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Closed 6 years ago.
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I want to know on what conditions a device UUID changes? I heard it changes on factory resets and android upgrades, but I have not found any proof or documented sources.
Thanks,
Read here the Documentation
A 64-bit number (as a hex string) that is randomly generated when the user first sets up the device and should remain constant for the lifetime of the user's device. The value may change if a factory reset is performed on the device.
About UUID behaviour on Android update there isn't much documentation online, but you can check This answer
In some rare circumstances, this ID may change. In particular, if the device is factory reset a new device ID
may be generated. In addition, if a user upgrades their phone from certain buggy implementations of Android 2.2
to a newer, non-buggy version of Android, the device ID may change. Or, if a user uninstalls your app on
a device that has neither a proper Android ID nor a Device ID, this ID may change on reinstallation.
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Closed 9 months ago.
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I need to bypass device identification by an app.
I have tried the following method to bypass but did not work:
Using VPN
Clear app data
Reinstall app from playstore
Reinstall from downloaded apk file
Change device id (my device is rooted)
Change google account associated in the device
Insert different SIM Card
What data reference in the device that an app used?
Short answer - only a factory reset will clear those identifiers.
Depends on the android version you are using and considering that everything you mentioned above didn't work, The app is probably using an Android Id or a combination of custom GUID'S.
If it's below android 10, even a factory reset won't necessarily help since it might be using the device IMEI for identification.
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Closed 8 months ago.
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When i set "Show devices without names" off on developer mode i see only a few bluetooth devices around me with their names.
However when i set it on, i see a lot of bluetooth MAC address, around 50 of them, and i expected that after a few minutes they will all broadcast their names, but nothing is changing.
Even if i wait 30 minutes, my devices still don't get their names.
Any idea why some devices won't expose their names?
I have tried waiting for long periods of time, and i have poked around on forums, but nothing helpful found.
Their count is more strange than not reporting a name. Are there indeed 50 BT devices present around you? To me this sounds alike sitting right next to a whole box of beacons.
There's not much to do about it, but one can manually assign names to them. By the question it's unclear which device you're even using, but certain vendor-specific implementations may even fail to read the names, altogether.
Bluetooth devices can advertise using their MAC address and name but the latter is not required, thus you get devices with no names. I would assume these Bluetooth devices are not meant to be connected to by just anyone and they only advertise out of necessity.
I have personally experienced this with my own Bluetooth discovery app. I would say it's fairly normal.
These bluetooth devices are being produced by old cell phones or old application on your cell phone or a smart watch or a lamb
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To be a bit more specific to my case, I'm new to Android development, and I want an Android phone to properly test apps on. This phone would only be used for development, since I already have an iPhone for general use.
It only needs to be powerful enough to test small apps and 2D/3D games (I will likely upgrade in the future). My computer is pretty good, so I don't need to worry about my computer specs.
I'm not asking "which phone should I get", I already have one specific phone I want to buy, since it's on sale. I'm just unsure if it will be powerful enough. For reference, this is the phone I'm looking at: https://www.thinkofus.com.au/zte-shout-blade-a110-4g-unlocked-900-2100-3g-white
Any answers are appreciated.
Lots of people will downvote this answer but still, I will tell you that the device depends on the type of app you are building and the features you want in the app. If you are building a selfie camera app, the device needs to have a front-facing camera or if your app uses NFC the device needs NFC support. From the software point, you need to look at the Android version to see if the feature you want to develop is supported in your device. Low end device will be helpful in making a better app as you would have to worry about memory and CPU constraints, But I would suggest getting 2-3 devices of various types
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Closed 4 years ago.
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This morning I came back to my computer with this alert, see the image (the lower window is the properties of one of the entries above):
How do I investigate this? Can i use the hash presented to see if it is a false positive? Has anyone else encountered this?
Worth noting could be that I havn't changed anything about the android frameworks recently.
Google AdMobs is flagged as a security risk by Symantec because:
This advertisement library may perform the following actions:
Display advertisements in the host application
Send device location (such as
GPS coordinates, cell tower location) to a remote location
For some reason Google Play Services was installed on my machine even though Android Studio SDK Manager did not list it as installed:
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Closed 9 years ago.
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My friend has a phone with Android 4.2.1 and it has "Preferred Installation Location" option under Settings->Storage which allows to set default installation location for applications as SD Card and in another friends phone with Android 4.2.2 is missing that!! What is the scene there?? has any body come across this?
Internal and external storage share a partition on many Android 3.0+ devices, meaning that installing the app to external storage is no longer necessary.
Moreover, I do not recall a global "Preferred Installation Location" option being available in any version of stock Android. My guess is that this option is unique to certain devices, or perhaps certain ROM mods.