yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Duke3d81:
Hey guys,

one question. I installed LOS at all my devices and now I want to install it on my T520. Are these steps right:

1. install custom recovery via odin

2. install LOS in the recovery

?

at my Nexus 9 I still had to unlock the bootloader. is this neccessary at the T520 ?

Thanks!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] hamudistan:
Yes, your steps are right. But don,t forget to flash suaddon or magisk too, if you want root
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Duke3d81:
thank but I dont want to root. is it necessary to unlock bootloader? if yes, can you give me a tutorial...I dont find a tutorial at the internet...:rolleyes:
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] supachris:
No, bootloader is unlocked.

But keep in mind to boot directly into recovery after flashing the custom with odin.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Savastano:
Guys, i've installed this rom in march 2017 (711.1) and didn't update since then.

Now i found out that the latest version avaialable here: https://download.lineageos.org/n2awifi is from 2018-01-04.

Is it possible to upgrade to this version without doing a full wipe, and having to install all of my apps once again (like it used to be with the stock versions of android) ??
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] airtower:
Check Settings -> About Tablet -> LineageOS version. If it says nightly in the version, you should be ok to just flash 1/4 over. If it says unofficial, you will be unable to flash 1/4 without wiping. And yes, wiping will require you to reinstall everything, but if you're using gapps, then they can be restored fairly painlessly. You'll still need to set them back up where necessary (login, change settings, etc).

Once you're on an official build, you do not need to wipe to flash a new nightly. This is all due to the signing keys used on official vs unofficial builds.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Lumpnhendl:
I don't know what you have changed the last two weeks but the last official update from today is incredible! This tablet has never been that smooth before. The stuttering while scrolling websites was driving me crazy. I'm excited if the camera issues are fixed as well. Great job guys!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] airtower:
If you want to see specifically: https://www.cmxlog.com/14.1/n2awifi/
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] moloko01:
Sorry, for me updating to 20180118 official makes big problems. Google service can't update after booting, got two Google clocks and two versions of Google Keyboard??? Something wents wrong. For a while I live with my last backup

Can someone confirm? Strange issue.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] chr0m:
I'm still getting this weird text scaling issue on the right of screen. I've had it ever since Lineage came to this device.

Any ideas?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
Can you post a pic?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Lumpnhendl:
The camera/flashlight crashes are still there so I'm back to cm12.1. Thats the last version where everything works as expected for me. Smooth scrolling, no crashes and good battery.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] moloko01:
Yes, and the old foldermount issue is still there.

But I'll give it a new try and make a new, clean install on next Friday, with fresh gapps.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] chr0m:
Here's my post about it from last year

https://xdaforums.com/showpost.php?p=73267670&postcount=588

In the attachment some letters in the text towards the right looks odd. See the word "products" near the end of the third line to see what I mean. It happens in all apps, but only towards the right of screen. Pretty strange.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Duke3d81:
Can somebody expain where is the different between official and non official Version for the T520? There are different dates for the Updates.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
I really can't see any issue from the pic.

I use font size large and display size large. Try them and see if helps at all.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] chr0m:
Really you can't see how some of the text looks like it's bold or something towards the right?

I've played around with different font sizes and scaling options, nothing helps. I never had this issue on the unofficial rom or any previous ROMs I'd used on this device. It only started with official Lineage 14.1
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
Looking closer I do notice some weirdness. The entire middle line looks bold. I don't see products anywhere. With the word deine the ine part of the word looks like it is raised.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] chr0m:
"products" is the 4th word from the end of the 3rd line. Look at the r and the t. Then look at the other rs and ts on the left.

Also look at the r in "customers" above "products" looks too skinny. "mediocre" on the end of the second line looks weird too.

You might have to zoom in to see it more clearly.

Very odd issue.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
I am not seeing the same thing as you. I see a screenshot of a lockscreen with german language on everything. There is no word product. There is a deathly aduitor notification but everything is german. This is crazy. I am using tapatalk wonder if that is causing it. I will have to look using chrome.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
This is a total bug on tapatalk part. I am using chrome now and it not at all what tapatalk displays. Here is a screenshot of what tapatalk shows for your photo.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] chr0m:
​

Haha wth? Definitely not one of my images. I don't speak German :)

So did you see the proper image?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
I see the paragraph and what you are saying. Products and mediocre especially have weird bold and a see a lot of letters scrunched together in words. Very weird.

I don't think I'm am getting the same issue but right now I am on official rom (06/08/2017). I was on unofficial for a while and decided just to stick with official and I was able to stop getting the rom from crashing while watching youtube videos. I tried newer version again the other day and just kept crashing and just went back to my nandroid.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Duke3d81:
Can you expain what the difference between official and non official Version is?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] bierma32:
Official is supported from the LOS Team.

Unofficial is supported from a developer with some changes from the offc.Code.

And not all functions Work.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] moloko01:
No more nightlys?

Deleted, wrong forum
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] moloko01:
After clean install the nightly 20180118 with fresh gapps, everything is all right, tab runs smooth.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
Try watching some 1080p or higher youtube and see if it doesn't crash.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Duke3d81:
OK thank you. Which Version du you prefer?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] moloko01:
Sorry, no problems with 1080p YouTube movies with aktual nightly/gapps package.

But I can say, that the tab is under heavy use sometimes verry hot.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] harimakenjibr:
Thank you for your hard work. I installed LineageOS "lineage-14.1-20180217-UNOFFICIAL-n2awifi" following your instructions. Booted ok, so I ran TWRP 3.1.1 and installed open gapps stock, but the tablet randomly shuts down on installation. So I tried open gapps nano. It completes the installation but after setting up the initial setup it got stuck on "Android is initializing". Could you help?

Update: tried the 20180127 version and it worked fine.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] bierma32:
Does some one has also problems with the OTA update function, it download the ROM but the Recovery doesn't install it.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] corax2.05:
That's a known bug. You can update with CyanDelta app, that works fine or manually in recovery.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] LibertyPlayer:
I have the problem if i delete huge file it will not update the storage information. I have to reboot the tablet and then i have more free space otherwise the deleted file give no space.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Savastano:
Since my Tab Pro started to act strange i want to sent it back to Samsung to see if it's a battery issue or something else.

I want to go back to the stock rom 4.4.2.

I have to just download the rom from sammobile and than follow these instruuctions, or i have to do something else beside this ?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] hamudistan:
Yes your list is complete. It will work this way for shure
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] ZaeZae:
Stock Room 4.4.2

https://mega.nz/#!rF9nnSYS!rJFETJvPGyl9nAoawqZPUm-Y9gefwHCqD1rdwpK-n6w
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] siscoextrem:
Hello,

what Platform to choose, when download Gapps ? Arm ; Arm64, x86 ?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] corax2.05:
Arm
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Lumpnhendl:
Is anybody else back to lineage 13? I guess I've tried all available roms for our sm-t520 but nougat roms don't seem to be on the same level yet. I could live with the camera and torch issues but the scrolling stuttering in apps or on websites is too annoying for me. Thanks for your hard work though I think we just need a little more patience...
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] corax2.05:
There are some issues, for sure. I installed this nougat build really early on two tabs (one with official, one unofficial) and do updates from time to time. There are no stuttering bug over all. Maybe your installation is broken?

The most annoying thing for me is the locksceen rotating bug in the official build.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
All -

I've been on CM 12.1 picassowifi since I originally purchased, rooted and then flashed my TabPro 10.1 SM-T520. That was an excellent mod, and well worth the effort, especially as it: got rid of the annoying Samsung OS; enabled (static) access to the SD Card, since it was an upgrade from Android 4.4 to 5.1.

I'd like to flash a new mod, with a more current version of Android. It seems that, since CM "morphed" into Lineage, that's the way to go. Plus, the current version (N2AWIFI) will get me up to Android 7.1.2, which I'm hoping will enable a more seamless, dynamic use of the SD card (e.g., without me having to manually move apps !) Is that true, or during installation is there some type of setting for that?

For installation - I've already rooted the TabPro and installed TWRP with Heimdall. It would appear that I simply need to

- download the LOS install package and GAPPs

- copy to the SDCard via ADB (or simply connecting as a media device and copying?)

- reboot into recovery

- wipe everything

- install the two packages

Is that essentially correct? Will that preserve my existing app and data configuration, or should I do a Titanium Backup, flash new, then restore the backup?

Also, will that preserve root, or do I need to install the additional LOS root options?

Finally - will this provide "OTA" updates, or do I need to install those manually?

TIA, and thanks for all the great work!

Ed
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
One quick question - I was on the LineageOS Wiki, and downloaded the packages for the 10.1

- lineage-14.1-20180331-nightly-n2awifi-signed

- open_gapps-arm-7.1-nano-20180401

- addonsu-14.1-arm-signed

But, as I understand the "nightlies" are essentially unofficial builds "in development"? Is there an official build for the "n2awifi"? All I saw on the downloads page were the nightlies.

TIA

Ed

PS: AND, I just say that the Nexus 5 ALSO has a corresponding Lineage 14.1 build! Excellent - as soon as I get the Tabpro done, I'll do my Nexus as well....I vastly prefer to have all my devices on the same ROM.

PPS: And just out of curiousity; are there LineageOS ROM builds for ereaders running Android? (specifically, Onyx Boox) -

TIA!

Ed
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] airtower:
Lineage has only ever released nightlies (actually weeklies). There is no stable or M release or anything like that.

There are however official and unofficial builds. Anything you get from the lineage site is official.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
Ah...ok, thanks.

Now, I've run into another issue. As I said, I had already installed a custom recovery (TWRP) using Heimdall, and had flashed CM 21.1 picassowifi. So, I just:

- copied over the n2awifi (and other packages) to the /sdcard

- booted into recovery

- wiped the system, data and cache partitions

- installed the 3 packages, and then rebooted

But, I had a brain freeze, and forgot that I had encrypted the tablet. So during reboot, I got an encryption screen (different than the CM screen) asking for my password. After two attempts, it then rejected my password, and brought me to a screen to perform a factory reset.

Instead, I was able to power off, and then powered on into Recovery (Home + Vol Up + Power). That brought me to an android screen, which says "Odin mode", with a message that says "Downloading - Do not turn off target !!"

It's been unchanged for 30 minutes or so....I'm wondering if this is normal, or if I should take some corrective action steps (e.g., reboot again, try to do a factory reset, then start from the beginning).

Any suggestion? Should I post in a different forum?

TIA

Ed
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] airtower:
Odin mode is not recovery, it's download mode. It's not doing anything despite the message. Not sure what happens after failed decryption, but power down and double check your recovery key presses. You might be able to save it from there but you might have to reformat (this is more than factory reset).
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
Whew! Thanks for your help.

I was able to power down, and then reboot into recovery. The first decryption screen indicated that I had the wrong password, but by holding down the power button, was able to get to TWRP. Interesting, THAT decryption screen took my password.

I then proceeded to wipe caches, reformat data , and then reflash Lineage and GApps (I didn't do the suRoot, based on another thread), and reboot.

It then successful booted into LOS, and I'm now setting it up.

Thanks!!!

Ed
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
Another issue:

The tablet performance has been improved tremendously since installed LOS 14.1! Thanks !!!

I wanted to update to the latest nightly (07-Apr). I made a TWRP (nandroid) backup, although I was not able to initiate the backup from the TWRP Manager app (JMZ Software), because I had not installed the suRoot app. I booted into Recovery, and then made the backup.

[Question: TWRP did not recognize the ext-SD? Am I missing a setting?]

Then, after rebooting, I opened LOS updated, downloaded the latest, and selected Flash. The app said I needed to enable root access for apps; after enabling Developer Options, I was only able to select root access for ADB.

I presume this is because I didn't install the suRoot app? Or is there a different process or setting to enable the LOS Downloader? Or should I re-full-install LOS (along with the suRoot and GApps packages) ?

TIA

Ed
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] LaCruz:
For SU look here: https://download.lineageos.org/extras

Use the right TWRP!

https://dl.twrp.me/picassowifi/twrp-3.0.2-0-picassowifi.img.html

The newer one, didn't work correctly!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] airtower:
I'll be that guy - are you guys working on 15.1 for n2awifi?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] LaCruz:
yes - we try it ;)
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] corax2.05:
That's really great news! :good:
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Marc0601:
Anything for mondrianwifi??
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] LaCruz:
has a different SoC!

--> https://wiki.lineageos.org/devices/mondrianwifi

The team work on some Exynos 542x Roms.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Marc0601:
So mondrianwifi is dead now?? :(
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] LaCruz:
I don't know. Ask a mondrianwifi Developer.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Marc0601:
Do u know anyone?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
Right - thanks!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] TobiPeter:
Hello guys,

I have problems with the auto updater of the N2awifi's official LOS version.

It can download, but not install updates.

I have TWRP 3.1.1-0 installed.

Is that a known problem?

Is there a workaround to fix that problem?

Thanks for your help!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] mrm1:
This is a known problem. Once downloaded. Hold your finger on the update and extract the file. Reboot into recovery and install the update using twrp.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] TobiPeter:
OK, thanks. :)

Do you know, if there'll be a LOS 15.1 version for this device?

And could it fix it?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Oliver Ochojski:
Anyone found a solution to force Netflix to play FullHD with this Lineage ROM? Even with the patched apks i found in several threads i only get 720p. With original Samsung Android 4 Stock Rom i get 1080p without any problem.

My SM-T900 running Lineage 14.1 v2awifi is doing 1080p fine with unmodified Netflix app. So it seems to be no general Lineage problem.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] WVUTampaAlum:
I've tried everything for Netflix as well and the only slightly decent thing I've found is download video in hd. The resolution is better from the download than streaming netflix.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] jericko:
I have been on the 2017/06/12 nightly and just upgraded to the latest nightly, and WOW, this ROM has come a long way. I had a few minor issues with the 6/12 (wifi dropping would be one of them) but the latest nightly so far is perfect! Thanks to the entire team behind this ROM!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] RikR:
Working great

Just installed on my old SM-T520 and it is working great.

Thank you!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] amphi66:
Looks pretty good, but home button is inoperative and I do not see an option to turn off button backloghts.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Lumpnhendl:
Really? I‘ve tried the last official build again and the stuttering while scrolling is driving me nuts. It occurs on websites, apps, even settings and looks like a frame skip at the end of a scrolling movement. Lineage 13 is way better in that regard but unfortunately slower in other aspects. Maybe it might be connected with the camera issues? No one else is noticing this?
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] f_ries:
I'm facing the same stuttering behavior. And I'm tired of searching for a solution. Due to that I'm usingthe tablet for nothing else but watching movies in bed anymore.. sad but true
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] Lumpnhendl:
Thanks for your reply. Glad I'm not the only one. I wonder if other exynos5420 tablets like the tab s face the same issues. I've tried really all roms that are available for our tab pro, stock, graved, cm11,cm12.1, liquiddeath etc. but sadly all of them have their flaws. I just want to have smooth performance for watching videos on youtube, reading pdf magazines and browsing the web. I still have hope for cm15.1 if it will ever happen but otherwise I‘m thinking about buying another tablet. I still love the screen quality too much tough. For me lineageos 13 seems to be the best so far.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
Random bootloop after LOS updater

I had been on LoS 20180407, along with TWRP 3.1.1-0, all of which was working fine.

I got a notice yesterday that the new nightly LOS 20180526 was available, so in the LOS Updater, I selected Download, then Flash. My Tab Pro rebooted into Recovery, then I selected the 20180526 to flash. After swiping to select Flash, there was another quick notice to update to the latest version of TWRP, which I also selected.

Well, I then got stuck in a boot loop. I tried to reboot into Recovery, and reflash both the LOS 20180526, then also my original LOS 20180407, both of which were interrupted between 50% and 80% of completion with a random reboot. I then tried to restore my prior Backup image, and again had a random reboot somewhere along the process.

I then did some investigation, found TWRP 3.1.1-0 had similar problems reported, so I used Odin to flash TWRP 3.02 back onto the Tab.

I then rebooted into Recovery, and tried to install my original LOS 20180407 zip file. After swiping to flash, it almost immediately switches back to the main Recovery home screen.

Since I'm not that familiar with these processes, can someone describe or point me to a thread that either can resolve these problems, or can provide guidelines to essentially reinstall the whole system?

TIA

Ed
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] supachris:
I also have such issues with the 3.1.1 TWRP, in 3.0.2 everything works fine. I think, you should install the latest LOS build from twrp 3.0.2 but before, wipe the system partition. Maybe due to the reboots while flashing there is something corrupted.

I installed today the 20180526 build and it works.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] gandoe:
Thanks for the quick reply.

No such luck....I can't seem to install anything from TWRP 3.02, either the LOS-20180331 or LOS20180407. Each time I swipe to flash, the tab immediately just reboots into Recovery.

I think I'll need a process to re-flash LOS from Odin, or Heimdall. I was able to re-install TWRP 3.02 from Odin, but can't seem to do the same with LOS. If you could point me to a thread or page, I'd greatly appreciate it.

TIA

Ed

---------- Post added at 03:28 PM ---------- Previous post was at 03:26 PM ----------

And, in the process of re-flashing and wiping, TWRP is now saying I don't have an OS installed!
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] jericko:
I do not have my Tab in front of me, but I was able to turn the back lights off. Look for a dimmer option then slide it all the way off. If you still need help, let me know and I can find the exact spot for you.

I use my Tab Pro primary for reading Comics and no issues. Also, I am a bit of a news junkie and have most of the popular news apps installed then a AdBlocker to block the ads and have yet to see any issues scrolling. My Kids use my tab to watch Paw Patrol via Plex when they are at the in-laws, and we have not seen any stuttering on there as well. Netflix looks kinds of low res I have noticed, I had to side load it from a app off Moblism, but it works, just looks standard def.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Android Development] supachris:
Very strange! Can you erase the system partition? Also try to store the update file to internal memory with mtp in TWRP. Another try can be to re flash twrp with Odin and reboot directly into twrp afterwards...