
Samsung Galaxy S5 mini
The latest firmware for Samsung Galaxy S5 mini (SM-G800HQ) is G800HXXS1CRJ2 with Android 6.0.1 (Marshmallow), released on March 20, 2019 for 1 region (CSC). Every official firmware build for SM-G800HQ, newest first: one row per build with all regions (CSC) that received it.
Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/G800HXXS1CRJ2
SM-G800HQ started on Android 4 and has received 2 major Android upgrades; it now runs Android 6.0.1 (Marshmallow). The newest build, G800HXXS1CRJ2, was released on March 20, 2019. No new build has appeared for 92 months, so regular updates for this model have most likely ended.
Specifications of SM-G800H, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.
· The security of your device has been improved.

SM-G800X

SM-G900AZ

SM-G9098

SM-G903W

SM-G901F
The newest firmware for SM-G800HQ runs Android 6.0.1 (Marshmallow): build G800HXXS1CRJ2, released on March 20, 2019.
The latest build for SM-G800HQ, G800HXXS1CRJ2, was released on March 20, 2019 (7 years ago).
SM-G800HQ has had no new firmware for 92 months, so regular updates have most likely ended.
Yes, all firmware files for SM-G800HQ are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G800HQ, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.
Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing SM-G800HQ.