Re: Need Clean Bios for DELL Vostro 5471



I was able to confirm this using the schematics. Inspiron 5370 was known by the internal product name "LOKI", and does not have a discrete TPM (So use SMDFlea's image from #10). Vostro 5471 was known as "ARMANI" and have a discrete TPM (So use the image in #2, like I did).

After flashing #2 image, HWiNFO64 still shows the laptop model as "Inspiron 5370". I don't know if that's a glitch, or if all models in this family generically show up with that name. But so far, I haven't encountered...

Re: Need Clean Bios for DELL Vostro 5471

Additional information for debugging Vostro 5471 flash issues,
hopefully useful to someone someday:

Symptom: No charger light, power button LED on, but computer doesn't boot
Problem: flash chip not present/soldered properly/dead.
The EC bootloader can't read its firmware from flash, so the laptop doesn't boot at all.

Symptom: No display. Diagnostic Led 2 Amber+1 white, described in manual as "Processor problem".
Problem: EC started, but flash is corrupted, Boot guard or ME issues....

Re: Need Clean Bios for DELL Vostro 5471

I've confirmed that the TPM issues I had were due to using the bios Image from #10
SHA256: 35f0a68f4b524fdc4f3c5ba9cc1aa2d3c4dc8be548dea0361f9387519b47431f
In FIT, this image had "Enable fTPM at startup" ON, unlike my original Bios and the image in #2. As a result, after flashing my vostro 5471 booted, but I had no functioning TPM (bitlocker was suspended by the OS and could not be resumed).

I flashed the bios image from `new5471_CLEAR_ME.rar `, provided by Ghamidi in #2,
SHA256: 962d3ac8f13e68027267eba26dc167e98b54cce85983dad4eafececade9dadb9...

Re: Vostro 5471 no picture, fans on full

Check if the laptop is giving a LED diagnostic code (blinking amber+white LED on left side of laptop). If so, see manual on Dell website for a table that gives the meaning of the different codes (Example: 2 amber+4 white). The issue may be as simple as needing to re-seat the memory, or replacing a bad memory stick.

Be aware that, after fixing the issue, the laptop may need to put itself through several on-off cycles before it manages to POST. Be patient and give it a few minutes before deciding that the fix didn't work.
...

Re: Need Clean Bios for DELL Vostro 5471

SMDflea known-good dump managed to revive a dead 5471, but it now thinks it's an inspiron 5370. Both models use the same mobo but firmware images seem have different options in intel FIT re Intel PTT (at least, maybe others). So, the laptop's dTPM isn't seen by windows.

I recommend you try one of the cleaned 5471 dumps first, if you have a 5471.

Re: Dell Vostro 5590

Thank you!