A doubt regarding cache - General Questions and Answers

I basically use my android file manager ... Recently i found out one thing... If i capture few photos from camera app or download few photos from websites and view them from my file manager ... The File manager cache storage increases...
I can understand that it creates temporary files to make the photos load faster the next time (around 10mb) but my doubt is
I deleted all my camera photos and cleared the recycle bin in my file manager ... But still the file manager cache storage is 10 mb... It is still in the cache space...
I know the deleted images will be taken out from normal file list but still it will be there hidden
Until rewritten by some other thing ..
But my questions are
So does the deleted images stored as cache in the file manager ????
Or is it just useless after the original image is deleted??
Without using recovery softwares, will the original image be recovered with this file manager cache??
Kindly give an answer with detailed explanation

Each app, so also the File Manager app you use, has its own cache where the app is storing files to reference later. If the File Manager app currently doesn't have a setting for how much disk space the cache is allowed to take up, so it just keeps getting larger and larger until the entire drive is full.
Whatever data the File Manager app stores in its cache, they aren't accessible by any recovery softwares, AFAIK.

Related

Restored nandroid, what's with the sdcard?

Hey guys,
a nandroid backup is a really convenient method to backup your complete phone and restore everything or partially data. All partitions (/system, /data, /cache) were being backed up.
But what happens with the sdcard?
Before I flash/install a new rom, I always format my sdcard with my PC, hence I make sure, that it’s clean and has no remains from older roms.
On first boot, the android system creates a lot of folders contaning data, which both are modified during the daily use. For example the folder “DCIM” contains all the taken pictures and videos.
But what’s about these?
- .android_secure
- .dta
- .estrong
- and especially “Android” and subfolders
What happens, if I make a full nandroid of my phone, format my sdcard, so that all the folders and data, which were created while using the rom, were deleted. After that I restore the complete backup and boot up the phone.
My question is, how the restored system will react, if it notices, that these folders and their contents were not available?
- will they be recreated?
- does the system not boot
- after booting it will show some error messages?
- something else?
Thanks in advance!
@@RON
Hi
Greeting
Nandroid only backups phone memory
It does not backup sdcard
And their is no need to format sd card everytime before flashing Rom (i haven't formated my sd card even once ) every thing works f9
Even if u remove all the file from sdcard which u mentaion then the phone recreate these file againg and causes no problem
Basically a Rom has to do nothing with the sdcard the phone runs completely even without sdcard . Sd card is just an expansion of memory to phones
And you do whatever with it , it does not affect the way your Rom runs
Sent from my HTC Sensation XE with Beats Audio Z715e using xda premium
@@RON said:
Hey guys,
a nandroid backup is a really convenient method to backup your complete phone and restore everything or partially data. All partitions (/system, /data, /cache) were being backed up.
But what happens with the sdcard?
Before I flash/install a new rom, I always format my sdcard with my PC, hence I make sure, that it’s clean and has no remains from older roms.
On first boot, the android system creates a lot of folders contaning data, which both are modified during the daily use. For example the folder “DCIM” contains all the taken pictures and videos.
But what’s about these?
- .android_secure
- .dta
- .estrong
- and especially “Android” and subfolders
What happens, if I make a full nandroid of my phone, format my sdcard, so that all the folders and data, which were created while using the rom, were deleted. After that I restore the complete backup and boot up the phone.
My question is, how the restored system will react, if it notices, that these folders and their contents were not available?
- will they be recreated?
- does the system not boot
- after booting it will show some error messages?
- something else?
Thanks in advance!
@@RON
Click to expand...
Click to collapse
When making a nandroid backup, system, data, boot and cache partitions are saved. Also, the android_secure from the SDcard is saved. As for the other folders, they are not kept. EStrongs is the guys who make ES File Explorer, and I believe this folder has something to do with the app. I don't know about the other folders, but they are not required for running the ROM. If they are missing, they will be recreated.
I believe I answered some of your questions above, but I'll answer the rest here:
-As I said, the restore won't create the folders, but the ROM might create them. At least one of the folders you listed is of an app, and there are many more apps that create folders on your SDCard, that's just cache or some data, which is not a problem to restore.
-The system will boot. That's the idea of a nandroid backup (if those folders were required, they would have been backed up)
-It will not show error messages, it will resume just like when you made the backuo.
-Something Else? You name it. There is no need to format your SDCard every time you flash a ROM, as usually it doesn't create problems. It can get a bit messy, but besides that, it's fine to keep it the way it is.
astar26 said:
When making a nandroid backup, system, data, boot and cache partitions are saved. Also, the android_secure from the SDcard is saved. As for the other folders, they are not kept. EStrongs is the guys who make ES File Explorer, and I believe this folder has something to do with the app. I don't know about the other folders, but they are not required for running the ROM. If they are missing, they will be recreated.
I believe I answered some of your questions above, but I'll answer the rest here:
-As I said, the restore won't create the folders, but the ROM might create them. At least one of the folders you listed is of an app, and there are many more apps that create folders on your SDCard, that's just cache or some data, which is not a problem to restore.
-The system will boot. That's the idea of a nandroid backup (if those folders were required, they would have been backed up)
-It will not show error messages, it will resume just like when you made the backuo.
-Something Else? You name it. There is no need to format your SDCard every time you flash a ROM, as usually it doesn't create problems. It can get a bit messy, but besides that, it's fine to keep it the way it is.
Click to expand...
Click to collapse
Yeah, you're right!
I clicked through the folders on my sdcard and the most directories are named "cache" etc. Only some exceptions for e.g. whatsapp message database or downloaded maps for htc locations ...etc.
So it seems, that the android system and the installed apps create folders for their use. If a nandroid will be created, the last mentioned folder should be backed up, too ... but manually. Thus the first mentioned folders (.data ...) are unnecessary.
You said, that there is no need to format the sdcard everytime a new rom will be flashed. I think it is, because every new rom deserves a clean sdcard, which has no remains from older roms. So the rom can expand themself and have a great feeling
No joke, in my opinion it will be the better way, if there are no possible complications with older existing files.
@@RON said:
Yeah, you're right!
I clicked through the folders on my sdcard and the most directories are named "cache" etc. Only some exceptions for e.g. whatsapp message database or downloaded maps for htc locations ...etc.
So it seems, that the android system and the installed apps create folders for their use. If a nandroid will be created, the last mentioned folder should be backed up, too ... but manually. Thus the first mentioned folders (.data ...) are unnecessary.
You said, that there is no need to format the sdcard everytime a new rom will be flashed. I think it is, because every new rom deserves a clean sdcard, which has no remains from older roms. So the rom can expand themself and have a great feeling
No joke, in my opinion it will be the better way, if there are no possible complications with older existing files.
Click to expand...
Click to collapse
What needs to be cleaned is cleaned when you wipe the phone. Anyway, formatting the SDCard is your choice. Files of apps that are not installed just won't be used. I like your idea of starting fresh, but it's quite a hassle to format and rearrange the SD every time I flash a ROM.
It's nice to have it clean without many directories (Imust say that I managed to reach such a situation with my own documents, with directories I created myself and have no idea what they are for. But I guess that's what you get when you don't clean your "room" for a couple of years.

[q] Help Can't clear recents in documentsui.apk

No matter what ROM I run on my GS3 when I go to the built in DOCUMENTS app (documentsui.apk) and click on recents files It will shows files that I no longer have on my phone..
The issue is when I try to clear them off or delete them.. it say's cannot delete files. They seem to be files i've downloaded on my computer... but I have wiped my download history on chrome on all my devices.
I have tried ccleaner, clearing the downloads and documents app from manage apps, clear out all data on my google account (I tried this because these recent files persists across all of my android devices.) completely wiped my phone and sd card.

Problem with Samsung My Files App

It's a strange problem. Whenever I delete a large file from Samsung My Files (File Manager), the file gets deleted on the app. But the file still remains hidden somewhere in the system and occupying the space. No, it's not in Recycle Bin. I clear that too. I tried to dig in and find it. I couldn't.
Then I tried to clear the app data of My Files. The data reflects the file size of the file I deleted (2.7GB). After clearing the data (3MB), the data size reverts to the same size (2.7GB) within a second. It seems the deleted file is refusing to go from my system and hiding somewhere
Can someone help me with this issue? I am running out of memory space on my S8. I have root.
Thanks in advance

How To recover my photos from my rooted android

Hi i recently made a backup with wondershare mobile trans and it created a .BAK file of 30gb and it is corrupted i don't know why, I can't read videos and photos (if you know any way to access the data in it even if it is corrupted please tell me), i tried extracting it with winrar but it only extracts 6gb of some photos , the rest is corrupted it can't finish extraction.
I flashed a new rom and orange fox recovery , i have root access , i installed disk digger with full root access but it can't find any photo (not a single one) in my internal storage , is there any way to recover my photos from internal storage ?
I flashed my phone before knowing The backup file .BAK was corrupted
If you flash a ROM then Android's internal storage memory - who is surprised ? - gets completely overwritten, means previously stored data have been lost.
jwoegerbauer said:
If you flash a ROM then Android's internal storage memory - who is surprised ? - gets completely overwritten, means previously stored data have been lost.
Click to expand...
Click to collapse
I formatted internal storage before flashing the new rom
Steps to recover your deleted data from your rooted Android device-
1. Connect Your Android device.
2. Launch Android Data Recovery software on computer and choose 'Data Recovery'
3. Choose file types to Scan
4. Preview and restore lost data from Android phone.
Stop using your phone to prevent new files from overwriting lost data. Then try to use data recovery software to detect the photos from internal storage. If it can be detected, recovery is simple.
jwoegerbauer said:
If you flash a ROM then Android's internal storage memory - who is surprised ? - gets completely overwritten, means previously stored data have been lost.
Click to expand...
Click to collapse
I tend to think it's a lost cause especially if the drive is zeroed out when you flashed.
Don't know but...
This wouldn't surprise me as it's a wise precaution to ensure a clean flash/load.
Even if not overwritten the file structure is lost as that was certainly overwritten when you flashed it. All you will find at best is completely random disjointed files.
The images will have no metadata ie time stamp etc. If you have hundreds, thousands of random images just forgetting about them becomes the less frustrating option many times. There's no way to index them except by memory, one at a time.
Been there, done that

recover lost photo with root access

hello,
I have a xiaomi redmi 9 pro phone.
rooted.
I used fstop app to move 80 photo from internal memory to sdcard. sdcard was full and the move has been done and create 0kb file in sdcard.
Photo from inernal memory have been deleted by the app.
I used a lot of app to look for my lost photo but I don't find stuff. I found a lot of "not deleted photo". I don't find any usefull tool that could ignore not deleted files (whatapp and my personnal photo are quite huge, more than 4000 photos).
also I'm surprised not to find a lot of thumbnail because there should be a lot of thumbnail on my phone and also a lot of deleted thumbnail.
I have the date and name of deleted photo isn't there a clever tool that exist and could find them ?
using tool like diskdigger or undeleter that need root access, I don't find stuff, even when looking in a lot of volume. What I'm missing ?
My dream tool :
look for really deleted file
if there are real file : filter by folder, by filename, date, etc.
do you have some tips for me ?
If you have rooted your phone and used several Android recovery tools, but none of them have scanned your lost photos. It is possible that they have been overwritten by new files. The overwritten files cannot be recovered.
That's what happens when you MOVE a file from one drive ( internal sdcard ) to another drive ( external sdcard ):
The file contents are copied in full to some location on the target disk drive.
The directory of the target folder on the target drive is updated to include the new file copied.
The directory of the source folder where the file used to reside is updated to no longer list the file. This causes the actual data for that file on the source drive to be released and marked as unused space.

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