I have a rooted Samsung Galaxy S4 with CyanogenMod 12.0 on it.
I had a lot of Wifi connections, about 100, which I restored with Titanium Backup, when I installed CM12.
Then I had the effect, that when entering the area of a known Wifi, the phone didn't connect to this Wifi. Only when I disabled mobile data, the phone connected to the Wifi, after this I could reenable the mobile data and the wifi-connection would now stay connected.
So I deleted in the wifi-manager's list all of them and added the important ones one by one, but the problem persists.
Now I think maybe if I reset the Wifi completely and restore a few connections manually it could work again, but I don't know how to reset Wifi.
It is not done by deleting all Wifi-networks in the manager's list, this didn't help.
How can I reset all Wifi settings to factory default, without resetting the phone to factory, which I absolutely don't want to do?
As I have root, there must be some files or database which I had to delete, but which?
In the settings app list (all apps) I don't find the Wifi-Manager app.
Which app and where is it?
Thank.s
frank
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We have an ultrasound scanner that connects to our app on Android devices via USB or a built-in WiFi mini-router.
When connected over USB, one of our customers randomly gets the message “Allow to access ? [set to OK). Also, an option to “Always open when is connected?” (shouldn’t be related, but tried both on and off). Brand new Samsung Galaxy Android S8 Ultra Tablet.
Unable to duplicate in our offices, even when using the same model ultrasound and same model tablet. As expected, the message only appears on a new Android or after a factory reset. It also runs fine at numerous other customer locations.
Tried (1) Android setting “Allow Notifications” off and on, (2) “Notification Categories” indicates “This app hasn’t sent you any notifications.” (3) WiFi and Bluetooth both off and on, (5) both Android and the app are current, (4) neither Samsung nor Google has had any other suggestions,
Not sure if/how this might factor in. When connecting via the built-in WiFi, any Android or iOS device quickly drops the signal while inside the building, but runs fine in the parking lot or elsewhere. Unfortunately, too many other companies in the building to start shutting off routers, and where this occurred at other locations, changing the WiFi channel in the app, turning off other routers, or resorting to the USB cable always solved it.
Any suggestions much appreciated. Thanks, David
I'm developing an app that uses the server in the wifi network (A), which has no internet connection. I use another wifi connection (B) with the internet for normal use. When I debug my app, I switch my android phone to the wifi connection A.
but the wifi network automatically changes to B, while I'm still debugging my app which has no programmatic functionality to change the wifi connection. If I change it back to A, after a few seconds or about in one-two minutes it automatically changes back to B. This is not an expected behavior to me since I can't properly debug my app.
I tried to change the network & internet settings, but no option was found to prevent automatic wifi network switching. What I can guess is my wifi B is selected by android O/S because it has an internet connection. I can forget that connection, but it's not practical because I use both connections in short time periods.
I wonder if any other developer solved this kind of problem in any programmatic or manual way while debugging. I really do not want to include any wifi switching functionality in my app, just need to keep my wifi connection A connected while debugging with Android Studio.
My Android O/S version is 10, Nokia 3.1
Any help would be highly appreciated.
I want to update an android app with android in app update but I have some problem if the phone is connected to a WIFI provided by a cell phone (sharing its cellular network).
In app Update seems to works like this:
When update is found and suggested to the user (firstScreen)
If you are not connected to wifi, you can choose to update the app when wifi will be found or choose to download the update with your cellular data.
if you are already connected to wifi, you don't have this choice (like picture)
When you click on update
If you are connected to wifi coming from cellular network, it's acting like your are waiting for wifi.
It's not a problem in IMMEDIATE update because you could choose to update anyway. But if you have a FLEXIBLE update, it freezes in PENDING status because the phone is waiting for wifi (wifi not from cellular network).
The real problem is that the first screen seems to analyze wifi or and second screen seems to analyze network source.
Maybe because first screen uses NetworkInfo and the second uses NetworkCapability or something.
Does anyone have this problem too?
To prevent user to be blocked when he chose a Flexible update on cellular wifi I will need to found the network source.
I have an application that regularly polls BLE peripherals for data. On rare occasions, the Android device is not able to connect to specific devices for long periods of time.
Not only using my application, but with any other BLE-application I could find on Google play, is it unable to connect to one specific peripheral X. It can connect just fine with other ("identical") peripherals during this state, and other Android devices can connect to peripheral X. This problem tend to go away after a couple of hours or days by itself. Restarting the device, and re-enabling WiFi and bluetooth does not solve it.
The Android devices being used is Samsung Galaxy Tab S2.
Is there some kind of hidden blacklist in the Android BLE stack, to which the address of peripheral X was added for some reason?
EDIT: Manually clearing the "Data" and "Cache" of the System application "BluetoothAdvertisements" in "Settings" appears to fix this state, and the device is yet again able to connect to the device. The big question is now, what is causing this problem, and how can one avoid it.
I recently locked my phone (Samsung Galaxy S2) and I cut my WiFi and data off before it became locked. There for I can not log in to my google account. Can someone help me find a easy way to unlock it without factory reset or just find a way to cut my WiFi or data on? I have tried pressing the home button a amount of times and calling my self and pulling down the notification bar or pressing the back button but none of these options work.
If you USB debugging mode is 'on', you can try unlocking it via adb shell. I found this guide on googling:
http://maxoberberger.net/blog/2013/08/unlock-android-device-using-adb/
None of the options like adb or entering null password or calling worked for my Galaxy Y. But I found this software to backup phone data like contacts,memos,schedules,etc to my pc.
http://www.samsung.com/us/kies/
Since factory reset doesnt affect your sd card, you can later transfer the backup from pc to your phone.