[ROM][T320][T325][Android 13] Unofficial LineageOS 20.0 Nightlies Tab Pro 8.4 Wifi/LTE (mondrianwifi/lte)

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Was it difficult to change the battery? I found it in my country (Brazil) through the MercadoLibre platform with better prices than Aliexpress (and faster for being in the country).
done it several times on mine changing batteries to and fro.
Once done, I didn't glue screen back to body again, it's just fixed by the bumper case.
 
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kmmo

Member
Dec 27, 2022
42
1
On T325 battery matters, I bought and replaced the battery (T4800U T4800E) with a US$10 version from Aliexpress. Before battery replacement on KitKat4.4, it will bootloop whenever the original battery falls to 80%, and 100%->80% can only last 30mins of use. This is the EOL experience in Nov 2020 for a battery that has been in use since Aug 2014.
May I know the purchase link?
 

kmmo

Member
Dec 27, 2022
42
1
Thanks to the hard work of the developers, this OS is amazing and the usability is amazing with little inconvenience.. However, a single Wi-Fi stability patch seems to be necessary. There are frequent disconnection issues.
 
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arrakis_23

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Jun 3, 2021
6
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May I know the purchase link?
The item has been delisted. That is also the problem with Aliexpress, the links last no longer than 6-12 months. Advertising warranty claims also should be taken with a pinch of salt, how can one claim warranty if the listing disappears after 6 months?!

As one other user pointed out, if there is possibility of going local, it will be better than the Aliexpress option, at least there is a physical shop you can go to for after sales/warranty claims.

But the usual Aliexpress pointers apply, i.e. buy from the 5-star top rated sellers with the highest good reviews. Do not overpay for "high capacity" batteries, these are often fake.

For me, the US$10 battery was a small gamble, even if it did not last, I will not be too bothered as I was not sure future Lineage support will exist after 17. But we (T320/T325 owners) were fortunate that this has been extended to Lineage 20!

Again, many many thanks to @Valera1978 and @phoval!
 

The_8A

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Jan 31, 2023
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So I’m unable to download anything from the browser and trying to install anything from the play store says there is no space even though there is. Anyone have the same problem or know how to fix if?
 
So I’m unable to download anything from the browser and trying to install anything from the play store says there is no space even though there is. Anyone have the same problem or know how to fix if?
What does it say when checking storage in settings?
Had that either on my T325 or a different device as well.
Somehow then the partitions got mangled up.
I'm not sure how I solved it then.
I either reinstalled stock firmware with or without repartitioning, or just reflashing LOS did it.
You did "format data" of course, did you?
 

The_8A

New member
Jan 31, 2023
2
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What does it say when checking storage in settings?
Had that either on my T325 or a different device as well.
Somehow then the partitions got mangled up.
I'm not sure how I solved it then.
I either reinstalled stock firmware with or without repartitioning, or just reflashing LOS did it.
You did "format data" of course, did you?
When I open the storage setting it tries to los up but crashes on me. I’m not sure if I did the format data thing but I’ll try to reinstall and see if that fixes it. And I’m not sure if I did the format data part but I’ll check that as well.
 

kmmo

Member
Dec 27, 2022
42
1
I have a question for @phoval. There are two problems: WIFI stability improvement and automatic brightness learning improvement. Wi-Fi sometimes drops, and it doesn't easily reconnect automatically after it is disconnected. As for brightness, the minimum brightness is too bright, and the shape of the bar is inconvenient to adjust little by little. It doesn't seem to learn much in auto-brightness mode. This OS version is amazing and I appreciate it, but I feel only these two inconveniences in use. So much so that this is a great rom, but could it be improved?
 

kmmo

Member
Dec 27, 2022
42
1
Does anyone know of an option to disable notifications when the screen is locked (screen off)? I want to be notified only when the screen is on or unlocked. because of battery consumption
 
Does anyone know of an option to disable notifications when the screen is locked (screen off)? I want to be notified only when the screen is on or unlocked. because of battery consumption
Screen is settings -> display -> lock screen -> ambient display
Audio is just notification volume/do not disturb.
Edit: actually, are you just wanting the screen not to turn on or are you specifically wanting sounds when using it?
 
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kmmo

Member
Dec 27, 2022
42
1
Screen is settings -> display -> lock screen -> ambient display
Audio is just notification volume/do not disturb.
Edit: actually, are you just wanting the screen not to turn on or are you specifically wanting sounds when using it?
I need to receive notifications like Messenger, but only when the screen is on or in use. I hope the screen does not turn on due to notifications only when the lock screen or screen is off
 

kmmo

Member
Dec 27, 2022
42
1
widevine L3 is common for custom roms
widevine L3 problem no workaround exists? I'm using Magisk and I've tried several methods, such as installing modules through Google, but I'm still having problems with OTT quality. Is this a hardware mechanical unsupported problem that cannot be resolved?
 

kmmo

Member
Dec 27, 2022
42
1
thanks to the developer.
Almost everything is great, but since it's a custom OS, it would be nice to have the option to delete/modify default apps. For example, we would like to provide an option to uninstall or not install default browser apps, Audio FX, Music, and other default apps. Some except for audio fx can be changed to disabled, but a fundamental selection option is required.
As this is an old device, we hope to provide a setting that allows you to turn off the apps and features you don't use or need as much as possible.Looking forward to the update
 
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Kakakrroto

Member
Jan 13, 2023
8
0
Good afternoon people!

Good morning guys!

I have LineageOS 20.0 on my samsung galaxy tab pro 8.4. I saw that the screen has a resolution of 1600x2560 pixels, that is, a ratio of 10:16. I took some wallpapers and adjusted them to that aspect ratio, but when I set them as wallpaper the images seem to be zoomed in and become larger than they should be and I can't adjust them. This way cuts occur in the wallpaper. In the image gallery and through the Perfect Viewer application, the images are displayed correctly. The problem only occurs when setting the image as wallpaper.
Is there any solution?

And thanks to the developer and team for the great work!
 

rientek

New member
Feb 17, 2023
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I came from the official LineageOS 13 build, updated TWRP and installed a fresh LineageOS 20 + BiTGApps.
Works like a charm, thank you very much!
 

kmmo

Member
Dec 27, 2022
42
1
Updates are also being made recently. Thank you very much to the developers. However, I would like to be able to check the update contents to see what has been updated.

It may be just my opinion, but the only downside of this OS is WIFI stability. The WIFI drops often and doesn't even retry to connect automatically again. or fail. Hopefully a patch for this comes soon.
 

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  • 2
    Thanks @phoval for this great rom.
    The tab was lying around for a long time now because of poor battery life and the very sporadic wifi.
    I used it with different roms for quite some time, cyanogen, resurrection remix and lineage 16. With ressurection and lineage 16 I was never able to get it to work the way I wanted it. With a new phone in 2021 I used it less and less.
    So lately I suddenly had it in my hands again and thought that it would be a shame not to give it another try, and using the small phone display even at home was a bit cumbersome too.
    So now I got a fully working, nice little tablet. Battery time is aboslutely great (probably did not have it fully charged when installing the lineage 16) Wifi works all around the house without any connection or reconnection problems. Bluetooth works, so I am typing this on a physical full size keyboard.
    And I finally tried it to get along without any google stuff at all. And its just nice! No clutter, no google knowing everything, with f-droid and aptoide there is no problem getting the few apps together that I actually use on this thing.
    And its running smoothly!! A 9 years old tablet thats still perfectly fine for media, and web surfing stuff. It pays off to buy quality products. (The phone I got in 2021 was a necessity because the provider switched off 3g, and my iphone 4s was not usable after this anymore..)
    Perfect really! Love it!
    2
    Doesn't the t320 device or Lineage OS support the 80 mhz frequency band? It's not an exact fact, but after changing the Wi-Fi frequency band to 20/40mhz, it seems that the disconnection was noticeably reduced. I don't know if it will be helpful, but I'm sharing it for similar people who suffer from Wi-Fi disconnection.
    Imho you're mixing up frequency with channel width.
    The frequency band is either 2,4 or 5 GHz.
    On 2,4Ghz the channel width is 20 and 40 MHz.
    On 5GHz it's 20, 40, 80 160MHz.
    Both bands are working for my T325.
    BUT as recommended before my Fritzbox has separate SSIDs.
    In my router there's no option to set the channel width.
    Btw I didn't encounter Wifi probs.
    2
    I tried to reproduce the the WiFi connection problem the last few days with my old backups from LOS 17 / 18 and 19.
    It was not possible for me to run in the problem..

    I recommended anyone who has WiFi problems, go back to the Stock Software
    and than clean reinstall the LOS Version..
    I'm 100% sure that is an router settings or connection problem.
    1
    That's right. Phoval and the developers are great and thank you. However, frequent Wi-Fi disconnection is fatal. I hope it gets resolved
    Did you tried to reset your Network settings ?
    Did you come from Stock or an other LOS Version ?
    Was the WiFi working.?

    Which TWRP you have installed ?
    1
    I found one my Backups the old WiFi driver from LOS 17
    Take an full backup , than you can try to flash this, but it is one your owned risk.
  • 17
    I'm not responsible for any damage to your device of any sort.
    By flashing this, you take responsibility of anything that happens.
    Process at your own risk!


    If you want to check - please make backup. Better to store all partitions.

    What works

    • audio
    • bluetooth
    • brightness
    • call/LTE (mondrianlte)
    • camera
    • DRM
    • OTA
    • video
    • wifi
    • wifi display

    What doesn't work
    • Back camera preview : wrong rotation on preview in default app Fixed build 20221204
    • SELinux Fixed build 20221130

    Instructions:
    0. Patched TWRP for FOTA : mondrianwifi / mondrianlte
    1. Factory reset if coming from another ROM.
    2. Install ROM
    3. Install GApps (optionally) [Recommended BiTGApps ARM 13]
    4. Install Magisk 25.2 (optionally)

    Sources & Changes:
    Device tree mondrianwifi
    Device tree mondrianlte
    Kernel tree
    Vendor tree mondrianwifi
    Vendor tree mondrianlte
    TWRP tree mondrianwifi
    TWRP tree mondrianlte

    Download:
    Note to users: I'm not responsible if you brick your tablet. See the disclaimer above.

    Contributors

    ROM OS Version: 13.0

    Version Information
    Status:
    Nightlies

    Created 2022-11-27
    Last Updated 2023-01-05
    6
    Build for mondrianlte is now available. All should work even LTE.
    Big thanks to @bmwdroid for helping test builds.
    4
    Hey all, thanks for this incredibly good ROM. It's really the best ROM ever for the tablet. If we can get the final settings adjusted, it would be a dream come true. Please, don't stop working on it - together we can get all the potential of our good old Tab Pro!!!!
    Imho it's finished for T325.
    Camera (both), Wlan WPA/WPA2 2,4 + 5GHz, mobile data, LTE, Bluetooth, speaker, headphones, mic, SD card 64GB, SELinux.
    Flashed with Bitgapps ARM v1.8 and Magisk.

    GPS idk as to wet outside.
    4
    Hey guys, any progress on the adoptable storage?
    If we get this last piece of the puzzle done, it will be the most perfect ROM EVER for the Tab.... for a Tab from 2014!
    Adoptable is not working. only crash occurs. Tried different things but haven't much time to look at it.
    microg is included in the new build.
    4
    my tabelt is still slow, even with this built. i did a factory reset. even my battery is draining extremely.
    @bierma32 what is zram_ boot.IMG. can you provide me that file? can i flash it in twrp?

    greetz
    Provide logcat.
    zram boot img was alpha kernel for test.
    The changes are includes since 2nd december build.