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[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

Success! Multirom running unlocked and rooted KK and Lollipop

Success!
I hadn't installed Lollipop on my 2012 Nexus 7 (Grouper) because of all the problems I read about but I decided to try it through using Multiboot and keeping KK 4.4.4 too. I now have Lollipop running, including most of the apps I have running in KK, without any apparent problems. I initially installed Lollipop as the secondary ROM. After Lollipop is installed as the secondary ROM, it takes a while for the boot process to complete the first time, it seems to take forever. In order to unlock and root Lollipop I had to make it the primary ROM and used Nexus Root Toolkit running on Windows 8.1 to unlock and root Lollipop just as I had with KK. Now I can alternate from KK to Lollipop and vice-versa.
This is for Nexus 4 but works the same for Nexus 7 if the correct Lollipop version is used:
http://forum.xda-developers.com/nexus-4/general/multiboot-android-lollipop-lrx21t-t2945890
This is from the Nexus 7 forum at XDA Developers:
http://forum.xda-developers.com/showthread.php?t=2011403
Zipped Stock ROMs to use for Lollipop (Use lrx21p_grouper.zip for the 2012 Nexus 7 (Grouper):
https://s.basketbuild.com/devs/Tassadar/stock_zips/

Hi
Did yolu installed also kernel for lollipop? Or are you using KitKat kernel? I tried to install as you described but lollipop always directs me to recovery.

asking same qeustions as hugo_bjk , before i updated to LOL' from 4.4.4 i tried to multirom various 5.0 roms but none worked all went to recovery as hugo_bjk says, im now 5.0 and performance for me is better then 4.4.4 anyways and now i do have kali nethunter installed via multirom ontop of paranoid saber remix:laugh:

I also installed 5.0 kernel but no go. Still directs me to recovery.

success
Âfter swapping internal and lollipop roms lollipop boots with success.

I've been away for a few days and just read the postings since I did the OP. I installed a Lollipop kernel with the kexec-hardboot patch and made Lollipop primary. Lollipop is working well, so far.
http://forum.xda-developers.com/showthread.php?t=2011403

Getting a new nexus 6 please some answers

hello everything
first i wanna say i love the nexus 6 thats why i ordered one from amazon and am waiting for it but i need some answer if you can
for now i have sony z2 rooted on 5.1.1
so my quss?
1- what is the latest firmware for nexus 6 and where can i get them from ?
2- the eastiest way to root the final firmware as i love rooted stuck android
3- do you think its a good move for me from sony z2 to nexus 6 .
thank you all.

1 & 2. http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481

1. Latest firmware is 5.1.1 Lollipop
2. Easiest way to root latest firmware - Google search Nexus Tool Rootkit from WugFresh
3. IMO it's a good move, Nexus 6 is pure Android out of the box, I don't recommend this if your a noob/average user. Should at least have some knowledge about rooting, installing custom recovery & ROMs, if not start doing your homework on XDA

ME173X Lollipop.

Hello, I got Asus Memo Pad 7 (ME173X) running custom rom (4.2.2).
Is there a Lollipop rom for this tablet?
Thanks in advance!

Wassupdog said:
Hello, I got Asus Memo Pad 7 (ME173X) running custom rom (4.2.2).
Is there a Lollipop rom for this tablet?
Thanks in advance!
Click to expand...
Click to collapse
If you mean stock rom, then yes, if you cant update your tablet via OTA you can manually install it via ADB or using a temporary recovery (search it in xda).

Ruben Craveiro said:
If you mean stock rom, then yes, if you cant update your tablet via OTA you can manually install it via ADB or using a temporary recovery (search it in xda).
Click to expand...
Click to collapse
Thanks!
I searched but only found for other models of this tablet, couldn't install it.

i tought you were talking about the me176cx model, the me173cx has no more support or any custom rom avaible to get kitkat/lollipop etc the only rom avaible is a modified rom of android 4.2.2.

Please could someone migrate or do a ROM based in cm12 or cm13 (lollipop or marshmallow) for this tablet??
I'm on original 4.2.2..
Thanks.
Sent from my Samsung GT-I9300 using XDA Labs

If there is an answer to this problem, please share. I have recently acquired a memo Pad 7 HD as well

jayvoice! said:
If there is an answer to this problem, please share. I have recently acquired a memo Pad 7 HD as well
Click to expand...
Click to collapse
you shouldnt have bought it, its a very old tablet and this tablet has no support and its impossible to port anything above 4.2.2, since its using a closed source mediatek chipset.

Learning Basics of installing custom rom for newbies

Hi guys , I have been looking through xda and could not find a single discussion on basics of installing custom rom on android devices my very first question is
1.) I have a smasung galaxy note 3 n9005 currently running 5.0 lollipop version, I tries to install a marshmallow custom rom on this device but it fails and I have to again restore my back up so I want to ask whether it is compulsory to install a marshmallow kernel for a marshmallow rom or can a marshmallow rom install on lollipop kernel .
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The international Note 3 forum is here: https://forum.xda-developers.com/galaxy-note-3

This thread has been deleted
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