Forum RSS Feed Follow @ Twitter Follow On Facebook

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

Username:


Password:





[-]
Latest Threads
[RESOLVED] Help! BIOS for Asus GL503VS R...
Last Post: AmosNZ
Today 12:09 AM
» Replies: 5
» Views: 2917
[REQUEST] Acer Predator Helios 500 PH517...
Last Post: TeckToe
Yesterday 11:29 PM
» Replies: 4
» Views: 1410
Gigabyte G6X 9MG insydeH2O IOS Unlock
Last Post: Zzhheennyyaa
Yesterday 04:37 PM
» Replies: 2
» Views: 577
Lenovo Yoga Pro 7 14ASP9 Bios Unlock
Last Post: Ghibbi64
Yesterday 11:22 AM
» Replies: 2
» Views: 136
[SOLVED] Lenovo IdeaPad 510-15ISK - BIOS...
Last Post: outsydeh2o
Yesterday 09:39 AM
» Replies: 1
» Views: 175
i7 2860QM how to raise power limit?
Last Post: mariukonie
Yesterday 04:17 AM
» Replies: 9
» Views: 337
(new to forums) searching for aid/direct...
Last Post: adorable_yangire
Yesterday 12:11 AM
» Replies: 0
» Views: 120
[SOLVED] Change Serial Number, UUID, Mac...
Last Post: dsdn1
07-08-2025 07:55 PM
» Replies: 10
» Views: 16806
[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: 147
[REQUEST] Lenovo Yoga 7 Pro 82Y7 unlock
Last Post: Dudu2002
07-08-2025 07:13 AM
» Replies: 1
» Views: 211
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: Dudu2002
07-08-2025 07:12 AM
» Replies: 491
» Views: 217512
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: 253
Asus K72jr repair
Last Post: Moddo73@PROXIMUS
07-06-2025 02:08 PM
» Replies: 0
» Views: 226
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: Dudu2002
07-06-2025 01:29 PM
» Replies: 757
» Views: 320791
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: 154361

[REQUEST] Medion Erazer Defender P50 Bios Unlock
#1
Laptop Model: Medion Erazer Defender P50 MD62596 (NP70RND1)

BIOS Information:

    BIOS Type: InsydeH2O
    Current BIOS Version: Latest official version 1.07.04RME5_00027 (flashed using right-click on .ff file)
    Official BIOS Download: https://www.medion.com/de/service/produc...l/30036595
    BIOS Dump: Created using FPTW64.exe -d backup.bin - https://drive.google.com/file/d/1GeiEN9j...drive_link
    BIOS Dump IFR TXT - https://drive.google.com/file/d/18u8b84M...drive_link

* sorry for gdrive links, upload function here doesn't work for me -_-

What I’ve Tried & Results:

✅ Checked & Modified BIOS Variables Using RU.EFI

    0x1C6C → Changed to 0x01 (No effect after reboot. Thought it would be the main var to change)
    Other modified variables: 0x1D3A, 0xBA4, 0x1C5E
    After reboot, values remain correctly set, but BIOS menu does not unlock.

✅ Attempted BIOS Unlock via GRUB (setup_var)

    Didn't proceed with it due to the output "GUID does not match expected GUID  / expected a different size of the Setupvariable" hovewer the value was printed right with 0x00 (before changing in ru.efi)


✅ Opened & Edited BIOS in H2OUVE

    In Setup Tab → Changed "Suppress/Greyout" options from Auto to None.
    This revealed all hidden BIOS options in GUI.
    However, any changes I make are NOT saved, even though H2OUVE shows no errors when saving.
    After reopening the modified .bin, all changes revert back to defaults (in both, official bios bin and my bios dump bin).

✅ Checked Flash Descriptor (FD) & Flashing Permissions

    BIOS Dump Works (FPTW64.exe -d flash_dump.bin completes successfully).
    However, attempting to flash back an edited BIOS results in Error 167: Protected Range Registers.

What I Need Help With:

1️⃣ How to completely unlock Advanced BIOS menus (including CPU, Fan Control, Overclocking, etc.).
2️⃣ How to bypass PRx protection (Error 167) and flash a modified BIOS.
3️⃣ Why changes in RU.EFI persist after reboot but have no visible effect in BIOS.
4️⃣ Why H2OUVE does not save changes to .bin file, despite no errors while saving.

Thank you so much in advance! Rolleyes
find
quote
#2
(03-18-2025, 03:37 PM)svatlex Wrote: Laptop Model: Medion Erazer Defender P50 MD62596 (NP70RND1)

BIOS Information:

    BIOS Type: InsydeH2O
    Current BIOS Version: Latest official version 1.07.04RME5_00027 (flashed using right-click on .ff file)
    Official BIOS Download: https://www.medion.com/de/service/produc...l/30036595
    BIOS Dump: Created using FPTW64.exe -d backup.bin - https://drive.google.com/file/d/1GeiEN9j...drive_link
    BIOS Dump IFR TXT - https://drive.google.com/file/d/18u8b84M...drive_link

* sorry for gdrive links, upload function here doesn't work for me -_-

What I’ve Tried & Results:

✅ Checked & Modified BIOS Variables Using RU.EFI

    0x1C6C → Changed to 0x01 (No effect after reboot. Thought it would be the main var to change)
    Other modified variables: 0x1D3A, 0xBA4, 0x1C5E
    After reboot, values remain correctly set, but BIOS menu does not unlock.

✅ Attempted BIOS Unlock via GRUB (setup_var)

    Didn't proceed with it due to the output "GUID does not match expected GUID  / expected a different size of the Setupvariable" hovewer the value was printed right with 0x00 (before changing in ru.efi)


✅ Opened & Edited BIOS in H2OUVE

    In Setup Tab → Changed "Suppress/Greyout" options from Auto to None.
    This revealed all hidden BIOS options in GUI.
    However, any changes I make are NOT saved, even though H2OUVE shows no errors when saving.
    After reopening the modified .bin, all changes revert back to defaults (in both, official bios bin and my bios dump bin).

✅ Checked Flash Descriptor (FD) & Flashing Permissions

    BIOS Dump Works (FPTW64.exe -d flash_dump.bin completes successfully).
    However, attempting to flash back an edited BIOS results in Error 167: Protected Range Registers.

What I Need Help With:

1️⃣ How to completely unlock Advanced BIOS menus (including CPU, Fan Control, Overclocking, etc.).
2️⃣ How to bypass PRx protection (Error 167) and flash a modified BIOS.
3️⃣ Why changes in RU.EFI persist after reboot but have no visible effect in BIOS.
4️⃣ Why H2OUVE does not save changes to .bin file, despite no errors while saving.

Thank you so much in advance! Rolleyes
Hi
Your bios is rewrite protected
Bios mod can be flashed using SPI-programmer+SOIC8 clip only
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)