Ok, here is my dilemma. I panicked a bit and downgraded to KitKat 4.4.4 from Lollipop 5.0.2 while there was some concern over it killing N7's. As is usual, I rooted the install, which means the 5.0.2 OTA will fail to install.
In the meantime, I started playing Agent Alice. (Don't laugh, I like hidden object games) However, unlike most apps, backing it up in TiBu doesn't preserve your progress. If you restore the backup, you start out at the beginning. I'm not sure how or why, but it appears I can't do my standard backup and push to the server routine. Which means I really don't want to blow away user data.
So, I looked into using the factory restore images with the modified flash-all.bat. I haven't yet pulled the trigger on that, because I have been told that going from KitKat to Lollipop without clearing user data can cause problems. I'm tempted to use TWRP to back up the whole thing and give it a go, but I'd prefer to go in as well-armed as possible.
What's the best way to get from KitKat 4.4.4 to Lollipop 5.1 without losing installed apps and user data when an OTA isn't an option?
I used factory images with a modified batch file to go from 4.4.4 to 5.0, then 5.0 to 5.0.1 and 5.0.2. I haven't updated to 5.1 yet.
I didn't lose any data. I installed the factory images, booted once and then ran Chainfire Autoroot each time to get root back. Zero issues, no lost data. As long as your bootloader is already unlocked (assuming it is if you're rooted and have already flashed back and forth), you won't lose anything.
You could still make a nandroid backup and worst case, flash factory images back to whatever version you did the backup from, restore and try again.
Related
Howdy, I have a TMobile HTC M8 One currently running stock kit kat with TWRP, Root, and S-Off. I have seen quite a few 5.0 posts regarding upgrading, but they all seemed slightly different (S-On, wipe, etc).
I am trying to upgrade my phone to 5.0 without doing a wipe. I have a lot of important data on my phone (and I have a nandroid backup), but I would like to avoid the "reinstall everything for days" cycle following an update. Also, I'm not much of an expert on doing this stuff. I generally become a temporary expert every 6 months or so when I need to do something important, and then I immediately forget everything.
So, what is the easiest way for a noob (with root, TWRP, and S-OFF) to upgrade to 5.0 without needing a wipe?
Thanks in advance!
Titanium backup
Wipe and install new ROM
Restore apps
Google will restore your settings
Manually set any you miss
If you just update from 4.4.4 to 5.0 without a wipe, you will almost certainly have issues.
I did that last time I worked on my phone. When I reinstalled titanium backup, it magically didn't actually have any of my data and I was sunk. Also, I don't sync my settings (or any data that I can control) with Google. Hence my apprehension at doing it again.
Thanks for the response, but I would like to avoid a wipe. If it causes issues afterwards, then so be it and I will deal with it then. for now though, I would like to at least try.
I was on [AOSP 5.0.1][LRX22C][AOSP Kangs][DJL5.0][Build 12][2014/12/04], and it seemed good enough.
Mainly I had Chrome often freeze and crash, or outright reboot the device. Also sometimes with only wifi on I would lose 30-40% battery over night as opposed to 5-10% on 4.4.4. So I used a twrp backup of 4.4.4 and restored that. Now almost all my comic files come up as corrupt and unreadable, even copying fresh from pc known good files, same behavior.
So as a comparison I figured id upgrade back to 5.0.1. Now it says my sdcard/0 is empty. Going back into twrp I see my stuff is there.
So I take I messed up something back. Whats the proper way to restore this to either stable 4.4.4 or suggest a good lollipop rom without too much unnecessary flash and decent battery life.
Boot into fastboot, wipe everything, flash stock image. Make sure you save the 4.4.4 backup and anything else you want before doing so.
Hi. I downloaded Lollipop but have not installed it yet and don't want to. I didn't know it was Lollipop I was downloading. How do I get rid of the possibility of it installing? I keep having to delay it for 24 hours. Do I have to do a factory data reset?
What version of anroud are you on and are you rooted? If so you can simply go to the /cache folder and delete the .cfg file file.
If you reboot before doing that the update will be installed.
I'm on 4.4.2 and not rooted. If I do a factory data reset before I install Lollipop would that get rid of the download ?
"Luke" don't fight it, grab the lollipop and feel the Force.
The force never tasted better.
Pp.
What is your reason for not wanting to update? Anything particular?
Rhino_7 said:
I'm on 4.4.2 and not rooted. If I do a factory data reset before I install Lollipop would that get rid of the download ?
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From what I know , when you try a factory reset it will reboot your phone to recovery and perform the reset there. It may successfully do so, or it may immediately install the update in recovery. I can't say for sure.
If it is absolutely necessary for you to avoid this update, backup your files, download a firmware from Sammobile that matches your current 4.4.2, very carefully reset to download mode (you will only have one shot at this) and Odin that old firmware into your system. Hopefully that will overwrite all your files and remove the update. On the first boot enter recovery and do a reset. That is the most likely solution I can think of which may have a remote chance of working.
Another possibility is that if your firmware has a date before Jun 5 2014, you can run towel root version 3 to root it (doesn't require a reboot) then go to the cache directory and delete the update file. Of course all of this should be done before rebooting. This should work but you will end up with a rooted system.
Finally if your were forced to take the update you can almost downgrade it back to 4.4.2.
Thanks. I just did a factory data reset and it worked fine.
The reason is I like the phone now just as it is. No WiFi issues,great battery life,ect. From what i have read even though Lollipop is a big update there is nothing new that makes me want to have it.
Anyone want to try and convince me?
Android updates seem to always be buggy. I "might" try it later.
I went straight up Kies update and the phone never ran smoother.
Running stock /rooted / debloated and everything works the way it's supposed to.
No bells, no whistles, no exposed, just straight up touchwiz.
Knox shmox, never gave it a second thought after the warranty ran out.
Pp.
Does anyone have any clues about why all my apps force close after marshmallow OTA? I am 100% stock but SOFF. I was rooted before but I have restored a stick system image. The update seems to go OK. The hone does the final reboot then goes through the process of optimising all the apps. Finally I get a lock screen but when I unlock I am bombarded with force close messages. If I do a factory rest the phone boots OK but I am interested to know why it doesn't like my data partition? Anyone have any thoughts on this?
The same thing happened to me after I tried to trick my phone to accept my data partition from KK 4.4.2 into Lollipop 5.01. So, I made a twrp backup, flashed 5.0.1 RUU, then immediately, restored my KK data partition, and ended up with everything crashing. Obviously, it won't work that way. What worked for me was to allow the phone to complete the first boot, THEN restore my old data partition
Cheers
shirreer said:
The same thing happened to me after I tried to trick my phone to accept my data partition from KK 4.4.2 into Lollipop 5.01. So, I made a twrp backup, flashed 5.0.1 RUU, then immediately, restored my KK data partition, and ended up with everything crashing. Obviously, it won't work that way. What worked for me was to allow the phone to complete the first boot, THEN restore my old data partition
Cheers
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Thanks. I did try that but alas no cigar. Thanks anyway.
This has been my biggest problem with my OP3 and OOS. I want to be able to safely dirty flash my rom without losing data.
Im a long time Android power user. CyanogenMod would always be a nice easy upgrade to the latest version. Dirty unicorns, albeit buggy on my Oppo Find 7, would upgrade easily.
The last time I tried an OTA update, it trashed all my data and settings. Subsequent updates have been major upgrades (updating kernels. Major changes like OOS 3.X to 4.X. etc etc), so I haven't tried doing a OTA/Dirty flash in a while. I have been cautious since the data wipe last time.
Any advice on how I can do an OTA easily and safely?
I have TWRP. I'm UNrooted and on OOS 4.1.1.
Backup everything.. Wipe system flash 4.1.1 and it should be fine, if not restore your back up. System does not contain any data nor settings.
Ok. Will it work with the 4.1.6 OTA I got? Or should I download the full room from the website
You have to download the full zip if you have TWRP installed. You can't update via ota.
I would recommend a TWRP backup and system, cache/dalvic wipe too.
Gucci! Thanks fam
ssjaken said:
Gucci! Thanks fam
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Well, you know, I had the same issue with my wife's 3T. Was terrible (and lucky), right out of the box, try to upgrade like you want to do, and the update would fail in the middle, requiring to wipe the phone to have it boot.
Luckily, as I said, the phone was new like 5 minutes old. I don't imagine what would happen after a few months use.
What I did to make it work was to use the stock recovery to flash the full rom zip from OP servers, and that worked.
All subsequent updates went well (with a little bit of stress we all know : will it boot, won't it? and if it does not, will I keep my head?)
Haha. Of course, you must be on stock recovery to do so, but it's easy to do, just follow the official way to do it "manually".
Oh, and backup all your stuff