
Samsung Galaxy J1 Mini
The latest firmware for Samsung Galaxy J1 Mini (SM-J105Y) is J105YDVS0ARC1 with Android 5.1.1 (Lollipop), released on March 12, 2018 for 4 regions (CSC). Every official firmware build for SM-J105Y, 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/J105YDVS0ARC1
All 9 builds in our database run Android 5.1.1 (Lollipop). The newest build, J105YDVS0ARC1, was released on March 12, 2018. No new build has appeared for 104 months, so regular updates for this model have most likely ended.
Specifications of SM-J105, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-J327VPP

SM-J100VPP

SM-J260A

SM-J120P

SM-J737A

SM-J727A

SM-J727VPP

SM-J327A
The newest firmware for SM-J105Y runs Android 5.1.1 (Lollipop): build J105YDVS0ARC1, released on March 12, 2018.
The latest build for SM-J105Y, J105YDVS0ARC1, was released on March 12, 2018 (8 years ago).
SM-J105Y has had no new firmware for 104 months, so regular updates have most likely ended.
Yes, all firmware files for SM-J105Y are 100% official, original, and obtained directly from Samsung servers.
To flash SM-J105Y, 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-J105Y.