Combatible firmware for old S7

Question

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?


— Karsus | Sources

Answer

SM-G930F is the single-SIM variant and FD the dual-SIM variant. If it says FD in Settings, and - as a more concrete proof - can also take/read 2 SIMs (FD has a different SIM tray), then you can be sure it's an FD.



The two actually share the same hardware otherwise, hence you'll see G930F in Download Mode. In fact, 1) there had been users reporting that flashing F firmware on FD is possible and doesn't remove dual-SIM functionality (more on that in this XDA thread), and 2) it's even possible to convert an F to an FD with certain steps and swapping the SIM tray for one from FD.



As for firmware, any G930FD firmware listed will work, though for the best customized experience you'll want to find one that matches or at least close to your geographical region.


— Andy Yan | Sources

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