How to prevent Android 11 from installing - General Questions and Answers

I have a Pixel 2 xl that I am planning on using for my son to fly his (X-mas present) drone with, the phone has no active cell service. The drone app will not work with Android 11. Tonight when I set the drone up and did some test flights, I noticed that the phone was asking for a restart to finish upgrading to Android 11. How do I prevent the upgrade? I already went into developer options and turned off automatic system updates. I haven't tried restarting to see if it works. Does anyone have any ideas? Thanks in advance!

golphinn said:
I have a Pixel 2 xl that I am planning on using for my son to fly his (X-mas present) drone with, the phone has no active cell service. The drone app will not work with Android 11. Tonight when I set the drone up and did some test flights, I noticed that the phone was asking for a restart to finish upgrading to Android 11. How do I prevent the upgrade? I already went into developer options and turned off automatic system updates. I haven't tried restarting to see if it works. Does anyone have any ideas? Thanks in advance!
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I think setting you mentioned in developer settings should prevent upgrade. Unless you enabled it only after receiving upgrade notification, then upgrade might happen. The good news is that you can always downgrade from Android 11 to 10 and there's plenty of time till Christmas so I would probably just restart and see what happens. If phone gets upgraded, look into Pixel 2 XDA thread about downgrade/OS flashing.

Related

[Q] Wifi while in airplane/flight mode?

Hi! I'm moving to WP7 soon, when my ordered HD7 comes home. While I wait, I was wondering if you can enable WiFi while in airplane mode.
University->Signal inhibitors -> I don't want the phone looking for signal all day draining battery, but I use Wifi.
I come from Android so I use this almost everyday.
Oh, and if you can say too, I was wondering what happens when Microsoft rolls out an update: do all the phones get updated soon or it depends on the phone maker to update or not (like Android)?
Thank you very much.
You can use wifi in airplane, but you have to turn it on manually, because after switching to airplane mode all connections are turned off.
And update is not at the same time for all WP7 phones.
kamelot.sk said:
you can use wifi in airplane, but you have to turn it on manually, because after switching to airplane mode all connection are turned off.
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Click to collapse
Ok, thank you very much. Couldn't find any info about it. Perfect
Can you give me some light about the updates policy?
When update for your phone will be available, you'll be notified (directly by phone, unless you have turned off update checking in settings). Then you will connect the phone to the PC and Zune (you must install it on your computer) will do all the work (backup and update)
Latest official version of WP7 update you can check at WP Update History page.
kamelot.sk said:
When update for your phone will be available, you'll be notified (directly by phone, unless you have turned off update checking in settings). Then you will connect the phone to the PC and Zune (you must install it on your computer) will do all the work (backup and update)
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Click to collapse
Thank you very much for your fast and concrete replies. I hope I'll have a great time in this forum section from now on.
You are welcome and enjoy your new WP7 phone!

Geofence

I used an app, or rather, a Tasker Plugin called AutoLocation. This is the first app of its kind that uses the Android Fused location service to determine whether you're inside or outside a circle called Geofence. I first used it on Nexus 4 running android 4.3. I had 3 Geofences defined. Two to remind me to exit a highway at different locations to run errands. The 3rd one to send an SMS to say I'm close to home. They worked flawlessly, I mean flawlessly. The trigger was instantaneous, accurate and repeatable.
Then I got my Nexus 5. This App simply did not work. I worked directly with the developer in different controlled manners and none was able to reproduce the result that I was used to. I could be in the middle of the geofence and the app had no idea where I was. And in some cases it finally decided that I was inside but it would randomly exit repeatedly even though I never left the circle. For reference, the radius was set to 3Km. I have determined that it was Kit Kat that killed the app.compatibility issue. Let's be patient and time may fix it.
Then my Nexus 4 got the Kit Kat upgrade. I did the identical setup as the Nexus 5 and guess what, it just worked without having to mug around with anything. It worked exactly the same as when it was running 4.3.
I said to myself, Kit Kat on Nexus 5 is not identical as Kit Kat on Nexus 4. Let's wait a little more. 4.4.1 came, 4.4.2 came, Google Play Service 4.1 came, Google Play Service 4.2 came. Still not working.
There is now a new app in town called Geofence Memo which is a self contained app without having to have tasker installed. May be it was the app after all. Same test on nexus 4 and nexus 5. It worked on Nexus 4 but not Nexus 5.
Last resort. May be, just may be it was hardware issue. Bought myself a Red Nexus 5. Same.
HELPPPPPPP
Well I guess we should get the obvious out of the way.
1) What did you already do? Especially when you were working with the dev.
2) What ROM are you using? Are you running any task "killing" apps like greenify, or clean master?
3) Location settings, what are they? High Accuracy? Also, have tried toggling scanning always available (WiFi settings -> 3 dots -> Advance)?
Sorry if you tried all these already, but getting the obvious out of the way is sometimes necessary as it reminds us to double check things we may have forgotten to check, especially if you get forgetful like I do in my old young age.
Geofence problem
TheAltruistic said:
Well I guess we should get the obvious out of the way.
1) What did you already do? Especially when you were working with the dev.
2) What ROM are you using? Are you running any task "killing" apps like greenify, or clean master?
3) Location settings, what are they? High Accuracy? Also, have tried toggling scanning always available (WiFi settings -> 3 dots -> Advance)?
Sorry if you tried all these already, but getting the obvious out of the way is sometimes necessary as it reminds us to double check things we may have forgotten to check, especially if you get forgetful like I do in my old young age.
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Click to collapse
100% stock ROM. No root, no task killing app. I've tried factory reset and have just the one app installed, absolutely nothing else. That was back in November last year. When I received my red nexus 5 I did the same thing again. Same result. I've tried setting location to high accuracy, battery savings and device only. I also tried enabling allow scanning with WiFi off. Nothing works. Meanwhile my old Nexus 4 which my daughter uses works flawlessly.
Powergreb said:
100% stock ROM. No root, no task killing app. I've tried factory reset and have just the one app installed, absolutely nothing else. That was back in November last year. When I received my red nexus 5 I did the same thing again. Same result. I've tried setting location to high accuracy, battery savings and device only. I also tried enabling allow scanning with WiFi off. Nothing works. Meanwhile my old Nexus 4 which my daughter uses works flawlessly.
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Click to collapse
Does this GPS issue apply to you? That thread may help you if it isn't an isolated GPS issue (i.e., A GPS issue not isolated to your GEO Fencing app).

Phone Hacked... Again.

I have a Galaxy SIII mini which has been hacked 4 times in the last 8 months that I have had it. Usually, the first 3 times, were kids doing pranks, turning on my bluetooth,etc but this last hack was malicious. Started turning on my GPS, bluetooth, and camera flash light then progressed to changing my system language and finally making it so that my sim couldn't connect to any cell towers. I have tried app locks, but this last time inspite of two seperate app locks, he succeed with ease to change my settings. I also subscribed to a VPN with a NAT firewall and that didn't help at all either. Now I have redid the OS again, this time installing CM 11 and I welcome any suggestions on how I can stop this from happening all of the time. Thank you.
Gaon101 said:
I have a Galaxy SIII mini which has been hacked 4 times in the last 8 months that I have had it. Usually, the first 3 times, were kids doing pranks, turning on my bluetooth,etc but this last hack was malicious. Started turning on my GPS, bluetooth, and camera flash light then progressed to changing my system language and finally making it so that my sim couldn't connect to any cell towers. I have tried app locks, but this last time inspite of two seperate app locks, he succeed with ease to change my settings. I also subscribed to a VPN with a NAT firewall and that didn't help at all either. Now I have redid the OS again, this time installing CM 11 and I welcome any suggestions on how I can stop this from happening all of the time. Thank you.
Click to expand...
Click to collapse
what kind of hack are you talking about? is someone using your phone, or remotely accesing it?
remotely accessing it. no one has physical access to my phone.
You should set a encryption password for your phone and use the app : Lockdown pro to restrict access to everyone who don't know the password.
Stay tuned for my first CM11 theme soon.
What do you mean by encryption password? You mean to encrypt my phone?
I did install that app. One thing that I really like about it is it's ability to stop the installation of apps which is what I think that the hacker is doing: installing some sort of app on my phone.
Settings > Security Settings - Encrypt phone > see instructions there .
@Gaon101
Stay tuned for my first CM11 theme soon.
After doing more reading online, I believe that the hacker(s) may have their own 'cell network' and may be exploiting my phone whenever it connects to it. How can I prevent this from happening if that is the case?

No VPN on Marshmallow

After I updated my sprint galaxy s6 edge to marshmallow OTA, VPN is not working for me. I have tried more than 5 different VPN apps, but none of them work. They say they are connected, but as soon as I switch to a new app, they stop working. VPN worked fine before I updated, but now it is not. Please help!
Yoshi20017 said:
After I updated my sprint galaxy s6 edge to marshmallow OTA, VPN is not working for me. I have tried more than 5 different VPN apps, but none of them work. They say they are connected, but as soon as I switch to a new app, they stop working. VPN worked fine before I updated, but now it is not. Please help!
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Click to collapse
I've got this problem too, on chinese 9250
Go to Settings > More > VPN
Set up your VPN in there. I've set up VPN on my Galaxy S6 and S7 using L2TP IPSec with a signed certificate from GoDaddy.
I had it working on the S7 with a PSK also. Both phones are running Android v 6.0.1 Marshmallow.
It's strange but the VPN connection settings are different. My S6 is a Sprint phone, and I can't assign it a Certificate Authority. But the Verizon S7 won't let me save the VPN connection without a CA. I have to install the certificates in different ways for each phone as well. Very odd.
Anyway good luck.
MrKrunch said:
Go to Settings > More > VPN
Set up your VPN in there. I've set up VPN on my Galaxy S6 and S7 using L2TP IPSec with a signed certificate from GoDaddy.
I had it working on the S7 with a PSK also. Both phones are running Android v 6.0.1 Marshmallow.
It's strange but the VPN connection settings are different. My S6 is a Sprint phone, and I can't assign it a Certificate Authority. But the Verizon S7 won't let me save the VPN connection without a CA. I have to install the certificates in different ways for each phone as well. Very odd.
Anyway good luck.
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Click to collapse
Could you tell me how to do this please?
same problem for me Samsung s6 edge android 6..0.1 VPN apps work.... cyberghost / opera max/ and the rest .
PS after Zamber88 suggestion go to settings>> battery>app power saving > turn off for opera max or other vpn app.
PPS: if that is not enough do this: Settings >>Battery >> Battery Usage >> more (right up cornet button) >> Optimize battery usage >> select All apps and choose your VPN app and turn off .
also if in OPERA MAX when u use mobile data u get the error "enable background data " is because of the power saving.
CASE CLOSE !
That's a really strange issue. We did a lot of testing on MM with Nexus devices and everything works as intended. We even have a S6 Edge with MM that works fine (SM-G925F with one of the Unknown build listed on sammobile IIRC).
All I can come out with now is that you could try checking if there aren't any battery saving features interfering with the VPN apps.
Solved.
S6 edge.. disabled powersaving features. Vpns are working fine. Strange but cant figure out how powersaving is meddling with vpn. Solved.
Its not power saving . its restrict background data . just off the restrict background data and will work fine
zamber88 said:
That's a really strange issue. We did a lot of testing on MM with Nexus devices and everything works as intended. We even have a S6 Edge with MM that works fine (SM-G925F with one of the Unknown build listed on sammobile IIRC).
All I can come out with now is that you could try checking if there aren't any battery saving features interfering with the VPN apps.
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Click to collapse
I'm not sure if anyone can help me over here, but I'm not finding anything in the Nexus forums. Since @zamber88 did MM testing with Nexus, maybe you can help me with my Nexus 6. I have a 10 day trip to China coming up in a couple weeks and really need to get VPN working.
Google searches haven't helped, except to point me here. I have purchased VPN Unlimited and tried it with their app and an OpenVPN app. I got a free Galaxy J7 as a spare through the T-Mobile promotion a while back, and both apps work on it with no changes at all. Neither work on my Nexus 6, despite turning off power saving and restricting background data for both apps.
When I select a server, the J7 the Allow connection pops up, I OK it, and connect. On my Nexus 6, the refused to grant permission pops up. See the attached screenshots.
Any help would be greatly appreciated.
JimSmith94 said:
I'm not sure if anyone can help me over here, but I'm not finding anything in the Nexus forums. Since @zamber88 did MM testing with Nexus, maybe you can help me with my Nexus 6. I have a 10 day trip to China coming up in a couple weeks and really need to get VPN working.
Google searches haven't helped, except to point me here. I have purchased VPN Unlimited and tried it with their app and an OpenVPN app. I got a free Galaxy J7 as a spare through the T-Mobile promotion a while back, and both apps work on it with no changes at all. Neither work on my Nexus 6, despite turning off power saving and restricting background data for both apps.
When I select a server, the J7 the Allow connection pops up, I OK it, and connect. On my Nexus 6, the refused to grant permission pops up. See the attached screenshots.
Any help would be greatly appreciated.
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Click to collapse
I'll try to cover all of the bases from easiest to most cumbersome. Given you have some time on your hands this should helpful. Read through the list before doing anything and once you start doing stuff note it down as you're going so that we'll be able to pinpoint any other problems that could pop up. If you succeed then you'll have an answer pretty much ready for posting .
Reboot. Sometimes freshly installed VPN apps fail exactly like the screenshots show.
Try setting up a VPN connection with another app. Shameless plug: Opera Max, Opera VPN (note: there's an issue in Max which makes some VPNs disconnect after a couple of minutes so make sure to kill it before running any other VPNs).
Scan the device with Avast, AVG and Avira to rule out any worms.
Rule out any other apps interfering by booting into safe mode and try connecting again (with your app and, Opera Max for a sanity check).
If you don't want to commit to steps that will follow (or the step before this one succeeded) remove apps from least to most needed retesting with your app and Max after each uninstall.
Upgrade to Android Nugat. It shouldn't break anything and could potentially fix this issue. Either ways it's always a good idea to upgrade when updates are available. It's not like you're on iOS .
Now it's a god time to make a backup (frankly, anytime is good for a backup). If you went over with uninstalling apps making one will be easier. If you have root on your device you probably have TWRP, make a backup with it and download it to your PC. You could also make a Titanium backup if you're not big on setting up basic apps but it's optional. If you don't have root just backup all sensitive data (photos, videos, settings if it's possible to export these in-app). Also note down all apps you can't live without. Google Play has a history of installed apps but going through it is a pain and the "Copy settings from another device" option when setting up a fresh device is helpful but will not restore in-app settings. Also I would advise to not use it given that the culprit can sill be lurking in your apps.
MAKE THAT BACKUP, there's no going back from here . Do a factory reset. After that as mentioned before don't restore settings and set up a "new" device. Set up your accounts and check if both VPN apps work (they should by this point). Now start installing your basic app setup and after configuring each one make sure that the VPN still works.
If somehow this didn't help make sure you're not running a ROM that's botched by flashing the official system image (and upgrade to Nugat as a bonus). If you know what I'm talking about then you will know how to do it, if you don't know AND the issue still reproduces the there's something really strange going on.
By now you should have your issue solved, hopefully in the first three steps at most. There's one other thing to take into account. The great firewall does not like VPNs and there's a fair chance that Unlimited VPN will not work so be prepped to have a backup plan. You could try with Opera VPN (no idea if it works, not my project, would be nice to get feedback) and also get a trial for any service that looks interesting to you on this list.
Hope this helps and that you'll have a safe trip .
UPDATED minutes after posting:
One simple step I missed: reboot. In most cases it solves exactly the issue you're having. No idea why it happens but probably there's a 2y bug opened and tagged as low prio in the Android project .
Thanks for the quick reply!
1. Besides VPN Unlimited, I've already tried OpenVPN for Android and OpenVPN Connect. They both use .ovpn files from VPN Unlimited. I just installed Opera VPN and whether I swipe through the intro screens or skip them, I can't click on "GOT IT"; nothing happens. I think this might be the crux of the problem as some of the buttons in the other VPN apps don't respond either. I'm "almost" positive it's not a screen overlay problem because I used to use f.lux that did that, got rid of it, and haven't had any problems since.
2. I run Lookout Security & Antivirus and just scanned again to be sure. Nothing found.
3. I tried safe mode earlier, only to learn that you can't install or run any aftermarket apps.
4-7. Nougat hasn't been released yet and I'm too dependent on systemless root and Xposed, I'm still stock rooted on MM 6.0.1 with the September security update. I do run TWRP and Titanium Backup and make sure their backups are up to date before I try anything dangerous.
8. Unless you can think of why I can't click on "GOT IT" in Opera VPN, I guess my next step is to sideload the latest OTA again and try all of the VPNs before installing TWRP, SU, and Xposed. That's about all that's left.
JimSmith94 said:
Thanks for the quick reply!
1. Besides VPN Unlimited, I've already tried OpenVPN for Android and OpenVPN Connect. They both use .ovpn files from VPN Unlimited. I just installed Opera VPN and whether I swipe through the intro screens or skip them, I can't click on "GOT IT"; nothing happens. I think this might be the crux of the problem as some of the buttons in the other VPN apps don't respond either. I'm "almost" positive it's not a screen overlay problem because I used to use f.lux that did that, got rid of it, and haven't had any problems since.
2. I run Lookout Security & Antivirus and just scanned again to be sure. Nothing found.
3. I tried safe mode earlier, only to learn that you can't install or run any aftermarket apps.
4-7. Nougat hasn't been released yet and I'm too dependent on systemless root and Xposed, I'm still stock rooted on MM 6.0.1 with the September security update. I do run TWRP and Titanium Backup and make sure their backups are up to date before I try anything dangerous.
8. Unless you can think of why I can't click on "GOT IT" in Opera VPN, I guess my next step is to sideload the latest OTA again and try all of the VPNs before installing TWRP, SU, and Xposed. That's about all that's left.
Click to expand...
Click to collapse
1. Some of the buttons don't respond? What about Opera Max? Opera VPN is fairly new in the game and it still can have issues (though I haven't found any during the brief time I was testing how it works with Max). This sounds really strange. Does it happen in other apps?
2. Rerunning the same Antivirus app will not double the likelyhood of finding a thread . Try with Avast too. You can safely uninstall it after that.
3. What aftermarket apps you have in mind? APK's installed not from the Play Store? It shouldn't impact testing if Unlimited VPN works fine. All background stuff shouldn't run by definition in safe mode.
4-7. Nougat is released. After beta 4 they started releasing OTAs and images for the final release on the beta channel and now it's going to go global. There are factory images for Nexus 9 which I upgraded recently and we have a Nexus 6 but after checking it looks like got the OTA from the beta channel, so it will take a while for the official release to roll out to 6 (though 6P and 5X already have it). Also you're right, there's no systemless root for it yet. We're rolling standard SuperSU on test devices in the office (no need for Android Pay or banking apps there).
8. I'll reach out to the VPN guys for info on gathering debug information for this. Meanwhile try with Opera Max or even Betternet. Do these also fail to connect? Also does it reproduce on mobile and on WiFi?
Got a response from the VPN guys. Most probably your network blocks VPNs. Try pinging http://api.surfeasy.com/ from mobile and WiFi. If it doesn't go through then your network provider is blocking it. Probably it will be the same case for other VPNs. The issue is known and they'll probably add an error message in the next release .
zamber88 said:
1. Some of the buttons don't respond? What about Opera Max? Opera VPN is fairly new in the game and it still can have issues (though I haven't found any during the brief time I was testing how it works with Max). This sounds really strange. Does it happen in other apps?
2. Rerunning the same Antivirus app will not double the likelyhood of finding a thread . Try with Avast too. You can safely uninstall it after that.
3. What aftermarket apps you have in mind? APK's installed not from the Play Store? It shouldn't impact testing if Unlimited VPN works fine. All background stuff shouldn't run by definition in safe mode.
4-7. Nougat is released. After beta 4 they started releasing OTAs and images for the final release on the beta channel and now it's going to go global. There are factory images for Nexus 9 which I upgraded recently and we have a Nexus 6 but after checking it looks like got the OTA from the beta channel, so it will take a while for the official release to roll out to 6 (though 6P and 5X already have it). Also you're right, there's no systemless root for it yet. We're rolling standard SuperSU on test devices in the office (no need for Android Pay or banking apps there).
8. I'll reach out to the VPN guys for info on gathering debug information for this. Meanwhile try with Opera Max or even Betternet. Do these also fail to connect? Also does it reproduce on mobile and on WiFi?
Got a response from the VPN guys. Most probably your network blocks VPNs. Try pinging http://api.surfeasy.com/ from mobile and WiFi. If it doesn't go through then your network provider is blocking it. Probably it will be the same case for other VPNs. The issue is known and they'll probably add an error message in the next release .
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Click to collapse
I installed Opera Max and it was the only app that gave me a helpful error message, so thank you and the coders for that! The message said something like it couldn't establish a VPN connection due to an Xposed module. I disabled Xposed, rebooted, and all of my VPN apps worked. Further searching found this thread saying that Xposed's Immersive Mode was the cuprit. http://forum.xda-developers.com/xperia-z2/help/vpn-to-t2850981
I re-enabled Xposed and disabled only Immersive Mode and VPN still works. Hopefully this will help others in this thread too.
JimSmith94 said:
I installed Opera Max and it was the only app that gave me a helpful error message, so thank you and the coders for that! The message said something like it couldn't establish a VPN connection due to an Xposed module. I disabled Xposed, rebooted, and all of my VPN apps worked. Further searching found this thread saying that Xposed's Immersive Mode was the cuprit. http://forum.xda-developers.com/xperia-z2/help/vpn-to-t2850981
I re-enabled Xposed and disabled only Immersive Mode and VPN still works. Hopefully this will help others in this thread too.
Click to expand...
Click to collapse
I missed that you mentioned Xposed earlier. We implemented Xposed detection to prevent abuse so it's good to hear that it helped you to resolve your issue . Thanks forwarded to the developer behind it . Enjoy your trip!

Recently downgraded from Android 12 to 11 now having to force update

So after upgrading to Android 12 I was having issues with a few apps I need daily that would constantly crash, after contacting the developers to see if they had a plan to update and getting no reply I decided to downgrade back to Android 11.
My issue now is that i disabled auto updates in developer mode but it still asked me for an update a few minutes ago and it says I can only postpone it 2 times? And now it's saying it will automatically update tomorrow morning.
Is there a work around to this? I was thinking of maybe rooting my phone but found out if I do Knox secure fold wouldn't work anymore after doing that and that's an app I need.
I haven't used Samsung devices for a good while, but I believe that you can disable automatic updates through developer options. I don't think it stops the notifications, though - if your device is able to connect to the Internet and sees an available update, it will notify you.
V0latyle said:
I haven't used Samsung devices for a good while, but I believe that you can disable automatic updates through developer options. I don't think it stops the notifications, though - if your device is able to connect to the Internet and sees an available update, it will notify you.
Click to expand...
Click to collapse
I did disable auto update in developer options but it still did the update.
er842 said:
I did disable auto update in developer options but it still did the update.
Click to expand...
Click to collapse
There might be an option in settings, I believe Settings > Software Update > disable Download Update Automatically and Scheduled Software Update.
disabled auto updates
just use
ADBAppControl-1.7.3
and delete, software update

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