General :: How To Access Android File System

Sep 25, 2013

My objective is to create a text file in an android file system.

Using java language, I am creating an app. It has a screen with a table of 3columns. Each time a user enters the table row and click on Submit button, the row entry should be created as a separate comma-separated file on an android device. So each time when the table gets updated with new entry and clicks a submit button, a new file is getting created on the device file system. So I am looking for the file connectivity to the internal device memory where I could open the files and access it.

I have done the same in Nokia mobiles using J2ME. But for Android, I am not able to find the device file path.

General :: How to access android file system


HTC EVO 4G : How Can I Access SD Card / File System?

Jul 2, 2010

Ok just got my EVO yesterday. This is not only my first android phone, but my first smart phone as well. I'm fairly savvy when it comes to computers and techy stuff, but I do have what sounds like a ridiculous question. I bluetoothed some files (songs and pictures) from my old phone to my EVO. It acknowledged getting them and indeed I was able to play them from the notification area after receiving them. However, now I cannot find anyplace to 'browse' the phone folders or the SD card folders so I can find and utilize these files. How do you access the SD card or the file system?

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Android :: File System Access Triggers - Listener On Android Devices

Feb 19, 2010

I'm looking for some ways to intercept File System Access operations like Read and Write a file. So that i can catch these "events" from an Android App. (background service for ex.). I don't have found any possible "events" and "listener" that i can use to listen to file system access on the device. So, i'm thinking about developping a native application (with the Android NDK) which will intercept these file system "events" and send them to a background service.

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General :: How To Access System Files Of Android From Windows

Jul 21, 2013

I'm wondering is there a way to access system files of Android (JB version) and make changes from Windows? Is it possible do that in fastboot mode, without switching on?

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General :: No Internet Access / File Manager - Install APK File From Terminal Emulator?

Oct 8, 2012

Let's say you don't have internet access at the moment. Let's say all you have is fresh install of CyanogenMod 9, which for some reason, does not come with a File Manager :

Let's say you have an apk file on your SD card. How would you install the apk file? Terminal emulator, using which commands or another way?

By the way, ASTRO File Manager vs. ES File Explorer, which one and why?

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Samsung Galaxy S : Recovery Boot Error - Can Not Access To /system/csc/VOD/system

Sep 4, 2010

Phone: UK Galaxy S Issue: Recovery boot error message in red writing

Multicsc : can not access to / system/csc/VOD/system/

Background: I have been trying to root my phone from information found in a youtube video. All went well and the little ninja bloke with the sniper rifle was in the app list. Tried installing busybox and was told that the phone was not rooted´┐Ż..

I think I ran the root application again and at some point I started getting this error message when in recovery. I have since run the one click root method to unroot the phone and the little nija dude is no longer there. Since I rooted the phone it will no longer connect to my wireless network, it finds the network and attempts to obtain an ip address. After a few min it times out and tries again. When I load the phone recovery the error message is still present.

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General :: How To Access /system Folder When Phone Is Off

Apr 11, 2013

my phone got into restarting loop and i know that is bcs i messed up with build.prop file.I can acces recover but cant manage to turn on the phone.My question is,is there any way to access /system without booting up phone?I saw "mount /system" option in recovery but it doesnt really do anything for me.I can also access flash and fastboot mode,so there must be a way to access /system?

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General :: How To Restore Android System File

Apr 17, 2012

I had format my phone's system through cwm.

now i want to restore it but it just stuck when i power on my phone.

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General :: Why Can't Alter SU Binary To Have System Access Only Instead Of Root

Apr 30, 2014

Imagine a scenario where you have just system access on android , and you want to continually have it, so you use the su binary, with the correct permission and the setuid flag on, and the owner being system, you do:

Code:
chown 1000:1000 su2
chown 06755 su2

you have the ability to change the owner to system as you do when rooting, and you also set the appropriate permission as you do when rooting,

06775 being the permission code to all have execution permission, and the setuid flag on.

But when dealing with system permission that doesn't work. it only works with root.

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General :: HTC Desire Z - Can't Access System Partition And Formatting Not Possible

Apr 3, 2014

HTC Desire Z (Vision). I S-OFFed how it's described on CM wiki. Latest radio. About month ago I installed CM 10.1 AlterNdromadus. It worked until yesterday, when it unfortunately installed some system update.

After that phone didn't booted anymore. In recovery it says, that it can't access system partition and formatting is not possible.

I tried connect the phone via fastboot in bootloader, but it also doesn't work. Under windows I have it as unknown device and when I tried manually install drivers from google, it says that they are not compatible with the HW (under ROM it worked before).

I tried also install stock RUU rom (extracted the zip and deleted H-BOOT, radio and recovery) from SD-card (PC10IMG.zip). But it also got frozen on system update.

Here you can see error from 4EXT recovery and CRC images from bootloader.

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General :: Temp Directories In Android File System

Apr 4, 2012

Are there any temp, volatile directories in the Android file system that get wiped once the device is off? In Linux we have /tmp, but this doesn't seem to exist in Android.

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General :: Restore Android Deleted System File?

Jun 11, 2012

2 days ago I tried to update my aunts sensation xl and told her that it is better to update its ROM from 2.3.5 to 4.0.3. So i created a google account in phone and added it in order to sync contacts....and after 2 hours, I thought that it has been synced...After upgrading device to ICS, and adding the previous account that i made before upgrading, I was waiting for contacts to restore, but nothing happend.. I opened the gmail account on PC and saw that there was no contacts. So the only way for me to restore the contacts is to find a way to restore them from Phone device. So,is there any software, either on phone or PC, to restore contacts from phone? or is there a way to have access to root folders and files of phone on PC to use a recovery program to restore "Contacts.db" file that was erased while flashing ICS?

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General :: Why Android Ignores /system/etc/hosts File

Jun 19, 2011

i edited /system/etc/hosts file but it looks that my edit is ignored by Android.

In "hosts" file i added line with text "1.1.1.1 customdomain" And then i used "ping customdomain" command in Terminal Emulator but i got error "unknown host am".

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General :: Why Android Not Support NTFS File System

May 14, 2012

why android not support NTFS file system. I think NTFS more speeder than FAT and FAT 32 and other file systems. So is it technical or patent issue? I think NTFS file system developed by Microsoft

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General :: Android Won't Boot After Modifying System File

Sep 28, 2013

I have a HUAWEI Y300-0100, and it comes with a funny feature: every time it can't connect to WIFI a popup message appears saying that if you switch to data plan charges may apply.

I am constantly switching between WIFI/no-WIFI zones so that message really bothered me, and I searched a way to disable it.

Presumably, the only way to do that is by modifying a system file called "build.prop". I already had my phone rooted so doing so wasn't very hard.I used Jota+ to change a setting from "true" to "false" (ro.config.hw******), and saved the file in the root of the SD card. Then, with ES File Explorer, I renamed the "build.prop" in /system to "build.prop.bak" and copied there the "build.prop" I previously saved in the SD root.All seemed to be fine, except that after rebooting my phone it could not get past the HUAWEI logo.

Android recovery mode seems to work, but I don't know how to use a lot of its options nor I want to do a Factory Reset if there's a better alternative.Is there a way to modify system files before booting Android? I really would like to try to delete the "build.prop" file and rename the "build.prop.bak" back to "build.prop".

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General :: Can Mount Android File System Image?

Dec 10, 2013

So after a failed attempt to upgrade from CyanogenMod 10.1.3 to 10.2, I was unable to access /data or /sdcard because both systems were encrypted. I ended up having to factory reset my phone because it refused to co-operate or let me access my files. However, before I did that, I was able to run

Code:
adb shell "dd if=/dev/block/mmcblk0p2" > data.img
and

Code:
adb shell "dd if=/dev/block/mmcblk0p3" > sdcard.img

Which appears to have copied the raw partition images from the phone (at least, they're the right sizes).

According to my reading, Android (and, I'm inferring, CyanogenMod) encrypts filesystems using dm-crypt, with a AES-CBC ESSIV:SHA256 cipher, with the key being derived from the password using PBKDF2. Knowing the precious little I do about encrypted file systems, my guess is that if I configure the image in cryptsetup to create a drive mapping, I can mount the mapped drive and recover the data from the images.

According to /fstab.herring on my ahem, fresh, install of Android, the /data partition is in ext4 format whereas the /sdcard partition is vFAT. So, once I've gotten through the encryption on the partition images, they should mount normally, right?

I know that dm-crypt accepts plain, LUKS, LoopAES and TrueCrypt device formats. I'm inferring from the PBKDF2 extension that Android goes the LUKS route for encrypting. Is this conclusion correct?

Whether it's possible to decrypt a dumped android image? I'm really hoping that the cypher information is stored on the file system and not on some key file that I nuked in the factory reset. If it can, in theory, be decrypted, am I using the right tools to approach the matter? If so, I'll continue fiddling with cryptsetup and mount, but no sense in wasting time if it's an impossible task.

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General :: How To Gain Root Access If Busybox And System App Is Already Installed

Oct 11, 2013

I have a Rockchip RK3188 Tablet with Android 4.2.2, which I need to root ON DEVICE. Actually, the device was already rooted (using a Laptop via the adb bridge), so I already have busybox installed and I have one of my own apps in /system/app. However I managed to delete the su program (yeah great!) and therefore don't have root access any more. I know I can easily root the device again if I connect it to my laptop again, but that is not possible, because the device is at my parent's place and I can't go over there any time soon.

Therefore I want to root the device just with an app. Actually I would only need to copy su to /system/xbin. These are the things I already tried (without success):Framaroot (doesn't work, because framaroot does not support Rockchip tablets)

Writing my own app, which contains su in the assets and using this su for temporary root

Using adb (on the device) for a local connection (adb connect localhost), because if I connect from my PC I automatically have root (doesn't work because Android 4.2.2 has increased security on adb)

Start telnetd via busybox and then execute my commands via nc (doesn't work, because I can't start telnetd in a way that it ends up with a root shell)

My last idea is, that I could maybe gain temporary root access with the app I already have in /system/app. Basically this would be similar to the Master Key Exploit, except that I do not have to fiddle around with the apk and instead install it normally. However I don't know how to continue from that point. I know, I have special permissions if I have an app in /system/app, but which permissions are that? And how can I use those permissions to make /system writeable (and copy my su file there)?

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General :: Deleted System File On Android And Phone Doesn't Turn On

Aug 20, 2013

I deleted (accidentally) some system files, and then nothing happened, but i hit the restore or backup from setting and it went fine untill the loading screen, i mean it shut down then the first loading image fine and the next one doesn't load my system.. What can i do? (I think i know what software i shouldn't have deleted).

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General :: Android SDK Installed From Multiple Sources - System Cannot Find File Specified

May 18, 2012

I've searched to no prevail. id like to start developing apps but am having issues getting the environment set up. I have the jdk properly installed.

issue 1 (main major ):

I've installed the android sdk from multiple sources, but when i try to start sdk tools, the command prompt flashes/ opens briefly and i get this message:

"Failed to execute toolsandroid.bat: The system cannot find the file specified."

Do i need to change a PATH variable or something...

I cannot get eclipse to run. when i try to open the exe file ( because there is no short cut icon...?) it gives a message about not finding a companion library... ive try to change the properties in the file that is supposed to fix it, but it was already set the way its supposed to be. this is not major as i can use a different IDE.

so im completely lost as to th sdk tool. I just tried adding the file path to the android sdk ( PATH variable) and it still did not work... I also just tried start the android,bat file and the cmd promt flashes briefly saying somthing about xcopy is not an operable command...etc couldn't read all of it... I am on windows 7 home premium

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General :: Impossible To Root Android Tablet - Read Only File System?

Dec 24, 2013

I have a android tablet and I have tried rooting it and I get things like "read only file system" and I looked into it and my /system is read only.. Rooting is putting .su in the xbin or bin inside of the /system. But my /system is read only so i can't root my tablet?

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General :: Log File Of System Activity

Nov 17, 2013

Is there some sort of log file that will show phone activity? I don't have a password lock on my phone and don't need one, but I suspect someone is using my phone while I'm sleeping. Is there a log that might show events such as someone unlocking the screen and viewing my calls or other applications?

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General :: Tab Using UBIFS As File System?

Nov 27, 2012

I recently got to know, that my tab is using UBIFS as file system...what are the advantages compared to the normal ext2-ext4?

I thought about migrating to the ext filesystems, but if UBIFS is better, I'd stay on UBIFS...

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General :: How To Install System File On SE LWW For ICS

Sep 7, 2012

my problem is that when i turned on the power button of my se LWW. it's stuck at screen displaying "Free Experia Project".it happened due to i accidently format the system file...all those things needed to startup the phone is missing.what shud i do to fix my phone back so that i can start it like normal?

*I can only go to recovery when press+hold volume rocker button when it's starting up till that "Free Experia Project".

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General :: Delete File System

Dec 2, 2013

i have a thl w100 and i delete a folder on system, starting hence never got boot.works only via fastboot ou recovery. i can just copy the folder ? how ?

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General :: System File Read Only?

May 31, 2013

I am trying to revive white Pandigital using ADB commands to push files on the system's folder of the device then flashing them.

The computer sees the device, adb has root access, yet when trying to push files is gives me an error indication that the system/data/midc is a read only. tried adb remount over and over with no lick. Is there any other way to get to write on the system folder?

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General :: Repackage And Run Emulator File System

Mar 10, 2013

I have 1 rom, I pulled the file system, for example: system.rfs or system.img.ext4 or factoryfs.rfs. I added, customize the apk and want to put it back and want to be first to run the emulator software to check for errors before running Core issues, problems I faced.

1. how to repackage the system files that (system.rfs, system.img.ext4, factoryfs.rfs, system.img)
2. Using software to run the emulator

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General :: Deleted System File On Impression 10

Nov 5, 2012

OK the system folder was deleted on the Impression 10. It boots but gets hung on the "Impression" logo. I hook it up to the computer, the computer recognzes it but I cannot access the files on both the SD Card nor the internal memory. Android Commander and ADB cannot access it. I have the stock system image file from leader, I also backed-up my system folder. how I can push the files from the computer to the tablet or is it too far gone?

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General :: Deleted System File From Tablet?

Mar 15, 2014

Well, I accidentally deleted bootanimation.zip from my android tablet and now when I turn it on, it reboots once and then the android system recovery appears.

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General :: Rooting - Read Only File System

Nov 27, 2011

I get as far as being able to push su and busy box but get "failed, read file system only" or "directory doesn't exist".

model PMID700
Android version 2.3.1
kernel version 2.6.32.27
build number 20110918.170336
Firmware version 2.2

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General :: App To Access Windows File Share On Android?

Dec 26, 2011

I'd like an app that lets you access a windows file share, and lets you stream music from that location. Is there a way to do this on Android?

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