Related
Hey guys,
I want to try out custom ROM's but not sure if I'm going to like them or not... If I don't like it can I return my phone 100% back to stock gingerbread 2.3.3 and receive OTA updates etc ?
Of course you can.
People switch roms all the time.
Some even have an addiction, to be honest...
m1k30rz said:
Hey guys,
I want to try out custom ROM's but not sure if I'm going to like them or not... If I don't like it can I return my phone 100% back to stock gingerbread 2.3.3 and receive OTA updates etc ?
Click to expand...
Click to collapse
If you are rooted at 2.3.3 you can install clockworkmod recovery which is available through rom manager and with it you make a backup of the stock rom
With that backup you can restore it whenever you want to
Make sure you wipe all your data, cache and dalvik cache before flash a custom rom
Shadow_Android said:
If you are rooted at 2.3.3 you can install clockworkmod recovery which is available through rom manager and with it you make a backup of the stock rom
With that backup you can restore it whenever you want to
Click to expand...
Click to collapse
Yup, if you're rooted, you can use Clockwork to make a backup of your current ROM, which will preserve a snapshot of your phone exactly as it is now (with user settings, apps, SMS messages, everything).
Restore a stock rom from a back up made by Clockwork doesnt unroot and S-ON.
It will only restore stock ROM. To unroot and S-ON, there will be another effort
redpoint73 said:
Yup, if you're rooted, you can use Clockwork to make a backup of your current ROM, which will preserve a snapshot of your phone exactly as it is now (with user settings, apps, SMS messages, everything).
Click to expand...
Click to collapse
I'm in a similar situation with the OP. I'm with stock 2.3.3 and I want to try new ROMs. The problem is that, from what I have read, in order to root and unlock I first have to downgrade. Is there a way to temproot now so that I can install clockworkmod recovery and keep a snapshot before I downgrade?
When I bought this HTC G2 it was already rooted and running CyanogenMod 6. something. I updated it to 7.0.3 a while back. I was wondering if I could go back to Tmobile Gingerbread and still keep my phone unlocked so I could take the Tmobile updates without loosing all my files, apps, messages and phone numbers. I never had the original Tmobile rom backup on the card when I got the phone so don't know where to start.
Shadow_Android said:
If you are rooted at 2.3.3 you can install clockworkmod recovery which is available through rom manager and with it you make a backup of the stock rom
With that backup you can restore it whenever you want to
Make sure you wipe all your data, cache and dalvik cache before flash a custom rom
Click to expand...
Click to collapse
very noob question: what exactly gets wiped as "data & cache"?
marauber said:
I'm in a similar situation with the OP. I'm with stock 2.3.3 and I want to try new ROMs. The problem is that, from what I have read, in order to root and unlock I first have to downgrade. Is there a way to temproot now so that I can install clockworkmod recovery and keep a snapshot before I downgrade?
Click to expand...
Click to collapse
Nevermind, I found it here . But it should be added in the instructions to "chmod 755" su and busybox, not just fixsu.sh.
What would the process be to go from TWRP recovery to the stock recovery?
There is a folder in my phone called TWRP and if I delete that would it delete the custom recovery or is the custom recovery buried deep in the system files?
Would I have to use odin to get back to the custom recovery?
Thanks!
Someone has already extracted the stock (MDL) recovery and posted it here somewhere. A quick search might find it. Are you running the stock firmware?
xBeerdroiDx said:
Someone has already extracted the stock (MDL) recovery and posted it here somewhere. A quick search might find it. Are you running the stock firmware?
Click to expand...
Click to collapse
Forgot to provide some information:
Firmware: MDL
ROM: CM10.1 RC2
I don't plan on going back to stock for a while, unless I have a problem with my device but just want to gather some information ahead of time.
Would I use the stock recovery with odin?
The twrp folder just holds the backups. The recovery is part of the whole android system. Don't go looking for recovery or twrp stuff and just deleting it or you could Bork your whole recovery. Odin would be another way to return to the stock recovery, but the rest of your phone would be stock too. Why do you want the stock recovery?
jd1639 said:
The twrp folder just holds the backups. The recovery is part of the whole android system. Don't go looking for recovery or twrp stuff and just deleting it or you could Bork your whole recovery. Odin would be another way to return to the stock recovery, but the rest of your phone would be stock too. Why do you want the stock recovery?
Click to expand...
Click to collapse
Ohh that explains a lot. I totally forgot about the TWRP NANDROID backup capability.
I don't plan to go into the android operating system and deleting random files I don't know. That's just plain out idiotic.
I don't plan on going back to stock recovery and stock firmware anytime soon. Just gathering some information ahead of time just in case.
emckai said:
Ohh that explains a lot. I totally forgot about the TWRP NANDROID backup capability.
I don't plan to go into the android operating system and deleting random files I don't know. That's just plain out idiotic.
I don't plan on going back to stock recovery and stock firmware anytime soon. Just gathering some information ahead of time just in case.
Click to expand...
Click to collapse
If you forgot about nandroid and you haven't made a backup yet and you're still on the stock rom, make one now. You'll be happy down the road you did.
jd1639 said:
If you forgot about nandroid and you haven't made a backup yet and you're still on the stock rom, make one now. You'll be happy down the road you did.
Click to expand...
Click to collapse
It's too late for that now. I'm currently on CM10.1 and didn't do a Nandroid backup. Guess I'll have to do odin in the far future.
Is Nandroid backup important if I don't flash that often?
I don't plan on flashing my device every week, maybe once every couple of months.
emckai said:
Is Nandroid backup important if I don't flash that often?
I don't plan on flashing my device every week, maybe once every couple of months.
Click to expand...
Click to collapse
Even on the odd weeks I don't flash anything, I still make a backup at least once a week. IF something goes wonky or I accidentally tweak the wrong thing, a quick restore quickly fixes it and with little to no data loss.
Sent from my GT-I9505 using XDA Premium 4 mobile app
lordcheeto03 said:
Even on the odd weeks I don't flash anything, I still make a backup at least once a week. IF something goes wonky or I accidentally tweak the wrong thing, a quick restore quickly fixes it and with little to no data loss.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Alright. I'll do a backup sometime this week. Guess better safe than sorry.
emckai said:
Alright. I'll do a backup sometime this week. Guess better safe than sorry.
Click to expand...
Click to collapse
Do a separate backup of your efs folder. so important! More important than any other backup!!!
Download your stock firmware and use kies to do emergency firmware recovery. That will return everything to stock including recovery. Make sure you reset your flash counter with triangle away before doing so.
Im having 2 issues with phillys recovery n not sure wut im doin wrong. I did a backup and when I restored it gapps forceclosed and phone wouldnt let me do anything. Secondly ive tried doing he create custom rom. It flashs fine but wont pass bootloader s4 screen. Need help. Would love to be able to make a flashable rom with my ultra slim rom n possibly have my xposed tweets built in.
TeamBlaze
Got backup to work. But still unable to get custom rom aka update.zip to get past bootloader. Anyone kno how to fix this.
TeamBlaze
If you're talking about the update.zip made from Titanium, it is NOT a custom ROM.
It is simply a backup of your applications (and some settings) you can use to flash after flashing a ROM to 're-load' all your stuff.
If you get your current ROM configured the way you like it you can then create a nandroid to restore it later if that is what you want. And without any info on what version of Android you're on, what ROM you're on, or what version of the recovery you're on there is no way to tell you where to go from here.
leaderbuilder said:
If you're talking about the update.zip made from Titanium, it is NOT a custom ROM.
It is simply a backup of your applications (and some settings) you can use to flash after flashing a ROM to 're-load' all your stuff.
If you get your current ROM configured the way you like it you can then create a nandroid to restore it later if that is what you want. And without any info on what version of Android you're on, what ROM you're on, or what version of the recovery you're on there is no way to tell you where to go from here.
Click to expand...
Click to collapse
No. From philz touch recovery. In the custom backups you can selete create a custom rom from backup and I can't get tht to flash right after makin. Clean install n everything.
TeamBlaze
yotaking said:
No. From philz touch recovery. In the custom backups you can selete create a custom rom from backup and I can't get tht to flash right after makin. Clean install n everything.
TeamBlaze
Click to expand...
Click to collapse
Never tried that (make ROM from recovery in philz) myself.
I just make and restore loads of backups using Philz and TWRP. I consider a full backup (complete image(s) of all phone partitions) to be my ROM(s).
I would bet that with what you're doing that if, after you flash your custom made zip (and before rebooting) you stayed in recovery and then flashed (install zip) of the same recovery, rebooted back to recovery and flashed the kernel it may work.
Rebooting the recovery (or a battery pull) often clears out hangs.
Did you tried enabling se linux context from backup settings?
Sent from my GT-I9505 using xda app-developers app
do you have 4.3 compatability checked off?
same issue
yotaking said:
Im having 2 issues with phillys recovery n not sure wut im doin wrong. I did a backup and when I restored it gapps forceclosed and phone wouldnt let me do anything. Secondly ive tried doing he create custom rom. It flashs fine but wont pass bootloader s4 screen. Need help. Would love to be able to make a flashable rom with my ultra slim rom n possibly have my xposed tweets built in.
TeamBlaze
Click to expand...
Click to collapse
I had similair issues with philz. idid a very improtnact nandroid backup and when iwent ot restore it didnt work. I definately like TWRp the best. Best UI and never any issues for me.
androidaddicted said:
I had similair issues with philz. idid a very improtnact nandroid backup and when iwent ot restore it didnt work. I definately like TWRp the best. Best UI and never any issues for me.
Click to expand...
Click to collapse
I like twrp as well but dnt wrk on 4.3
TeamBlaze
dewrust said:
do you have 4.3 compatability checked off?
Click to expand...
Click to collapse
Conito11 said:
Did you tried enabling se linux context from backup settings?
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
Imma look into these
TeamBlaze
This guide will help you install the unofficial builds of CyanogenMod 12 and other Lollipop builds.
Disclaimer: These builds are not official and are very much pre-alpha builds. While many people have little issues, you may have issues yourself and without some knowledge of ROMing, you may end up bricking your device.
I and the people who built the ROMs are not responsible for you bricking your device or losing data.
Installation
Backup: If you do not backup your device, you will lose everything!
Install Titanium Backup and choose Backup all user apps from the backup batch actions
Titanium Backup requires that you are rooted to work. If you are not rooted, use a tool such as Helium.
Be sure to copy your backup to your computer just in-case the data in the "SD Card" partition gets deleted. Use Android File Transfer or ADB to do so.
Unlock Bootloader: If you did not root your device, you likely have not unlocked your bootloader and you will need to unlock your device using the guide here.
Recovery: You need to also make sure you have a custom recovery such as the TWRP recovery which an installation guide is also available here.
Downloads: If you have done all of the above, you are ready to begin the installation process.
First you need to download all these files to your device.
Google Apps from https://s.basketbuild.com/gapps
SuperSu from http://download.chainfire.eu/593/SuperSU/BETA-SuperSU-v2.19.zip (optional for root)
Next you need to get a copy of CM12, you can do so in the following 2 ways.
Download a lollipop ROM. Choose from one of these known to work ROMs, build your own ROM, or find a ROM from someone else you trust (if you find another good ROM, let me know).
https://www.reddit.com/r/oneplus/comments/2moqig/cm12_nonscheduled_builds_discussionupdate_thread/
http://forum.xda-developers.com/oneplus-one/development/rom-cm12-daily-builds-gapps-t2937887
Build your own copy by following this guide http://forum.xda-developers.com/oneplus-one/development/guide-building-lollipop-oneplus-one-t2947949
Flashing: This guide is using TWRP. If you have a guide for using ClockworkMod or another custom recovery, let me know.
1. Reboot into recovery, ether by adb reboot recovery in terminal or by holding down the volume down button as you reboot.
2. Go into wipe, and swipe to factory reset. This erases your data but should not erase the "SD Card" partition.
3. Go back home if it doesn't automatically do so.
4. Go into reboot then choose Recovery.
5. After reboot, choose install and select the Lollipop ROM you downloaded.
6. Swipe to confirm flash.
7. After successful flash, go back home and back into install and flash both Google Apps and SuperSu.
8. Reboot device to system and you should have Lollipop.
Restoring Backup: Now that you're on Lollipop, you will want all your app settings and apps back.
If you used the Titanium Backup option, install Titanium Backup, and choose Restore missing apps with data.
Common Issues
Slow Boot: The solution people have used was to remove GPS and location services. This means you will not be able to use any map program to navigate anywhere.
Using ES File Explorer, go to /System/priv-app and remove com.Qualcomm.location
NFC and Bluetooth: There was some earlier ROMs that had these issues, go to a more recent ROM.
Enable on screen keys and disable hardware keys: Follow this guide http://forum.xda-developers.com/showthread.php?t=2032117 and flash this to disable the backlight on the buttons https://drive.google.com/file/d/0Byxnqyony5AybHFOeWJhMmczS09pd0JNaGFwWHFybHlYRmNJ/view credit @sd65
MultiROM: MultiROM does not support Lollipop as of right now. There has been success in installing Lollipop then using CM11(S) as a secondary ROM.
I will update this as I find other common issues.
Restore CM11S (Stock firmware)
Make sure you backup using the instructions above.
Download original firmware from https://cyngn.com/products/oneplusone/ and extract it.
In terminal, cd into the extracted folder.
On your phone, unplug it from your computer and hold down volume up and the power button until you see the fastboot icon, then connect to your computer and run the commands in the terminal window.
Code:
fastboot flash boot boot.img
fastboot flash system system.img
If you wish to flash the original recovery:
Code:
fastboot flash recovery recovery.img
You can also try following this guide if you trust their download.
Once you are restored, so long as you didn't flash userdata, you should still have your backup from Titanium Backup in the "SD Card".
This looks great thanks for the post!
I already know the answer but just asking to be sure JUST in case I'm wrong, if I do a NANDroid backup before wiping and flashing the Lollipop ROM just to try it out, will I be able to go back to CM11S just by restoring the backup?
Mbennett156 said:
This looks great thanks for the post!
I already know the answer but just asking to be sure JUST in case I'm wrong, if I do a NANDroid backup before wiping and flashing the Lollipop ROM just to try it out, will I be able to go back to CM11S just by restoring the backup?
Click to expand...
Click to collapse
I don't know much about NANDroid myself, but reading http://forum.xda-developers.com/wiki/NANDroid seems like it's just a clone of the flash in a file and can be restored using custom recoveries. So I would assume so, but not sure.
Mbennett156 said:
This looks great thanks for the post!
I already know the answer but just asking to be sure JUST in case I'm wrong, if I do a NANDroid backup before wiping and flashing the Lollipop ROM just to try it out, will I be able to go back to CM11S just by restoring the backup?
Click to expand...
Click to collapse
Yes you can. I've been switching between Lollipop and Paranoid Android for 2 days now with NAndroid backups
hyuratzu said:
Yes you can. I've been switching between Lollipop and Paranoid Android for 2 days now with NAndroid backups
Click to expand...
Click to collapse
Great thanks
I tried to use MultiROM instead of this guide (of course, setting the 11s as secondary and pushing a custom AK kernel on the Lollipop ROM) but sadly it doesn't boot.
Elvecio said:
I tried to use MultiROM instead of this guide (of course, setting the 11s as secondary and pushing a custom AK kernel on the Lollipop ROM) but sadly it doesn't boot.
Click to expand...
Click to collapse
Try searching this thread for MultiROM and see what others have done http://forum.xda-developers.com/one...s-rumors-talk-l-t2829974/page146#post56750165
Another stupid question, but if I follow this guide to install lollipop alpha, when I decide to go back to stock can I just flash a brand new stock image for the latest CM11S version through twrp? Instead of using fastboot?
Sent via quantum entanglement, focused through my OnePlus One.
Why do i need too download and install google apps?
beastlykings said:
Another stupid question, but if I follow this guide to install lollipop alpha, when I decide to go back to stock can I just flash a brand new stock image for the latest CM11S version through twrp? Instead of using fastboot?
Sent via quantum entanglement, focused through my OnePlus One.
Click to expand...
Click to collapse
I'm not sure about installing with TWRP, it won't hurt to try. Just follow my instructions for installing Lollipop and apply it to CM11S
roktheman97 said:
Why do i need too download and install google apps?
Click to expand...
Click to collapse
If you don't want the Google Apps (Includes Google Play), then you don't have to install it. I have heard people who didn't install it say that they had some weird issues such as when you put your screen to sleep it reboots or something.
GRMrGecko said:
If you don't want the Google Apps (Includes Google Play), then you don't have to install it. I have heard people who didn't install it say that they had some weird issues such as when you put your screen to sleep it reboots or something.
Click to expand...
Click to collapse
I just installed android 5 and can't find Google play. Now I know why. Can I install it now or should I install it together with android 5. I'm asking if it matters. (Kind of a noob got opo in august and this is third time I'm doing this.)
---------- Post added at 08:13 PM ---------- Previous post was at 07:41 PM ----------
OK I have Google apps now, I'm in the step with backuping the apps, the moment I pressed backup a error pop-uped that it has problems with parsing? Also seems like it's taking forever backuping my apps..
roktheman97 said:
I just installed android 5 and can't find Google play. Now I know why. Can I install it now or should I install it together with android 5. I'm asking if it matters. (Kind of a noob got opo in august and this is third time I'm doing this.)
Click to expand...
Click to collapse
It doesn't matter if you install it later. I did the very same thing.
roktheman97 said:
OK I have Google apps now, I'm in the step with backuping the apps, the moment I pressed backup a error pop-uped that it has problems with parsing? Also seems like it's taking forever backuping my apps..
Click to expand...
Click to collapse
Do you mean restoring? You are suppose to backup before installing Lollipop. If you accidentally mess up the process of restoring, you will have to start again by going into the app switcher and quitting Titanium Backup.
GRMrGecko said:
Do you mean restoring? You are suppose to backup before installing Lollipop. If you accidentally mess up the process of restoring, you will have to start again by going into the app switcher and quitting Titanium Backup.
Click to expand...
Click to collapse
I backed up all the users app as instructed, now I wanted to restore all apps and its stuck with simple flashlight. As soon as I clicked restore it pop-ed up something about problems with parsing.
roktheman97 said:
I backed up all the users app as instructed, now I wanted to restore all apps and its stuck with simple flashlight. As soon as I clicked restore it pop-ed up something about problems with parsing.
Click to expand...
Click to collapse
Try reading things here http://www.titaniumtrack.com/kb/titanium-backup-kb/titanium-backup-troubleshooting.html
GRMrGecko said:
Try reading things here http://www.titaniumtrack.com/kb/titanium-backup-kb/titanium-backup-troubleshooting.html
Click to expand...
Click to collapse
Thank you very much for all information, I find this very helpful already. I think I will reboot the phone into recovery boot my previous OS and make another backup with newer version. Thanks again.
Thanks for this informative guide. The "Restore CM11S (Stock firmware)" is useful too.
roktheman97 said:
I backed up all the users app as instructed, now I wanted to restore all apps and its stuck with simple flashlight. As soon as I clicked restore it pop-ed up something about problems with parsing.
Click to expand...
Click to collapse
That's a system app, you can't restore those, you're only meant to backup/restore user apps.
Transmitted via Bacon
timmaaa said:
That's a system app, you can't restore those, you're only meant to backup/restore user apps.
Transmitted via Bacon
Click to expand...
Click to collapse
Flashlight from Google play.
Hi guys,
I had a very strange problem, my Titanium Backup on android KitKat backed up all apps, but I could not restore them on Lollipop. When I verified the backups, TB said they were corrupted (using AOSP Lollipop). Switching back to KK and verifying the apps again confirmed my backups were okay. The only thing working on LP in TB was restoring app's data (only). So, how do you install apps from your backup created with KitKat on Lollipop?
Install android KitKat ROM
If you are already on KK, skip this step.
If you are on LP, take a nandroid backup, wipe your phone, and install any KK ROM. Install Titanium Backup on that ROM.
Make an "update.zip" package
Open TB, open batch menu and verify your backups (while the backups were "corrupted" on LP, they worked for me on KK).
Open batch menu, and find "Recovery mode" in the list. There's just one option (Create "update.zip" from app+data backups). Pick the backups you want to restore on LP and run it.
It will create a recovery script, with all the apps (including their data). You're done on KitKat, back to LP!
Install/restore Android Lollipop
Wipe your phone again, install or restore any LP ROM you want to use.
Boot your phone to LP, set your Google account and other things you want to.
Install Titanium Backup on your phone. Do NOT restore anything yet.
Reboot to recovery & install your apps from the file you created with Titanium Backup (usually "update.zip" in the sdcard folder)
Reboot (system), your phone will update android and setup all your application's. Do not open those apps yet.
Restoring application's data with TB
If the TB did not begin the data restoring process yet (you would see that as a notification), reboot your phone again (system).
Your phone should start restoring data to the application's you installed via recovery earlier. Let it finish.
That's it, you're done! Your backups from KitKat, that could not be installed on Lollipop via Titanium Backup are now installed and working!
WARNING: Even if you have to wait/reboot more times, do it! If you setup your apps manually, and TB won't restore any data, there's a huge chance it will start restoring them on the next reboot and it will replace the data you already setup!
Cool!
Just one point I confuse, step 4, "Reboot to recovery & install your apps"
What apps? and how do you install it/them from recovery?
Honestly, I've never done it that way b4. I install all .apk files when the system is up and running.
votinh said:
Cool!
Just one point I confuse, step 4, "Reboot to recovery & install your apps"
What apps? and how do you install it/them from recovery?
Honestly, I've never done it that way b4. I install all .apk files when the system is up and running.
Click to expand...
Click to collapse
in the point 2. he said that you have to create an "update.zip" package that contains all of your apps & backup data...
then in step 4. you flash that update.zip through recovery
votinh said:
Cool!
Just one point I confuse, step 4, "Reboot to recovery & install your apps"
What apps? and how do you install it/them from recovery?
Honestly, I've never done it that way b4. I install all .apk files when the system is up and running.
Click to expand...
Click to collapse
60nine said:
in the point 2. he said that you have to create an "update.zip" package that contains all of your apps & backup data...
then in step 4. you flash that update.zip through recovery
Click to expand...
Click to collapse
Exactly like he said, I'll edit it a bit to make things more clear.
4. Reboot to recovery & install your apps from the file you created with Titanium Backup
Get back to recovery and install the *.zip file you created earlier with TB in recovery.
Why do you need to say or add this step: "Reboot to recovery & install your apps from the file you created with Titanium Backup"
Why can't you just say
4. Reboot to recovery & install the *.zip file you created earlier with TB in recovery.
Why need to install apps in one step then get back to recovery and install the .zip file?
That's the confused part.
votinh said:
4. Reboot to recovery & install your apps from the file you created with Titanium Backup
Get back to recovery and install the *.zip file you created earlier with TB in recovery.
Why do you need to say or add this step: "Reboot to recovery & install your apps from the file you created with Titanium Backup"
Why can't you just say
4. Reboot to recovery & install the *.zip file you created earlier with TB in recovery.
Why need to install apps in one step then get back to recovery and install the .zip file?
That's the confused part.
Click to expand...
Click to collapse
You have to restore them just one time, of course. I'm sorry i messed up with the description. Sorry to confuse you.
I fixed it now.
That's much better, my man.
G'day, m8
Thanks.
so i have to go back to KK and make an update.zip file thru TB, and then back to LP and install zip file via recovery...? do i understand this rite? is there no way stayin on LP and restore apps somehow? my verification says 0 errors, but still when i try to restore it gets stuck at 0% of restoring...
Yes, you do understand it right. There may be a way, but the only one working for me was this one.
Thank you
Big thanks for this!
You are welcome! Glad I helped!
How do you downgrade from Lollipop to KK?
Well that depends. If you are running LG's stock LP, then I am not sure. You better ask somewhere else. However, if you are running custom LP ROM, and you have custom recovery and rooted, then all you have to do is pick one custom KK ROM, flash it, and you are done. Use Pardus ROM, or CloudyG2, or CyanogenMod, whatever you like. It does not matter.
danek731 said:
Well that depends. If you are running LG's stock LP, then I am not sure. You better ask somewhere else. However, if you are running custom LP ROM, and you have custom recovery and rooted, then all you have to do is pick one custom KK ROM, flash it, and you are done. Use Pardus ROM, or CloudyG2, or CyanogenMod, whatever you like. It does not matter.
Click to expand...
Click to collapse
So, its working for cusrom LP only? Not for stock LP ?
aboutmath said:
So, its working for cusrom LP only? Not for stock LP ?
Click to expand...
Click to collapse
No. It works for stock LP as well. I was trying to say that I am not sure how to downgrade.
danek731 said:
No. It works for stock LP as well. I was trying to say that I am not sure how to downgrade.
Click to expand...
Click to collapse
Okay. Now, i see. Thanks
Hi,
thanks for that great instruction. It worked very good on my Nexus 4 from Kitkat to Lollipop.
But one little failure.
Several app notifications (for example Quizduell, Tapatalk) don't come up after the update. Is there any chance to get them back, or do I have to reinstall that apps?
Try to open the apps. When you open the app, the notifications should start working properly. If they don't, just reinstall the app.
Will this work vice versa also?
Will this method work if you switch from lollipop to kitkat as well?