BIOS

LENOVO THINKPAD P50S LSZ-2 MB 15202-3 448.06D04.0031 .rar

BIOS / EC firmware for Lenovo P50S / LSZ-2 / 448.06D04.0031 · board 15202-3, 15202-2 · 7.5 MB · shared in 1 Telegram post.

Download in Telegram Similar files

TXTAbout LENOVO THINKPAD P50S LSZ-2 MB 15202-3 448.06D04.0031 BIOS / EC firmware

LENOVO THINKPAD P50S LSZ-2 MB 15202-3 448.06D04.0031 is a Lenovo P50S / LSZ-2 / 448.06D04.0031 BIOS / EC firmware dump for board 15202-3 / 15202-2 (2 MB) — tested. It is packed in a RAR archive of 7.5 MB. It was first posted on 25 Jun 2026 and is available in 1 Telegram channel.

Write it with an SPI programmer such as CH341A, RT809H or XGecu T48 to revive a board after a failed BIOS update, fix a corrupted Intel ME region or remove a forgotten BIOS password. Read and save the original chip first, and check that your board is 15202-3.

Type
BIOS & EC
Format
.rar · RAR archive
Size
7.5 MB
Brand
Lenovo
Board number
15202-3, 15202-2
Model
P50S, LSZ-2, 448.06D04.0031
Flash size
2 MB
Notes
tested
First posted
25 Jun 2026
Last posted
25 Jun 2026
Sources
1

Tags

15202-3 BIOS15202-3 BIOS binLenovo 15202-315202-2 BIOS15202-2 BIOS binLenovo 15202-2Lenovo P50S BIOSLenovo P50S motherboardLenovo P50S BIOS dumpBIOS bin fileSPI flash dumpLenovo laptop BIOS binBIOS free download

MSGFrom the Telegram post

LENOVO THINKPAD P50S LSZ-2 15202-2 OKOK TESTED OK 100%

J1Download 15202-3 BIOS / EC firmware from Telegram

R1How to download LENOVO THINKPAD P50S LSZ-2 MB 15202-3 448.06D04.0031

  1. Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
  2. You don’t need to join the channel. Tap the file LENOVO THINKPAD P50S LSZ-2 MB 15202-3 448.06D04.0031 .rar to download it.
  3. Open it with 7-Zip (free) or WinRAR.

If a post was deleted, try another source above or search for 15202-3. Step-by-step help: downloading from Telegram.

Back up the original chip twice before writing this dump, and check that the board number and chip size match. See how to flash a BIOS chip.

.RARWhat is a .rar file and how to open it?

RAR archive. A compressed folder. It can hold a schematic, a boardview, a BIOS dump or all three.

Open with:

  • 7-Zip (free)
  • WinRAR

Tip: If the archive asks for a password, look for it in the Telegram post text.