NEW Instructions: Dated July 10th 2018
Should work on all Snapdragon USA/Canada models (ATT , verizon, sprint, tmobile tc) Tested on S8+ and S8, should work on Note 8 and S9 if you have right files.
Keep your Jio SIM in the phone all along.
Check your Bootloader version first (Download matching files only)
1.Back up your data using Samsung smart switch or any other means (save whatsapp chats to google in settings)
2.Flash matching stock firmware (On unzipping stock FW, you'll get AP, CP,BL and CSC files. Use Odin to flash them) (Don't flash User data file if it's there in extracted files)
Recommended Odin
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
S8+ models
CRE2 for BL version 1, 2,3 or
CRE9 for BL 4
S8 models
CRE2 for BL 1,2,3 or
CRE9 for BL4
Note 8 models
BL 1,2,3 or
CRE1 for BL4
3. Download sec_omc.zip specific to your model
INS OMC for s8+ or
For Note 8 or
For S8
4. Download and unzip combination rom (You'll get a file ending in tar.md5) (Matching file only)
For s8+ models or
Mirror
For s8 Models
Note 8 combination files or
Mirror or
BL 4 version
5. Open Odin (princecomsy version) and click on AP, choose the file you extracted in step 4
6. Put your phone in download mode (hold the Power button, Volume Down button, and the Bixby button until Download mode screen is seen. Press Vol up to confirm).
7.Connect your phone to PC. You should see "Added" in log of Odin and see a com port appearing on top left.
8) Click on start tab. If everything goes well, you'll see "PASS" on top left. Let it boot to Factory binary once.
9) Boot your phone to recovery mode (hold the Power button, Volume up button, and the Bixby button until samsung screen is seen).
10) Install "
minimal ADB fastboot" program on PC, Copy the sec_omc.zip to your minimal ADB folder on computer (under program files on C drive).
Double click cmd-here.exe in that folder.
11) Connect your phone to your computer with your USB cable and in phone select Apply update via ADB in recovery screen (Navigate with vol bottons and select with Power btn).
12) On ADB window on PC type "adb devices" without quotes. Next line should show a device attached
If seen, type "adb sideload sec_omc.zip" without qoutes. It'll start transferring the file.. check mobile screen it'll install itself. (you might see some errors)
13) Once your phone reboots, you will see an "IME" button on the bottom). Tap on it and type *#243203855#
14) On resulting window, if you see INS in the list, click over it and click install and select full customisation.
15 Your phone will reboot to the 'factory binary homescreen', go to ADB on your computer and type in "adb shell".
16) Type in echo "INS" > /efs/imei/mps_code.dat (Please make note of the space between " and > and /)
You won't get any confirmation.
17) Now flash the full Stock firmware matching your bootloader via ODIN (BL, AP, CP, CSC files (not home csc)
18) After the flashing, phone will reboot. Don't setup any accounts yet. Boot to recovery and select "apply update via ADB" (Like step 7)
19) Sideload the CSC zip (similar to step 8) and let it reboot.
20) On reboot, you should see INS/INS/xxx under software info (xxx is your factory csc version) and VoLTE icon should appear.
Possible glitches
1. Phone app force closing
Reflash AP BL CP only excluding CSC
Install OMC zip via adb
2. Sprint OMADM app needs to be removed to avoid annoying notification or change notifications to low priority
To remove via ADB, turn on usb debugging
type in
adb shell
you should see a dollar sign.
next type in
pm uninstall -k --user 0 com.sec.omadmspr
it should say success.
If you want to extract OMC zip for a different model device, watch this video.
https://youtu.be/giD7nP4Oue4
IGNORE the following
Old instructions with old files
Thanks to
@jrkruse for the idea of flashing CSC zip from exynos to snapdragon
@Mike15678 for carrier switch thread
@chetan180 for trying carrier switch to INS
@anarasgarli for combination files links
