[Galaxy Tab S2 Android Development] engine95:
Synapse, Wireguard, Battery Charging Control and other infos

A couple little things for now:

The first time you install this kernel, you will lose Wi-Fi. It's unavoidable. Just set them up again and all is good. It my take a couple reboots.

and

SYNAPSE Kernel Tuner​

Well, because Synapse is built in now, here's some needed info on it:

Synapse is an awesome and custom built kernel tuner. It can do so much more than a lot of other tuners. And because we have Exynos processors, it's about the only one we can use. But it can create a lot of problems getting to work. Hence this post. :silly:

I decided to make this built in instead of a flashable add on. It's actually easier and less invasive to do it this way.

UCI, is what Synapse uses to work. It's built into the ramdisk. I've added a lot of tunables and may add more later.

Now for the fixes and problems you WILL run into:

If you have issues, make sure to check out these threads. As they will probably have better info about Synapse issues. https://xdaforums.com/showthread.php?t=2736986 and https://xdaforums.com/showthread.php?t=3558888

No UCI support detected These are the famous words you WILL run into.

When will this show up?

When Synapse is first installed

On reboot

When you've pushed your Tablet too far

The fixes:

On first install from the Playstore. You will need to go to Settings>Apps>Synapse>Storage. Then select "Clear Cache", THEN "Clear Data. In that order!!

You may have to backout to Settings and do it one or two more times. You want the numbers for cache and data at "0".

On reboot: This usually works unless you've messed up the settings or flash another kernel

On reboot select "Menu" and "Close all".

Open Synapse and hit "CANCEL" to have your last settings applied. (I know it's not normal but it works)

Close synapse, and reopen it to make sure of settings. (If "apply or cancel" don't show up at the top, you're good to go.)

Worst case scenario and for flashing new kernel:

You will need to go select the "MENU" button and Close all. Next go to Settings>Apps>Synapse. Select "Force stop". Select "Storage". Then select "Clear Cache", THEN "Clear Data. In that order!!

You may have to backout to Settings and do it one or two more times. You want the numbers for cache and data at "0".

If you follow the above, Synapse will work. It hasn't failed me in over 50 tests, probably more. :silly:

Battery Charging info - Removed on V1.5 These Tabs are starting to get old ​

I've added Battery Charging Control to the Kernel and Synapse. MAKE SURE YOU KNOW WHAT YOU ARE DOING BEFORE CHANGING IT'S SETTINGS!!! IT CAN RUIN YOUR TABLET!!!

If you don't touch it or don't use a Tuner, then all is good

It has about every adjustment and charger possible. BUT...

1. Not all chargers can handle the load you may put on it

2. The Battery may not handle the load you may put on it

3. Just changing Cables or the Charger will change how your Tablet charges. With the stock charger, if you change the cable, it'll charge at a different rate. So be careful

4. Charging your Tablet too fast can overheat and possibly EXPLODE the Battery!!!!!

5. Samsung has made a lot of changes to the battery with the last few updates. So there may be some safety features beyond my control. Settings may not stick.

V1.6 NOTES and things to know:

Restarting Synapse will take about 5 secs. To make sure things settle.

You will need to restart Synapse to see saved kernels and profiles. Use the button to restart it.

If you use the "Optimize button", just leave your Tab alone for about 5min for it to settle. File Managers won't work until then.

That's all I can think of at the moment.

WireGuard VPN​

Read about it here: https://www.wireguard.com/

XDA Thread here: https://xdaforums.com/android/development/wireguard-rom-integration-t3711635

For install and use, read here: https://xdaforums.com/android/general/guide-how-to-wireguard-android-ubuntu-t3723544

Download the "WireGuard" app from the Playstore.

I used Azirevpn. Just follow the link on the install above. Create your account. You'll get an email to confirm. Sign back in and select "WireGuard" for your config. Open WireGuard app, select the + and "create from file or archive" select the config from azire. Done

WireGuard IS NO LONGER FREE!!. And be aware that WireGuard is still under development.