Combatible firmware for old S7 I got an old s7. Looking through the settings it says:

Model Number: SM-G930FD
Build Number MMB29K.G930FXXU1BPIF
Baseband Verion:G930FXXU1DQE8

I am trying to find a compatible firmware to manually install, since when I told the phone to search for updates it does not find anything. The device has Android 6.0.1 with September 2016 security update which looks very insecure to use.

I am trying to find a compatible update, preferably based on android 8 and released during the last two months. However I am not sure about what to use.

Another strange thing is that when I try to find the existing firmware on the device I cannot find it when searching for SM-G930FD. However I do find this entry for SM-G930F with PDA G930FXXU1BPIF. Also if I enter download mode the phone shows:
PRODUCT NAME: SM-G930F
!!

I am not sure what to make of this. Is the phone a G930F or a G930FD? And what should match when I try to find an official firmware that should match this phone's hardware?
SM-G930FD and SM-G930FD are all models of the Samsung Galaxy S7. See Samsung Galaxy S7 Specifications.


  Versions: G930F (Global); G930FD (Global; Southeast Asia); G930W8 (Canada)



On the Misc section of the above link:


  Models:   SM-G930F, SM-G930A, SM-G930P, SM-G930V, SM-G930T, SM-G930R, SM-G930F, SM-G930FD, SM-G930W8, SM-G930S, SM-G930L, SM-G930K, SM-G9300


For firmwares, you can verify here for G930FD and here for G930F. Check if your country is among those with new firmwares.