Dell_Inspiron_15_3520_and_Vostro_3420_3520_LA_L947P_REV_1_0_100%.rar

TXTAbout Dell Inspiron 15 3520 and Vostro 3420 3520 LA-L947P REV 1 0 100% BIOS / EC firmware

Dell Inspiron 15 3520 and Vostro 3420 3520 LA-L947P REV 1 0 100% is a Dell BIOS / EC firmware dump for board LA-L947P — tested. It is packed in a RAR archive of 11.0 MB, board revision 1. It was first posted on 12 Jan 2025 and is available in 3 Telegram channels.

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 LA-L947P revision 1.

For the same board you can also find a schematic — see all LA-L947P files.

MSGFrom the Telegram post

LA-L947P REV 1.0 TESTED OK 100%

J1Download LA-L947P BIOS / EC firmware from Telegram

R1How to download Dell Inspiron 15 3520 and Vostro 3420 3520 LA-L947P REV 1 0 100%

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 Dell_Inspiron_15_3520_and_Vostro_3420_3520_LA_L947P_REV_1_0_100%.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 LA-L947P. 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?