[ROM][OFFICIAL][13] LineageOS 20.0 for the SM-T290 (gtowifi)

[blazzer12]

No, no custom stuff can be installed, including any type of ROM.

Sorry for repeated questions but I am curious: When I go to developers settings it's showing the "OEM Lock" as "bootloader already unlocked". Even then it means only firmware form Samsung can be flashed right? NO GSI Roms?


I wonder why Samsung bothered to enable Treble on T295 if they just mean to lock out any possibility for installing GSI ROMS.

​

 

[lifehackerhansol]

How do I get from the original version of this ROM to the current version? I have the 2-28 and I am rooted, but no TWRP...
Finally got it. thanks. very unfriendly...
BTW: Dirty flash (over Jan release) worked fine

some people really think I'm here all day lol

 

[xperiazu21]

Sorry for repeated questions but I am curious: When I go to developers settings it's showing the "OEM Lock" as "bootloader already unlocked". Even then it means only firmware form Samsung can be flashed right? NO GSI Roms?


I wonder why Samsung bothered to enable Treble on T295 if they just mean to lock out any possibility for installing GSI ROMS.

​

Yes, the android 9 bootloader (version 3) is currently required to boot any custom ROM on the T295.

But since a certain version of the official android 10, the bootloader version has been upgraded to 4, resulting in a bootloader that cannot be lowered back to android 9.

 

[tennessee_titan]

You could say that, but not everyone here has the time at every moment. So, not everyone will reply in just a day.
Oh, and congrats with your upgrade!

Tablet operation unfriendly, not XDA....
Sorry

 

[default_user8]

Quick question, does the GPS not work?

 

[Minionguyjpro]

Tablet operation unfriendly, not XDA....
Sorry

Oh, ok. Miss understood.

 

[CTTKDKing]

I'll give it a try after I get past my mid term this week

Got past my mid term and updated to the 3/21 build. Still no auto rotate. Sensor calibration app I have on here shows the accelerometer working. At a loss.

 

[Minionguyjpro]

Quick question, does the GPS not work?

No, because this was made for an SM-T290 which has no LTE and GPS, although it works on the SM-T295.

 

[retiredtab]

No, because this was made for an SM-T290 which has no LTE and GPS, although it works on the SM-T295.

GPS definitely works on the SM-T290 (wifi only) model. Here's the code for SM-290

https://github.com/LineageOS/android_device_samsung_gtowifi/blob/lineage-20/device.mk#L103-L107

The SM-290 has no LTE.

 

[default_user8]

Thanks,


I'm not sure what was going, but Waze was not working at all(no map and no location) when I first installed it on this tablet. That's what prompted the question about the GPS, but after a reboot everything seems to be working now. This tablet is replacing an older Tab A that I'm using as an interface for my radio in my F150.

 

[lifehackerhansol]

Got past my mid term and updated to the 3/21 build. Still no auto rotate. Sensor calibration app I have on here shows the accelerometer working. At a loss.

Please provide a log: https://wiki.lineageos.org/how-to/logcat. I'll try to look at this when I am not crushed in exams.

That said, it's working just fine on my end...

 

[CTTKDKing]

Please provide a log: https://wiki.lineageos.org/how-to/logcat. I'll try to look at this when I am not crushed in exams.

That said, it's working just fine on my end...

Appreciate that. I've attached the logcat.txt file. No rush. It's not debilitating. Would be nice to figure out what's what though so thanks a lot.

 

[retiredtab]

I've attached the logcat.txt file.

There's no attachment in your post. For some reason, xda doesn't seem to allow .txt attachments or there's a bug. Zip your attachment and upload it again.

 

[CTTKDKing]

There's no attachment in your post. For some reason, xda doesn't seem to allow .txt attachments or there's a bug. Zip your attachment and upload it again.

Sorry about that. Been a long time since i've done any of this stuff including actually posting on XDA. lol

 

[default_user8]

I can't seem to find it, but did I see there's a way to skip the "warning unlocked bootloader screen"?

 

[Minionguyjpro]

I can't seem to find it, but did I see there's a way to skip the "warning unlocked bootloader screen"?

This is actually not completely relevant to this thread though. I thought it wasn't possible anymore, as all firmware files (including the bootloader, which keeps the warning) are encrypted and can't be edited in a way.

 

[lifehackerhansol]

Sorry about that. Been a long time since i've done any of this stuff including actually posting on XDA. lol

I'm finding nothing of interest in this log, unfortunately.

I implore you to double check with the stock ROM. (for obvious reasons, do NOT flash the T290XXS4CWA1 firmware, or you will be permanently locked out of custom firmware. Use T290XXU3CVG3 specifically for testing.)

 

[CTTKDKing]

I'm finding nothing of interest in this log, unfortunately.

I implore you to double check with the stock ROM. (for obvious reasons, do NOT flash the T290XXS4CWA1 firmware, or you will be permanently locked out of custom firmware. Use T290XXU3CVG3 specifically for testing.)

When i find some time to flash that, i'll give it a try. For the purposes of the tablet it's not a big deal. It's too slow of a device to use for much more than the reader functions i use it for. Thanks for looking into it.

 

[antharys96]

Is it possible to downgrade from bootloader version 4 back to bootloader version 3? If I remember correctly, we flash the bootloader through Odin to even use custom roms... I'm heavily disappointed by this decision from Samsung. I bought a second-hand tab a (really cheap) but didn't check for the bootloader version at the spot.

 

[Minionguyjpro]

Is it possible to downgrade from bootloader version 4 back to bootloader version 3? If I remember correctly, we flash the bootloader through Odin to even use custom roms... I'm heavily disappointed by this decision from Samsung. I bought a second-hand tab a (really cheap) but didn't check for the bootloader version at the spot.

Sadly, it is not possible to downgrade, meaning it is impossible for that tablet to flash any custom stuff on.