I recently started using SPMC as my launcher and while it's really nice, I haven't figured out how to get back into the Fire TV's base settings (I'd like to pair a controller). Can I access the Fire TV's settings or maybe manually launch the Fire TV's settings or even the launcher through an adb shell am command?
Edit: I managed to pair my controller by launching the android 'Settings' app I had sideloaded a while back but I'm still curious if it's possible to launch Fire TV's default launcher via command line
furrySatan said:
I recently started using SPMC as my launcher and while it's really nice, I haven't figured out how to get back into the Fire TV's base settings (I'd like to pair a controller). Can I access the Fire TV's settings or maybe manually launch the Fire TV's settings or even the launcher through an adb shell am command?
Edit: I managed to pair my controller by launching the android 'Settings' app I had sideloaded a while back but I'm still curious if it's possible to launch Fire TV's default launcher via command line
Click to expand...
Click to collapse
Run the following to open the default home screen:
Code:
adb shell am start -n com.amazon.tv.launcher/com.amazon.tv.launcher.ui.HomeActivity
Or run the following command to load the Settings directly:
Code:
adb shell am start -n com.amazon.tv.launcher/com.amazon.tv.launcher.ui.SettingsActivity
AFTVnews.com said:
Run the following to open the default home screen:
Code:
adb shell am start -n com.amazon.tv.launcher/com.amazon.tv.launcher.ui.HomeActivity
Or run the following command to load the Settings directly:
Code:
adb shell am start -n com.amazon.tv.launcher/com.amazon.tv.launcher.ui.SettingsActivity
Click to expand...
Click to collapse
That's great thanks for the response! Your website is great by the way it's been the best resource there is since I got this thing.
Is there a way to turn on debugging on the fire tv where I can tail the log and see what it's running while I'm on it? For the sake of pulling commands if I wanted to add apps to advanced launcher or something
furrySatan said:
That's great thanks for the response! Your website is great by the way it's been the best resource there is since I got this thing.
Is there a way to turn on debugging on the fire tv where I can tail the log and see what it's running while I'm on it? For the sake of pulling commands if I wanted to add apps to advanced launcher or something
Click to expand...
Click to collapse
I'm glad you're liking the site. I've actually got to thank you. While figuring out those commands for you, I discovered a hidden debug menu. Writing up a post about it right now. Should be up shortly.
Run "adb shell logcat" to tail the log file. Use "CTRL+C" to exit.
There does not seem to be an official documented API to send commands to the Fire TV via IP. The interface obviously exists and is used by the Fire TV Remote app. Does anybody know how to control the Fire TV via IP?
attunezero said:
There does not seem to be an official documented API to send commands to the Fire TV via IP. The interface obviously exists and is used by the Fire TV Remote app. Does anybody know how to control the Fire TV via IP?
Click to expand...
Click to collapse
I need the same thing so I can control it via Tasker. Unfortunately, communication is encrypted and far from simple (I sniffed the traffic with IP captcher)
djsvetljo said:
I need the same thing so I can control it via Tasker. Unfortunately, communication is encrypted and far from simple (I sniffed the traffic with IP captcher)
Click to expand...
Click to collapse
Well you could try decompiling the android apk and see if you can figure out what it's doing.
rbox said:
Well you could try decompiling the android apk and see if you can figure out what it's doing.
Click to expand...
Click to collapse
Unfortunately, my programming skills end with block diagrams, Tasker at most.
---------- Post added at 04:46 PM ---------- Previous post was at 04:42 PM ----------
BTW, do you know someone that knows SMALI? I need another app that needs a very simple change - doubling the output of one function. I was able to de-compile and find the function in .java but i can't compile it back to class/.smali (a friend of my helped me on this a bit).
Hi,
I am also interested in ip control for the Fire TV. So are there any news on this topic?
Thanks,
Wolfgang
If anyone is still interested it can be controlled by sending keyevents via adb. adb debugging must be enabled on the firetv and adb must be connected then you can send commands like so:
adb shell input keyevent KEYCODE_MEDIA_PLAY_PAUSE
A list of keycodes can be found here: developer dot amazon dot com/docs/fire-tv/remote-input.html#input-event-reference
I believe you can also find commands to start apps and things too.
despian said:
If anyone is still interested it can be controlled by sending keyevents via adb. adb debugging must be enabled on the firetv and adb must be connected then you can send commands like so:
adb shell input keyevent KEYCODE_MEDIA_PLAY_PAUSE
A list of keycodes can be found here: developer dot amazon dot com/docs/fire-tv/remote-input.html#input-event-reference
I believe you can also find commands to start apps and things too.
Click to expand...
Click to collapse
Can you connect to ADB via network (wifi) ?
https://forum.xda-developers.com/fire-tv/themes-apps/windows-app-simple-adb-remote-t2898206
TimmyP said:
https://forum.xda-developers.com/fire-tv/themes-apps/windows-app-simple-adb-remote-t2898206
Click to expand...
Click to collapse
It looks like it will be hard to implement via Tasker (which is what I needed in first place). Controlling mine with Harmony and Tasker Plugin for Harmony
djsvetljo said:
Can you connect to ADB via network (wifi) ?
Click to expand...
Click to collapse
Of course.
Code:
adb connect IP_of_your_FireTV
https://forum.xda-developers.com/fi...adb-remote-t2898206/post55882391#post55882391
djsvetljo said:
Can you connect to ADB via network (wifi) ?
Click to expand...
Click to collapse
Yes, that was my point. Sorry, thought that was implied.
I wrote this shell script to make sending the commands a bit easier. I use it in OpenHAB to control my FireTV via my home automation system Maybe somebody else might find it useful.
Code:
#!/bin/bash
# script to execute a comand on a fire tv via adb
# $1 : ip or hostname and connection port of firetv e.g. Snug-FireTV:5555
# $2 : command to execute
# array of available commands
declare -A COMMANDS=(
["UP"]="19"
["DOWN"]="20"
["LEFT"]="21"
["RIGHT"]="22"
["ENTER"]="66"
["BACK"]="4"
["HOME"]="3"
["MENU"]="KEYCODE_MENU"
["PLAYPAUSE"]="85"
["PREVIOUS"]="88"
["NEXT"]="87"
["WAKE"]="KEYCODE_POWER"
)
if [[ ! -z $1 && ${COMMANDS[$2]+_} ]]; then
# check for existing connection and create new if none found
CON=$(adb devices | grep $1 -c -i)
if [ $CON -eq 0 ]; then
adb connect $1
fi
# execute command
adb -s "$1" shell input keyevent "${COMMANDS[$2]}"
fi
Hello,
I received a jail broken modified Fire TV gen 2 today and it boots into the AppStarter application which is very nice but what I did notice is now I have no access to the amazon store for my apps and I am trying to figure out how to put PlayStation Vue, Netflix and Amazon Prime video onto the box but cannot figure out out? Is there a way to just boot into the old stock app and access the app starter separately?
Thanks. Please forgive my noobness.
gman781 said:
Hello,
I received a jail broken modified Fire TV gen 2 today and it boots into the AppStarter application which is very nice but what I did notice is now I have no access to the amazon store for my apps and I am trying to figure out how to put PlayStation Vue, Netflix and Amazon Prime video onto the box but cannot figure out out? Is there a way to just boot into the old stock app and access the app starter separately?
Thanks. Please forgive my noobness.
Click to expand...
Click to collapse
If the default launcher has not been completely deleted, you can start it as follows:
Code:
adb shell pm enable com.amazon.tv.launcher
adb shell pm enable com.amazon.tv.launcher/.ui.HomeActivity_vNext
adb shell am start -n com.amazon.tv.launcher/.ui.HomeActivity_vNext
With older firmwares with this (not tested, I haven't used such old firmwares):
Code:
adb shell pm enable com.amazon.tv.launcher
adb shell pm enable com.amazon.tv.launcher/.ui.HomeActivity
adb shell am start -n com.amazon.tv.launcher/.ui.HomeActivity
With even older firmwares with this:
Code:
adb shell pm enable com.amazon.tv.launcher
adb shell pm enable com.amazon.tv.launcher/com.amazon.tv.launcher.ui.HomeActivity
adb shell am start -n com.amazon.tv.launcher/com.amazon.tv.launcher.ui.HomeActivity
gman781 said:
Hello,
I received a jail broken modified Fire TV gen 2 today and it boots into the AppStarter application which is very nice but what I did notice is now I have no access to the amazon store for my apps and I am trying to figure out how to put PlayStation Vue, Netflix and Amazon Prime video onto the box but cannot figure out out? Is there a way to just boot into the old stock app and access the app starter separately?
Thanks. Please forgive my noobness.
Click to expand...
Click to collapse
I also bought one of the jb firetv gen 2 launches straight into appstarter and no access to stock launcher which is smooth! The one I bought was hooked up with an alternative app store aptoide tv! I was able to get ps vue, netflix and even amazon prime there. Also a browser was available for me to get what I needed from any apk store. ****Even found channel pear in aptoide tv ?
I'm trying to freeze apps without root on my Fire TV Sticks V2. I used icebox to accomplish this task flawlessly on my 4K sticks. I just can't seem to get it to work on the V2 sticks.
The V2 sticks are running latest software Fire OS 5.2.7.2 (648595120) and the Icebox version I have that worked on my 4k stick is version 3.15.5 beta.
All I had to do on the 4K stick to get it to work was choose simple ADB mode and then enter the ADB command using the app Remote ADB on my phone.
Code:
adb shell sh /sdcard/Android/data/com.catchingnow.icebox/files/start.sh
This doesn't seem work on V2 sticks.
Does anyone know how to get this working or a way to freeze apps without root on V2 sticks?
JUSTINMARMER said:
I'm trying to freeze apps without root on my Fire TV Sticks V2. I used icebox to accomplish this task flawlessly on my 4K sticks. I just can't seem to get it to work on the V2 sticks.
The V2 sticks are running latest software Fire OS 5.2.7.2 (648595120) and the Icebox version I have that worked on my 4k stick is version 3.15.5 beta.
All I had to do on the 4K stick to get it to work was choose simple ADB mode and then enter the ADB command using the app Remote ADB on my phone.
Code:
adb shell sh /sdcard/Android/data/com.catchingnow.icebox/files/start.sh
This doesn't seem work on V2 sticks.
Does anyone know how to get this working or a way to freeze apps without root on V2 sticks?
Click to expand...
Click to collapse
A factory reset will re-enable the apps and a OTA will enable them, but here is what i use and i block OTA's
https://www.xda-developers.com/disable-system-app-bloatware-android/
For example -
adb shell pm disable-user --user 0 com.amazon.kindle.otter.oobe.forced.ota
adb shell pm disable-user --user 0 com.amazon.device.software.ota
adb shell pm disable-user --user 0 com.amazon.device.software.ota.override
Michajin said:
A factory reset will re-enable the apps and a OTA will enable them, but here is what i use and i block OTA's
https://www.xda-developers.com/disable-system-app-bloatware-android/
For example -
adb shell pm disable-user --user 0 com.amazon.kindle.otter.oobe.forced.ota
adb shell pm disable-user --user 0 com.amazon.device.software.ota
adb shell pm disable-user --user 0 com.amazon.device.software.ota.override
Click to expand...
Click to collapse
Doesn't seem to work on V2 sticks.
Does anyone know how to freeze or disable apps on V2 sticks?
JUSTINMARMER said:
Doesn't seem to work on V2 sticks.
Does anyone know how to freeze or disable apps on V2 sticks?
Click to expand...
Click to collapse
I guess i never tried it on the tank... i can look into it when i get some time. But question, why don't you just root it so you can have access to all this? It really inst hard and gives you so many options.
Michajin said:
I guess i never tried it on the tank... i can look into it when i get some time. But question, why don't you just root it so you can have access to all this? It really inst hard and gives you so many options.
Click to expand...
Click to collapse
I don't have access to pc or a Linux machine to get it done.
And what apps are safe to disable? Can you share what you disabled? I don't use anything from Amazon besides prime video...
fndpena said:
And what apps are safe to disable? Can you share what you disabled? I don't use anything from Amazon besides prime video...
Click to expand...
Click to collapse
This might help as far as what is or isn't safe to disable if you find a way to actually disable them.
https://forum.xda-developers.com/fi...bloatware-2nd-gen-fire-tv-stick-t3674629/amp/
JUSTINMARMER said:
This might help as far as what is or isn't safe to disable if you find a way to actually disable them.
https://forum.xda-developers.com/fi...bloatware-2nd-gen-fire-tv-stick-t3674629/amp/
Click to expand...
Click to collapse
Have you ever tried Greenify? Maybe it works...
fndpena said:
Have you ever tried Greenify? Maybe it works...
Click to expand...
Click to collapse
Let us know how it works out for you.
JUSTINMARMER said:
Let us know how it works out for you.
Click to expand...
Click to collapse
I decided to try ice box too...
I can install the app and I can even run the command to start the service. The console shows "success" and the app opens after I run the command.
But I can't select the "Simple ADB" option in ice box. I tried using the remote control, a keyboard and even a mouse... The radio button doesn't get "checked" and I can go to the next step.
Does that means the service is not actually running? Same thing for you or you're not even getting the "success" message for the adb command?
fndpena said:
I decided to try ice box too...
I can install the app and I can even run the command to start the service. The console shows "success" and the app opens after I run the command.
But I can't select the "Simple ADB" option in ice box. I tried using the remote control, a keyboard and even a mouse... The radio button doesn't get "checked" and I can go to the next step.
Does that means the service is not actually running? Same thing for you or you're not even getting the "success" message for the adv command?
Click to expand...
Click to collapse
Same. Endless loop.
Hi,
I recently bought a new Fire TV 4K that came with Version 6.2.8.1 out of the Box. It also has a Serial Number containing VM in it. According to some posts here this means, that it has some efuses blown and the USB Download Mode disabled in its bootrom, which makes it impossible right now to root or downgrade it.
The reason I need to downgrade is that I need to automate some tasks on the Fire TV for example with tasker. For exmaple I need the Fire TV to switch the Input at Boot automatically. It does this only when I press the home button. Automating this with tasker however requires the Accessibility Service, which Amazon has removed in current Versions of the Firmware. So the only solution is to root it or go back to older Firmwares, and both ways seem to have been blocked by AMazon right now.
Is this the latest information or are there solutions for this device to still root it?
And are there alternative ways to automate for example Home button press without root and Acessibility Service?
And which Fire Tv Stick can still be rooted right now even with the latest Firmware installed?
Any help would be appreciated.
According to this post, only versions with "VM190 or higher" have the fuse blown.
[UNLOCK][ROOT][TWRP][UNBRICK] Fire TV Stick 4K (mantis)
NOTE: There have been multiple reports of devices with serial numbers containing VM190 or higher being shipped with DL-Mode disabled in BROM. These devices cannot be unlocked using kamakiri. These devices do not show up at all on USB when...
forum.xda-developers.com
So maybe your unit has a s/n lower then VM190.
Yeah my Serial contains *VM081* but I bought it far later than the post you mentioned. Also that post was made before Version 6.2.8.1 was released and efuses burned, which apparently does not allow downgrading anymore. And the guy who found the exploit has not posted anymore since 2019.
My understanding is that the USB Download mode being disabled and the efuses blown are two different things.
I have not yet read any comment on wether you can root a fresh out of the box device that has Version 6.2.8.1 on it.
And additionally newer devices seem to have no USB Download mode.
Is there a way to check whether my devices efuses are blown or not? And whether my device has USB Download mode before I open and short the device. RIght now I can still send back the device, but not once I have opened it. I don't wanna find out after opening the device that I can not root it.
So before I open the Fire TV, I wanna know whether it is rootable or not. Otherwise I will send it back. I wanna know wether the rooting method does also work once the device has been updated to 6.2.8.1.
ALso it would help to know wether the efuses burning only is limted to the 4K model. In that case I could get a Lite or Version 2 of the Fire TV. Unfortunately I have not found any FAQ regarding such questions.
Spamm00r said:
My understanding is that the USB Download mode being disabled and the efuses blown are two different things.
Click to expand...
Click to collapse
No, it's most likely the same thing...
Spamm00r said:
Is there a way to check whether my devices efuses are blown or not?
Click to expand...
Click to collapse
Yes, you can short the stick, connect usb and watch in lsusb. It will show no sign of the stick if the efuse is gone.
You can also connect an USB TTL UART Adapter, while doing the shorting. Then the log shows you that the boot-process goes to halt.
Spamm00r said:
So before I open the Fire TV, I wanna know whether it is rootable or not. Otherwise I will send it back. I wanna know wether the rooting method does also work once the device has been updated to 6.2.8.1.
Click to expand...
Click to collapse
The root/unlock method based on BR DL-Mode (via shorting), will not work on any 4k stick running 6.2.8.0 or later, regardless of the serial number.
The new Lite Stick, the new fTV Stick and the newest fTV 4K-Max Stick are also BR DL-Mode disabled.
So its game over for the current Fire TV Stick Models in regards to rooting right?!
This wouldn't be such a big issue if Amazon hadn't removed accessibility services, which dramatically reduces the use of a Fire Tv Stick.
I guess we will have to search for alternative routes. WHile it is probably still possible to root the device via eMMC hardware method, this is way too complex for me.
I have already a few ideas.
My plan now is to use a raspberry pi in conjunction with the Fire TV and issue the automation commands via adb from the raspberry pi.
All I need is issue the Home key at certain points. Everything else Tasker can already do without root and accessibility services.
Also Tasker contains ADB over WIFI Plugin, and only needs a one time issue of the adb tcp command after every boot. After taht you have a adb client running on the fire tv itself to do the rest for automation.
My plan is to let the raspberry issue this adb command at every boot of the fire tv and after that Tasker will be able to do the rest via adb WIFI.
I hope that works out.
For further reference and anyone else stumbling over these issues. Before buying a Fire TV, I wasn't aware of these issues, that for example Accessibility services have been removed and Rooting is impossible right now. So Right now I think the better option is to avoid any Fire TV and buy a Raspberry 4 and run Android TV on it. That way you already have root access and can do anything you want on it.
Spamm00r said:
So its game over for the current Fire TV Stick Models in regards to rooting right?!
Click to expand...
Click to collapse
That is valid for the current methods. There is still further development, but development needs time...
So it's best if you take a look into the xda forums from time to time
Spamm00r said:
So its game over for the current Fire TV Stick Models in regards to rooting right?!
This wouldn't be such a big issue if Amazon hadn't removed accessibility services, which dramatically reduces the use of a Fire Tv Stick.
I guess we will have to search for alternative routes. WHile it is probably still possible to root the device via eMMC hardware method, this is way too complex for me.
I have already a few ideas.
My plan now is to use a raspberry pi in conjunction with the Fire TV and issue the automation commands via adb from the raspberry pi.
All I need is issue the Home key at certain points. Everything else Tasker can already do without root and accessibility services.
Also Tasker contains ADB over WIFI Plugin, and only needs a one time issue of the adb tcp command after every boot. After taht you have a adb client running on the fire tv itself to do the rest for automation.
My plan is to let the raspberry issue this adb command at every boot of the fire tv and after that Tasker will be able to do the rest via adb WIFI.
I hope that works out.
For further reference and anyone else stumbling over these issues. Before buying a Fire TV, I wasn't aware of these issues, that for example Accessibility services have been removed and Rooting is impossible right now. So Right now I think the better option is to avoid any Fire TV and buy a Raspberry 4 and run Android TV on it. That way you already have root access and can do anything you want on it.
Click to expand...
Click to collapse
You don't need to issue TCP command. By default, wireless adb debugging is turned on in Fire TV stick.
Shaikh Amaan FM said:
You don't need to issue TCP command. By default, wireless adb debugging is turned on in Fire TV stick.
Click to expand...
Click to collapse
But the Tasker adb function needs it or how else can I make that Tasker function work?
Spamm00r said:
But the Tasker adb function needs it or how else can I make that Tasker function work?
Click to expand...
Click to collapse
You might already knew this that in normal Android mobile phones, with "adb tcpip 5555" command in PC, you start the wireless adb on port 5555 in phone. But when you enable ADB Debugging in Fire TV from it's settings, the wireless ADB Debugging is by default started, so you don't need to run that TCP command as the wireless debugging is already on and then Tasker will use it to get it's work done.
Shaikh Amaan FM said:
You might already knew this that in normal Android mobile phones, with "adb tcpip 5555" command in PC, you start the wireless adb on port 5555 in phone. But when you enable ADB Debugging in Fire TV from it's settings, the wireless ADB Debugging is by default started, so you don't need to run that TCP command as the wireless debugging is already on and then Tasker will use it to get it's work done.
Click to expand...
Click to collapse
Yes I agree the adb is active one the Fire Tv Stick and you can connect to it via wifi on port 5555.
But tasker still does not work with the adb function.
How did you make it work?
According to this:
https://tasker.joaoapps.com/userguide/en/help/ah_adb_wifi.html
You need to run this comamnd everytime you reboot.
Spamm00r said:
Yes I agree the adb is active one the Fire Tv Stick and you can connect to it via wifi on port 5555.
But tasker still does not work with the adb function.
How did you make it work?
According to this:
https://tasker.joaoapps.com/userguide/en/help/ah_adb_wifi.html
You need to run this comamnd everytime you reboot.
Click to expand...
Click to collapse
I am not using Tasker. But as you said above that you'll use raspberry to issue adb tcip command to the stick to turn on wireless debugging, that's not needed.
As far as I think, you'll have a profile of device boot event in Tasker and in it you'll have a ADB Wifi action which will have the button press command.
If that's the case then it should work without any issue.
In ADB WiFi action, set host to 127.0.0.1 ( Just saw that this is optional as well )
If it doesn't works let me know, I'll try installing tasker in my stick and test adb wifi in it.
How do you change volume in your volume change app without root?
Maybe I can issue the command for changing hdmi input the same way.
Shaikh Amaan FM said:
I am not using Tasker. But as you said above that you'll use raspberry to issue adb tcip command to the stick to turn on wireless debugging, that's not needed.
As far as I think, you'll have a profile of device boot event in Tasker and in it you'll have a ADB Wifi action which will have the button press command.
If that's the case then it should work without any issue.
In ADB WiFi action, set host to 127.0.0.1 ( Just saw that this is optional as well )
If it doesn't works let me know, I'll try installing tasker in my stick and test adb wifi in it.
Click to expand...
Click to collapse
Spamm00r said:
How do you change volume in your volume change app without root?
Maybe I can issue the command for changing hdmi input the same way.
Click to expand...
Click to collapse
What's the adb command to change hdmi input?
Shaikh Amaan FM said:
What's the adb command to change hdmi input?
Click to expand...
Click to collapse
There is no adb command to do that diretcly, but the Fire TV switches to HDMI source, if you press home button. SO I wanna issue Home key input via adb to make it switch the HDMI source to the Fire TV Stick.
"key_home": "adb shell input keyevent 3",
As far as I know you need to have root to issue CEC COmmands diretcly. Otherwiese you ahve to make a system method do that for you.
You probably bought one with a serial number of
G4N0VM081..... which is the new blown fuse version. You need to scour ebay for serial number
G070VM190..... or lower, then follow the current rooting guide. Make sure it's BRAND NEW and never been opened or else you're SOL since used sticks have probably been updated. New rootable sticks exists. I found half dozen on ebay a few months ago.
Spamm00r said:
There is no adb command to do that diretcly, but the Fire TV switches to HDMI source, if you press home button. SO I wanna issue Home key input via adb to make it switch the HDMI source to the Fire TV Stick.
"key_home": "adb shell input keyevent 3",
As far as I know you need to have root to issue CEC COmmands diretcly. Otherwiese you ahve to make a system method do that for you.
Click to expand...
Click to collapse
Ok so I just installed Tasker in my stick, tested adb wifi in it, it didn't worked. But I can develop an app which can execute provided adb command on every boot. It's night in my timezone, I'll develop that app tomorrow inshaallah.
That would be awesome.
Please keep the command to execute generic, as it may be useful to also execute other commands at boot. Let the user decide what command to execute.
Shaikh Amaan FM said:
Ok so I just installed Tasker in my stick, tested adb wifi in it, it didn't worked. But I can develop an app which can execute provided adb command on every boot. It's night in my timezone, I'll develop that app tomorrow inshaallah.
Click to expand...
Click to collapse
Spamm00r said:
That would be awesome.
Please keep the command to execute generic, as it may be useful to also execute other commands at boot. Let the user decide what command to execute.
Click to expand...
Click to collapse
[APP][NO ROOT] ADB on Boot | Run adb commands at boot automatically
How to use? 1. Enable ADB Debugging from Fire TV settings 2. In this app, add the adb commands that you want to execute on every boot 3. Set whether you want to display a Toast message on completion of command execution 4. Test the script if...
forum.xda-developers.com
I have to correct myself about adb wifi out of tasker not working.
ADB Wifi does work depending on the app that you are using. Local ADB shell does not work, while Remote ADB Wifi app does work.
The adb plugin for tasker does not work, but the adb wifi action from Tasker itself does work right away. In my earlier tests, other apps were just blocking adb wifi and I was confused and thought tasker's adb wifi is not working. But you have to properly close the abd wifi session with a "exit" command. Also the windows adb tool freezes and has to be killed in taskmanager. That is a source of error for testing adb on fire TV.
Also the adb wifi of tasker will not accept semicolon seperated commands. Shaikh Amaan FM's tool however does. In tasker You will have to create new task for every command and only issue one command. I don't know why, but thats the result of my troubleshooting.
Also you have to make sure that Tasker is properly bought, a trial version or a not genuine version won't work, as Tasker has signature checks implemented which silently brakes plugins without any obvious error messages.
Plugins however also do not work in Macrodroid.
So best thing is to use Remote ADB Shell app or Tasker's built in adb wifi task. Thatway you can mostly work around the fact that Fire TV is locked down, has no root and has accessibility services disabled.
So this is the solution to:
Solution for no Root and no Accessibility Service on Fire TV 4K Mantis on Version 6.2.8.1
Thatway I'm able to make Fire TV switch input via tasker by issuing a home button press via adb.
That's the best thing you can do under these conditions that you can't have root on Fire TV right now.