Samsung Galaxy J3 (SM-J3300) Firmware Overview
What is the latest SM-J3300 firmware?
J3300ZCU4CUE2, released June 18, 2021 with Android 9. It is a feature update on bootloader binary 4. The archive holds 22 official builds across 1 region (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 June 2021, so Android 9 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-J3300 builds in the archive run Android 7.1.1 to 9. The earliest build we have for each version:
- Android 9: J3300ZCU3CSI1 (Sep 2019), 15 builds in total
- Android 8.1: J3300ZCU2BRJ2 (Oct 2018), 3 builds in total
- Android 7.1.1: J3300ZCU1ARD1 (Apr 2018), 2 builds in total
Can I downgrade the SM-J3300 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 Jul 2020
- Binary 3 — since Apr 2019
- Binary 2 — since Aug 2018
- Binary 1 — since Jan 2018
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-J3300 firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
J3300ZCU4CUE2
Feature update
|
4 | CHC | 9 |
2021-06-18 | Download |
|
J3300ZCS4CUE1
Security update
|
4 | CHC | 9 |
2021-05-18 | Download |
|
J3300ZCS4CUD1
Security update
|
4 | CHC | 9 |
2021-04-26 | Download |
|
J3300ZCU4CTL1
Feature update
|
4 | CHC | 9 |
2020-12-21 | Download |
|
J3300ZCU4CTK1
Feature update
|
4 | CHC | 9 |
2020-12-01 | Download |
|
J3300ZCS4CTG1
Security update
|
4 | CHC | 9 |
2020-08-05 | Download |
|
J3300ZCS4CTG1
Security update
|
4 | CHC | 9 |
2020-07-29 | Download |
|
J3300ZCS3CTC1
Security update
|
3 | CHC | 9 |
2020-04-21 | Download |
|
J3300ZCS3CTC1
Security update
|
3 | CHC | 9 |
2020-03-16 | Download |
|
J3300ZCU3CSK4
Feature update
|
3 | CHC | 9 |
2019-12-09 | Download |
|
J3300ZCU3CSK4
Feature update
|
3 | CHC | 9 |
2019-11-26 | Download |
|
J3300ZCU3CSK2
Feature update
|
3 | CHC | 9 |
2019-11-12 | Download |
|
J3300ZCU3CSK2
Feature update
|
3 | CHC | 9 |
2019-11-11 | Download |
|
J3300ZCU3CSI1
Feature update
|
3 | CHC | 9 |
2019-09-05 | Download |
|
J3300ZCU3CSI1
Feature update
|
3 | CHC | 9 |
2019-09-04 | Download |
|
J3300ZCS3BSD1
Security update
|
3 | CHC | — |
2019-04-25 | Download |
|
J3300ZCS3BSD1
Security update
|
3 | CHC | 8.1 |
2019-04-08 | Download |
|
J3300ZCS2BSA2
Security update
|
2 | CHC | 8.1 |
2019-02-01 | Download |
|
J3300ZCU2BRJ2
Feature update
|
2 | CHC | 8.1 |
2018-10-19 | Download |
|
J3300ZCU2ARH1
Feature update
|
2 | CHC | — |
2018-08-17 | Download |
|
J3300ZCU2ARH1
Feature update
|
2 | CHC | 7.1.1 |
2018-08-14 | Download |
|
J3300ZCU1ARD1
Feature update
|
1 | CHC | 7.1.1 |
2018-04-10 | Download |
Older SM-J3300 Builds (Archive)
2 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.
How to Flash SM-J3300 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.