Different Rom Base Whithout Tdb

[thaimax]

I have already written on the thread Multi 5.2.6, if you want you can see there. By the way my experience is this:
I had the V5 4.5.12 Miui.it on sys 1 and V6 Smiui 5.1.30 in sys 2 whit CWM 6.0.5.1 and TDB enabled and I wanted to flash Multi xiaomi.eu rom over sMiui maintaining V5 Miui Italy; so I followed the advice of a member who suggested to :
"try flash multi zip whit cwm to overwrite smiui, just to try, before flash via fastboot metod, if it doesn't work".
I did it two times but the screen was stuck on mi logo first time and black screen the second time.
So out of curiosity before flash via fastboot img. tryed via Updater from sys 1 and it worked.
1) Put in the phone Multi 5.1.30
2) Reboot to sys 1 (V5 miui.it 4.12.5).
3) Trough Updater selected installation package and flash Multi 5.1.30.
4) Restarted in the new version.
5) I have not made any wipe.
I was then in sys 2 with your rom instead of sMiui (of course now I have the stock recovery).
By back up app I restored my data ( had excluded as recommended system settings ) I then tried to switch from one sys to another whitout any problems, both rom work well.
With the same procedure I then updated to Multi 5.2.6 and still everything seem work, both V5 and V6.

I always knew that whithout TDB you can have only same rom and different release, but not different base rom (I had already flash via fastboot way my phone many times).
Then I chose this way just to see what was going on, before flash fastboot rom,( since via cwm had not worked). and it worked.This is what surprised me using this method.
In the end, I still do not understand how it is possible but it works, or at least I do not see problems, I can call and all applications seem to work properly in both systems while having the V5 and V6 in one another, without cwm and tdb.
Now you tell me how it's possible that now I have two different base rom whithout cwm and tdb enabled
If you want to answer me will make me happy

 

[thaimax]

Flashed back cwm 6.0.5.1 via Updater I got back Nandroid of both system I did before, so now still v5 in sys 1 and back to sMiui in sys 2, then restore V5 to sys 2 and sMiui to sys 1

 

[thaimax]

I can not believe! No one who gives an answer? Yet I always read that everyone said it was impossible to have two rom with different basis without installing CWM and enable TDB!
Ok I don't know how! but instead it's possible!!!!! Just try it !!!!!

 

[davfiala]

You were lucky, no more, no less. Generally it's not possible, but there could be exceptions.

 

[thaimax]

Thanks for answer, only you say there could be exception and sure this is one! what surprised me more than this is that very experienced users sayd it couldn't be impossible without having tried the procedure.
The only thing that I noticed is that the internal memory available (I had not installed any app except playstore) in sys with V5 was decreased by more than 3 Gb to 2.57, and in the sys with V6 multi from about 3, 27 to less than 3, so I flashed the fastboot SE 5.1.30 and later updated both sys with Multi 5.2.6 and now is 3.47Gb and now whit 5.2.13 3.43Gb

 

[thaimax]

By the way I think it's no matter of luckiness but a matter of way to get it.
No one has ever talked about this possibility

 

[M1cha]

what u're asking is like "How can I drink ẃater without water?".
If you want Dualboot you need TDB.(or better wait for G4A).

 

[thaimax]

what u're asking is like "How can I drink ẃater without water?".
If you want Dualboot you need TDB.(or better wait for G4A).

i'm just asking why everybody say it's not possibile to have two differente based rom whithout Tdb while instead it's possible!!!!
Try it!
P.S. Off course like I wrote above I started whit V5 in sys 1 and sMiui in sys 2 whit CWM 6.0.5.1 and TDB enabled, but after flashed via Updater from sys 1 the installation package xiaomi.eu Multi 5.1.30
I had Mi recovery stock and dualboot whithout TDB (switched between the systems whithout any problem, both Rom V5 and V6 worked well) and then update to 5.2.6 and 5.2.13 always via Updater and still both sys worked well.
never passed via fastboot first before flash Multi xiaomi.eu as described, neither did any wipe too.

 

[M1cha]

i'm just asking why everybody say it's not possibile to have two differente based rom whithout Tdb while instead it's possible!!!!
Try it!
P.S. Off course like I wrote above I started whit V5 in sys 1 and sMiui in sys 2 whit CWM 6.0.5.1 and TDB enabled, but after flashed via Updater from sys 1 the installation package xiaomi.eu Multi 5.1.30
I had Mi recovery stock and dualboot whithout TDB (switched between the systems whithout any problem, both Rom V5 and V6 worked well) and then update to 5.2.6 and 5.2.13 always via Updater and still both sys worked well.

That only works with very similar ROM's and it can render your system unbootable anytime because of database updates.

 

[thaimax]

That only works with very similar ROM's and it can render your system unbootable anytime because of database updates.

Finally an answer that confirms the possibility of having on MI2s the V6 without going through the flash via fastboot and furthermore at the same time have V5 in the other system having only initially Cwm and the TDB enabled and then make the next update ( via Updater app ) with Stock Recovery!
I wish all those who said that it was impossible, learn modding from you.
Anyway you mean that the system might not reboot whit next updates?

 

[M1cha]

Anyway you mean that the system might not reboot whit next updates?

Yes.

 

[thaimax]

Ok, not wanting to wait for that to happen I have already flashed the img file. and update to multi xiaomi.eu in both sistems. But now I would go back to having the v5 in a system and your multi v6 in the other one. Can you tell me what steps I need to do and if you can do it using the recovery stock ? Promise I will not bother you more about this topic.
Thank you very much Micha

 

[M1cha]

that doesn't work because v5 uses Android 4.1 and v6 uses Android 4.4

 

[mehdoux]

Hi,

@thaimax : Can you tell me why are you trying EVERYTHING to avoid using a custom recovery ? With CWM and TDB enabled, you'll have the possibility to install Miuiv5 in sys1 and Miuiv6 in sys2 and you won't encounter ANY problem by updating both systems.

 

[thaimax]

Hi,

@thaimax : Can you tell me why are you trying EVERYTHING to avoid using a custom recovery ? With CWM and TDB enabled, you'll have the possibility to install Miuiv5 in sys1 and Miuiv6 in sys2 and you won't encounter ANY problem by updating both systems.

ok now what steps I have to follow from v6 and stock recovery to get back cwm and v5 plus v6?

 

[mehdoux]

Hi,

1- Install Mi2s Fastboot drivers included in this software (yes i know, it is in chinese, but just have click on next next next, and you don't need the program itself, just the drivvers it installs) : http://miuiandroid.com/windows/

2- Install adb and fastboot drivers using this tool : http://forum.xda-developers.com/showthread.php?t=2588979

Then connect your phone into fastboot mode (phone off: press volume down + power key until you see fastboot image)
And flash the .img of the CWM recovery via fastboot : http://xiaomi.eu/community/threads/2014-07-08-clockworkmod-recovery-6-0-5-0.19686/
Extract the .img file and rename it as recovery.img and then place it in the root of your C:\ drive.

Steps : - open cmd as admin
- write : fastboot erase recovery
- write : fastboot flash recovery C:\recovery.img

Then when it's finished, take out the battery of your Mi2s and restart it directly to the recovery (power +volume up)
Once in recovery, go to advanced, and select again reboot recovery (to avoid stock recovery auto-restore)
Then, enable TDB in recovery and flash the ROM you want in sys1 and sys2. They can be different and you won't encounter any issue. Just avoid flashing lollipop ROMs because they are not fully compatible with TDB which be replaced by Grub4Android.

 

[thaimax]

where is the img. of the cwm? i think it's too difficult for me

 

[mehdoux]

Just inside the zip file from the link I gave you of the CWM thread. Don't worry, it's not too difficult.

 

[thaimax]

Just flashed back miui v5 fastboot developer and then update to v5 miui.it whit my old mi2s fastboot drivers, adb and fastboot drivers I had already before.
Then I tryed to flash cwm 6.0.5.1 via recovery after renamed it to update.zip, but as I had done another time the update has not been successful so I did it via updater as I did once and now i have Cwm and TDB enabled again.
Anyway after this I followed step 1 and 2 of your guide, then extract the file img. and rename it and put it in the root of C:\ drive. and opened cdm as administrator. at this point I stop, I wanted just to try till this step because as I told you got Cwm already, I think that I should not do this anymore, do I?
​

 

[mehdoux]

These steps were only valid if you were coming from Miui v6. Since you came back to v5, renaming the zip as update.zip is enough. Anyway, happy to see that you successfully installed CWM and enabled TDB. Now just flash the ROMs you like!

 

[thaimax]

ok, so next time I'll be whit miui 6 I'll follow your guide. what zip I have to rename, v6? I want keep v5 and flash v6

 

[thaimax]

what u're asking is like "How can I drink ẃater without water?".
If you want Dualboot you need TDB.(or better wait for G4A).

when we'll have G4A?

 

[M1cha]

when we'll have G4A?

Probably in March.

 

[mehdoux]

ok, so next time I'll be whit miui 6 I'll follow your guide. what zip I have to rename, v6? I want keep v5 and flash v6

Hi,

No you didn't understand what I wrote.
When you are on v5 and you want to install CWM, the only thing you have to do is to download the zip file of the recovery made by @M1cha, you just have to rename it as update.zip and install it through the stock recovery. Then, once you reboot the phone, you'll see that CWM has replaced stock recovery. That's as easy as that.
But nervermind, you have CWM now. Be sure that you have TDB enabled in advanced settings, and then enjoy dual systems !

My advice : Do not install official v6 in sys2, install an optimized version (sMiui) : http://xiaomi.eu/community/threads/...initd-tdb-multilang-zipalign-cputweaks.25985/

Then in advanced into the recovery, you can choose active system (1 or 2) to boot on the system you want.

 

[thaimax]

yes i did it but whit cwm 6.0.5.1, rename it as update.zip and tryed install through stock recovery, but I couldn't, therefore I did via Updater app.
As You can see in the first post I had already sMiui in sys 2 and v5 in sys before messed up trying flash v6 multi xiaomi.eu.
so my question is still how I can have v5 and v6 xiaomi.eu jointly?
I thank you so much for your advice and guides, but up to this point there I was already arrived in the past, the only thing I missed was to overwrite the multi on smiui, but could not.