Samsung Galaxy J3 (SM-J327U) Firmware Overview
What is the latest SM-J327U firmware?
J327UUES6BTL1, released January 27, 2021 with Android 8.1. It is a security update on bootloader binary 6. The archive holds 20 official builds across 2 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?
Most likely not: there has been no new firmware since January 2021, so Android 8.1 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
Which Android versions did it get?
The SM-J327U builds in the archive run Android 7 to 8.1. The earliest build we have for each version:
- Android 8.1: J327UUEU3BRJ1 (Oct 2018), 10 builds in total
- Android 7: J327UUEU1AQJ1 (Oct 2017), 9 builds in total
Can I downgrade the SM-J327U 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 6:
- Binary 6 — since Dec 2020
- Binary 5 — since Jun 2020
- Binary 4 — since Jan 2020
- Binary 3 — since Feb 2018
- Binary 2 — since Dec 2017
- Binary 1 — since Jun 2017
A phone already on binary 6 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 6 build. How to read a build number.
All SM-J327U firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
J327UUES6BTL1
Security update
|
6 | XAR | 8.1 |
2021-01-27 | Download |
|
J327UUES6BTL1
Security update
|
6 | XAA | 8.1 |
2021-01-27 | Download |
|
J327UUES5BTF3
Security update
|
5 | XAA | 8.1 |
2020-06-24 | Download |
|
J327UUES5BTF3
Security update
|
5 | XAR | 7 |
2020-06-22 | Download |
|
J327UUES4BTA1
Security update
|
4 | XAR | — |
2020-01-13 | Download |
|
J327UUES4BTA1
Security update
|
4 | XAA | 8.1 |
2020-01-13 | Download |
|
J327UUES3BSG2
Security update
|
3 | XAA | 8.1 |
2019-07-10 | Download |
|
J327UUES3BSG2
Security update
|
3 | XAR | 8.1 |
2019-07-10 | Download |
|
J327UUEU3BSA1
Feature update
|
3 | XAA | 8.1 |
2019-01-18 | Download |
|
J327UUEU3BSA1
Feature update
|
3 | XAR | 8.1 |
2019-01-08 | Download |
|
J327UUEU3BRJ1
Feature update
|
3 | XAA | 8.1 |
2018-10-08 | Download |
|
J327UUEU3BRJ1
Feature update
|
3 | XAR | 8.1 |
2018-10-08 | Download |
|
J327UUES3ARF3
Security update
|
3 | XAA | 7 |
2018-06-27 | Download |
|
J327UUES3ARF3
Security update
|
3 | XAR | 7 |
2018-06-27 | Download |
|
J327UUEU3ARB1
Feature update
|
3 | XAA | 7 |
2018-02-01 | Download |
|
J327UUEU3ARB1
Feature update
|
3 | XAR | 7 |
2018-02-01 | Download |
|
J327UUEU2AQL1
Feature update
|
2 | XAA | 7 |
2017-12-15 | Download |
|
J327UUEU2AQL1
Feature update
|
2 | XAR | 7 |
2017-12-15 | Download |
|
J327UUEU1AQJ1
Feature update
|
1 | XAA | 7 |
2017-10-11 | Download |
|
J327UUEU1AQJ1
Feature update
|
1 | XAR | 7 |
2017-10-11 | Download |
Latest SM-J327U 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 |
|---|---|---|---|---|
| XAA | J327UUES6BTL1 | 6 | 8.1 | 2021-01-27 |
| XAR | J327UUES6BTL1 | 6 | 8.1 | 2021-01-27 |
Older SM-J327U Builds (Archive)
1 earlier build 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) | |
|---|---|---|---|---|
| J327UUEU1AQF1 | 1 | Jun 2017 | XAA, XAR | Find |
How to Flash SM-J327U 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 6 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.