I now have
just 1 2 Firestick 4Ks running without any issues for multiple days. Please see the details below. I am beginning to suspect that blocking OTA update thru some URLs is important to have LM keep running.
I will keep updating the days and hours they stay running without issues along with any parameter changes for new tests by editing this post occasionally.
6/21/23 Update: As all 3 methods continue to work, I will leave this post 'as is' for now and unless issues arise, it can be assumed that LM is working without it being deleted.
Firestick 4K #1 (Officially on DAY 14 without LM delete)
Launcher Manager 1.1.8 Running:
13 Days and 8 hours (as of 6/21/23 19:00 PDT)
Wolf Launcher starts as default launcher + launches with home button : yes
Software Version: Fire OS 6.2.9.7 (NS6297/4655)
Checks for Updates working: No (Update error message therefore OTA being blocked)
Rethink DNS + Firewall v054c: restarts automatically on reboot = yes
DNS Setting: System DNS
Apps Blocked: Arcus Proxy (both metered and unmetered settings)
URLs Blocked: arcus-uswest.amazon.com, softwareupdates.amazon.com
PS I got the hint of why these 2 URLs might work from
@RiCkLaR in
@Finnzz's other thread
PSA FireTV OTA update URL has changed
Notes: ADB/Scrcpy access via a local remote computer fixed with a reboot of the Firestick on 6/14, the 7th day without LM being deleted. Rethink DNS auto started in its last state after reboot as well. All systems normal and working including Wolf Launcher as default launcher through LM.
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Firestick 4K #2 (Officially on DAY 11 without LM delete)
Launcher Manager 1.1.8 Running:
10 Days and 16 hours (as of 6/21/23 19:00 PDT)
Wolf Launcher 0.1.9 starts as default launcher + launches with home button : yes but beware that the stock launcher will be somewhat disabled showing no network connection, even though it is connected and FireOS settings is accessible.
Software Version: Fire OS 6.2.9.7 (NS6297/4655)
Checks for Updates working: Probably not (Network Connection Lost message pops up so can't see any update confirmations)
Rethink DNS + Firewall v054c: restarts automatically on reboot = yes
DNS Setting: System DNS
Apps Blocked: None
URLs Blocked: firetvcaptiveportal.com, fireoscaptiveportal.com, arcus-uswest.amazon.com, softwareupdates.amazon.com
Smart Time Sync 1.72 - synced hourly with one of the pool.ntp.org servers to prevent out of sync clock
Notes: Since just the 2 captiveportal urls deleted LM within 24 hours, I added the 2 additional urls above to see if it will keep LM from deleting. Will keep updating the running days and hours as long as LM stays in place.
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FireTV 4K (Toshiba) #3
Launcher Manager 1.1.8 Running:
7 Days and 7 Hours (as of 6/21/23 19:00 PDT)
Software Version: Fire OS 6.2.9.6 (NS6296/4555)
Same exact settings as #1 above except software version is older.
Note: After several different settings were tested, this device seems to do the same thing every day or so. That is, although LM is not deleted, it stops working and when the LM app is opened manually, it shows a blank screen. Rebooting the FireTV returns LM back to normal and functioning so a slight inconvenience but manageable. Might be that a power save mode of the TV that does not exist on the Firesticks is conflicting with LM at times.
PS
@Finnzz mine are all running on FireOS6 as I recently decided to go with ONN TV boxes for the flexibility it has for using custom launchers, etc. but then found that A12 will not allow you to select the default app for YT links in IPTV apps so I now have returned to the Firestick 4Ks which work great, if LM will stay put. Can you and others try the settings of the top one in this post for FireOS7 along with Rethink 053n to see it LM does not get deleted for 48 hours+ like mine?