DELL_5490_MANTIS_CML_MB_18778_1_4R47G$JA_CPU_SRGKY_I5_1021U_N17S.7z

TXTAbout DELL 5490 MANTIS CML MB 18778-1 4R47G$JA CPU SRGKY I5 1021U N17S BIOS / EC firmware

DELL 5490 MANTIS CML MB 18778-1 4R47G$JA CPU SRGKY I5 1021U N17S is a Dell 4R47G$JA / 1021U / N17S BIOS / EC firmware dump for board 18778-1 — tested. It is packed in a 7Z archive of 9.4 MB, I5 1021U / I5-10210U CPU, N17S-G2 graphics. It was first posted on 30 Jul 2022 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 18778-1.

For the same board you can also find a schematic and a boardview — see all 18778-1 files.

MSGFrom the Telegram post

DELL 5490 Mantis CML 18778-1 SRGKY i5-10210U N17S-G2-1 i5-10210U TESTED OK 100%

J1Download 18778-1 BIOS / EC firmware from Telegram

R1How to download DELL 5490 MANTIS CML MB 18778-1 4R47G$JA CPU SRGKY I5 1021U N17S

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_5490_MANTIS_CML_MB_18778_1_4R47G$JA_CPU_SRGKY_I5_1021U_N17S.7z to download it.
3. Open it with 7-Zip (free) or NanaZip.

If a post was deleted, try another source above or search for 18778-1. 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.

.7ZWhat is a .7z file and how to open it?