Database Develop

[INFO]WARNING: Android 5.0 Bootloader and Kitkat Compatibility

Android 5.0 (Lollipop) Bootloader and KitKat Compatibility​
Everyone wants Lollipop, however it is worth considering some of the possible consequences of upgrading via OTA update.​
Bootloader:
A new Bootloader (BL) will almost certainly be included in the OTA update. It is also very likely no KitKat Kernel, stock or custom will be able to boot properly with the 5.0 BL. Perhaps the Kernel DEVs can find a workaround.
Root: (ETA: Unknown)
It may take some time to gain root access on Lolipop as on other devices this has required a custom Kernel. A custom kernel itself may require kernel sources to be released - something that has taken weeks / months in the past.
Xposed Framework:
Developer has said he will wait for CyanogenMod based on Lollipop before properly starting development of an ART version of Xposed. CM12 may take a few weeks to release. Expect to do without Xposed for at least a month, probably longer since root is also required (see above.)
Custom Recovery:
This has not been an issue before, but it is always possible a new Bootloader could break compatibility with existing Custom Recoveries. Obviously, you would not be able to restore a CWM / TWRP backup without a functional custom recovery; but even then, it is unlikely you will be able to boot your KitKat backup.
Custom ROMs:
This is another area that could be affected by a new Bootloader. It is unknown if existing custom ROMs will require new Kernels / system changes in order to work with the new BL - something that could take days, weeks or months.
Performance:
Currently the performance difference between KitKat and Lollipop is unknown. If the first release of Lollipop for Android One has performance issues, you may be unable to revert back to stock KitKat.​Possible solution:
Wait for a flashable zip [NOT OTA Update zip] of Stock Android One Lollipop ROM - this would mean your Bootloader remains at it's current version and potentially allowing you to change 'back and forth' between Stock KitKat and Stock Lollipop. However, it is currently unknown if the newer BL is a requirement for Android 5.0 Kernels.
This is taken from the Moto G thread and all credits goes to @lost101.The sole motive of this is to create awareness about the new bootloader included in 5.0

Thanks For The Info @DC07 :highfive:

Thanks For The Information Bruda !!

This thing is only for device like motorola, samsung etc.. As I never saw same thing for nexus.. Motorola does not allow to downgrade so they update bootloader in every android version update.. I dont think it will be same for sprout

Let it arrive ,no point in discussions on thongs that are not confirmed
Sent from my A1 using XDA Free mobile app

coolkoushik07 said:
This thing is only for device like motorola, samsung etc.. As I never saw same thing for nexus.. Motorola does not allow to downgrade so they update bootloader in every android version update.. I dont think it will be same for sprout
Click to expand...
Click to collapse
Nope. The bootloader was updated on my nexus 7 flo for the 4.4.2 OTA. Since this update is much bigger I think we'll have a bootloader update too.

littleromeo said:
Nope. The bootloader was updated on my nexus 7 flo for the 4.4.2 OTA. Since this update is much bigger I think we'll have a bootloader update too.
Click to expand...
Click to collapse
Does it stop u from downgrading to any previous version?
Sent from my Xperia Z1 Compact

yes..
coolkoushik07 said:
Does it stop u from downgrading to any previous version?
Sent from my Xperia Z1 Compact
Click to expand...
Click to collapse
yes... once u update boot loader , you can never even think of downgrading ..
experience :/

startracker said:
Is varun working with lollipop
Sent from my A1 using XDA Free mobile app
Click to expand...
Click to collapse
Yes,according to the ss posted in the fb group.But this doesn't mean everyone starts spamming his pm.
Let him take his time.This will make our lollipops taste more sweet

doubts about lollipop arise

[Q] Port Motorola apps to other ROMs

Hello all,
Is there any possible way to port the motorola apps (Moto Display, Camera etc.) to a Moto X running AOSP based ROM like CM?
The Source of the Moto X, doesn't come the sources of this apps?
Thanks

You would need the framework from Motorola's firmware. Besides, the stock firmware is far more stable than any AOSP-based ROM. What does CM so for you that Xposed can't?

I think the problem here is the 5.0 update and the switch to art. That means no xposed. So if somebody mixed cm customization with stock stability and functions, we'd have a real winner.
Sent from my XT1060 using XDA Free mobile app

nhizzat said:
You would need the framework from Motorola's firmware. Besides, the stock firmware is far more stable than any AOSP-based ROM. What does CM so for you that Xposed can't?
Click to expand...
Click to collapse
Actually I can have all i need with xposed, but someday we'll not receive anymore updates(maybe in a year?), and this phone I think will last for more 3 years, I wish to have latest Android , but with our unique features.

[Q] How to return to stock

Well, I have a lollipop custom rom on my moto x (cyanhacker v3) his version is 5.0.2, my question is, how can i return to 4.4.4 stock? is it posible? if not can i flash the stock recovery and flash an official lollipop ota?

helloimseba311 said:
Well, I have a lollipop custom rom on my moto x (cyanhacker v3) his version is 5.0.2, my question is, how can i return to 4.4.4 stock? is it posible? if not can i flash the stock recovery and flash an official lollipop ota?
Click to expand...
Click to collapse
As long as your custom rom did not touch GPT.BIN or the components of motoboot.img, you can flash back to whatever stock Moto rom you had on there before running the custom.
There are two links in my signature... Use them.. one is on the risks of downgrading (to make sure what is safe for your phone). And the other is for preparing for OTA update (also has info on returning to stock)

KidJoe said:
As long as your custom rom did not touch GPT.BIN or the components of motoboot.img, you can flash back to whatever stock Moto rom you had on there before running the custom.
There are two links in my signature... Use them.. one is on the risks of downgrading (to make sure what is safe for your phone). And the other is for preparing for OTA update (also has info on returning to stock)
Click to expand...
Click to collapse
I for example flashed a custom rom based on cm 12 from kitkat (nexus experience rom), does cm 12 upgrade the bootloader? is it safe to flash the stock 4.4.4 rom?

KidJoe said:
As long as your custom rom did not touch GPT.BIN or the components of motoboot.img, you can flash back to whatever stock Moto rom you had on there before running the custom.
There are two links in my signature... Use them.. one is on the risks of downgrading (to make sure what is safe for your phone). And the other is for preparing for OTA update (also has info on returning to stock)
Click to expand...
Click to collapse
Thanks, how can I see if my rom touched gpt.bin or motoboot.img?
Enviado desde mi Moto X mediante Tapatalk
Add: It wasnt the first lollipop rom i flashed, because the others had so many FC and bugs, I have all these roms on my pc, does it affect?

Cristian314 said:
I for example flashed a custom rom based on cm 12 from kitkat (nexus experience rom), does cm 12 upgrade the bootloader? is it safe to flash the stock 4.4.4 rom?
Click to expand...
Click to collapse
helloimseba311 said:
Thanks, how can I see if my rom touched gpt.bin or motoboot.img?
Enviado desde mi Moto X mediante Tapatalk
Add: It wasnt the first lollipop rom i flashed, because the others had so many FC and bugs, I have all these roms on my pc, does it affect?
Click to expand...
Click to collapse
As far as I know, CM11/CM12 and AOSP based roms do not touch anything by /SYSTEM... (so GPT.BIN, motoboot.com or its components, modems, etc do not get touched by CM).
IF you no longer have a stock rom on your phone, then the only way to tell what you might have had on your phone is by looking at the bootloader. Its discussed in the thread link in my signature for the Warning on downgrading.

KidJoe said:
As far as I know, CM11/CM12 and AOSP based roms do not touch anything by /SYSTEM... (so GPT.BIN, motoboot.com or its components, modems, etc do not get touched by CM).
IF you no longer have a stock rom on your phone, then the only way to tell what you might have had on your phone is by looking at the bootloader. Its discussed in the thread link in my signature for the Warning on downgrading.
Click to expand...
Click to collapse
Ok thank you!
Enviado desde mi Moto X mediante Tapatalk

How can you flash several cm based custom roms before learning how to return your device back to stock? Learning how to return to stock should be the first thing you learn before modifying your software.

Travisdroidx2 said:
How can you flash several cm based custom roms before learning how to return your device back to stock? Learning how to return to stock should be the first thing you learn before modifying your software.
Click to expand...
Click to collapse
It doesnt matter yet really, it is done and nothing is going to reverse the time.
I like my rom and i dont want to change, but is good to know.
Thanks for your answer
Enviado desde mi Moto X mediante Tapatalk

[Q] Possible to downgrade XT1072(Thea) to KitKat/CM11?

Hi,
The Bluetooth A2DP stuttering bug on Lollipop is unacceptable, and I have heard that KitKat users did not have the same problem.
Is there a compatible KitKat 4.4.4 factory image that I can use to downgrade my XT1072?
Cheers,
Sunkai.

Having looked into ROMs a bit further, I am now targeting getting CM11 installed on my Thea device.
This would not only eliminate the Bluetooth A2DP stuttering, but also remove the infuriating "increasing ringtone volume" setting that is baked into the factory image by Motorola.
Has anyone got CM11 running on their Thea device? I couldn't find an official build on the CyanogenMod web site.

Thea was never released with KitKat as far as I know, so finding a ROM would be unlikely, tbh.
I can't recommend the AOSP build (http://forum.xda-developers.com/moto-g-2015/development/rom-android-source-project-t3141139) enough, smoother than stock, no launcher redraws and no bluetooth issues for me (I use my bluetooth speaker every day for an hour or two).
The ringtone also doesn't increase, highly recommended with TK stock Gapps, basically turning your Thea into a mini Nexus.

Thanks for the recommendation. I will trial the ROM and let you know if it has fixed my BT issue.
With system storage space being such a concern on the 8GB Thea devices, does the AOSP build's "Move To SD" function work for relocating apps?

sunka1 said:
Thanks for the recommendation. I will trial the ROM and let you know if it has fixed my BT issue.
With system storage space being such a concern on the 8GB Thea devices, does the AOSP build's "Move To SD" function work for relocating apps?
Click to expand...
Click to collapse
Yes AOSP does let you move apps, in fact I think it lets you move more of them. But as TK Gapps installs all the stock Google apps to the /system partition, I've ended up with a bit more free space on my device. Obv YMMV, but give it a go.

rickbosch said:
Thea was never released with KitKat as far as I know, so finding a ROM would be unlikely, tbh.
I can't recommend the AOSP build (http://forum.xda-developers.com/moto-g-2015/development/rom-android-source-project-t3141139) enough, smoother than stock, no launcher redraws and no bluetooth issues for me (I use my bluetooth speaker every day for an hour or two).
The ringtone also doesn't increase, highly recommended with TK stock Gapps, basically turning your Thea into a mini Nexus.
Click to expand...
Click to collapse
My initial impression is good. I have not encountered the extreme Bluetooth A2DP skipping that I experienced with the factory 5.0.2 LL image. It is unpredictable, and can take some time to manifest though, so if it does occur I'll report back here.
I wouldn't expect to get OTA updates for a custom ROM, so I assume that I will need to use TWRP to install any subsequent Android versions?
If I do this, will I lose all of my installed apps and data, as with the initial AOSP load?
Also, will I need to side load the TK stock Gapps to keep them up to date?
Thanks for your advice.

sunka1 said:
I wouldn't expect to get OTA updates for a custom ROM, so I assume that I will need to use TWRP to install any subsequent Android versions?
If I do this, will I lose all of my installed apps and data, as with the initial AOSP load?
Also, will I need to side load the TK stock Gapps to keep them up to date?
Thanks for your advice.
Click to expand...
Click to collapse
No, you won't get OTAs. You will flash updates to your phone the same way you just did, via TWRP. keep an eye on the thread for update notifications and changelogs from the devs. Don't flash different ROMs over each other without a factory reset, or a "full wipe".
When updating a ROM you will only flash the update and NOT need to factory reset, that way you retain your data. Clearing the cache partition can help with initial crashes or problems you incur afterwards.
Yes, you can load the gapps and keep them up to date if you wish, TK's generally see updates on weekends. This is however optional and totally dependent on you bandwidth availability etc.
I generally just download and reflash one gapps package. Until there is a big change in the Gapps, then I'll update mine. Check the relevant thread for more flashing instructions.
Hope it helps. Also, backups in TWRP are a good thing to have.
Sent from my Moto G 2014 LTE

sunka1 said:
Hi,
The Bluetooth A2DP stuttering bug on Lollipop is unacceptable, and I have heard that KitKat users did not have the same problem.
Is there a compatible KitKat 4.4.4 factory image that I can use to downgrade my XT1072?
Cheers,
Sunkai.
Click to expand...
Click to collapse
Maybe useful to note here, that I got my moto g 2nd gen xt1072 with kitkat loaded on it.
Bluetooth stuttering not occurring at all, it started with lollipop
So the stock kitkat rom must exist !

Can I install Lollipop or Marshmallow stock on this device? And it'd run smooth or it's better to use other ROMs?

Nothing? No ROM images?? Come on!

There is NO stock KitKat ROM for thea (XT1072,XT1077,XT1078,XT1079).
Lollipop update was a huge one with deep changes and I don't recommend downgrading a device to an earlier version that the one it was sold with.
On other devices, the bootloader is not compatible and downgrading can brick the device.
According to these reports, it seems KitKat custom roms can be installed but it is not recommended !
As Thea doesn't have any kitkat rom, I suppose you took it from titan ? (Titan = no-4G variant)
Don't forget that Thea (XT107x) is a DIFFERENT device than Titan (XT106x,I think).
It doesn't only add 4g, it has a different Soc (different processor...), a different battery. So Titan ROMs are not compatible with Thea. End of the line.
Some may work, but are not made for it.
Flashing a titan ROM on thea is just like flashing a galaxy S6 ROM onto a Sony xperia Z3. They are different devices.

Sigur Rós said:
Can I install Lollipop or Marshmallow stock on this device? And it'd run smooth or it's better to use other ROMs?
Click to expand...
Click to collapse
Yes you can. But prefer roms like Cyanogenmod it's clean you install gapps (any version you want).
It's far better than stock ones

someone has cm11 for mto g XT1078 thea ? if please have me send the link to download please

there is no stock kitkat and also no cm11 for this phone!

http://blogs-images.forbes.com/gordonkelly/files/2014/09/IMG_20140924_123904-1940x1435.jpg
So what?...

Mr.Sugo said:
http://blogs-images.forbes.com/gordonkelly/files/2014/09/IMG_20140924_123904-1940x1435.jpg
So what?...
Click to expand...
Click to collapse
This link a picture of the moto g 2nd gen without LTE
The variant without LTE can be downgraded to KitKat because it was released with KitKat.
The variant with LTE was released with lollipop and CAN'T be downgraded to KitKat.

sunka1 said:
Hi,
The Bluetooth A2DP stuttering bug on Lollipop is unacceptable, and I have heard that KitKat users did not have the same problem.
Is there a compatible KitKat 4.4.4 factory image that I can use to downgrade my XT1072?
Cheers,
Sunkai.
Click to expand...
Click to collapse
Not possible. Although Titan and Thea share the same board, bootloader restrictions and source tree changes will not allow you to boot CM11 or any KitKat code, let alone a full ROM. Try CyanogenMod 12.1 or 13 instead, although you have to unlock your bootloader and install TWRP. It has many improvements over stock Android without losing stability and even gaining some speed. Also most CM kernels for Titan will work in Thea as well. I am currently running CM12.1 snapshot and it's butter smooth with zero bugs.

Mavireck said:
There is NO stock KitKat ROM for thea (XT1072,XT1077,XT1078,XT1079).
Lollipop update was a huge one with deep changes and I don't recommend downgrading a device to an earlier version that the one it was sold with.
On other devices, the bootloader is not compatible and downgrading can brick the device.
According to these reports, it seems KitKat custom roms can be installed but it is not recommended !
As Thea doesn't have any kitkat rom, I suppose you took it from titan ? (Titan = no-4G variant)
Don't forget that Thea (XT107x) is a DIFFERENT device than Titan (XT106x,I think).
It doesn't only add 4g, it has a different Soc (different processor...), a different battery. So Titan ROMs are not compatible with Thea. End of the line.
Some may work, but are not made for it.
Flashing a titan ROM on thea is just like flashing a galaxy S6 ROM onto a Sony xperia Z3. They are different devices.
Click to expand...
Click to collapse
They are variants of the same motherboard AFAIK, same camera, same CPU and GPU and resolution, same SD unit, but on the bootloader and RIL level they are fully different. Some kernels can be cross-flashed, and even some Titan recoveries boot on Thea (although a very bad idea with zero good results) ROMs must be adapted to the full board and cannot be cross-flashed.

Well I unlocked my XT1096 Bootloader now what?

About to root, but I'd like to go up to Marshmallow. Does CM13 work on the 96? Have people started porting the Pure 2014 Marshmallow ROM over to the 96?
Thanks!

Mods, if you wouldn't mind deleting this thread, it's a bit redundant. Thanks!

Yes CM13 works. You have a few ROMs to choose from for the XT1096. Development is somewhat limited, but most I have seen support vzw network.