u75
07-04-2025 03:37 AM
» Replies: 131
» Views: 65029
[REQUEST] Acer Nitro 5 AN517-51 BIOS Unl...
Last Post: Dudu2002
07-03-2025 04:08 PM
» Replies: 18
» Views: 12945
[REQUEST] Lenovo IdeaPad Z570 (45CNxxWW)...
Last Post: andkul
07-03-2025 09:52 AM
» Replies: 96
» Views: 114798

[REQUEST] Lenovo L340-15API & V155-15API (ARCNxxWW) BIOS Unlock
#11
Hello guys,

this is my first request in this forum.
I have this Laptop here with the problem that the onboard ram is gone.
Had to desolder the ram modules and of course it won't post.

Lenovo V155-15API
Model Name:81V5
Serial Nr: PF2125LC
MTM: 81V50004GE
Factory ID: JVHFC1
MO: PF9XB9B23174
Motherboard Model: FG542 FG543 FG742 NM-C101
Rev: 1.0
2019 - 05 - 07
Ryzen 3 3200U Model


First i moved the two resistors that controll if dimm only or soldered ram (pictures attached).
I tried deactivating the onboard ram in bios with spd removal tool 1.6 which won't change anything.
Later tried a RAM patcher from Badcaps but also won't work.
On the tool and the patcher there are 32 entries detected everytime and changed.

At this point i maybe have a corrupt bios too but i tried 4 different bios.
1. NM-C101.bin from Discord.
2. arcn37ww from Lenovos website.
3. nm-c101 onboard disable from a random russian website.
4. My original dump (V155-15API_old) 

All of these are attached

Everytime i have run them trough the spd removal tool but no display.
Current draw 800-900milliamps (still searching for the onboard ram) 

Maybe the spd removal tools and the patcher won't find all of the entries.


So can someone mod the bios for me so it won't search for other soldered ram instead just work from dimm only?


Attached Files
.rar   arcn37ww.rar (Size: 4.17 MB / Downloads: 0)
.zip   Lenovo V155 15API old.zip (Size: 5.08 MB / Downloads: 0)
.rar   nm-c101 onboard disable.rar (Size: 4.27 MB / Downloads: 0)
.rar   NM-C101 RAM Disable.rar (Size: 391.35 KB / Downloads: 0)
.zip   NM-C101.bin.zip (Size: 4.97 MB / Downloads: 0)
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)