I purchased the new 4k max fs. It shows the usb memory in my fire tv but no side loaded apps will load there and if I eject and reinsert the usb drive into my adapter, a message pops up which says limited access, fire tv can not access apps on this usb device. The usb drive is a new sandisk 32 gb usb drive. I tried 2 older usb drives with the same. I have used expanded memory on my older 4k max fs without a problem.
The access permisions issue is something that has been discussed. AFTVnews has addressed this with how to fix it using ADB commands but unfortunately Amazon has not released an update addressing this issue and I have not seen any info if or when they will.
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Yeah new 4K Max huge disappointment only positive thing is huge storage expansion but pretty much everything else about OS8 is full of glitches should have waited awhile to buy until they fixed it 3rd gen cube is best Amazon device by far much more powerful and easy storage expansion
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So very true @alone. No idea why Amazon rushed these new Max to market. But it’s all about money. Huge bill to develop and bring to market. So rush them to production and let the masses trouble shoot them. Then patch them. Bad strategy imho, but seems even Google is going that way.
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well roku, apple, and amazon devices are the most popular streaming devices so as long as people keep buying them at the rate they are unfortunately amazon can do things like this and it won’t matter people love companies like this and won’t hold them accountable for shitty moves like this.
So very true. The big problem is, most of these huge companies are all doing pretty much the same thing, just in slightly different ways. Google isn’t any different than Amazon. But this is all old news. We have to choose our poisin and learn to adapt.
That holds true with a lot of USA products. Look at general motors and ford. They’re having so much problems with their trucks here in California it’s ridiculous.
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So is there a fix for this? I have a usb drive that is showing, but I can’t move apps over to it. I formatted it, and now the problems. Before I did that, I had Kodi 20.3 installed, and now it has totally disappeared from my apps. I tried to update to 20.5, but Kodi still doesn’t appear in my apps. I dont know what mistakenly I did.
Nothing’s changed since October.
Happy anniversary @AJS1 
Took me a minute to figure out what that was. LOL
So I’m still experiencing limited device access. It asks if I want to reformat my USB. Last time I did, I lost everything and had to reinstall everything. What to do?
Can you go into the sticks storage access and safely “eject” the USB drive. Restart/reboot your device and then plug the stick back in?
I can try that. Thanks for the reply, I’ll let you know if it works.
I did what you said, however, it keeps saying limited device access. Can’t access apps on this USB device. I don’t want to reformat if I don’t have to. I haven’t had any problems until now
Hmm. So we have a new issue. Do you have a file app like X-plore?
No, but I can download it and see if that works. Thanks..
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I downloaded X Plore, ejected the USB, restarted firestick, still saying limited device access. So I cannot move apps over to external storage..This has me pulling out what little hair I have left. I refuse to reformat the USB because I had to re-install all my apps, Kodi, Netflix, etc.. also, when I try to open Kodi from my apps, I get a black screen and it doesn’t open. I have to open it from within applications, clear cache, force stop then launch Kodi. Really weird. Any advice would be much appreciated. Where’s Troy when you need him? 
Have you enabled the Dev Options and gone in there and turned the setting on for forcing apps to usb?
Thanks for the reply Miki, yes Dev options is turned on. But it keeps telling me to format my USB. Limited device access is all it keeps saying. I wonder if the drive is corrupted? I haven’t done anything for that to happen.