Bios Lenovo IdeaPad S340 (Lenovo IdeaPad S340-14IWL, S340-15IWL, C340-15IWL, FLEX-15IWL) LA-H101P Bios

Q: Why does my Lenovo laptop show invalid serial number, invalid UUID or invalid product name?

Invalid serial number, invalid UUID, invalid MTM or invalid product name usually means the identity data inside the Lenovo BIOS, NVRAM or DMI area is missing or damaged. This can happen after motherboard replacement, wrong BIOS dump, incomplete programming, EEPROM or DMI editing error, or corrupted Lenovo identity data.

Q: Can Lenovo ME region problems cause shutdown after 30 minutes, fan 100 percent or missing MAC address?

Yes. ME N/A, shutdown after about 30 minutes, missing MAC address, fan running at 100 percent, or Intel ME boot errors can be related to a damaged or unconfigured ME region. In many Lenovo cases, the ME region must be cleaned, rebuilt or configured correctly for the exact chipset and motherboard.

Q: Can Lenovo BIOS password or supervisor password problems be repaired?

Lenovo BIOS password cases can include supervisor password, power-on password, system lock, EEPROM password data or newer platform unlock cases. These cases are security-sensitive and device-specific. For owned devices, repair may require BIOS dump analysis, EEPROM data check, Lenovo ID reset, buffer area cleanup or a case-specific service file.

Q: Why does my Lenovo laptop always enter BIOS or boot menu?

A Lenovo laptop may always enter BIOS or boot menu when it cannot find a valid boot device or boot configuration. Check whether the SSD, HDD or NVMe drive is detected, then check boot order, UEFI or Legacy mode, Secure Boot, Windows Boot Manager and storage health. If it started after BIOS work, NVRAM or boot configuration may need repair.

Q: What does EFI PXE boot failed mean on a Lenovo laptop?

EFI PXE boot failed usually means the laptop tried to boot from the network because it could not boot from the internal drive. If the storage device and connector are healthy, the issue can be related to BIOS settings, NVRAM, corrupted boot entries, damaged BIOS region or incorrect firmware configuration.

Q: Why does my Lenovo laptop have slow boot or delayed display?

Slow boot, delayed display, long POST time, fan spin issues or delayed Lenovo logo can be caused by BIOS corruption, ME region problems, EC firmware mismatch, bad NVRAM settings or unstable hardware detection. If basic hardware checks are normal, the BIOS dump, ME region, EC data and Lenovo identity area should be checked together.

Ahmad Kor · Jul 25, 2020

Lenovo IdeaPad S340-14IWL
Lenovo IdeaPad S340-15IWL
Lenovo IdeaPad S340-15IWL Touch
Lenovo IdeaPad C340-15IWL
Lenovo IdeaPad FLEX-15IWL
LA-H101P
Bios-Ver ALCN31WW(V2.08)

Ahmad Kor · Dec 12, 2020

user43651 said:
Sorry if im bothering too much, i already dowwload the schematics, so i found the spi rom, my question now is, what should i do with the "EC.bin" file, like i said im new with pc bios, but ive been doing Mac Bios long ago, and that file make feel that is a little different procedure. Any help would be really appreciated. Thanks!

How To Change And Program I/O In Lenovo G50-70

In this video, we have Lenovo G50-70 laptop with a problematic IO. You can practically see how to change IT8586E IO IC and you’ll get familiar with all the details of programming IO by SVOD3 and TNM5000 programmers. Stay with us and tell us what you think about the video in the comment section...

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Bios Lenovo IdeaPad S340 (Lenovo IdeaPad S340-14IWL, S340-15IWL, C340-15IWL, FLEX-15IWL) LA-H101P Bios

Ahmad Kor

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Ahmad Kor

How To Change And Program I/O In Lenovo G50-70

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