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
Hi everybody,
i recently moved from a SGS2 to the s5 mini as many of you i'm disappointed for the lack of development/projects/enthusiasm but over all i'm frustrated with the root procedures because every procedure trigger knox
i was reading this thread http://forum.xda-developers.com/galaxy-note-3/general/root-root-xxufnf4-stock-firmware-knox-t2840150 and i think that MAY be a solution for our devices.
the principle is simple, make a downgrade of kernel (3.4.0) after this version towelroot exploit is patched
but i couldn't any official kernel with this version for our devices , i'm guessing the device was released with a newer version of the kernel > 3.4.0 i didn't checked.
i know that the "no supported device" on towelroot can be easy fixed editing some string values.
the big question assuming that our devices doesn't have a kernel version 3.4.0 available is can we port another device kernel?
Sorry for my bag English,
Regards from Uruguay
Any news on this matter?
Not possible!
It seems like there is 50 ways to root these phones and none seem to specifically say my phone so,....
AT&T Samsung-SM-G900A
Android V 4.42
Kernel 3.4.0-2178781
Build Version KOT49H.G900AUCU2ANG3
What is the best/safest way to root this device currently?
Thanks
For AT&T US Samsung Galaxy S6, what is the most recent bootloader / kernel version that we have a full crack for, if any? What is the most recent version that we can root untethered? I already know about the most recent version that can only root tethered, although we can discuss that here too.
Hello,
I have an F8132 with the build 41.3.A.2.149 under Android 8.0.0. My bootloader can be unlocked (but is not).
I'm pretty new to xda and I've browse the forum but the latest guide to root this phone are from 2016 and not for this version.
So is there a new way to root this phone available or can you give me a link to root this version of the F8132 ?
With me having past experience with Sony devices. You can't just flash magisk using a recovery of choice and boom. Sadly, Sony thought of this. You will either need a modded version of stock or a custom kernel due stock with rooting unlocked
Existenz Oreo for example has this unlocked and extra customisation