If you have an Octagon SF1008PSE+, you can not use the .ird file. This receiver only has 32 Mbyte of flash memory; enigma2 will not fit into that.
Lots of people (including the max-git) have the HS7810 (reseller 25 XX 00 A0) range confused with the HS7819 range and have called the HS7819 the HS7810a. The files in the tdt/flash/7810a folder are actually meant for the HS7819 but set the wrong reseller code.
The Octagon SF1008GSE+ is a member of the HS7819 family which has reseller code 27 XX 20 A0 and 256 Mbyte of flash in which enigma2 will fit.
To confuse matters more, a third family of these very similar receivers is to appear soon with even more memory but probably again the same outside appearance (one of them is the Rebox RE-4220; Rebox RE-4200=HS7810, Rebox RE-4210=HS7819).
I am currently busy sorting out this mess and hope to post improved script files for Fortis receivers and an expanded fup program (to generate the ird) which can set all four reseller ID bytes in a few weeks.
Regards,
Audioniek.