Samsung Galaxy J7 (SM-J730K) Firmware Overview
What is the latest SM-J730K firmware?
J730KKKS5CUD1, released May 17, 2021 with Android 9. It is a security update on bootloader binary 5. The archive holds 19 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 J7 still getting updates?
Most likely not: there has been no new firmware since May 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-J730K builds in the archive run Android 7 to 9. The earliest build we have for each version:
- Android 9: J730KKKU2CSF5 (Jun 2019), 7 builds in total
- Android 8.1: J730KKKU2BRJ8 (Oct 2018), 4 builds in total
- Android 7: J730KKKU1AQG1 (Jul 2017), 8 builds in total
Can I downgrade the SM-J730K 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 5:
- Binary 5 — since Apr 2021
- Binary 4 — since Jun 2020
- Binary 3 — since Dec 2019
- Binary 2 — since Apr 2018
- Binary 1 — since Jul 2017
A phone already on binary 5 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 5 build. How to read a build number.
All SM-J730K firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
J730KKKS5CUD1
Security update
|
5 | KTC | 9 |
2021-05-17 | Download |
|
J730KKKU4CUA1
Feature update
|
4 | KTC | 9 |
2021-02-15 | Download |
|
J730KKKU4CTF3
Feature update
|
4 | KTC | 9 |
2020-06-15 | Download |
|
J730KKKU4CTF3
Feature update
|
4 | KTC | 9 |
2020-06-10 | Download |
|
J730KKKU3CSL1
Feature update
|
3 | KTC | 9 |
2019-12-03 | Download |
|
J730KKKU3CSL1
Feature update
|
3 | KTC | 9 |
2019-12-02 | Download |
|
J730KKKU2CSF5
Feature update
|
2 | KTC | 9 |
2019-06-13 | Download |
|
J730KKKU2BSD5
Feature update
|
2 | KTC | 8.1 |
2019-04-30 | Download |
|
J730KKKU2BSA1
Feature update
|
2 | KTC | 8.1 |
2019-01-21 | Download |
|
J730KKKU2BSA1
Feature update
|
2 | KTC | 8.1 |
2019-01-10 | Download |
|
J730KKKU2BRJ8
Feature update
|
2 | KTC | 8.1 |
2018-10-23 | Download |
|
J730KKKU2ARF1
Feature update
|
2 | KTC | 7 |
2018-06-25 | Download |
|
J730KKKU2ARF1
Feature update
|
2 | KTC | 7 |
2018-06-25 | Download |
|
J730KKKU2ARD1
Feature update
|
2 | KTC | 7 |
2018-04-05 | Download |
|
J730KKKU2ARD1
Feature update
|
2 | KTC | 7 |
2018-04-05 | Download |
|
J730KKKU1AQL3
Feature update
|
1 | KTC | 7 |
2017-12-27 | Download |
|
J730KKKU1AQL3
Feature update
|
1 | KTC | 7 |
2017-12-27 | Download |
|
J730KKKU1AQI2
Feature update
|
1 | KTC | 7 |
2017-09-15 | Download |
|
J730KKKU1AQG1
Feature update
|
1 | KTC | 7 |
2017-07-12 | Download |
How to Flash SM-J730K Firmware
Put the Samsung Galaxy J7 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 5 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.