TUTORIAL: Downgrade Samsung Galaxy S5 from 5.0 to 4.4 KitKat

[ironass]

OK and KNOX? Will be 0x0 or 1? TnX

Flashing stock Samsung firmware will not change your Knox flag.

WARNING! By downgrading to KitKat, you will no longer be covered by the last 9 months security updates in the Lollipop releases, for such things as the Stagefright exploit, to name but one.

 

[Mattte]

Yes i know, last MOT Lolipop FW has Stagefright fix but this last version of FW is really CRAP. Stock SMS/MMS app is sometimes opening 2-3 seconds... everything is very laggy... Or if i try other stock FW for Slovenian region with other CSC?

 

[ironass]

Yes i know, last MOT Lolipop FW has Stagefright fix but this last version of FW is really CRAP. Stock SMS/MMS app is sometimes opening 2-3 seconds... everything is very laggy... Or if i try other stock FW for Slovenian region with other CSC?

You could try wiping the cache partition or even do a FULL WIPE+FACTORY DATA RESET as per the instructions in S5 Lollipop Update Problems - Dummies Guide

 

[Mattte]

Ironass, i already make this all... but nothing, same ****!

 

[ironass]

Ironass, i already make this all... but nothing, same ****!

In that case, as per the guide, re-flash your Lollipop firmware.

 

[Mattte]

Thank you, i will try in next days!

 

[ironass]

Thank you, i will try in next days!

Model SM-G900F
Model name GALAXY S5
Country Slovenia (Mobitel)
Version Android 5.0
Changelist 5508620
Build date Fri, 04 Sep 2015 00:10:44 +0000
Product code MOT
PDA G900FXXU1BOI3
CSC G900FMOT1BOH1

 

[Mattte]

This FW i have now installed and its lagggy!

 

[ironass]

This FW i have now installed and its lagggy!

That is why I suggested that you re-flash the firmware. In case you had a bad update. See my post #325.

 

[Mattte]

Hmmm ok, than i will maybe reflash Lollipop. But... i have no errors or something else in this FW... just slow and lagy...

 

[ironass]

Hmmm ok, than i will maybe reflash Lollipop. But... i have no errors or something else in this FW... just slow and lagy...

Do you have any of the following installed...

Apps that auto start or run in the background

1. Facebook

2. BlackBerry Messenger

3. 8 Ball Pool

4. Instagram

5. Messenger

6. WeChat

7. Facebook Pages Manager

8. Oovoo Video Call Text & Voice

9. KakaoTalk Free Calls & Text

10. Vine


Apps that are initiated by the user

1. Spotify

2. Amazon Kindle

3. Line Free Calls & Messages

4. Samsung WatchOn Video

5. Snapchat

6. Netflix

7. SoundCloud Music & Audio

8. CleanMaster Speed Booster

9. Tumblr

10. Picsart Photo Studio

 

[Mattte]

No, nothing from this list and all bloatware i have "disabled" in app manager! I have just nova launcher, and some apps but this apps i have already on S2 S3 S4 and on other FWs on S5. I tried too deinstall some this apps but its not problem in apps... i think problem is in this last MOT FW.

 

[sayf777]

Hey ironass hope you can help me I've been using G900FXXU1ANG2 as well as tried :

G900FXXU1ANE2
G900FOJV1ANE1

Both above are 4.4.2.

I was wondering if I use any of the builds below (there are all for G900F and my carrier branded XFM (South African) phone and are listed in order of build date according to sammobile.

G900FXXU1BOE5
G900FOJV1BOF1

G900FXXU1BOJ1
G900FOJV1BOF1

G900FXXU1BOJ1
G900FOJV1BOF1

Will I be able to odin back to ANE2 (for rooting purposes without tripping KNOX for example) without having any issues like loosing my imei or tripping KNOX etc? Will the bootloader not prevent me from downgrading to 4.4.2 from any of the above 5.0.

Thanks

 

[ironass]

Hey ironass hope you can help me I've been using G900FXXU1ANG2 as well as tried :

G900FXXU1ANE2
G900FOJV1ANE1

Both above are 4.4.2.

I was wondering if I use any of the builds below (there are all for G900F and my carrier branded XFM (South African) phone and are listed in order of build date according to sammobile.

G900FXXU1BOE5
G900FOJV1BOF1

G900FXXU1BOJ1
G900FOJV1BOF1

G900FXXU1BOJ1
G900FOJV1BOF1

Will I be able to odin back to ANE2 (for rooting purposes without tripping KNOX for example) without having any issues like loosing my imei or tripping KNOX etc? Will the bootloader not prevent me from downgrading to 4.4.2 from any of the above 5.0.

Thanks

No problem on the international models with upgrading/downgrading but rooting will now trip the Knox flag.

 

[sayf777]

No problem on the international models with upgrading/downgrading but rooting will now trip the Knox flag.

Thanks for the reply. So even if I go back to the ANE2 4.4.2 after being on 5.0 it will still trip KNOX if I try to root even though it doesn't now?

Posted via the Android Central App

 

[ironass]

Thanks for the reply. So even if I go back to the ANE2 4.4.2 after being on 5.0 it will still trip KNOX if I try to root even though it doesn't now?

Posted via the Android Central App

Do you mean that you are currently on rooted on 4.4.2 and want to flash 5.0 and then root it? That will permanently trip your Knox flag. If you do not root it, it won't.

 

[sayf777]

Sorry what I mean is If I decide to go back to the root able 4.4.2 can I still root the original way I used to root that doesn't trip KNOX?

Posted via the Android Central App

 

[ironass]

Sorry what I mean is If I decide to go back to the root able 4.4.2 can I still root the original way I used to root that doesn't trip KNOX?

Posted via the Android Central App

Gotcha... I think! You are rooted on 4.4.2. You want to unroot and go to Android 5.0. Then, without rooting, return to Android 4.4.2 and re-root without tripping Knox. That should be fine. Can I ask why you would want to do that?

 

[sayf777]

Appreciate your responses.
What I mean is if I really dislike 5.0 then I'd like to option to go back to 4.4.2 and have the potential to root.

As I have been on 5.0 before on a Note 3 and for some reason couldn't stand it compared to kit kat.

Posted via the Android Central App

 

[Mattte]

One more quesion ironass, its possible to change CSC (without original Samsung service) on my stock FW? TnX