[Fire HD 8 and HD 10 General] jsloan2:
Steps confirmed for Fire HD8 2016 (Gen6):

1. Factory Reset

2. MTK-SU Root - Includes setting default permission to allow su/root

I used the batch file included from [MENTION=8978978]Rortiz2[/MENTION] - HERE

3. I modified the MTK-SU batch file to add the following lines:

...
echo Completed! Now update the binary!
[B]echo [*] Running Custom Scripts...
echo [*] Debloating...
call debloat.bat
echo [*] Installing Google Applications
call play-store.bat[/B]
pause
...

4. Create the debloat.bat file in the same directory as MTK-SU.bat

debloat.bat

@echo off
echo Disabling Over The Air Updates...
files\adb shell "/data/local/tmp/mtk-su -c pm disable com.amazon.kindle.otter.oobe.forced.ota"
files\adb shell "/data/local/tmp/mtk-su -c pm disable com.amazon.device.software.ota"
files\adb shell "/data/local/tmp/mtk-su -c pm disable com.amazon.device.software.ota.override"
echo Removing Adds...
files\adb shell "/data/local/tmp/mtk-su -c pm disable com.amazon.kindle.kso"
echo Removing Legal Notices
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.legalsettings"

echo Removing Weather...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.weather"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.platform"

echo Removing System updates...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.settings.systemupdates"

echo Removing Kindle books...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.kindle"

echo Removing Prime video...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.avod"

echo Removing Special offers...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.kindle.kso"

echo Removing Content Management service...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.kindle.cms"

echo Removing Kindle store
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.webapp"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.tahoe"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.iris"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.audible.application.kindle"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.cloud9.kids"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.cloud9.contentservice"

echo Removing Silk browser...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.cloud9"

echo Removing Amazon app store...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.venezia"

echo Removing Amazon goodreads share...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.unifiedsharegoodreads"

echo Removing Goodreads...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.goodreads.kindle"

removing Amazon gamecircle...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.ags.app"

echo Removing Amazon Maps...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.geo.mapsv2.services"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.geo.mapsv2"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.geo.client.maps"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.windowshop"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.csapp"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 amazon.alexa.tablet"
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.dee.app"

echo Removing Amazon Music...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.mp3"

echo Removing Amazon Photos...
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.photos"

echo Disable Device Setup
files\adb shell "/data/local/tmp/mtk-su -c pm disable-user --user 0 com.amazon.kindle.otter.oobe"

5. Download the Following APKs and save them to the

apps sub-directory

that you extracted from the MTK-SU archive:

com.android.vending_18.9.11-all_0_PR_295870256-81891100.apk

com.buak.Link2SD_4.3.4-415_minAPI9(arm64-v8a,armeabi,armeabi-v7a,mips,x86,x86_64)(nodpi).apk

com.google.android.apps.kids.familylinkhelper_flh.release.1.23.0.E.277396481-963364_minAPI21(nodpi).apk

com.google.android.apps.kids.familylinkmanager.1.0.0.257492102.apk

com.google.android.gms_20.04.14_(020400-294335909)-200414010_minAPI21(arm64-v8a,armeabi-v7a)(nodpi).apk

com.google.android.googlequicksearchbox_10.98.9.21.arm64-301070062_minAPI21(arm64-v8a,armeabi-v7a)(nodpi).apk

com.google.android.gsf.login_5.1-1743759-22_minAPI21(nodpi).apk

com.google.android.gsf_5.1-1743759-22_minAPI22(nodpi).apk

com.google.android.launcher_1.4.large-104002_minAPI16_maxAPI25(nodpi).apk

Here's a BUNDLE!

6. create play-store.bat in the same directory as MTK-SU.bat and debloat.bat

play-store.bat

@echo off
echo Google Services / Play Store for Fire HD8
echo Thanks to diplomatic for creating "MTK-SU" and Rortiz2 for the MTK-SU.bat.
echo .
echo [*] Installing Google Framework...
files\adb.exe install "apps\com.google.android.gsf_5.1-1743759-22_minAPI22(nodpi).apk"
files\adb.exe install "apps\com.google.android.gsf.login_5.1-1743759-22_minAPI21(nodpi).apk"
files\adb.exe install "apps\com.google.android.gms_20.04.14_(020400-294335909)-200414010_minAPI21(arm64-v8a,armeabi-v7a)(nodpi).apk"
echo [*] Installing Google Play Store...
files\adb.exe install "apps\com.android.vending_18.9.11-all_0_PR_295870256-81891100.apk"
echo [*] Installing Google Application...
files\adb.exe install "apps\com.google.android.googlequicksearchbox_10.98.9.21.arm64-301070062_minAPI21(arm64-v8a,armeabi-v7a)(nodpi).apk"
echo [*] Installing Google Family Link
files\adb.exe install "apps\com.google.android.apps.kids.familylinkhelper_flh.release.1.23.0.E.277396481-963364_minAPI21(nodpi).apk"
echo [*] Installing Family Link Manager
files\adb.exe install "apps\com.google.android.apps.kids.familylinkmanager.1.0.0.257492102.apk"
echo [*] Installing Google Launcher...
files\adb.exe install "apps\com.google.android.launcher_1.4.large-104002_minAPI16_maxAPI25(nodpi).apk"
echo [*] Installing Link2SD...
files\adb.exe install "apps\com.buak.Link2SD_4.3.4-415_minAPI9(arm64-v8a,armeabi,armeabi-v7a,mips,x86,x86_64)(nodpi).apk"
echo [*] Changing Launcher...
echo [*] Disable Fire Launcher
files\adb.exe shell "/data/local/tmp/mtk-su -c pm disable com.amazon.firelauncher"
echo [*] Enable Google Launcher
files\adb.exe shell "/data/local/tmp/mtk-su -c pm enable com.google.android.launcher"

7. Update your SuperUser Binary by launching SuperUser (This is now an installed application in your app drawer). You should be prompted to update.

8. In the SuperUser application change the default SU permission to Grant vs. Prompt.

9. Reboot

10. Use Link2SD to mark all of the Google/Family Manager apps from step 6 as system apps.

-

THIS IS THE MONEY - If you are stuck in activating Family Link Manager with the message: "This profile manager is required for Google Accounts managed with Family Link." This is the Fix!

- If you are unfamiliar with the application, just find the app in the main Link2SD list then hit the 3 dots on the top right, here you can choose to set as system application.

- This is the part that is kinda wonky, If someone knows a way to just install these applications as system application from ADB then I'll gladly take the Link2SD part out of here...

11. Open the Play Store and sign in through play store as kids account...

12. Authorize sign in as parent...

13 Continue to step through approval dialogue...

14 done..