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4 votes
Accepted

Is it possible to create an operating system other than Android for Android devices?

Something like a secondary bootloader. Is that possible? Yes it's possible. As you mentioned, since the boot chain up to bootloader stage is closed source and binaries are signed with OEM's private ...
Irfan Latif's user avatar
  • 20.7k
3 votes

32-bit and 64-bit Android: how to tell before buying a phone

One way to know that the OS is 64-bit is to check the RAM. 32-bit OSes have (see/utilise) a maximum of 4GB of RAM while 64-bit devices see more. Devices with more than 4GB of RAM will be using 64-bit ...
Reddy Lutonadio's user avatar
3 votes
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Will Android be able to install OS updates without Google account?

OS updates are provided by the device manufacturer. They are retrieved directly by the device and don't require any user account. The only requirement for an OS update is a working Internet ...
Robert's user avatar
  • 20.6k
3 votes

What steps are taken by the OS when an app is uninstalled?

Application updates do not recognise OTA Updates.. I have had several problems lately due to the fact that still use Android 5.0 and updating an application built for Android 8.0 or Android 7.0 will ...
Empire of E's user avatar
  • 1,590
3 votes
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How does android dm-verity protection validate blocks with hash tree

"But how can I verify root hash, when I have not read all the blocks??" "In essence, the leaves of the tree are pages containing hash values; each higher level in the tree contains hashes of the ...
Bo Lawson's user avatar
  • 2,588
3 votes

TWRP API to aceess TWRP from the OS?

It's possible by OpenRecoveryScript Official command guide: https://twrp.me/faq/openrecoveryscript.html Official TWRP App, TWRP Manager and Lineage OS Updater use this approach.
Axifive's user avatar
  • 135
3 votes
Accepted

What is the lowest version of Android that supports split screen apps?

tl;dr. Android 4x The basic Android framework has always allowed what you see on your screen to be drawn at almost any size, and the idea of having more than one view shown at a time was kicked ...
xavier_fakerat's user avatar
3 votes
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System update notification but system already up-to-date

Does Android put out security updates with the same version #? Yes. Version number changes generally correspond with new features or new APIs. Occasionally it will also be incremented for major ...
eldarerathis's user avatar
  • 36.8k
3 votes

What steps are taken by the OS when an app is uninstalled?

Uninstalling an app will remove entry from /data/system/packages.xml, and delete package from: /data/app/ (apk file) /data/data/ (user data and cache) /data/dalvik-cache/arm/ (translated java ...
alecxs's user avatar
  • 4,074
3 votes
Accepted

Wiped System Partition... No OS.. How can I recover it back?

Download the following file (J730GMTCE2AQJ1_TCE) from samfirmware.com: direct link Extract (unzip) the firmware file Download Odin v3.12.7 Open Odin v3.12.7 (make sure to Run as administrator) Reboot ...
Timothy Langer's user avatar
3 votes
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Would the Amazon Fire OS count as Android?

Android is 'open-source' in that Google releases code at every major version level. So long as whomever is doing the OS forking doesn't change APIs AND developers don't use any Google Mobile Services ...
Morrison Chang's user avatar
3 votes
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How can I see which system update Android wants to install?

The update information on Samsung One UI can only be seen from the "Download and install" menu.
Andrew T.'s user avatar
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2 votes
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are the apps being uninstalled during OS update?

If you do a normal system update (no restore or something like that) your apps are not uninstalled. The system doesn't really do anything with your apps at all until it finished the system update. ...
Walter Wolf's user avatar
2 votes

What steps are taken by the OS when an app is uninstalled?

If the app stores most of its data online (in the cloud) through an account, then uninstall/reinstall isn't actually that nuclear. All you'd have to do upon reinstallation is sign in and the app ...
ravilov's user avatar
  • 21
2 votes

where does the official, "non-custom firmware" Android os look for version updates?

The OS looks for updates from the manufacturer's site for a newer version. When you click download on your phone it download the latest update usually as "update.zip".
icannotthinkofaname's user avatar
2 votes
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Can I install Android using Android studio on any supporting devices?

Android Studio is purely for developing Android apps. hence you can only build Android apps, install them on a device or emulator and you can run/debug it. Android Studio has no functionality for ...
Robert's user avatar
  • 20.6k
2 votes
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Where are the download images for Android?

It seems like for Samsung devices the image download servers are available but there is no user interface to select an image for download. According to XDA blog there is a new Python based command-...
Robert's user avatar
  • 20.6k
2 votes

How can we trick an android device that the device does not get our real location?

The phone has a GPS sensor and the OS can read the values from this sensor. Thus, the OS knows your real position. However, the apps have no access to the direct OS reading - they can only ask the OS ...
peterh's user avatar
  • 1,015
2 votes

Apps go portrait and then landscape unexpectedly

Well, I believe the easiest way for you to avoid that would be to disable auto-rotate in your phone. The automatic rotation tool is very sensitive, based on accelerometer, and some users complain that ...
Leonardo Alves Machado's user avatar
2 votes

Can 2 mobile devices detect each other's presence using NFER technology?

When I understand the Wikipedia article on NFER correctly this requires special hardware that is not yet present in Smartphones. Therefore this questions seems theoretical to me (which means that it ...
Robert's user avatar
  • 20.6k
2 votes

Can I disable OEM lock from computer?

For security reasons the only way to change the option "Allow OEM unlock" is from within the running device in the developer settings menu.
Robert's user avatar
  • 20.6k
2 votes

Are Android framework and operating system the same thing?

The Android framework is part of the operating system. The Android operating system has a lot of components. Here's a diagram from the Android developer documentation. The system apps are Android ...
John Dallman's user avatar
  • 1,387
2 votes

Android settings and Microsoft Intune report different security patch levels on Huawei devices

Some suspected that Huawei couldn't get the security patch update on their Android devices certified by Google anymore because of the TGL (Temporary General License) extension timed out in August 2020....
Andrew T.'s user avatar
  • 16.2k
2 votes

How can I update my TV that is running android OS 4.2.1

The possible routes to updating this TV are: If the manufacturer has produced a later version of Android for it, install that. If someone independent has produced a "custom ROM" for it, ...
John Dallman's user avatar
  • 1,387
1 vote

Does Android 8 has journaling enabled in its ext4 files sytem?

Does Android 8 has journaling enabled in its ext4 files system? It depends on a few factors. OEMs can possibly disable journaling e.g. on system partition as it's always supposed to be used R/O. ...
Irfan Latif's user avatar
  • 20.7k
1 vote

32-bit and 64-bit Android: how to tell before buying a phone

Until the manufacturer doesn't describe the technical specifications of OS included with a device, it's hard to say if it's 32-bit or 64-bit. But a device with 64-bit hardware is expected to come with ...
Irfan Latif's user avatar
  • 20.7k
1 vote
Accepted

What position do cellular communcation (1G, 2G, 3G, 4G or other function only implemented in phone) play in Android operating system archtecture?

If it is in kernel layer, it means that there should be an independent kernel repository or patch specific for cell phone other that tab computer, smart television and music player. It would not be a ...
Morrison Chang's user avatar
1 vote
Accepted

How would I go about purposely disabling all microphones on an Android phone?

I can not see a purpose for this but ultimately the easiest method if you never want to use the microphone again is to just break the microphone with a small pin or something, you could disconnect ...
Empire of E's user avatar
  • 1,590
1 vote

Lanix X110 (Mexican made, generic android 4.4.2 OS) Random "ghost" apps appear from nowhere and other issues

Do this. Those are brought to you by some app integrated to system. If you could be kin enough you could realize that even advertisements appear on status bar and or drawn over other normal apps. But ...
Thally Ace's user avatar
1 vote

How can I switch keyboards using gesture navigation only(no navigation bar)? (OnePlus 5t)

Android 9 "improved" this problem, as navigation bar is default hidden. My Bank app has a feature which is a keyboard and helps a lot to make payments during chats in WhatsApp and SMS, but now it's ...
RBCampacci's user avatar

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