Develop Bugs

New Firmware 51.1.4.0+ and OLD netflix app

I was wondering if anyone knows of a way to block amazon forcing you to update to latest netflix after upgrading the firmware?
Thanks to rbox I have all the necessary components to keep the file structure/firmware of 51.1.0.2 and be on latest 51.1.4.1, of course new netflix does not work on that, I removed and sideloaded an extracted netflix apk from older firmware for the FTV but amazon has something forcing you to update, it pulls up a message saying required update. Any way around this? I think the state i have my FTV in if I could launch the old netflix it would work, but I can't launch it without the amazon nag.
The reason I need to keep the old netflix is for some reason my FTV's do not play well with the new version at all, many errors/skips/fails to launch/logs me out etc. I tried latest 51.1.4.1 and still same issue. It's odd too cause I bought a new FTV from staples and rooted it and upgraded it before doing anything to 51.1.4.1 with new netflix and it works way better on that unit than any of my other ones. not sure why
Also, the new netflix will not put my FTV to sleep mode automatically after timing out. The old one would allow it to go to sleep mode while new netflix logs out of the user profile but leaves the app open and it sat overnight on netflix, This doesnt work very well for me. Any help/insight is appreciated!

Skater4599 said:
I was wondering if anyone knows of a way to block amazon forcing you to update to latest netflix after upgrading the firmware?
Thanks to rbox I have all the necessary components to keep the file structure/firmware of 51.1.0.2 and be on latest 51.1.4.1, of course new netflix does not work on that, I removed and sideloaded an extracted netflix apk from older firmware for the FTV but amazon has something forcing you to update, it pulls up a message saying required update. Any way around this? I think the state i have my FTV in if I could launch the old netflix it would work, but I can't launch it without the amazon nag.
The reason I need to keep the old netflix is for some reason my FTV's do not play well with the new version at all, many errors/skips/fails to launch/logs me out etc. I tried latest 51.1.4.1 and still same issue. It's odd too cause I bought a new FTV from staples and rooted it and upgraded it before doing anything to 51.1.4.1 with new netflix and it works way better on that unit than any of my other ones. not sure why
Also, the new netflix will not put my FTV to sleep mode automatically after timing out. The old one would allow it to go to sleep mode while new netflix logs out of the user profile but leaves the app open and it sat overnight on netflix, This doesnt work very well for me. Any help/insight is appreciated!
Click to expand...
Click to collapse
It's two separate apps, so if you leave the new one installed, the old one will still work. Unfortunately it won't show up in the main apps list and you'll have to open it like other sideloaded apps.

rbox said:
It's two separate apps, so if you leave the new one installed, the old one will still work. Unfortunately it won't show up in the main apps list and you'll have to open it like other sideloaded apps.
Click to expand...
Click to collapse
Just tried that, it does show up as a seperate as you said, the problem is when I launch it, I get an amazon popup that says "Launch newer Netflix Instead. you have installed a newer version of Netflix. This old version is no longer supported. Please uninstall and launch the new version instead. And two options, uninstall now or uninstall later"
Also looking at manage all apps list now it only shows the old netflix, I think it overwrote the newer version or something.

Skater4599 said:
Just tried that, it does show up as a seperate as you said, the problem is when I launch it, I get an amazon popup that says "Launch newer Netflix Instead. you have installed a newer version of Netflix. This old version is no longer supported. Please uninstall and launch the new version instead. And two options, uninstall now or uninstall later"
Also looking at manage all apps list now it only shows the old netflix, I think it overwrote the newer version or something.
Click to expand...
Click to collapse
That's odd. Originally, before I fixed Netflix... I let it update to the new Netflix, I used it and it didn't work, and then I did 'adb install' to install the old one, and went to the apps list and it "just worked". It could be that they've since updated something to prevent that from working... Why not just flash 51.1.3.0?

rbox said:
That's odd. Originally, before I fixed Netflix... I let it update to the new Netflix, I used it and it didn't work, and then I did 'adb install' to install the old one, and went to the apps list and it "just worked". It could be that they've since updated something to prevent that from working... Why not just flash 51.1.3.0?
Click to expand...
Click to collapse
My other FTV's are on 51.1.3.0 for that reason, I had just flahsed this one with latest 51.1.4.1 in hopes new netflix would work any better than it did on 51.1.4.0, but it seems not much changed (for me). I wanted to keep the new firmware for some of the features, remote on phone, sleep button, prime music and whatever bug fixes etc they've done in the background, also moving forward I don't want to be forever stuck on 51.1.3.0. But it'll have to do for now I guess.

@rbox do you still happen to have the APK you adb installed that showed up seperately? I wonder if it's just my .apk I have

Skater4599 said:
@rbox do you still happen to have the APK you adb installed that showed up seperately? I wonder if it's just my .apk I have
Click to expand...
Click to collapse
It's the same one you have, it hasn't been chagned in forever. Just pull it off one of your other boxes.

Ok, yep same place I got the one I have. I just re-pulled it and the /data/data folder just to see, same thing.
Thanks for the help/input rbox

I hope this is the right thread for this -
I just updated to the pre-rooted 51.1.4.1_514013920 firmware. The new netflix app won't play anything. I tried uninstalling it, deleting it from the cloud, rebooting, and reinstalling. Still nothing.
Any ideas? I was fine with the old app if someone could point me to the APK. I unforunately don't have any other devices with the old APK.
I appreciate any help.
---------- Post added at 11:08 PM ---------- Previous post was at 10:15 PM ----------
sjwaste said:
I hope this is the right thread for this -
I just updated to the pre-rooted 51.1.4.1_514013920 firmware. The new netflix app won't play anything. I tried uninstalling it, deleting it from the cloud, rebooting, and reinstalling. Still nothing.
Any ideas? I was fine with the old app if someone could point me to the APK. I unforunately don't have any other devices with the old APK.
I appreciate any help.
Click to expand...
Click to collapse
Nevermind. I ended up wiping and installing 51.1.4.0 because I don't think I ever did that. Then I reinstalled the boot menu and flashed .1 and everything is working.
I'll leave this here just in case anyone else makes the same bonehead mistake. Thanks for the hard work rbox, appreciate the rooted firmware releases.

[apk request] Netflix apk compatible with AFTV Gen 1

Thanks!

Embee11 said:
Thanks!
Click to expand...
Click to collapse
The latest FireTV Netflix is fully compatible with FTV1's as long as they are on FireOS 5. The latest FireOS 5 FW the better. If you are having a problem getting it to work Please be more specific on what FW you are on.
Saw your other post. Answered on there too. Bottom line: FireOS 5.

Thanks for your reply!
I performed a system update to my first-gen FireTV, and it is now running FireOS vv5.2.4.1
More to the point, I found a Netflix apk that is compatible with my first-gen Fire TV and finally works correctly! But it's a pretty old version, v2.3.10 build 268. Anything newer fails to run correctly, either refusing to run with "not compatible with your device" message, or constantly returning "UI-800-3" errors.
I very much wish to make it publicly available, but I'm too new to the forum to be allowed to post links. I'll rack up a few more posts and then try to post it later.

Here is the Gen-1 compatible Netflix for AFTV
Although this is rather old version of Netflix for the Fire TV, it's the most recent version that works correctly on my First Generation AFTV, which is running FireOS 5.2.4.1
No later version will work. Here it is...
http://s000.tinyupload.com/index.php?file_id=04675734839837874891

Embee11 said:
Although this is rather old version of Netflix for the Fire TV, it's the most recent version that works correctly on my First Generation AFTV, which is running FireOS 5.2.4.1
No later version will work. Here it is...
http://s000.tinyupload.com/index.php?file_id=04675734839837874891
Click to expand...
Click to collapse
If you are on FireOS 5.2.4.1 & you can't run the latest versions of Netflix then you have a problem. The only time I've had an issue like that was when I manually deleted the mbcache file on FireOS 3 due to the running out if space bug.
You might need to reconfigured your device thru TWRP. Are you Rooted or not?

Y314K said:
If you are on FireOS 5.2.4.1 & you can't run the latest versions of Netflix then you have a problem. The only time I've had an issue like that was when I manually deleted the mbcache file on FireOS 3 due to the running out if space bug.
You might need to reconfigured your device thru TWRP. Are you Rooted or not?
Click to expand...
Click to collapse
I've went back and forth with Netflix and they suspect it's the old version of the application that is my issue. I am also running Fire OS 5.2.4.1 and every time i push a version of App Store or download, it's 2.3.10 build 268. I've done factory resets, you name it and it will ONLY download this exact version which according to Netflix is too old to work.

Can I install and run FireOS apks on Andriod box like s905x? I tried downloading and it gives UI-800-3 errors.
Is there something I have to change for it to work on other android boxes?

Netflix always exits randomly since I upgraded to the latest version！

Hi,
I have several fire TVs, one of them is rooted. since upgraded to the latest version, when I play netflix, after a while , netflix always exit randomly.
why?

any hint?

I'm having the same issue since I downloaded the latest version and it's not just Netflix. I'm having issues with tubi.tv doing the same thing. Also Netflix has problems loading or playing a title. It's especially frustrating and irritating when you watching a show and it starts buffering. It goes to 25%, stops and I have to back out then go back in. It happens quite frequently since I downloaded the new version.

blackantt said:
any hint?
Click to expand...
Click to collapse
Melina69 said:
I'm having the same issue since I downloaded the latest version and it's not just Netflix.
Click to expand...
Click to collapse
Guys, please specify device, root, FW, etc.. Of you don't include specifics then it becomes a guessing game.
Netflix can be fanikie. When it acts up on me. On my latest FW PreRooted FTV1. I just go to the apps setting. Then do an App Stop & clean the cache. I leave Data alone. Since I prefer to not have to input the log in info. I also have the Apps auto update turned off. So I control when it updates. I only update if none of my other tricks work. As a last resort.

I didn't realize there was more than one kind of Amazon Fire TV. I have no idea what the specifics are. Netflix has never done this before until I downloaded the latest version. I don't believe the automatic updates is on since I never had to update it before. I don't know how to stop and clear cache. Never had to do that either. Maybe my version is different than yours. But I went to settings to see if I could figure it out.

Melina69 said:
I didn't realize there was more than one kind of Amazon Fire TV. I have no idea what the specifics are. Netflix has never done this before until I downloaded the latest version. I don't believe the automatic updates is on since I never had to update it before. I don't know how to stop and clear cache. Never had to do that either. Maybe my version is different than yours. But I went to settings to see if I could figure it out.
Click to expand...
Click to collapse
Now that there are TV's there are 5 type of FireTV devices.
https://www.amazon.com/gp/help/customer/display.html?nodeId=201640900
You can clean the cache from the App Settings. In the Apps Management menu.

blackantt said:
Hi,
I have several fire TVs, one of them is rooted. since upgraded to the latest version, when I play netflix, after a while , netflix always exit randomly.
why?
Click to expand...
Click to collapse
Is it the rooted FireTV that exists randomly? My rooted AFTV1 box refuses to load now. I've uninstalled the app several times, prior to that cleared cache and data and nothing. It asks for my login info, accepts it, and then ultimately kicks me out with zero error messages.
If I saw the last update correctly, it was updated mid-June and I used Netflix last week. I thought I was the only one this was happening to, but it appears to be happening to others. I wonder if it's a root issue?

null0pointer said:
Is it the rooted FireTV that exists randomly? My rooted AFTV1 box refuses to load now. I've uninstalled the app several times, prior to that cleared cache and data and nothing. It asks for my login info, accepts it, and then ultimately kicks me out with zero error messages.
If I saw the last update correctly, it was updated mid-June and I used Netflix last week. I thought I was the only one this was happening to, but it appears to be happening to others. I wonder if it's a root issue?
Click to expand...
Click to collapse
If you are on FireOS 3 then yeah. Netflix probably made their latest Neflix app incompatible with old Android versions.

Y314K said:
If you are on FireOS 3 then yeah. Netflix probably made their latest Neflix app incompatible with old Android versions.
Click to expand...
Click to collapse
I'm on the newest pre-rooted Fire OS available and the newest version of Netflix. It worked last week, so I'm not sure what is happening this week to cause the outage.
I'm likely to rollback root to stock OS anyway as several OTT TV providers do not work like Vue. They refuse to run when they detect root.

null0pointer said:
I'm on the newest pre-rooted Fire OS available and the newest version of Netflix. It worked last week, so I'm not sure what is happening this week to cause the outage.
I'm likely to rollback root to stock OS anyway as several OTT TV providers do not work like Vue. They refuse to run when they detect root.
Click to expand...
Click to collapse
If you're bootloader is unlocked. You might want to wait in case we can get Magisk HideRoot working. Near future project. Don't try it now. But heads up.
For now just turn off apps auto update & install a prior version of Netflix.

Y314K said:
Guys, please specify device, root, FW, etc.. Of you don't include specifics then it becomes a guessing game.
Netflix can be fanikie. When it acts up on me. On my latest FW PreRooted FTV1. I just go to the apps setting. Then do an App Stop & clean the cache. I leave Data alone. Since I prefer to not have to input the log in info. I also have the Apps auto update turned off. So I control when it updates. I only update if none of my other tricks work. As a last resort.
Click to expand...
Click to collapse
for my pre-root and regular fire TV I, when I upgraded to 5.2.4.1 . they all have this trouble (exit randomly in Netflix). hope someone can debug it.

[SOLVED] New HULU and HBO App Playback Failure Fix AFTV2 (sloane)

Update: This issue has now been confirmed solved for the Hulu, HBO Go, and HBO NOW app update error.
There are 2 ways to remedy the issue:
1. The prefered method is to update to the newest ROM. Rbox has issued an updated version of his ROM 5.2.4.2_r2. You can get a copy at the forum post here 5.2.4.1_r2. This updated version fixes playback errors in the new Hulu app as well as HBO (Go and Now) issues. Be sure to follow normal flashing instructions. Note - 5.2.4.2_r1 will NOT work for the new Hulu app (4.x.x).
2. If, for some reason, you do not want to flash an updated ROM. For the quick and dirty solution, post #12 gives instructions on correcting the problem. Note that this method only reverts to an older version of the app (3.x.x) and will not allow the new Hulu Live TV service functionality or the multiple accounts functionality. The same will need to be done for the HBO apk as well.
Original Post:
I'm surprised I'm the only one so far posting about this, but maybe I'm the only one experiencing problems.
The new HULU app updated automatically for me yesterday and immediately rendered playback impossible. Any show, movie, etc. comes back with a playback failure error code cdn-3-xxxxxxxx where the "x"s at the end change to different alpha numeric characters at any time. Here is what I have tried so far with NO POSITIVE RESULTS (in addition to speaking with HULU customer service support desk). I am on a rooted box using TWRP and rbox's system files (sloane).
Uninstalled and reinstalled app
Restarted AFTV
Unauthorized app via HULU website and re-authorized
Restarted router, cable modem, and AFTV (even a long term restart as requested by HULU tech support)
Updated AFTV software version (originally I was on 5.2.4.0 - then I updated to 5.2.4.2)
Wiped cache (Factory Reset)
As stated above, none of these worked.
HULU support gave me no way to uninstall the app and go back to an older (working) version, so I am currently stuck without a working version of HULU.
Here's what I'm interested in finding out from the community:
Has anyone experienced the same problems I have and then been able to get the app working correctly? If so, what method worked for you?
I can probably find an old version of the app online, however, I need to be able to block or turn off the update somehow... is there a method of turning the app update similar to how we stop the AFTV from updating automatically?
Any assistance would be appreciated. I'd really like the old version of the app back, since the newer version is crap.

This should be an old version of the apk you can try to sideload: https://www.dropbox.com/s/xw9rv2nxet2lchu/com.hulu.plus-FireTV-3.2.a.apk?dl=0

Thanks Sizzle, but I fear without a method of stopping the update I will shortly be left in a similar situation as I currently am in. Would you happen to know how to stop the automatic update of the hulu apk?

chadster1976 said:
Thanks Sizzle, but I fear without a method of stopping the update I will shortly be left in a similar situation as I currently am in. Would you happen to know how to stop the automatic update of the hulu apk?
Click to expand...
Click to collapse
FireOS 5 UI in Settings/Applications/Appstore/ you can turn off the "Automatic Updates" for all apps. In the future you will get notifications about Updates. You will be able to ignore them or apply them.

Can you confirm that the apk I provided is the older version? I've already upgraded and everything works fine on my Fire TV 1.

Sizzle - I will have some time this afternoon or early evening to implement the rollback and turn off the updates that Y314K provided instructions to earlier. I will post back with results when complete.
Thank you again for the assist.

Yup... I posted this as an issue on aftv news. If your rooted the new Hulu version will not work on your Amazon Fire TV. Please let us know if this method fixes the problem.
Sent from my Nexus 6P using XDA-Developers Legacy app

tekno4ever said:
Yup... I posted this as an issue on aftv news. If your rooted the new Hulu version will not work on your Amazon Fire TV. Please let us know if this method fixes the problem.
Sent from my Nexus 6P using XDA-Developers Legacy app
Click to expand...
Click to collapse
The wife is not happy with Hulu not working and honestly she needs a stock always working AFTV box.
Happy Wife Happy Life! After searching a few different ways I'm unable to find a stock nonrooted 5.2.4.2 zip.
Might anyone know where I can download to flash via TWRP?

I can report same issue, it also effects newer versions of HBO GO

I've got a rooted fully unlocked bootloader FireTV 1 and am using version 4.0.0.342 as reported by Titanium Backup with no problems. What specifically shouldn't I be able to do? My hulu account is ad-free. Perhaps you guys are running an adblocker and do not have an ad-free hulu subscription?
Here's the 4.0.0.342 apk from my Fire TV: https://www.dropbox.com/s/mgvqg1ugzhrjpr5/com.hulu.plus-FireTV-4.0.0.342.apk?dl=0
Here's the old 3.2.a version from my other FireTV: https://www.dropbox.com/s/xw9rv2nxet2lchu/com.hulu.plus-FireTV-3.2.a.apk?dl=0

I am looking into this. If it is what I think, it would only be effecting the Fire TV 2 and has nothing to do with root.

Sizzlechest said:
Can you confirm that the apk I provided is the older version? I've already upgraded and everything works fine on my Fire TV 1.
Click to expand...
Click to collapse
Ok - Here are my findings. I attempted to install the 4.0.xxx version on both of my AFTV2 (sloane) boxes. Neither box would play videos (although the app booted and appeared to run correctly initially). Both are rooted with one running 5.2.4.2 and the other running 5.2.1.1.
After unsuccessful attempts of trying out the v4 app on both boxes, I uninstalled the apk, then rebooted.
Installed 3.2.a and success! Both units work as they should.
Although they are not the newest version of the app, I am able to play back video - so that is a plus
This version will not have the new Hulu Live or the separate account access to the app.
For anyone else experiencing this problem, here is the process I would recommend to solve this:
1. Download earlier version (3.2.a) of Hulu app (see Sizzlechest's link posted earlier)
2. Uninstall current non-working Hulu app.
3. Make sure your app automatic updates are set to OFF by going to Settings>Applications>Appstore>Automatic Updates - OFF
4. Reboot Device (may not be necessary, but what does it hurt?)
5. Connect to device via adb
6. Install Hulu 3.2.a.apk via command "adb install com.hulu.plus-FireTV2-3.2.a.apk" - keep in mind this only works if you did not rename the apk from Sizzlechest when you downloaded it.
7. Profit
You will need to re-logon to the Hulu app.
Thanks for everyone's help on this one! A real community effort.
Looking forward to rbox's discoveries on this subject. Thanks for all of your hard work on this and all of the other projects you've been a part of.

Sizzlechest said:
I've got a rooted fully unlocked bootloader FireTV 1 and am using version 4.0.0.342 as reported by Titanium Backup with no problems. What specifically shouldn't I be able to do? My hulu account is ad-free. Perhaps you guys are running an adblocker and do not have an ad-free hulu subscription?
Here's the 4.0.0.342 apk from my Fire TV: https://www.dropbox.com/s/mgvqg1ugzhrjpr5/com.hulu.plus-FireTV-4.0.0.342.apk?dl=0
Here's the old 3.2.a version from my other FireTV: https://www.dropbox.com/s/xw9rv2nxet2lchu/com.hulu.plus-FireTV-3.2.a.apk?dl=0
Click to expand...
Click to collapse
Sorry, forgot to address this Sizzle.
I DO have the add-free version of Hulu, but not the newer Hulu Live subscription. I am not running any adblocker software.

Okay. I have a theory on why both Hulu and HBO are not working. Like I said this is going to be a Fire TV 2 only thing. If someone is willing to try a fix, please PM me. Do note, this might brick the box. I really don't know. And if it bricks, it'll be super dead. But, there is a slim chance the unbrick program could revive it, so I would prefer someone who has a box that was rooted with my preloader instructions and not KingoRoot. But, if you don't care, and you didn't use the preloader instructions, and want to try anyway, there definitely won't be any way to recover it. I will say this again. If you try this fix, there is a chance it might brick the box. Just want to make that clear.

Is there a specific apk version (link) for hbo now that people have had success installing?

ducksoup18 said:
Is there a specific apk version (link) for hbo now that people have had success installing?
Click to expand...
Click to collapse
Sorry Duck, but I am not aware of the HBO Now app - I use Prime channels for my HBO subscription.
In the case of the Hulu app, I had to revert to the previous whole number version of app in order for it to work - V4.x.x.xxx --> V3.x.xxx
My suggestion is to just try some different versions in a fairly methodical way and see what works. It's fairly easy to install and uninstall via adb and only takes a few min.
Also, be sure to turn off automatic updating in the Appstore (different than updates for system), otherwise your app will just update itself again to the newer version and you'll be stuck.
Hopefully rbox will use his magical powers and get us an answer to all of our troubles soon. :fingers-crossed:

Thanks for the reply @chadster1976. Was able to get things to work by downloading an earlier version of HBO Now from the same place you guys suggested. Thanks again! Was able to watch GOT lastnight again on my main TV.
https://forum.xda-developers.com/showpost.php?p=73144047&postcount=412

rbox said:
Okay. I have a theory on why both Hulu and HBO are not working. Like I said this is going to be a Fire TV 2 only thing. If someone is willing to try a fix, please PM me. Do note, this might brick the box. I really don't know. And if it bricks, it'll be super dead. But, there is a slim chance the unbrick program could revive it, so I would prefer someone who has a box that was rooted with my preloader instructions and not KingoRoot. But, if you don't care, and you didn't use the preloader instructions, and want to try anyway, there definitely won't be any way to recover it. I will say this again. If you try this fix, there is a chance it might brick the box. Just want to make that clear.
Click to expand...
Click to collapse
I'm willing to test as I have spare AFTV devices just in case. Just sent you a PM @rbox

So I downloaded @rbox 5.2.4.2 deleted the SU directory inside the zip as instructed, then wiped everything possible 3x upon which I cleanly reinstalled 5.2.4.2 and Hulu still does not work on my non rooted AFTV 2 Box. Direct TV Now works perfectly without installing HideMyRoot so maybe this is truly just a Hulu issue on AFTV 2 Boxes. @AFTVnews.com

tekno4ever said:
So I downloaded @rbox 5.2.4.2 deleted the SU directory inside the zip as instructed, then wiped everything possible 3x upon which I cleanly reinstalled 5.2.4.2 and Hulu still does not work on my non rooted AFTV 2 Box. Direct TV Now works perfectly without installing HideMyRoot so maybe this is truly just a Hulu issue on AFTV 2 Boxes. @AFTVnews.com
Click to expand...
Click to collapse
Not sure Tekno. I was on chat 3 separate occasions with the Hulu tech support team and they claimed this had only been a rare occurrence... Take that however you want to... The extent of their assistance was resetting everything - including router, modem, etc. Then the final thing they suggested was a factory reset. I eventually did try that after updating to the latest firmware version from rbox. Needless to say that did not work. They couldn't help me with downgrading to the previous working version of the app, which is why I started this thread here on XDA.

[Fire TV Stick 4k] European HBO Go stopped to work

I use FTV4k in Poland. Using apk's I installed Amazon Prime Video (for whatever reason built-in APV doesn't work in Poland, but one from Android TV works fine); Netflix, Apple TV... and HBO Go (Nordic).
For the past year all worked extremely well and stable, but about 2 weeks ago HBO stopped to work. When I run it, it starts, there are a few revolutions of the circle, and then it jumps back to the main menu. I uninstalled the app, reinstalled, I was able to activate it just fine, and right after activation it dropped back to main menu.
I'm using newest version available, Google Play services are also installed in the newest version... I'm out of ideas what else could I try.
Anyone would care to help me?

I've the same problem

As I have noted in this post, the latest update for Fire Stick 4K causes the HBO GO app to crash. The only solution is to root and downgrade (or watch via the Kodi HBO GO addon).
Additionally, the same thing happened with Fire Stick 2nd Gen in the latest update.
HBO GO should issue a fix, but they're unlikely to do so because Fire Sticks aren't supported.

Hello
Could you give me hint How I need downgrade my FSTV4K?
I flashed pre-rooted 2.7.1 then during stick registering auto update install 2.7.3
I disabled OTA then again install 2.7.1.
After that install HBO and try. Not working despite downgrade, so this show that in system there some modified files left.
I suggest that I need backup of 2.7.1 with blocked OTA. Unfortnatly dont have it

I had the same issues. First I thought a full wipe of the system partition would be enough (and flashing the "stock" 2.7.1 via TWRP), but ultimately I had to do a factory reset on 2.7.1, block update servers on my router and skip the updates step in the setup wizard.
Apparently, to pass the update check, but prevent the download, you must block three of the four update servers:
Code:
amzdigital-a.akamaihd.net
amzdigitaldownloads.edgesuite.net
updates.amazon.com
If that doesn't get you past the update screen, you can use the Fire Stick remote Android app on a phone, connect to the stick as soon as it's visible on the local network, putting it to sleep via the app and waking it up via the remote. That did it for me.
There are other ways of passing the initial wizard, they involve modifying build.prop to enable ADB and pushing your adb keys, there was a post about it somewhere. To do this, you have to connect the stick directly (no OTG) and do the boot-fastboot.sh step from the rooting instructions.

Here's an old (apparently patched) version of the app intended for Sony Bravia TV's that works on both 2nd gen and 4K. The icon is purple for some reason and there's no shadow box behind the subtitles, but it works.
I see that the link has been posted in the request section, but I'll leave it here just in case.

niftynick said:
Here's an old (apparently patched) version of the app intended for Sony Bravia TV's that works on both 2nd gen and 4K. The icon is purple for some reason and there's no shadow box behind the subtitles, but it works.
I see that the link has been posted in the request section, but I'll leave it here just in case.
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Hey, I just want to say thank you for providing that information to the community! Very appreciated, I've been searching for a clue about this for weeks now and just found your post here, downloaded and installed the app on the 4K, hbogo work like a charm again! Thanks!

Thank you for the patched version.
At least at me, it works on FireTv, the only problem seems its that the movies with other audio than EN can't be hear.. no sound...
LE: sound work with other version, from the other theard.. eu.hbogo_5.11.7-218_minAPI23(nodpi).apk

petredragos said:
Thank you for the patched version.
At least at me, it works on FireTv, the only problem seems its that the movies with other audio than EN can't be hear.. no sound...
LE: sound work with other version, from the other theard.. eu.hbogo_5.11.7-218_minAPI23(nodpi).apk
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Click to collapse
The new version (works on 2nd gen and 4k too):
h t t p s://drive.google.com/file/d/1EW5x-GM6xS_6fdvO-svE5jf0CuwBqw3b/view?usp=sharing

I used HBOMAX to stream on my Fire tv