[ROM][SM-T500] Samsung Galaxy Tab A7 10.4 (2020) - LineageOS 19.1 (and TWRP 3.6.1)

[Hausemaster]

Will flame gapps work?

Yes

 

[Kudalufi]

Thanks!!
It finally works as intended
But there is no Gapps installed

Sounds like you installed a vanilla GSI, rather than one with gapps. Reports are that flame gapps does not work with Andy Yan's builds. I haven't tried myself as I use microG. You have two options:

1. Just use the right GSI. There are ones with gapps. I recommend https://sourceforge.net/projects/an...UNOFFICIAL-arm64_bgS-vndklite.img.xz/download
2. You can continue to use a vanilla build and install microG to have a replacement to some gapps services. You can use the Aurora store app for access to the Google stor apps and can install and use most any individual google app, though there are good non-google alternatives to most everything. But there are drawbacks. I'll post complete instructions if anyone is interested.

If you pick #1 then you should be able to just use twrp to dd in the new GSI (as per the OP's GSI instructions) then wipe dalvik and cache only, and then reboot. Don't think you need to wipe data. Do know that this will undo the brightness fix and any modules you've installed with magisk.

If you're going to use your tablet for real, then (if you haven't) I recommend getting the zram swap running as per instructions earlier in this thread.

 

[Hausemaster]

Steps
1) After installing V4A module, first open the app and press ok when it prompts you to install driver
2) It'll install the driver and will then reboot automatically
3) after reboot, open v4a app click on gear icon and enable 'legacy mode', after that go back and enable "Master limiter"
4) Download the file attached here and extract it using RAR app as anything other than that breaks the file, and also install a root browser from Play Store
5) Open your root browser and then copy the extracted file to "Android>data>com.pittvandewitt.viperfx>files>Kernel"
6) After doing so, open the V4A app, then enable "Convolver", then tap on it,
7) it'll expand the option, there you'll see "Impulse response" and it'll be blank,
8) tap on it and it'll show you the name of the file you copied earlier, tap on it to select it
9) after this, a new option named "Cross channel" will appear under "impulse response"
10) set the cross channel percentage to "25%" (it should look something like this after you followed these steps)

View attachment 5612343

After this, try playing audio in landscape it should work fine...
PS: Please post the end result I'm interested to know if it works for everyone...

Guys, I got all 4 speakers working by setting cross channel to 100% after following steps 1 to 9 please try it and report back, please!

 

[Hausemaster]

Follow these in phh settings for Maximum chance for above fix to work!

 

[GyuminLeo]

Is there any roms other than LOS?
Or is there non gsi rom? Like installing it with the zip file?

And is there a way to change the phone model? Some of my apps depend on models

 

[Hausemaster]

Is there any roms other than LOS?
Or is there non gsi rom? Like installing it with the zip file?

And is there a way to change the phone model? Some of my apps depend on models

Don't change models, you'll lose some options from phh settings that are essential

 

[Kudalufi]

Guys, I got all 4 speakers working by...

I have all four speakers working now. The only thing that doesn't work is that the left/right doesn't rotate when the screen rotates. Does your fix correct that?

 

[Hausemaster]

I have all four speakers working now. The only thing that doesn't work is that the left/right doesn't rotate when the screen rotates. Does your fix correct that?

I don't think so

 

[GyuminLeo]

Don't change models, you'll lose some options from phh settings that are essential

Then stock it is for me

 

[Hausemaster]

Yes, though I advise not flashing magisk. The ROM is rooted and installing magisk will cause it to reboot a few minutes after boot. I'm still working on a fix for that.

Just out of curiosity, why does it do that though, did samsung add any service that watches for suspicious traces like magisk in our case?

 

[Kudalufi]

Just out of curiosity, why does it do that though, did samsung add any service that watches for suspicious traces like magisk in our case?

The ROM isn't properly rooted. It has a back door to root for the PHH settings to use. It doesn't a appear to allow apps root access.

Magisk doesn't seem to cause a reboot by itself. At least not v23 that I use. There is a problem when you have Magisk Hide enabled. If you enable Magisk Hide AND then reboot with it enabled, then the device will continue to spontaneously reboot about 90 seconds after each boot. It will do this until you disable Magisk Hide again

If you want to use Magisk Hide, you have to turn it on, activate it for the app you want to use, use the app, then turn off Magisk Hide before you reboot the device.

Other than Magisk Hide, everything else about Magisk appears to work.

 

[Hausemaster]

The ROM isn't properly rooted. It has a back door to root for the PHH settings to use. It doesn't a appear to allow apps root access.

Magisk doesn't seem to cause a reboot by itself. At least not v23 that I use. There is a problem when you have Magisk Hide enabled. If you enable Magisk Hide AND then reboot with it enabled, then the device will continue to spontaneously reboot about 90 seconds after each boot. It will do this until you disable Magisk Hide again

If you want to use Magisk Hide, you have to turn it on, activate it for the app you want to use, use the app, then turn off Magisk Hide before you reboot the device.

Other than Magisk Hide, everything else about Magisk appears to work.

For me though, it rebooted constantly even at the setup wizard itself and I'm pretty sure that magisk hide doesn't enable itself automatically on first run of the system so maybe it's because I used the Canary zygisk for root...

 

[MihirSahay]

Hey,Can someone help?My wifi isn't working on this build los 19.1 beta2.

 

[Jim in CA]

I installed Lineage 19.1 following the procedure in the OP. I loaded the stock ROM version specified via Odin before I started. The installation went well. But there were a few issues with the ROM. There is the issue with the brightness, which I can work around. Having TWRP boot back into TWRP unless you use the exit_twrp command is a PITA. These are well documented on here.

I also found issue with not being able to access files from my PC via USB. I also had a problem with accessing my OTG flash drive in TWRP. These were fixed by installing the SM-T500-GSI-kernel.zip file I found in another thread on here.

But my unresolved issue is with charging the tablet when the tablet is off. When charging, the tablet does not display the level of charge. The circle is empty. In addition, when I unplug the charging cable, the screen stays on this charging display, and will not shut off. I have to press the Power key for 10 seconds to get it to turn off the screen. Anybody else see this issue? It seems to charge normally when the tablet is turned on. I had the same issue with the previous Lineage 18.1 ROM by the same developer.

As a side note, I did try using the Updater in the syster instead of following the update procedure in the OP. It downloaded and installed, and worked! But the update did not include Gapps, and my MTP fix no longer worked. I installed the MindTheGapps and the kernal zip file again in TWRP, and that fixed both, updated to the 5-10-22 version of Andy Yan's GSI.

 

[Hausemaster]

I installed Lineage 19.1 following the procedure in the OP. I loaded the stock ROM version specified via Odin before I started. The installation went well. But there were a few issues with the ROM. There is the issue with the brightness, which I can work around. Having TWRP boot back into TWRP unless you use the exit_twrp command is a PITA. These are well documented on here.

I also found issue with not being able to access files from my PC via USB. I also had a problem with accessing my OTG flash drive in TWRP. These were fixed by installing the SM-T500-GSI-kernel.zip file I found in another thread on here.

But my unresolved issue is with charging the tablet when the tablet is off. When charging, the tablet does not display the level of charge. The circle is empty. In addition, when I unplug the charging cable, the screen stays on this charging display, and will not shut off. I have to press the Power key for 10 seconds to get it to turn off the screen. Anybody else see this issue? It seems to charge normally when the tablet is turned on. I had the same issue with the previous Lineage 18.1 ROM by the same developer.

As a side note, I did try using the Updater in the syster instead of following the update procedure in the OP. It downloaded and installed, and worked! But the update did not include Gapps, and my MTP fix no longer worked. I installed the MindTheGapps and the kernal zip file again in TWRP, and that fixed both, updated to the 5-10-22 version of Andy Yan's GSI.

The charging when tab is powered off is common for almost all of us, as, I have the same issue here..

 

[runswithascript]

1. You can continue to use a vanilla build and install microG to have a replacement to some gapps services. You can use the Aurora store app for access to the Google stor apps and can install and use most any individual google app, though there are good non-google alternatives to most everything. But there are drawbacks. I'll post complete instructions if anyone is interested.

I am interested in complete instructions for the most degoogled way to setup this ROM with as much working functionality as possible. Please share.

I see references to setting up MicroG without GApps during install and with, and I have been wondering if the latter means removing GApps post install or how it works exactly. Ideally I would use GrapheneOS but as not an option I would like to get as close to it as possible.

 

[sumur]

Can you still use double tap to wake ?

 

[Kudalufi]

I am interested in complete instructions for the most degoogled way to setup this ROM with as much working functionality as possible. Please share.

I see references to setting up MicroG without GApps during install and with, and I have been wondering if the latter means removing GApps post install or how it works exactly. Ideally I would use GrapheneOS but as not an option I would like to get as close to it as possible.

It's actually not all that hard to get microG on. The pain is that the LineageOS devs are allergic to including signature spoofing, so this has to get sorted first. That's 99% of the pain. Fortunately it's mostly doable with magisk modules:

1. Install Magisk if you haven't. I recommend version 23. Just copy the magisk apk to the ext sdcard and flash it like a zip with TWRP.
2. Enable signature spoofing. Do this by installing the magisk modules "riru" and "riru - LSPosed". When the latter is installed and yourv system restarted, you should have a LSPosed app. If you run it it will give you the option of hiding the app and in the settings you can create a shortcut. Once this is done, then install the LSPosed plugin "fakegapps" (version 2). You should now have signature spoofing.
3. Install the magisk module for microgG (microG Installer Revived)

Once this is all done, run microG and run its self check.

Remember, by default microG still talks to Google. It tries to limit the damage, but I suggest familiarising yourself with it. Also some of the location modules that are available for it are somewhat privacy invasive (OSM, for example, logs your IP and location with every address query if you use the Nominatim back end). I like that I can set it up to disable push notifications (which of course go through Google servers) and/or make it ask for permission every time an app tries to register.

You can use the Aurora store and get access to paid apps too. You can pick your level of engagement with Google.

Some other suggestions if you don't already:

• Use app manager from f-droid to block any trackers it finds on G-store apps you use. Do this every time you install an app. Some very few apps don't work with all their trackers blocked, but most do.
• Bromite is a good degoogled browser
• Magc Earth is a good real-time replacement for Googke Maps, though it's admittedly not as comprehensive.
• For a great offline map/navigation app (uses pre-downloaded maps) I highly recommend osmand (f-droid). You never have to worry about lifting cell signal again, you'll always keep navigating.

 

[Kudalufi]

Can you still use double tap to wake ?

Yes. Go to Settings-->PHH Treble Settings-> Samsung Settings and enable it there. I verified it works. I will note, I am now using the May 10 GSI, so if you're not then YMMV.

 

[sumur]

Yes. Go to Settings-->PHH Treble Settings-> Samsung Settings and enable it there. I verified it works. I will note, I am now using the May 10 GSI, so if you're not then YMMV.

Awesome thank you