[Galaxy Tab S Android Development] ¿GotJazz?:
Hi, guys!

I'm posting my first LiquidSmooth build for the SM-T800. I've played with it for a few days, and it looks nice & stable. Performance is really nice. Additionally, I'm getting what looks like a few weeks of standby power after making a few mods / additions (details below).

I haven't been able to get the SM-T805 / SM-T700 / SM-T705 ROMs to make it through the build process yet. When I get those built, I'll post those as well. Please be patient ... This is a learning process for me. :)

I would highly recommend doing a clean installation, considering that quite a few months have passed by since the last LS release by [MENTION=4222965]deadman96385[/MENTION]. If you run into any problems trying a dirty flash, go back and do a clean flash.

NOTE: I'm building the LiquidSmooth ROMs started by deadman96385 for you guys and I'll be happy to help out wherever I can. However, I'm not a developer, so I won't be able to fix any code issues.

IMPORTANT PRE-INSTALLATION NOTES:

You will need to load the most recent version of GApps to prevent the AOSP Keyboard from constant FCs. Get your daily GApps build here. I always use the nano GApps, and add whatever additional Google stuff I want afterwards (which isn't much). This keeps my battery drain minimized.

If you currently have Xposed for Lollipop installed, you will need to remove it in Recovery Mode before flashing this ROM, or you will probably end up with bootloops.

Experienced User Installation Instructions:

Copy files to the tablet.

Reboot to Recovery.

Backup your current installation.

Uninstall the Xposed Framework if you have it installed.

Factory Reset (optional, but highly recommended).

Install ROM and GApps.

Wipe your Caches.

Reboot.

Step-by-step Installation Instructions (using the latest version of TWRP):

If you have Xposed for Lollipop installed, follow the Framework uninstallation instructions in that posting.

Copy the ROM Zip, optional MD5 file, and GApps Zip files to your tablet in an easily findable directory.

Reboot into Recovery Mode

Do a full backup of your current ROM.

Press the Home button

Press the Wipe button

Do a Factory Reset

Press the Home button

Press the Install button

Browse to the ROM Zip file and select

Press Add more Zips

Browse to the GApps Zip file and select

Swipe to start flashing

When the flashing has completed, press Wipe Cache / Dalvik Cache

Reboot System

Enjoy!

Known issues:

The Physical Keyboard status is apparently not being set properly when a Bluetooth Keyboard is connected As a result, the AOSP Soft Keyboard does not get hidden when using a Bluetooth keyboard.

Here are the steps I followed to get 2 weeks+ (I've seen 21 days) of battery stand-by (Your results will vary, of course):

I don't install any social media apps on my tablet. Installing stuff like Facebook and other social apps that always wait for updates will drain your battery under the best of circumstances.

Settings >> Wi-Fi >> Menu >> Advanced >> Keep Wi-Fi on during sleep = Only when plugged in

The Android Battery tool is useless to see how you are using your battery. Install Battery Monitor Widget so you can monitor what's really going on with your battery usage. I use the "Standard mA" setting for my mA retrieval method, and turn on the mA in History setting during the initial BMW setup. It's also a good thing to install the Statistics helper if you want more info.

Register for Power Nap on Google+ Install it when you get accepted.

Install the sdk22-arm version of Xposed for Lollipop

Enable the Power Nap module in Xposed.

In Power Nap, turn on Endurance Mode.

Tap to the left of Endurance Mode to add "whitelisted apps" that will still run when the tablet is turned off. I currently only have Battery Monitor Widget and Wakelock Detector added to be active in standby.

Settings >> Performance >> CPU >> Schedule workqueues on awake CPU to save power = Disabled and Apply on boot = Enabled.

Yes, I know this sounds like it shouldn't have an effect or even improve your deep sleep current drain, but it made a one of the biggest impacts to a low standby current on my SM-T800.

Settings >> Display >> Ambient Display = Disabled

Thanks to:

The Liquidsmooth Development team

The friendly folks on the LiquidSmooth Google+ developers page

[MENTION=5105835]Cl3Kener[/MENTION] and his "Develop Now!" Guild

and, [MENTION=4222965]deadman96385[/MENTION], without whom this ROM build would not have been possible. :)​

SM-T800 ROM Download: LS-LP-v4.1-layers-2015-10-29-liquid_chagallwifi.zip

SM-T800 MD5 Download: LS-LP-v4.1-layers-2015-10-29-liquid_chagallwifi.zip.md5sum

GApps Daily Builds: Here.

Let me know how it goes!

Cheers,

¿GotJazz?