yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Questions & Answers] Schaagi:
I've installed your image as clean-install. It boots !!!

At the beginning of the setup process there is a bluetooth error, that repeats after every new boot.

First installation without opengapps -ok

Second one with opengapps - ok

Restore Data from previous image - ok

As next I will try to install magisk.

Wow, good job. I will check it for the next days and give feedback later.

Best regards

Schaagi
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Can you provide a screenshot of the error please?

I haven't seen the bluetooth error before on my SM-P550 and I reboot my SM-P550 a lot because I'm always flashing new builds.

I don't use bluetooth at all, but when I turn it on, I can see my neighbor's 65 inch TV. Also, I can pair two tablets together using bluetooth.
[Samsung Galaxy Tab A series Questions & Answers] Schaagi:
Meanwhile I have installed Magisk 21.1 and it works too :)

I've attached 2 screenshots from Bluetooth error.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
The above is why we need BETA testers.

Okay, I ran into the bluetooth error problem on the SM-T350 and it was due to a missing bluetooth library.

In my SM-T350, I have

# RT 17.1 copy bluetooth file otherwise bluetooth keeps crashing
PRODUCT_COPY_FILES += \
vendor/samsung/msm8916-common/proprietary/vendor/lib/libbtnv.so:$(TARGET_COPY_OUT_VENDOR)/lib/libbtnv.so

Those 3 lines of code are not in the T550 build. It's easy to add and I can create another BETA build. It's building right now and probably be done in the next 2 hours or so.

If you want to add the libbtnv.so file yourself, here are the instructions

1) Boot into TWRP 3.4.0.0.

2) Click Mount. Choose System.

3) On your computer, goto

proprietary_vendor_samsung/msm8916-common/proprietary/vendor/lib/libbtnv.so at lineage-17.1 · Galaxy-MSM8916/proprietary_vendor_samsung

proprietary_vendor_samsung. Contribute to Galaxy-MSM8916/proprietary_vendor_samsung development by creating an account on GitHub.

github.com

4) Click download.

5) Goto the directory where the libbtnv.so is saved.

6) Plug in microusb cable to tablet.

7) Then use adb to push the file using the command

$ adb push libbtnv.so /system/vendor/lib/libbtnv.so
libbtnv.so: 1 file pushed, 0 skipped. 48.5 MB/s (16128 bytes in 0.000s)

8) Check to make sure file was pushed.

$ adb shell ls -al /system/vendor/lib/libbtnv.so
-rw-r--r-- 1 root root 16128 Dec 19 21:24 /system/vendor/lib/libbtnv.so

9) Reboot into system and bluetooth error should be gone.

OR

Just wait until my next build is done to get rid of the bluetooth errors. I'm confident the error is due to the missing bluetooth library file.

I will send you and Simone101 a PM when the new build is done.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
The new BETA build is finished, but having problems uploading to host server right now. I will try again in a couple of hours to upload. I will PM when I get it uploaded.
[Samsung Galaxy Tab A series Questions & Answers] Schaagi:
I've installed the new image and bluetooth error has gone.But I'didn't test the functionality of bluetooth at the moment.

Will check more in detail and inform you about the results. Thank you.

Regards

Schaagi
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
@retiredtab

I want to test your ROM , where I can download it.

At the moment I use the cdroid 10 by virsys

My CPU runs at performance mode with 1600 MHz.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Over at the T550 thread, it seems that some people who are using crDroid 10 are reporting

1) camera not working

2) brightness not working

3) browser crash (that's you)

#1 and #2 work on my build. As for #3, if you are using the built in Jelly browser, I have noticed that if you open more than 4 windows, it crashes sometimes.

While not perfect, I found that smartcookieweb app works better than Jelly.

Releases · CookieJarApps/SmartCookieWeb

A secure, open source web browser for Android. Contribute to CookieJarApps/SmartCookieWeb development by creating an account on GitHub.

github.com

The Brave browser seems to work the most reliable. You can use Aurora store to download it from play store or try downloading brave apk somewhere.

On a daily basis, I use smartcookieweb as it has built in adblocker and suits my daily browsing needs.
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
@retiredtab

Both cameras works on Cdroid for me.

Yes, browsers crashes after some times, I use opera mini.
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
Bluetooth works for, tested sending and recive images.

GPS is not working, will try it again next time.

Magisk 21 works.

WiFi works.
[Samsung Galaxy Tab A series Questions & Answers] layman22:
Hi retiredtab,

Nice to see that anybody has try to give us an update for this fossile (y)

Please let me knoe where can I download and test your build.

regards,

L
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
No need to retest GPS. I already know what's wrong. This is the same problem I had with the T350.

The T550 build is missing the commands

# GPS
PRODUCT_COPY_FILES += \
vendor/samsung/msm8916-common/proprietary/lib/libloc_api_v02.so:$(TARGET_COPY_OUT_VENDOR)/lib/libloc_api_v02.so \
vendor/samsung/msm8916-common/proprietary/lib/libloc_ds_api.so:$(TARGET_COPY_OUT_VENDOR)/lib/libloc_ds_api.so

Now I did test the T550 build on my P550, but it looks like when I made the final image, some of my scripts or commits didn't get copied, like the above, over when I initially changed some P550 naming/parameters to T550.

Some background. I had only 1 hard drive for the P550 and T550 code. I did test bluetooth and gps on my P550 and both work.

After I tested everything, I then later split the P550 onto one hard drive and the T550 to another so I wouldn't get confused when compiling and making changes. I suspect now that I forgot to copy over my T350 script to fix gps and bluetooth onto the new T550 drive.

To fix gps without having to re-download another 440MB file,

1) Boot into TWRP 3.4.0.0.

2) Click Mount. Choose System.

3) On your computer, goto

proprietary_vendor_samsung/msm8916-common/proprietary/lib/libloc_ds_api.so at lineage-17.1 · Galaxy-MSM8916/proprietary_vendor_samsung

proprietary_vendor_samsung. Contribute to Galaxy-MSM8916/proprietary_vendor_samsung development by creating an account on GitHub.

github.com

and

proprietary_vendor_samsung/msm8916-common/proprietary/lib/libloc_api_v02.so at lineage-17.1 · Galaxy-MSM8916/proprietary_vendor_samsung

proprietary_vendor_samsung. Contribute to Galaxy-MSM8916/proprietary_vendor_samsung development by creating an account on GitHub.

github.com

4) Download both files above (libloc_ds_api.so and libloc_api_v02.so).

5) Goto the directory where both are saved.

6) Plug in microusb cable to tablet.

7) Then use adb to push the file using the command

$adb push libloc_api_v02.so /system/vendor/lib/libloc_api_v02.so
libloc_api_v02.so: 1 file pushed, 0 skipped. 7.6 MB/s (116316 bytes in 0.015s)

$adb push libloc_ds_api.so /system/vendor/lib/libloc_ds_api.so
libloc_ds_api.so: 1 file pushed, 0 skipped. 29.5 MB/s (26132 bytes in 0.001s)

8) Check that both files exist.

$adb shell ls -al /system/vendor/lib/libloc_api_v02.so
-rw-r--r-- 1 root root 116316 Dec 7 2020 /system/vendor/lib/libloc_api_v02.so

$adb shell ls -al /system/vendor/lib/libloc_ds_api.so
-rw-r--r-- 1 root root 26132 Dec 7 2020 /system/vendor/lib/libloc_ds_api.so

9) Reboot into system and GPS should be work now.

I'm making a new BETA image again and before I upload it, I will retest everything again on my P550. It's a bit awkard as everything is mapped backwards on the X-axis.

I'll post here when it's up.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Well it was around 1AM in the morning when I saw the gps not working post and now it's 2:13AM. I'm just waiting for the last 5 minutes of my new build, but the host server is having major problems right now.

So I'm going to sleep and will try uploading the new image tomorrow after I retest everything with the P550 running the T550 image. Everything will be mapped backwards for me on the X-axis while testing.

Dec 21 BETA build up. Androidfilehost is having major problems so I put it up on sourceforge.net. No way I could go to sleep with this hanging over my head. It's 2:30AM. Now I'm going to sleep in tomorrow.

Dec 21 build has gps fix.
[Samsung Galaxy Tab A series Questions & Answers] haajee86:
Ooh i want really like to test! :)
[Samsung Galaxy Tab A series Questions & Answers] Schaagi:
Hi retiredtab

This is my experience with the new 17.1 image for the T550, since the last few days.

- The image is very stable, not one issue found in my daily use

- No problem with battery drain

- GPS is working

- Bluetooth is working too (tested with a Bluetooth mouse)

Thank you for this excellent image, I've never had a beta that worked so smoothly. :)

It seems you have a lot of experience with building an image. Maybe you could also create an image for T710, T810. I would then be happy to help as a tester. Maybe this is an option ?

Unfortunately, the images of Ripee created a lot of bootloops. I'm willing to test, but rebuilding the tablet every time makes no fun.

Best regards and Happy New Year

Schaagi
[Samsung Galaxy Tab A series Questions & Answers] addisson2014:
Soo... what can I say about this OS... Very comfortable and smooth. I didn't notice any problems. The only problem was the annoying on-screen buttons, which I removed through editing the system file. Thank you so much for your work, friend, I really appreciate it! With love from Russia ❤
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
To get rid of on-screen buttons, you don't need to edit system file. It's in

settings, system, advanced, gestures, system navigation, gesture navigation, press home button

on screen buttons gone after that.
[Samsung Galaxy Tab A series Questions & Answers] addisson2014:
After a few days of testing, I can say the following. I found one problem: after rebooting the tablet, the date is reset to December 21.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Here's where something I learned on the SM-T350 and SM-P550 in Nov 2020 that will help with the SM-T550.

The SM-T350 doesn't have a real time clock so unless you use NTP (network time protocol), it won't keep proper time if you manually set it and then reboot.

On my SM-P550, if I turn off NTP, set the time manually to June 1, 2021, reboot into recovery and reboot into ROM, it shows June 1, 2021.

Since I don't have a SM-T550, I didn't know if the SM-T550 has a real time clock or not. Since you are reporting exactly what others said about the SM-T350 below

https://xdaforums.com/t/unofficial-...ab-a-8-0-sm-t350.4162573/page-2#post-83906999

I know how to implement a workaround by using timekeep. I will build it later today or tomorrow and post another BETA image if you want to test the timekeep functionality because I cannot on my SM-P550 since it keeps time properly.

Once the new image is built and tested by me, I will post a link here.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
I think the reason it's set to Dec 21 is because that's the date I built the last image. As to why, I haven't bothered to look through the 10,000 lines of code. Even if I did, it would take me a long time to understand it. Time, I rather being using trying to figure out Android 11.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
@addisson2014, Jan 3, 2021 build up includes the timekeep functionality as I discussed above. It's the only change to the last BETA image as I did not do a repo sync. Let me know if it works or not. Thank you.

I'm opening up the BETA to everyone now. New file is at

retiredtab - Browse /SM-T550/BETA at SourceForge.net

sourceforge.net

The next build will be after the January 2021 security patches are released by LineageOS.
[Samsung Galaxy Tab A series Questions & Answers] addisson2014:
Now all works. Thanks!
[Samsung Galaxy Tab A series Questions & Answers] layman22:
Dear retiredtab

Been installed and made a little test with your build.

The installation was easy with no issues (used vyrsis latest TWRP)

I'm using the tab for watching movies mainly, this oldschool HW is not really good for any more serious tasks.

BTW made a little test on FB browsing and got random crashes both using the stock browser and also with Via.

With Vyrsis Lineage build was the same issue.

The tab received a fresh security patch, I can watch movies furthermore, so I'm happy with your build and thank you so much for your efforts to made a rom for us :)
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
The stock "Jelly" browser included with LineageOS is problematic. It's never been reliable and can crash easily. I have never used Via.

I find Brave browser pretty much rock solid, but then I don't visit the same sites as you probably.
[Samsung Galaxy Tab A series Questions & Answers] layman22:
Never heard about Brave, but I'll test it, thanks ✌️

Been using Via few years ago, and that's also nice and never had any issues with that.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
New January 2021 build at

retiredtab - Browse /SM-T550/BETA at SourceForge.net

sourceforge.net

Release notes for Jan 15, 2021

1. Jan 5 security patches.

2. Whatever LineageOS changed since last Dec 2020 update.
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
I tested all your ROMs now from the first Version.

For me it is full functional and I can use it as daily drivers.

Some times my browser crahes ( I use opera mini in private mode with VPN )

In the moment I try to find some setting were the crashes come from.

But that is not a main problem !!!!!!

Thx for your work.

I'm still waiting for LOS 18 in the future.😁
[Samsung Galaxy Tab A series Questions & Answers] Schaagi:
New image from Jan. 15th installed and working now for 3 days without any issue. Thank you (y):)

Best regards

Schaagi
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
When it crashes, stop doing whatever you are doing, plug tablet into computer and type in

adb logcat > crash.txt

The logcat may indicate where the problem is. Or alternatively download a logcat app like

Logcat Reader | F-Droid - Free and Open Source Android App Repository

A simple app to view logs

f-droid.org

and grant it root permissions to read logs. When it crashes, look at the logs.

I tried repo sync 18.1 yesterday since it finally fixes the adb logcat bug, but now compilation breaks. When compilation worked, I got stuck at the boot animation. I probably won't try 18.1 again until March. Even for those older devices that run 18.1, there are still problems and some people are saying gcrapps is not working properly.

For 2021, I'm trying to degoogle so getting gapps working is not a priority for me if I can get 18.1 working.

My P550 is no longer my daily driver. I'm working on SM-T700 and SM-T800 and have been since Christmas time. These 2 will be my focus for the next few weeks ahead.
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
Yes, gapps makes problems on LOS 18. Its better to Bitgapps or Mindgapps.
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
If got 2 S4 mini ( 7years old ) and on both runs LOS 18.1 really fine.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Arco68 is Arne Coucheron. He's listed as a committer at

LineageOS contributors | LineageOS Wiki

wiki.lineageos.org

https://xdaforums.com/t/rom-i9190-i9192-i9195-unofficial-11-0-0-lineageos-18-1-for-s4-mini.4189967/

I'm nowhere near Arne's knowledge and skill. Arne could probably take 1 day and get 18.1 up and running on T550.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
The Samusng "A" tablet series 2015-2016 which includes the SM-T350 and SM-T550 + variations has NEVER had an "official" build from LineageOS team. Most of the unofficial builds starting with 14.1 had non working audio, broken bluetooth, etc, etc. Same for 15.1. It wasn't until 16.0 that audio, bluetooth, etc were finally working.

With 17.1, most things work, but my roms will likely never be official. There's a lot of work to make them official and it requires more than 1 person working on it.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
@bierma32. when trying to get 18.1 up and running, I was looking at the github repos from people who already have it working including Arne.

PS. When I did use my P550 with opera mini to try and reproduce your crash problems, I gave up using opera mini because it doesn't render github pages correctly when I was trying to do the above.
[Samsung Galaxy Tab A series Questions & Answers] bierma32:
At is all OK , its up to you if you want to do this and I like your work what you have done on this Build for our Tab..

And This Build is for me full use able.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
For those who want to turn off the on screen navigation keys, go to settings, system, advanced, gestures, system navigation, gesture navigation.
[Samsung Galaxy Tab A series Questions & Answers] ncmonteiro:
Hi. First, thanks for this great ROM. Great job.

Bluetooth connects, and i can control the músic APP with my headphones. Start, stop, next song, etc. But the sound only plays in the speakers.

Does this happen to anyone else?
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
I have no means to recreate this as I have no bluetooth devices. If someone else can verify the above and see if this is also a problem with virsys' rom, then let me know.

Before the problem, connect your microusb cable to tablet and usb to computer. Open a shell.

adb logcat -c
adb logcat > bt-not-working.txt

Then do the bluetooth thing. After problem occurs, hit Ctrl-C in shell and uploaded bt-not-working.txt. A properly captured log might show the problem.
[Samsung Galaxy Tab A series Questions & Answers] ncmonteiro:
Thk. I'll try that.

Also, when playing chess, and the APP is performing an analisys of the game, sometimes the APP crashes. I guess too much computing going on.
[Samsung Galaxy Tab A series Questions & Answers] ncmonteiro:
Hi there. Here's the log.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
So again, one of the benefits that T550 users get is my work and familiarity with the SM-T350. There was a problem with bluetooth over audio in this thread.

https://xdaforums.com/t/rom-sm-t350...id-10-galaxy-tab-a-8-0.4158163/#post-83438783

fix audio via bluetooth · Nubianprince/android_device_samsung_msm8916-common@1c2fec3

Contribute to Nubianprince/android_device_samsung_msm8916-common development by creating an account on GitHub.

github.com

so I made this change to the manifest.xml

<!-- nubianprince fix for no audio via bluetooth is to remove this hal
<hal format="hidl">
<name>android.hardware.bluetooth.audio</name>
<transport>hwbinder</transport>
<version>2.0</version>
<interface>
<name>IBluetoothAudioProvidersFactory</name>
<instance>default</instance>
</interface>
<fqname>@2.0::IBluetoothAudioProvidersFactory/default</fqname>
</hal>
-->
<!-- add android.hardware.bluetooth because nubianprince has it in his manifest -->
<hal format="hidl">
<name>android.hardware.bluetooth</name>
<transport arch="32+64">passthrough</transport>
<version>1.0</version>
<interface>
<name>IBluetoothHci</name>
<instance>default</instance>
</interface>
</hal>

This is the only change since the last release (no repo sync) and I booted the beta bluetooth image on my P550. Again, I do not have the T550 and no way to test if this patch works as I have no bluetooth headphones or speakers to verify.

The possible fix for bluetooth audio is named bluetoothaudio-UNOFFICIAL-gt510wifi.zip and found at

retiredtab - Browse /SM-T550/BETA at SourceForge.net

sourceforge.net

@ncmonteiro, Let me know if it works. If yes, I will add it to the Feb 2021 monthly patch.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
@ncmonteiro, I don't support apps, but if you get an adb logcat (see previous instructions), I will take a look.

BTW, what chess app?
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
If someone else with bluetooth audio can try bluetoothaudio-UNOFFICIAL-gt510wifi.zip and let me know if it works or not, that would be great. That is, see if bluetooth audio fails on the current imeage, then try the newer bluetooth image.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Just to answer my own question re virsys, his manifest.xml at

android_device_samsung_msm8916-common/manifest.xml at lineage-17.1 · VirsysElectron/android_device_samsung_msm8916-common

Common MSM8916 tree for Samsung devices. Contribute to VirsysElectron/android_device_samsung_msm8916-common development by creating an account on GitHub.

github.com

shows no hal entry for android.hardware.bluetooth.audio so his rom might work?
[Samsung Galaxy Tab A series Questions & Answers] doug888:
Hi, been using your ROM for a couple of weeks with no problems apart from Bluetooth. It pairs up and connects to the speaker but no sound comes out. Just flashed your new bluetoothaudio-UNOFFICIAL-gt510wifi.zip but it behaves in exactly the same way for me, still no sound.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
@doug888, can you get an adb logcat as described earlier?

I don't have any bluetooth speakers at home to test and debug this myself.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
What would also help if you had another working device that properly streamed music over bluetooth and get an adb log from that device. That way, at least there is a comparison of a good working device vs non working device log that might give some clues.
[Samsung Galaxy Tab A series Questions & Answers] doug888:
Ok here are the logs.

Note: I'm not using GApps on the T550, on the Moto G5 I've used for the comparison I have MicroG installed, if this makes any difference.
[Samsung Galaxy Tab A series Questions & Answers] ncmonteiro:
I've installed the suggested ROM and still the same problem. Installed on top and a clean install.

The same issue is detected on crdroid 10.

About the app, is lichess and it occurs when analysing a game. Sometimes when playing.
[Samsung Galaxy Tab A series Questions & Answers] DjLeleX:
Hey,

thanks for your work on this rom.

There's no way to make the rom bootable from the SM-T555 (the lte one) that has the same spec?

Cheers,

DJLeleX
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
Again, I don't have the T550 and certainly not the T555. You can try the T550 rom on the T555 by removing the assert statements in the rom zip file.

Open up the zip file, goto META-INF, com, android, google, android, updater-script. Use a text editor to remove the assert statements so that ui_print is the first line. Save the updater-script file and resave the zip file.

That should allow you to flash the T550 onto the T555. I suggest you use TWRP 3.3.1. If there is no T555 TWRP, try the T550 TWRP.

If it does work, LTE isn't going to work. If LTE does work, but calls are dropped, volume is low, distorted, I will not answer or even look at any LTE type probems.

Again, I have not tested any of this. You do so at your own risk and you may have a bricked tablet afterward.
[Samsung Galaxy Tab A series Questions & Answers] retiredtab:
For now, I will add audio over bluetooth to the "what's not working" list on post #1. I may revisit this later when time permits.
[Samsung Galaxy Tab A series Questions & Answers] glennza:
Hi, firstly thanks for this ROM, it's working well for me so far.

I did want to turn off the softkeys but for some reason all I've got under Gestures is Jump to Camera and Prevent Ringing.

When I first click on Gestures I can see some other menu items but they flick up and then disappear immediately. Don't know if it's something I've done? Also, my recents button doesn't work. If I remap it to open Google Assistant for example, it works. Set it back to Recent Apps and nothing! Maybe I just need to reinstall.