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Closed 9 years ago.
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I have seen this a lot but always wanted to know how Factory Data reset works on an android device? What its the internal mechanism and what are the stuff that it clears ? Is there any specific partition that it clears ?
Any knowledge is greatly appreciated.
Thanks
Factory Data Reset removes user data, third party applications, and returns your phone to the condition it was when shipped from the factory.
When performing a factory reset:
/system is untouched since it's normally read-only anyway
/data is formatted
/cache is formatted
/sdcard is not touched unless you specify. Note that apps on the sdcard will still be erased.
So, to answer your question, the system is not reflash end, but instead the data and cache partitions are formatted.
from here
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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 last year.
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I just got my screen destroyed and can't see anything on the phone, and I need access to the phone quickly.
Since the screen is completely black I can't see anything but I use it for local Android development so adb and all the developer settings are enabled.
Is it possible for me to stream Android screen to my laptop and somehow recover my accounts?
Yes, you can use scrcpy to mirror your screen: https://github.com/Genymobile/scrcpy
In addition to answer of davehenry. You can also use this tool https://www.vysor.io/
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Closed 1 year ago.
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Recently, I've figured out that if I delete files from /sdcard/Download it deletes files from /storage/emulated/0/Download. And if I add the files into /sdcard/Download it duplicates then in /storage/emulated/0/Download.
So what is /storage/emulated/0/? For what purposes do we have it in our android file system?
From what I remember, this confusion arises due to keeping older paths for backwards compatibility. Basically, none of your files are getting duplicated, because both /sdcard/Download and /storage/emulated/0/Download point to the exact same location. The /0/ here is for the multi-user feature introduced in JB, and refers to the main user. If you had one more user, it'd be /1/ for that particular user, and so on.
Well, everything is pretty simple. /sdcard/Download is just a simlink (shortcut) to downloads folder and /storage/emulated/0/Download is actual path to folder.
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Closed 7 years ago.
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On a tablet, is it possible to install Linux on an SD card, and let it boot from it without the need to partition the internal memory and without touching Android?
For a native boot, out of the box, no. Android tablets generally have a locked bootloader and there would likely be driver issues. However, it has been done. For this to be done, however, you need to do quite a bit to the tablet.
I recommend you research which distribution of linux you want running on a tablet, then look for guides (such as on xda-developers.com), then buy the corresponding tablet.
You can emulate linux on your android phone. Take a look at this app:https://play.google.com/store/apps/details?id=com.zpwebsites.linuxonandroid&hl=en
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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.