Dell Inspiron 5490 Mantis Cml Mb 18778-1 4R47G$JA

[Dawnlink]

Hello guys , please I need bios bin for this motherboard, laptop bios has been messed with from another shop , laptop works but keeps displaying no tpm device found error every start up and doesn't not detect ssd sometimes , this is not a ssd problem, ssd works fine in another laptop, sometimes it detects and boots and sometimes it doesn't , I believe it is a bios issue , motherboard has a 10th gen core i7 with Nvidia mx graphics, I can't find the service tag on the frame and I can't trust the service tag in the bios as the bios has been flashed.
Anyone with manufacturing mode bios , please thank you 🙏

[alihomee]

i tried using these above files for dell insprion 5490 but no power at all...my service tag is:379LPW2 .....and mobo code is:Mantis CML MB 18778-1 problem is no display ...unfortunatily i doesnot have orignal files ....

[hoaca388]

i tried using these above files for dell insprion 5490 but no power at all...my service tag is:379LPW2 .....and mobo code is:Mantis CML MB 18778-1 problem is no display ...unfortunatily i doesnot have orignal files ....

Try

[alihomee]

Try

this file is 24mb....can not flash this ....ec is 8mb and main is 16mb....this is may be wrong file

[hoaca388]

this file is 24mb....can not flash this ....ec is 8mb and main is 16mb....this is may be wrong file

Edited

[alihomee]

Edited

tried above files but no luck.....it restarts 3 times but nothing on screen...no caps lock on keyboard no extranal display also......all supplies on mobo are good...i need a good working file

[hoaca388]

Again

[alihomee]

Again

keep on restart with these files...it restarts almost 8 times and after that one very loud beep and still no display.....amp consumption is also good...btw thanks for ur effort..i neeed a good file

[hoaca388]

Find the hardware problem.

[ipodnano16g]

Again

The file is ok, but it takes a long time to start up and need to clear me