Okay, I have been reading all over this site and the internet about flashing. I understand about choosing a FW that is higher than mine.

The first page of this thread says:"Additionally, there is a content image ("eMMC image") for most countries/regions that can be used to reset the user data on the phone and restore the wallpaper/music/map files that originally shipped with it. It is possible to "mix and match" any content image with any main firmware image, which is useful for installing your home country's maps on an imported N9. If you don't require preinstalled maps, or if Nokia doesn't produce a content image for your country (e.g. US and Canada), you can save time by using the content image for product code 059J1Z5 ("rest of world"), which doesn't include map files."

So, my two questions are, if my firmware on the phone is DFL61_Harmattan_40.2012.21-3.249.1_PR 249,
can I use DFL61 HARMATTAN 40.2012.21-3.348.2 PR LEGACY 348 ARM RM-696 PRD signed.bin from N9 Rm-696 Country Variant Argentina Ar Black deepskd v4 --Product Code : 059L4L3 ? Does any of the "deepskd v4" mean something particular that I don't understand?

OR use the DFL61 HARMATTAN 40.2012.21-3.299.1 PR LEGACY 299 ARM RM-696 PRD signed.bin --from N9 RM-696 Country Variant Australia AU Black 16GB V1 - MR
Product Code : 059L698?
Again, the V1 - MR confuses me. I don't want another "rebranding" of the phone.

Also, can I use the DFL61_HARMATTAN_40.2012.13-7.LTA_EMMC_LTA instead of the one that is listed with the FWs?

Thank you in advance for your patience and reply.