Samsung Galaxy J3 (SM-J330FN) Firmware Overview
What is the latest SM-J330FN firmware?
J330FNXXU4CZC1, released April 16, 2026 with Android 9. It is a feature update on bootloader binary 4. The archive holds 20 official builds across 19 regions (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy J3 still getting updates?
The last build arrived in April 2026. Updates have slowed down — models late in their support period move to quarterly or half-yearly security patches before they stop.
Can I downgrade the SM-J330FN firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 4:
- Binary 4 — since Apr 2021
- Binary 3 — since Feb 2018
- Binary 2 — since Oct 2017
- Binary 1 — since Jun 2017
A phone already on binary 4 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 4 build. How to read a build number.
All SM-J330FN firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
J330FNXXU4CZC1
Feature update
|
4 | PHN | 9 |
2026-04-16 | Download |
|
J330FNXXS4CUF1
Security update
|
4 | 3IE | 9 |
2021-06-22 | Download |
|
J330FNXXS4CUF1
Security update
|
4 | H3G | 9 |
2021-06-22 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | BOG | 9 |
2021-06-21 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | OPT | 9 |
2021-06-21 | Download |
|
J330FNXXS4CUD4
Security update
|
4 | XEU | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD4
Security update
|
4 | BTU | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD4
Security update
|
4 | EVR | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | SFR | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | MEO | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD5
Security update
|
4 | MSR | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD5
Security update
|
4 | PHN | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD5
Security update
|
4 | PAN | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD5
Security update
|
4 | XEF | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD5
Security update
|
4 | TOP | 9 |
2021-06-17 | Download |
|
J330FNXXS4CUD5
Security update
|
4 | MOT | 9 |
2021-06-09 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | TSI | 9 |
2021-06-09 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | TIM | 9 |
2021-06-09 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | HUI | 9 |
2021-06-09 | Download |
|
J330FNXXS4CUD3
Security update
|
4 | MET | 9 |
2021-06-09 | Download |
Latest SM-J330FN Firmware by Region
The newest build for each region (CSC) code. Not sure which region your phone uses? See the CSC code guide.
| Region | Latest build | Bit | Android | Date |
|---|---|---|---|---|
| 3IE | J330FNXXS4CUF1 | 4 | 9 | 2021-06-22 |
| BOG | J330FNXXS4CUD3 | 4 | 9 | 2021-06-21 |
| BTU | J330FNXXS4CUD4 | 4 | 9 | 2021-06-17 |
| EVR | J330FNXXS4CUD4 | 4 | 9 | 2021-06-17 |
| H3G | J330FNXXS4CUF1 | 4 | 9 | 2021-06-22 |
| HUI | J330FNXXS4CUD3 | 4 | 9 | 2021-06-09 |
| MEO | J330FNXXS4CUD3 | 4 | 9 | 2021-06-17 |
| MET | J330FNXXS4CUD3 | 4 | 9 | 2021-06-09 |
| MOT | J330FNXXS4CUD5 | 4 | 9 | 2021-06-09 |
| MSR | J330FNXXS4CUD5 | 4 | 9 | 2021-06-17 |
| OPT | J330FNXXS4CUD3 | 4 | 9 | 2021-06-21 |
| PAN | J330FNXXS4CUD5 | 4 | 9 | 2021-06-17 |
| PHN | J330FNXXU4CZC1 | 4 | 9 | 2026-04-16 |
| SFR | J330FNXXS4CUD3 | 4 | 9 | 2021-06-17 |
| TIM | J330FNXXS4CUD3 | 4 | 9 | 2021-06-09 |
| TOP | J330FNXXS4CUD5 | 4 | 9 | 2021-06-17 |
| TSI | J330FNXXS4CUD3 | 4 | 9 | 2021-06-09 |
| XEF | J330FNXXS4CUD5 | 4 | 9 | 2021-06-17 |
| XEU | J330FNXXS4CUD4 | 4 | 9 | 2021-06-17 |
Older SM-J330FN Builds (Archive)
24 earlier builds from the samdb.org catalogue. They are not in the download list above; the link searches for the build on the partner site.
| Build / PDA | Bit | Month | Regions (CSC) | |
|---|---|---|---|---|
| J330FNXXU3BRK3 | 3 | Nov 2018 | BGL, BHT, ERO, EUR, MET, MOT, MSR, O2C, PAN, PHN, SEE, TOP | Find |
| J330FNXXU3BRJ2 | 3 | Oct 2018 | ATL, BTU, CNX, CYV, EUR, ITV, OMN, PHN, SEE, TCL, VD2, VDC, VDH, VDI, VGR, VIP, VOD, XEU | Find |
| J330FNXXS3BRJ1 | 3 | Oct 2018 | 3IE, BGL, BHT, COS, CRO, DDE, DHR, DTM, ERO, H3G, MBM, MEO, MOT, MSR, O2C, O2U, OPT, PAN, SFR, TIM, TMH, TMZ, TOP | Find |
| J330FNXXU3BRI1 | 3 | Sep 2018 | XEF | Find |
| J330FNXXS3BRI2 | 3 | Sep 2018 | ITV | Find |
| J330FNXXU3BRH2 | 3 | Aug 2018 | AMO, EVR, FTM, ORS | Find |
| J330FNXXU3BRG2 | 3 | Jul 2018 | 3IE, ATL, BGL, BHT, BOG, BTU, CNX, COS, CRO, CYV, DDE, DTM, ERO, EUR, H3G, HUI, ITV, MBM, MEO, MET, MOT, MSR, O2C, O2U, OMN, OPT, PAN, PHN, SEE, SFR, TCL, TIM, TMH, TMZ, TOP, TSI, VDC, VDH, VDI, VGR, VIP, XEU | Find |
| J330FNXXU3ARF2 | 3 | Jun 2018 | TIM | Find |
| J330FNXXS3ARF1 | 3 | Jun 2018 | AMO, FTM, ORS | Find |
| J330FNXXU3ARE1 | 3 | May 2018 | MOT | Find |
| J330FNXXU3ARD1 | 3 | Apr 2018 | AMO, FTM, HUI, ORS | Find |
| J330FNXXU3ARC2 | 3 | Mar 2018 | ATL, CNX, CYV, OMN, TCL, VD2, VDC, VDH, VDI, VGR, VIP, VOD | Find |
| J330FNXXU3ARC1 | 3 | Mar 2018 | 3IE, BGL, BHT, BOG, BTU, COS, CRO, DDE, DHR, DTM, ERO, EUR, EVR, H3G, ITV, MBM, MEO, MET, MOT, MSR, O2C, PAN, PHN, SEE, SFR, TIM, TMH, TMZ, TOP, TSI, XEF, XEU | Find |
| J330FNXXU3ARB1 | 3 | Feb 2018 | O2U | Find |
| J330FNXXU2AQK8 | 2 | Nov 2017 | 3IE, AMO, ATL, BGL, BOG, BTU, CNX, COS, CRO, CYV, DDE, DHR, DTM, ERO, EUR, FTM, H3G, HUI, ITV, MBM, MEO, MET, MOT, MSR, O2C, OMN, PAN, PHN, SEE, SFR, TCL, TIM, TMH, TMZ, TOP, TSI, VD2, VDC, VDH, VDI, VGR, VIP, VOD, XEF, XEU | Find |
| J330FNXXU2AQK2 | 2 | Nov 2017 | O2U | Find |
| J330FNXXS2AQJ4 | 2 | Oct 2017 | 3IE, H3G | Find |
| J330FNXXS2AQJ3 | 2 | Oct 2017 | AMO, FTM | Find |
| J330FNXXS2AQJ2 | 2 | Oct 2017 | BGL | Find |
| J330FNXXU1AQI1 | 1 | Sep 2017 | ATL, CNX, CYV, OMN, TCL, VD2, VDC, VDH, VDI, VGR, VIP, VOD | Find |
| J330FNXXS1AQI1 | 1 | Sep 2017 | BOG, BTU, COS, CRO, DDE, DHR, DTM, ERO, EUR, ITV, MAX, MBM, MET, MSR, O2C, PAN, PHN, SEE, TIM, TMH, TMZ, TRG, TSI, TTR, XEF, XEU | Find |
| J330FNXXU1AQG3 | 1 | Jul 2017 | BGL, SFR | Find |
| J330FNXXU1AQFA | 1 | Jun 2017 | AMO, O2U | Find |
| J330FNXXU1AQF9 | 1 | Jun 2017 | ITV, O2C, TIM, XEF | Find |
How to Flash SM-J330FN Firmware
Put the Samsung Galaxy J3 into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 4 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.