A long time ago, I switched an LSI to IT mode without issues. I'm about to update my old HP freenas, and I got a cheap LSI board from amazon but I havent been able to flash it correctly so far. I collected many firmwares from many places, and put everything on a EFI/DOS bootable USB key.
I have the following content :
I include the md5sum as some files with the same name have different content...... making things even more complicated.
I had some doubts on the chipset so I removed the heatsink, and noticed the thermal compound was completely dry and inefficient so I cleaned it and put a decent one. Here is the chip of the card : https://photos.app.goo.gl/NXBhBz2EtjHhnJie6
megarec -cleanflash 0 works as expected, as well as megarec -writesbr 0 sbrempty.bin (tried also with sbrfj.bin)
Things get worse when trying to upload firmware using sas2flash (P5 version, but tried others as well) : it always ends up with the famous "Failed to validate MfgPage2"
Each time, I went back to megarec to clean, and then repeat using different firmware, different sas2flash versions.
I also put the card in the PC where I succedded with the previous card, but still no luck.
Any idea on what I'm doing wrong ? Next step would be to return the card to the vendor (I asked him if he had any drivers or anything, but no)