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I did try it first but it gave me error in signature verification. So instead of bypassing that verification I installed the other one.
Anyway, even though its not showing App related options under Root Access, when I tried Root Checker app or Root Explorer option of ES File Explorer, those things worked. So it seems like even though the option is not visible root access to apps is available.
I changed the assert condition in updater script and allowed installation on K50. After that it got installed on my K3 Note (device name K50). Thank you for all your support so far. :)
I’ve also installed supersu zip as specified on this link: http://www.cyanogenmods.org/forums/topic/root-android-using-twrp-recovery-install-supersu/
The only issue I’m seeing is that in Developer options when I try to enable root, I only get 2 options: Disabled / ADB only. I don’t get any option to enable root for apps. What could be the reason?
Yes, there is an assert in updater script and I could have modified it to allow installation on K50. But I knew its risky. That’s why I didn’t do it :)
My point was
1. why does it show the device codename as K50 (this is just for my understanding)? As I’ve read somewhere that K50a40 gets changed to K50-t5 when stock ROM gets updated to MM. But could not find any info related to K50.
2. My main question was: Which ROM should I use for ‘K50’?
Thanks for the clarification. But I managed to copy the backup to PC using
adb pullin recovery mdoe. Earlier I was trying it after booting my phone normally and thats where it was not able to see the contents of internal storage. Once I used
adb pullin recovery mode I was able to access it.
I was not aware of MTP mode in TWRP, otherwise I would have used that :)
Meanwhile my current problem is that Lineage OS installation is failing. Please check this post: http://www.cyanogenmods.org/forums/topic/lenovo-k3-note-lineage-14-1-nougat-7-1-rom/#post-16834
I was trying to install ‘lineage-14.1-20170312-UNOFFICIAL-aio_otfp.zip’ from Daniel_hk and it gave an error ‘E3004: This package is for device: K50-t5,aoi_otfp, aoi_otfp_m,K3Note; this device is K50’. What should I do? Which ROM should I use for ‘K50’?
Note: under ‘Settings > About Phone > Device Information’ it says ‘Model number’ is K50a40.
Here are some more updates. To overcome the problem of free space, I first uninstalled quite a few applications, deleted photos, videos and app associated folders. By that I managed to get around 2 GB free space. So I went on and took backup of Boot and System. Moved it from TWRP/BACKUPS/K50 folder to my PC.
Then I added an 8GB SD card to phone. Then in Settings > Storage & USB > SD Card I got an option / menu item to “Format as Internal Storage”. After formatting I got an menu item to Migrate Data (from internal storage to SD Card). When I tried migrating, it gave an error like, migration failed, data remains at old location. But when I check the size of internal storage and SD card I could see following: Screenshot_2016-12-22-07-26-55-695.jpeg
So I could see that data was moved and now there was sufficient space on internal storage to backup my data partition. So I went ahead and backed up all remaining partitions. That finished successfully. But when I rebooted the phone and tried to find the file from windows explorer I could not find anything under TWRP/BACKUPS/K50 folder. I rebooted into recovery and checked the contents of /sdcard and noticed that it was having only TWRP folder (and 1 more folder related to CWM, as I had installed it last week). All other folders were missing. Then I realized that in recovery mode it was showing the contents of internal storage but when the phone is booted completely it shows the contents of external SD card and there is no way I can access the folders on internal storage now. :(
So I tried moving my data back to internal storage and again got the same error but this time it actually didn’t move the data :|.
Then I thought I should mount the external SD card in TWRP and then move the backup from internal storage to external SD card. But for some reason TWRP is not allowing me to select external SD card under mount option (though it is present there). Do you know what could be the reason?
Meanwhile I noticed that the backup that I had taken of all other partitions was deleted (probably during moving data from external SD to internal storage). So I’ve again taken backup of all partitions excluding data (and system & boot) but its still on internal storage and I can’t access it from PC.
I even tried using
adb shell ls sdcard/TWRP/BACKUPS/K50command to see what I get, but got it empty.
So how do I get the remaining back up on my PC?
Thanks Shibaa. Will keep those points in mind. Right now I’m struggling to free up space on internal storage as I’ve only 800 MB left :(. Is it possible to backup each partition separately and then move it to PC/cloud or do I need to back them all up at once?
On my Lenovo K3 Note, apart from Boot (16MB), System (2169MB), Data (5584MB) and Cache (0MB);
I can see many more partitions like: Logo (8MB), Nvram (5MB), Recovery (16MB), Uboot (0MB), Proinfo (3MB), Protect (0MB), Parametr (0MB), Secro (6MB), Tee (10MB), Frp (8MB).
And there is no PDS partition as you have mentioned. Can you please tell me what these extra partitions are for and which all should I select in my Nandroid backup?March 30, 2017 at 5:15 PM in reply to: How to ROOT Lenovo K3 NOTE and install CWM Recovery #16421
I’ve tried flashing CWM as well as TWRP recovery (from http://rootjunkysdl.com/files/?dir=Lenovo%20K3%20Note) using the commands given above. But when I reboot my phone in recovery mode, it always start Lenovo recovery. The custom recovery is not getting installed / executed for some reason. Can you tell me what could be the reason?