"Unknown sources" missing on Oreo - Samsung Galaxy S8+ Questions & Answers

Hi, since the Oreo update I can't find the "Unknown sources" to install APK's freely. I'ts not under "Lock Screen and Security", and I have enabled Chrome in "Applications/Special Access/Install other apps" and I'm trying to install apps from the "Downloads" section of chrome, but it dosn't work this way either.
I was trying to install the Pixel Launcher as seen from here: https://theunlockr.com/2018/03/13/make-samsung-galaxy-s9-look-like-stock-android/
But everytime I try it I get the "<!> Application not installed".
I don't know exactly what says in english, I'm using my phone in spanish.
Any ideas? Thanks!

If you go to Settings-Apps-3 Dots-Special Access-Install Unknown Apps.
They've moved it so only certain apps can install unknown apps

Please help how to fix this problem. This doesn't work, I tried installing Accuweather pro several times. I have the app saved to my Google Drive, I click on the app and I see something called 'Staging App' and then I get this alert ' There was a problem parsing the package'. I currently had an older version of Accuweather pro installed and working fine. I decided to remove the old version and then reinstall it and I received the same alert. FYI the old Accuweather app was installed before the Oreo update.
Sprint Network
Galaxy S8+

NRHTX said:
Please help how to fix this problem. This doesn't work, I tried installing Accuweather pro several times. I have the app saved to my Google Drive, I click on the app and I see something called 'Staging App' and then I get this alert ' There was a problem parsing the package'. I currently had an older version of Accuweather pro installed and working fine. I decided to remove the old version and then reinstall it and I received the same alert. FYI the old Accuweather app was installed before the Oreo update.
Sprint Network
Galaxy S8+
Click to expand...
Click to collapse
Have you tried downloading your APP file from Google Drive to your phone then opening the copy on your phone, that should install the .apk

Go to settings on the phone >> apps >> 3 vertical dots at the top right corner >> special access >> install unknown apps >> and there enable the permission from where you are trying to download it.

All thank you,
I found out that you now have to download the app to your phone. Google Drive does not allow you to download and manually install .

Dear sir/madam,
Following your answer, in specific this part, "They've moved it so only certain apps can install unknown apps", perhaps someone could help me out. I use the Firefox Focus browser and this app doesn't show up in the list of apps that are allowed to install unknown apps.
* Does this mean Firefox Focus can't install apps from unknown apps, since it's not on the list?
* And perhaps we can conclude from that it will never be allowed to do so?
* Or would this app not be on this list, because I've never tried installing anything using this browser?
I guess the real question would be, what populates this list?
I hope to hear from you, thanks in advance, all the best.

Form what I've seen, 1st time you try to install apk from an app it asks you if you want to allow it?

dalanik said:
Form what I've seen, 1st time you try to install apk from an app it asks you if you want to allow it?
Click to expand...
Click to collapse
That's what I was thinking as well, funny thing is that 'Google Chrome' is in the list and I've never used that browser. Unless it's there, because it's from Google

I have followed the above suggestions and have allowed Chrome to install apps since that's the browser I'm using. The phone says I have downloaded the app but it is not giving me any option to install it? Where did the download go and how can I get it actually installed? This is an app for work.
Edit: Nevermind - I restarted the phone and tried again and it worked. thanks.

Related

[Q] Unable to install apps from Play Store

Hello,
Post rooting (repenting it already) my Samsung Galaxy S Plus (GTI9001), I am unable to install any apps via Play Store. I am able to install apk's from the SD Card though. I un-rooted the phone but problem persist.
When I try to install any app, I can see the app being downloaded on the notification but the moment the download completes nothing happens. When i go to Play Store > My Apps I could see that it still says downloading though the app is fully downloaded. I guess some permission issues here. Please help.
I have already cleared Play Store cache and tried.
reyolin said:
Hello,
Post rooting (repenting it already) my Samsung Galaxy S Plus (GTI9001), I am unable to install any apps via Play Store. I am able to install apk's from the SD Card though. I un-rooted the phone but problem persist.
When I try to install any app, I can see the app being downloaded on the notification but the moment the download completes nothing happens. When i go to Play Store > My Apps I could see that it still says downloading though the app is fully downloaded. I guess some permission issues here. Please help.
I have already cleared Play Store cache and tried.
Click to expand...
Click to collapse
Hello,
Which Rom do you use? Maybe you have to root it again. Usually you can fix permissions in CWM. Have you tried to restart after "Download is finished". For Me it was working on my Asus EeePad.
Reply to Chris
Chris089 said:
Hello,
Which Rom do you use? Maybe you have to root it again. Usually you can fix permissions in CWM. Have you tried to restart after "Download is finished". For Me it was working on my Asus EeePad.
Click to expand...
Click to collapse
Chris, I am still on stock ROM and I am not likely to go for a custom ROM since there are not much good ROM's available for Samsung Galaxy S Plus and Yes I tried multiple reboots. After reboot, on the notification it says that app download failed due to some error with a number.
Thanks for your reply.
Same issue
Reyolin,
I have had the same problem on my Samsung Galaxy S Plus but it has only started today. Mine has been rooted for about 5 months now, since I first got it.
I did a search using EStrong File explorer and it found a file called "downloadfile.apk" in /cache (I assume this is the file as it is the same file size as stated in the Play store. However, when I tried to run or copy it it had disappeared.
It's almost like the APK is being downloaded and then being deleted before installation actually occurs.
I think rooting your phone and the inability to install apps is just coincidental.
I will do some more playing about and see what I can find (I also already tried removing the Google Play updates (to go back to the old style Market). This still did not solve the problem.
Please use the Q&A Forum for questions &
Read the Forum Rules Ref Posting
Thanks ✟
Moving to Q&A
Exactly same proble
Hi,
I have exaclty the same problem (galaxy s plus), rooted 5 month ago and problem started 2 days ago...
I updated superuser at that time and tried to update the su binarie but it fails on validation of new su and stopped (not replacing old su), this is the only thing I can remember of. root is still working with old su. Maybe the cleaning needs to be done ?
Has someone found a way to fix this?
edit:
after some investigation, this is what happens:
if I try to install one app from play store, it is downloaded correctly and then nothing happens.
the file downloaded is in /cache/downloadfile.apk
If I copy this file to /sdcard/external_sd/downloadfile.apk and run it manually it installs correctly.
Stef
galaxy s plus specific issue
i am having the same problem since morning and i also use Samsung galaxy s plus, so certainly the issue is phone specific.
Good news! Problem solved for me
Hi,
I contacted google play support and her was there answer:
Thanks for contacting us and I am sorry for the delay in responding.
We've gotten some reports that users with Samsung Galaxy S Plus devices running Android OS version 2.3 (Gingerbread) are having trouble using Google Play. We're aware of this issue and to solve it we recommend you to uninstall updates to the Google Play app by following these steps:
1. Tap Menu > Settings > Applications > Manage applications
2. Find the "All" tab
3. Scroll down to Play Store and tap to select
4. Tap "Uninstall updates"
Thank you in advance for your patience and understanding.
So I followed this and it works again!
Here are the steps after doing google recommendations:
- click google play icon, it will open old google market
- install an application, for me it worked again!
- exit google market
- click again the google play icon, it will ask to accept google play license
- click yes and then try to install another app, it worked again!
Hope this will solve also your issues,
Stef
I Just had the same problem. Here is how I fixed it,
- Uninstalled updates for Google Play
- I added a New Google Account.
- I Then signed into the new Google Account, Then Sign Into Your Main Account
And "BOOM" problem solved.

Aptoide download failed error

Sorry if this is the wrong section to post in, I'm new to xda. So I have been having a problem with aptoide. Everytime I try to download and install an app it gives me "download failed due to network" error. I have unknown sources checked (of course), and no network issues (as I am online right now). it will work one time if I delete and reinstall the app. It just started happening as I always use aptoide. I am running illusion rom on Samsung galaxy note 2 t889 4.2.2 any help would be much appreciated, thanks in advance!
Sent from my SGH-T889 using xda premium
Idem...
EDIT:
This work for me!
(http://forum.xda-developers.com/showthread.php?t=2264582 #5)
"Make sure you've cleared the cache and data of both the Google Play store app and the download manager." eddy4823
LightRider
I have problem whit Aptoides aswell.
Have downloaded the Aptoide Apps Browser from Play Store.
When i go in to Aptoide Apps Browser and want to download a app its say i have to install Aptoide on my phone and have to download Aptoide.apk
But everytime to downloading failed.
And i have checked Installation of unknown sources.
Anybody help me?
Xperia z1 c6903 4.4.2 14.3.A.0.681 Rooted and Unlocked Bootloader.
Found out what to do
The thing was it dident failed to download of some reason. But i had to go inn to a root browser in to Download folder on sdcard. And install it from there.
But i Still have problems whit installing and downloading app from Aptoide.
I've been having the EXACT same problem. Every time I try downloading an app it says failed due to network error or something like that. Basically telling me it won't work because I have no network connection but I do! I haven't been able to figure it out. I tried uninstalling it and reinstalling and changing around my settings but nothing has worked. I haven't added anything or done anything different Before this started happening so I don't know what's going on someone please help!!!
stephnwright21 said:
I've been having the EXACT same problem. Every time I try downloading an app it says failed due to network error or something like that. Basically telling me it won't work because I have no network connection but I do! I haven't been able to figure it out. I tried uninstalling it and reinstalling and changing around my settings but nothing has worked. I haven't added anything or done anything different Before this started happening so I don't know what's going on someone please help!!!
Click to expand...
Click to collapse
Did you bother reading two posts above yours?
LightRider_ said:
Idem...
EDIT:
This work for me!
(http://forum.xda-developers.com/showthread.php?t=2264582 #5)
"Make sure you've cleared the cache and data of both the Google Play store app and the download manager." eddy4823
LightRider
Click to expand...
Click to collapse
This worked for me.
Hi, I'm having a problem with my updates in Aptoide. I give update and says "Error apk Not Found"
try this one Tampermonkey script which allows you to download apk and obb directly to pc.
only chrome, maelstrom and opera browser are supported.
https://openuserjs.org/scripts/FaizanAnwerAli/Aptoide_APK_and_OBB_Online_Downloader
Aptiode is NOT allowed!
It is considerd warez!
Havent you all read the forum rules?!

[Q] How to manually install - getting "App not installed." error

I am trying to install an App which for some reason will not install in the country I am visiting. The App is a free App, but Google Play has blocked it from downloading into this country. I managed to download the app from the evozi apk-downloader but when I click on it in File Manager it will not install and I get an "App will not install." error.
I would like to try and install the app manually but despite all my searching have not been able to come up with a way to do this. I tried copying the apk file to the system/app directory and rebooted, but that did not work. I then downloaded ZipSigner to sign the apk file and put the created opex file in the system/app folder and rebooted again, but still no results. I've tried some other installers but still unable to get it to install, even when I am offline with my GPS off.
How can I manually install an app to bypass the Google app installer?
charliep8 said:
I am trying to install an App which for some reason will not install in the country I am visiting. The App is a free App, but Google Play has blocked it from downloading into this country. I managed to download the app from the evozi apk-downloader but when I click on it in File Manager it will not install and I get an "App will not install." error.
I would like to try and install the app manually but despite all my searching have not been able to come up with a way to do this. I tried copying the apk file to the system/app directory and rebooted, but that did not work. I then downloaded ZipSigner to sign the apk file and put the created opex file in the system/app folder and rebooted again, but still no results. I've tried some other installers but still unable to get it to install, even when I am offline with my GPS off.
How can I manually install an app to bypass the Google app installer?
Click to expand...
Click to collapse
did you enabled allow installation of apps from sources other than Play store if not go settings> Security> tick unkown sources and try it again it will surely help..and use the file browser from the phone and find the apk that you want to install n click on it and install
hit thanks button if helped
The app I want to install is FlightAware - I travel a lot, hence my desire to install this app before I return to the USA. I found that the ShopSavvy apk also has this problem. Both of these are freeware but somehow they won't install on my phone. My Google account was created in the USA with a USA address and has a USA credit card attached to Google Wallet, but with both apps I just get a "App not installed." error.
I already have the Unknown Sources - Allow installation of Apps from unknown sources Checked and the Verify Apps - Disallow or warn before installation of apps that may cause harm - Unchecked.
hmm then you sure those apks work correctly sometimes errors occur when its incorrectly or incompletely tampered.. or else try this go to settings> application manager>google play store and clear data and clear cache and do the same in google play services and try again
hit thanks button if helped
No, that did not work. I am really looking for a more technical solution to explain how to manually install an opp. Is this not possible in Android?
charliep8 said:
I am trying to install an App . . .
Click to expand...
Click to collapse
I am assuming your phone is rooted. If not, then it will be better to root it before going further.
Here is a link you can try:
http://forum.xda-developers.com/showthread.php?t=2231949
The ADB SDK is available here:
http://developer.android.com/sdk/index.html
App not installed fix:
https://www.youtube.com/watch?v=cJTDwrp-gkQ
Video shows him choosing sim unlock, what does that have to do with apk not installed?
AngelFRANTIX said:
App not installed fix:
https://www.youtube.com/watch?v=cJTDwrp-gkQ
Click to expand...
Click to collapse

Google play store error 505 after nougat update

I use Facebook for work as we have fan pages. I use Facebook pages manager to manage them. I never had Facebook downloaded on the z5(work phone). I received a notice in play store that pages manager had an Update available. That's when I started receiving the 505 error code when trying to update the pages manager. Then I uninstalled the pages manager and tried to reinstall and now it won't install at all keeps giving me the 505 code. I read online where they say to remove the Google account and then add the Google account back,clear cache and data etc.... and if that doesn't work of course reset your phone. I'm not going to reset my phone because I will lose too many important chats with in different applications on the phone.
Is anybody else seeing this issue?
Update: the only apps that won't update are Facebook,f.b.pages manager,and now f.b.messenger....I'm not a Facebook fan,but need them for work.
This is an unlocked phone bought from Sony in Thailand. Model E6653, build# 32.3.A.0.376
Hanger4life said:
I use Facebook for work as we have fan pages. I use Facebook pages manager to manage them. I never had Facebook downloaded on the z5(work phone). I received a notice in play store that pages manager had an Update available. That's when I started receiving the 505 error code when trying to update the pages manager. Then I uninstalled the pages manager and tried to reinstall and now it won't install at all keeps giving me the 505 code. I read online where they say to remove the Google account and then add the Google account back,clear cache and data etc.... and if that doesn't work of course reset your phone. I'm not going to reset my phone because I will lose too many important chats with in different applications on the phone.
Is anybody else seeing this issue?
Click to expand...
Click to collapse
if you are rooted and have sony ric disabled then install playstore again using lucky patched, but first go to settings apps find google play store and wipe everything from that app.
EDIT : Best thing is to use titanium backup(you have to be rooted) and backup every app that you have important chats on, and then do full wipe(excluding /system).
Full stock z5
I'm not rooted. I'm also using a Huawei mate 9 with 7.0 and having no problem with Facebook apps. Thanks.
Hanger4life said:
I'm not rooted. I'm also using a Huawei mate 9 with 7.0 and having no problem with Facebook apps. Thanks.
Click to expand...
Click to collapse
Is the problem only with page manager or with other apps, if only page manager simply download page manager apk from apkmirror and install it and that's it.
Only Facebook apps are effected.
I'm pretty ignorant when it comes to installing apk,roots etc...
Hanger4life said:
Only Facebook apps are effected.
I'm pretty ignorant when it comes to installing apk,roots etc...
Click to expand...
Click to collapse
Apkmirror is source of official apks so it is same thing like if you download from playstore.
So I need to download from unknown sources? Check that option in security section?
Hanger4life said:
So I need to download from unknown sources? Check that option in security section?
Click to expand...
Click to collapse
Open this :
http://www.apkmirror.com/apk/facebo...manager-102-0-0-15-67-2-android-apk-download/
press download apk, then go to:
Settings Security enable unknown sources and then install this apk, just press on it in notification area, after installing disable unknown sources if you want and that's it.
Even though I get a warning message saying it can harm my device?
Thanks for your help.
Hanger4life said:
Even though I get a warning message saying it can harm my device?
Thanks for your help.
Click to expand...
Click to collapse
Ignore it, i use apkmirror for years and never had any problems with any apk.
It downloaded,but I can't locate it. It's not in my app drawer or on any home screen.....
I went to my down load section,and tried to click it,but it says can not because it conflicts with existing package. So I know it's in the phone,but how do I access it...?.....
File Commander or any other file manager and locate Downloads folder and there it is.
When I try to download
Here is the screen shot
It won't open......
Hanger4life said:
It won't open......
Click to expand...
Click to collapse
Well you have to uninstall existing page manager to install new.
L33Tgod said:
Well you have to uninstall existing page manager to install new.
Click to expand...
Click to collapse
I did. I deleted any file that had the word Facebook in it from file manager too. I even went into Google play store under all apps and deleted it from there also.
It's so strange how it only FB,FB messenger,and the page manager
Well this is a bug. I experienced this problem after upgrading to Nougat from Marshmallow using flashtool. Sideloading (apk) won't work. Do a factory reset, that's the only fix.
It's just too much trouble factory resetting. I'll just have to use my other device.
Thanks guys.
you have to do a clean install not update..

No able to Install apps from outside Play Store

Hi guys. I'm not able to Install apps from outside Play Store. I've enabled Install from unknown sources option in settings but everytime I get a message saying Theres a problem with package. I'm not able to Install Fdroid official apk, GCam or any app which is not on Play Store. Please help..
One Plus 7
Updated to latest Android 10
Stock Unrooted device
Try installing from the oneplus file manager.
Tayon1o1 said:
Try installing from the oneplus file manager.
Click to expand...
Click to collapse
Thanks for the reply Still the same error
Try downloading apk with different browser
for me, goto settings, tap the search on top, type in 'unk', choose top return - 'Install unknown apps' . . .
goes to new srcn that sez 'Special app access', go down ten lines to 'Install unknown apps' and there is an app list with allow / not allow
goto your browser ( kiwi, brave ) and toggle to allow.
hth !
Reinstall the rom

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