Stock Marshmallow downgrade to 5.1.1 - Installing TWRP?

[Guest ivanko021]

Hi,

My Marshmallow Smart Ultra 6 is very slow, battery life is bad and I can't use AUX cables. I thought I'd do a factory reset but I thought I might as well downgrade to Lollipop. I see there are bits and pieces of info on the topic scattered around the forum but no thread specifically about that. I would like to ask for help with this and I'll collate all info I've gathered here so if anyone wants to do the same in the future, they have what to use as a guide.

1. I have downloaded the UK 5.1.1 VDF-995NB01-UK09b stock ROM & recovery from the Vodafone Smart Ultra 6 stock ROMs, OTAs, and recoveries thread.

2. My phone has 6.0.1 VDF-995NB02-UK10d stock ROM with stock recovery, therefore I need to install the stock recovery for B01-UK09b

^ This is where I am stuck. I can see you can install a stock recovery with TWRP, but I need root to install TWRP, but I can't get root because I'm on stock 6.0.1.

How do I install TWRP or how do I downgrade my stock recovery so I can install the old stock UK 5.1.1 ?

 

Any help would be much appreciated! :)

 

 

[Guest nutsda]

Although I have not done this myself I believe people have success using the Turkish ROM to downgrade.

[Guest ivanko021]

1 hour ago, nutsda said:

Although I have not done this myself I believe people have success using the Turkish ROM to downgrade.

Thank you for your reply, @nutsda !

I am reluctant to install it because without having the right Recovery version. As far as I understand, I will be stuck in a boot loop if my recovery is not the right for the ROM I'm installing. Does anyone know how I can find more details about my recovery?

Many thanks! :)

[Guest Tupac28]

Hey all really need some help as im hella confused i got smart ultra 6 on 6.0.1 uk how the hell do i downgrade to 5.1.1 to be able to root nothing is clear 

[Guest tcpaulh]

Ditto.

I'm in the same boat. Anyone know how to proceed? Or are we 6.0.1 users out of luck?

[Guest yomarshmellow]

@tcpaulh I am the person that talked to you on the stock roms and recoveries forum. I have finally downgraded, rooted and installed TWRP along with a custom recovery on my device which is now running MIUI 7. I have made a tutorial on XDA, so please visit it over there.

Link to guide: https://forum.xda-developers.com/android/development/easy-guide-how-to-downgrade-root-t3849525

I hope i helped all of you. 

[Guest tcpaulh]

On 10/2/2018 at 2:36 PM, yomarshmellow said:

@tcpaulh I am the person that talked to you on the stock roms and recoveries forum. I have finally downgraded, rooted and installed TWRP along with a custom recovery on my device which is now running MIUI 7. I have made a tutorial on XDA, so please visit it over there.

Link to guide:  https://forum.xda-developers.com/android/development/easy-guide-how-to-downgrade-root-t3849525

I hope i helped all of you. 

Many thanks my friend. Great guide!

[Guest suzukibandit]

Backup anything you want too keep.Put this on your sd card.it will downgrade  6.0.1 to 5.1.1. Use your stock recovery and update from sd card. Hold power button and vol up when you power on the phone. After reboot you can pick your language.

1)http://www.mediafire.com/file/mr2mdg3oi7whw3c/update.zip/file

2) kingroot. may take a few tries.

3)install rashr from the play store

Download this twrp

4)https://androidfilehost.com/?fid=24591000424952165

Tap on your downloaded twrp. Rashr will open .Choose recovery.

All done.

Edited March 5, 2019 by suzukibandit