[Guide] Return to Stock from Original CWM Nandroid Backup

---

This guide is for those that require to return COMPLETLEY to stock (out of the box) and your firmware version is not yet available for download.

You must be; rooted, CWM Recovery and have an original nandroid backup (made after first root, and before flashing any custom ROM or non-regional firmware other than recovery or modem)

Australian Optus Nandroid :

* madmattoz@XDA has been kind enough to upload here
* You will need to Triangle Away, so begin at step #1
* I have not personally tested this nandroid, only my own

Australian Vodafone Nandroid :

* 7tOny4@XDA has been kind enough to upload here
* You may need to Triangle Away, so begin at step #1
* Again, I have not personally tested this nandroid, only my own

Modem & Stock Recovery

* Not backup by CWM, thus you may need to restore your original

Modem Collection :

* [REF] Galaxy S3 Modem / Radio Collection (I9300 & I9300T ONLY) CWM & Odin Flashable

Android System Recovery 3e :

* CWM_Stock_I9300_Recovery.zip attached
* Stock recovery is the SAME between I9300 or I9300T versions


[Guide] Return to Stock from Original CWM Backup - No firmware released for download

Requirements:

1. Have a nandroid backup of your original stock firmware
2. Root & CWM Recovery
3. Triangle Away app
4. SU-BusyBox-CWM_Manager-Uninstaller.zip (wipes SU binary, SuperUser, BusyBox and CWM Manager v3.50/3.55/3.60)
5. CWM_I9300_Stock_Recovery.zip
6. CheckFus Downloader app to check Product Code (SGS2 dialer code *2767*4387264636# does not work)
7. CWM flashable modem.zip (if not original baseband version)


METHOD:

1. Use Triangle Away app to reset binary download counter
2. Boot into CWM Recovery
3. Restore "original" nandroid backup (ensure the name has not been modified or you may experience md5 mismatch)
4. Reboot & check for and uninstall any remaining User apps that require SU
5. Boot in CWM Recovery
6. Flash modem.zip (only if baseband is not original)

If you did not Triangle Away before making the original backup, your binary flash counter may not be restored as zero, so reboot and reset before proceeding to step#7

7. Flash SU-BusyBox-CWM_Manager-Uninstaller.zip
8. Flash CWM_I9300_Stock_Recovery.zip
9. Factory reset
10. Reboot system
11. Check settings > about device > status > device status > scanning............... Normal (This may take a few minutes)
12. Sign into Google Play & install CheckFus app. Product code should be correct


If returning for warranty:

13. Delete all contents of internal sdcard "phone"
14. Factory reset again and power off

All tested on my own device

Hope this helps some Hit THANKS if it has

Added Disclaimer: All your own risk. I am not responsible for anything you may try here. I didn't make you do it, blah blah blah

Thanks for this, really appreciate it!

I found a typo in one of your sentences:

Baseband I9300DTULE6 can be found here:

I really think you meant I9300TDULE6

Originally Posted by kelvinyap9

Thanks for this, really appreciate it!

I found a type in one of you sentences:



I really think you meant I9300TDULE6

Correcting...
Cheers

Sent from my GT-I9300T using xda premium

Anyway, I'm at the process of getting ready to do a NANDROID backup (already put an SD card in the phone).

As I'm aware, the stock recovery doesn't do NANDROID backups. Would I need to flash CWM (Chainfire one) via ODIN before doing so?

UPDATE: Never mind, NANDROID is a CWM feature x)

Originally Posted by kelvinyap9

Anyway, I'm at the process of getting ready to do a NANDROID backup (already put an SD card in the phone).

As I'm aware, the stock recovery doesn't do NANDROID backups. Would I need to flash CWM (Chainfire one) via ODIN before doing so?

Recommend it. Just follow Chainfire guide exactly.

Copy the backup found in clockworkmod folder to PC for safe keeping.

Once rooted, search for EFS Backup Pro and copy the backup to PC too. CWM will not back this up either. If this every becomes corrupted (and no backup) = iPod (no cellular network)

Sent from my GT-I9300T using xda premium

Thanks man, that's what I was heading towards but you beat me to it.

Sent from my GT-I9300T using xda premium

Originally Posted by Lonski

Thanks man, that's what I was heading towards but you beat me to it.

Sent from my GT-I9300T using xda premium

Yeah, took a "little" bit of flashing just to prove the method works. Anyone following the steps and links to the appropriate guides shouldn't have any trouble.

Had other ideas such as how to dump your firmware and re-package into Odin flashable .tar file . This took a while, so maybe I'll add the other method in future. Wife is on my case

Sent from my GT-I9300T using xda premium

Rooted my phone,made a nandroid backup,flashed cm9,restored using original nandoid backup then used triangleaway to reset counter which shows 0,flashed a custom kernel on stock rom.Baseband has reverted to normal but device status showing modified.How to change it to normal?

Sent from my G-I9300 using Tapatalk 2

Originally Posted by rock2702

........flashed a custom kernel on stock rom.Baseband has reverted to normal but device status showing modified.How to change it to normal?

You didn't follow the guide did you?

Your firmware is now "modified" from the original (out of the box) having flashed a custom kernel. Also, depending on the flash method (Odin?), your counter most likely increased again

If you want completely back to original (out of the box state) firmware, follow the guide in FULL >> Redo steps 1-9 (or 1-11)

Obviously, if your official firmware is available for download somewhere, this guide becomes redundant. Flashing a complete official firmware will remove the modified status, but yours isn't completely official/stock now is it?

But, if this is want you want

This guide is for those that require to return COMPLETLEY to stock (out of the box) and your firmware version is not yet available for download.

, follow the guide step-by-step and it will work!

To avoid any further confusion I've added to the OP......... COMPLETLEY to stock (out of the box).......

Actually i did all this before you posted this thread.I used triangle away and the official counter is showing 0.My firmware is not up for download still but i made the nandroid backup before flashing cm9.
I rooted my phone using cf root by chainfire and then flashed cm9 using cwm.But then i returned to stock using my backup,then flashed a custom kernel using mobile odin pro.If i flash my stock kernel will my device status be normal again?

Also wanted to ask if the efs backup pro is an android app?I dloaded the zip on my cell as i dont have pc now,should i flash the zip using cwm to get efs pro app?

Sent from my GT-I9300 using Tapatalk 2