no LSI Adapter after flashing - Dell Perc H710P

[ReedyDD]

Hi,

I have been trying to flash my PERC H710P with the LSI IT firmware for 2 days now.
According to these instructions I proceed exactly as written, but after the step "programming sas address back" the LSI Flash Utility does not find an adapter.
But the Linux Live System definitely found a LSI controller after flahing.
with lspci --> 29:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2308 PCI-Express Fusion-MPT SAS-2 (rev 01)

If I now want to look at it with "info" or "setsas", I get this message:

LSI Corporation SAS2 Flash Utility
Version 20.00.00.00 (2014.09.18)
Copyright (c) 2008-2014 LSI Corporation. All rights reserved

No LSI SAS adapters found! Limited Command Set Available!
ERROR: Command Not allowed without an adapter!
ERROR: Couldn't Create Command -sasadd
Exiting Program.

Guide --> https://fohdeesha.com/docs/perc.html
for my controller --> https://fohdeesha.com/docs/H710-B0-full.html

In a forum I found someone who had the same problem with another controller, but unfortunately it doesn't help me to run the complete process 2x in a row.
https://forums.servethehome.com/index.php?threads/guide-flashing-h310-h710-h810-mini-full-size-to-it-mode.27459/page-3#post-255458

Battarie is unplugged
everything mentioned in the guide is disabled in the bios
board --> MSI B450 Tomahawk 2 with Ryzen7 2700X

if it helps i can gladly send the complete output from the process

[Fohdeesha]

This is not the place to post this, this is marcan's totally unrelated lsirec repository. There's a contact link on my guide, as well as a github repo for my guide specifically. email me using the contact button on the guide website and I can probably help