delete my HDD data permanently - Android Software Development

I want to know if I delete my HDD data permanently then does it goes out fully or keep on somewhere in the drive. I want to put up for sale my hard drive . I had formatted every partition of it, but is it possible to recover data out of it? I want to delete it permanently?Any help regarding this topic is appreciated. Thank you.

Yeah it is very imp to delete all the sensitive data b4 u get rid of ur old system.The simplest way to do this is to format all the drives,but that too may not delete all the data and there are always chances to recover them.I can suggest you 1 tool that will remove all ur data permanently forever and no other tool can also be able to recover it."Advanced System Optimizer",has a tool named Secure Delete that does the permanent deletion of the data,but be cautious once the data removed can not be recovered anyhow.
U can download its free version from cnet

"Darik's Boot and Nuke" does the job, can't post links yet

Data Destruction
google Ultimate Boot CD for Windows

Related

Can some one tell me steps needed to flash a new ROM without losing data?

I am wanting to flash a ROM, but do not want to lose data. I have titanium but don't know how not to lose backup if I have to clear data partition. Can someone that has done this walk though the steps involved? Note I am on Linux as host.
Thanks.
Cp
Just copy the Titanium Backup folder from your phone to your PC, flash as normal, copy it back over to your phone then restore your apps + app data (not system settings).
your phone has a backup agent inbuilt by google. you can trigger it easily via nexus toolkit. it stores a single file on your local harddisk. the transfer is made by your phone, googles app goes up and lets you backup & restore.
Does formating /data directory erase what it is /sdcard ?
Nope it doesn't
Sent from my GT-I9100

OP2 Internal Memory Formated... Need a recovery Option

Hello,
I was freeing up some space on my OP2 device as it was about 52GB Full of 54GB,
i deleted all not used and temp folders, i also found folder named sdcard and storage in same.
I opened them and both were empty, i deleted them as well and as i did that i got a error that it can not be deleted.
Then i just found that whole data on my cell is deleted, all the files and folders are wiped and those two as well.
Now i am asking that is their any way to recover my data, i.e all images, videos, pdf &docx files etc..
As this device can not be connected as a mass storage so that i can use any software on my pc to do so.
i have tried Disk Digger Pro version as well, but unfortunately no success.
Please guys please help me out to come out of this issue. All suggestions and solutions are welcome.
You can also share any paid add as i can buy it to recover my data, but i really need a helping solution.
Thanks in advance.
shubhamalive said:
Hello,
I was freeing up some space on my OP2 device as it was about 52GB Full of 54GB,
i deleted all not used and temp folders, i also found folder named sdcard and storage in same.
I opened them and both were empty, i deleted them as well and as i did that i got a error that it can not be deleted.
Then i just found that whole data on my cell is deleted, all the files and folders are wiped and those two as well.
Now i am asking that is their any way to recover my data, i.e all images, videos, pdf &docx files etc..
As this device can not be connected as a mass storage so that i can use any software on my pc to do so.
i have tried Disk Digger Pro version as well, but unfortunately no success.
Please guys please help me out to come out of this issue. All suggestions and solutions are welcome.
You can also share any paid add as i can buy it to recover my data, but i really need a helping solution.
Thanks in advance.
Click to expand...
Click to collapse
It's normal that all your documents, photos, messages, ets, have been deleted, as /sdcard is...your sdcard. And, well, no, I don't think there is any recovery options...
As long as your internal "sdcard" storage is not encrypted you should be able to just factory restore the phone back to full functionality. After that you should be able to connect phone as usb storage device to your PC and use standard undelete software to undelete your files, because factory restore doesn't actually format your internal storage, it only deletes the file index (FAT).
pitrus- said:
As long as your internal "sdcard" storage is not encrypted you should be able to just factory restore the phone back to full functionality. After that you should be able to connect phone as usb storage device to your PC and use standard undelete software to undelete your files, because factory restore doesn't actually format your internal storage, it only deletes the file index (FAT).
Click to expand...
Click to collapse
yes, but if he used the wipe function in TWRP, which use mkfs.ext4 (if I remember), do you think there is still a possibility for him to recover his data?
I'm not sure about it. But then again, I'd say that and testdisk/photorec is his last chance of restoring at least photos.
If this doesn't work, I'm afraid anything will work at all..
http://forum.xda-developers.com/galaxy-nexus/general/guide-internal-memory-data-recovery-yes-t1994705
Sorry i guess no luck unless you see a recovery partition

Data Recovery from S4 GT-I9506 Andriod 4.3

I need help to recover data (photo, contacts, WhatsApp chats) from my Un-Rooted GT-I9506 running Android 4.3. Due to some error the data was not synced for about 6 months.
Any help as the steps that I need to follow is greatly appreciated
The what's app chats should re-appear if you reinstall what's app and sign in on another phone.
So the phone won't boot at all into the rom? If not, you could install twrp using Odin, boot into twrp, mount the data partition, and copy the data to your computer. Before any of this will work, you need to make sure that the phone is seen by your windows computer.
audit13 said:
The what's app chats should re-appear if you reinstall what's app and sign in on another phone.
So the phone won't boot at all into the rom? If not, you could install twrp using Odin, boot into twrp, mount the data partition, and copy the data to your computer. Before any of this will work, you need to make sure that the phone is seen by your windows computer.
Click to expand...
Click to collapse
Thank you audit13 for your help.
My GT-I9506 is working perfectly fine so I should be able to install TWRP.
However I made a mistake and loaded the TWRP ment S4-I337M. I got the usual Green OK message in ODIN. However when I pressed Volume Up & Power I was getting the usual Samsung Default Recovery Options.
Then I realized my mistake and loaded TWRP_3.0.2.0_ks01lte_20160508.tar.md5
http://forum.xda-developers.com/gal...recovery-twrp-2-8-1-0-touch-recovery-t2942159
I got thw Green Successful Message in ODIN. But when I press Volume Down & Power I get the following message:
Recover Booting
Wet Warranty Bit: Recovery.
And the Samsung Galaxy S4 GT-I9506 in the Black Screen logo
The phone is stuck in the above screen
Phone is working fine (I am able to use the phone and to go to Download Mode).
What should I do?
Re-flash TWRP. I recommend re-flashing TWRP. I like and still use 2.87.
https://twrp.me/devices/samsunggalaxys4ltea.html
Open Odin, uncheck auto reboot, flash TWRP and, when you see the word "reset" in the status window, remove USB cable, remove battery, replace battery, use button combination to boot into TWRP.
audit13 said:
Re-flash TWRP. I recommend re-flashing TWRP. I like and still use 2.87.
https://twrp.me/devices/samsunggalaxys4ltea.html
Open Odin, uncheck auto reboot, flash TWRP and, when you see the word "reset" in the status window, remove USB cable, remove battery, replace battery, use button combination to boot into TWRP.
Click to expand...
Click to collapse
Re-flashing with 2.87 worked. TWRP is working, Thank you very much.
When you have time can you please point me to link that have step by step instructions to recover the data?
Boot into twrp, connect phone to computer, open file explorer and look for your data. If you don't see anything in the data partition, you may have to try using a data recovery program. Try a program like recuva.
audit13 said:
Boot into twrp, connect phone to computer, open file explorer and look for your data. If you don't see anything in the data partition, you may have to try using a data recovery program. Try a program like recuva.
Click to expand...
Click to collapse
Thank you so much for your help. The files were deleted so I could not find them. I have downloaded Recuva.
What is the Optimal way to recover All deleted files using Recuva?
I did a search and this what I found and I not sure how to do it:
back up the entire internal memory partition to your computer as a single, massive .RAW file,
convert the .RAW file output to a VHD,
mount the VHD as a disk in Disk Manager,
scan the attached VHD volume for files that have been deleted and recover them,
Sorry, I have never use recuva on a phone or non-volatile memory. only mechanical drives.
audit13 said:
Sorry, I have never use recuva on a phone or non-volatile memory. only mechanical drives.
Click to expand...
Click to collapse
When I boot GT-9506 into TWRP and mount the internal storage as USB my PC is not detecting the phone internal storage. Even Recuva or HDD Raw Copy Tool is not detecting the phone internal storage.
Any suggestions?
Does TWRP's file manager see any of your data files?
How was the data lost?
- Did you delete it manually?
- Did your format the device?
If so, then it's IMPOSSIBLE to get your data back. That's because Google enabled TRIM in Android 4.3+, so data you deleted is really gone.
If you are stubborn like most of the users and still want to waste lot's of time trying to recover the data then this is the thread you are searching for.
http://forum.xda-developers.com/gal...de-internal-memory-data-recovery-yes-t1994705
TWRP File Manager seems to show all folders example: boot, cache, data, dev, ect, external_sd, license, preload, proc, recovery, res, root, sbin, sdcard, sideload, spersu, system, tem, twres, usbstorage, charger, default.prop .......
When I go into the data folder I see a lot of sub folders including app folder, app-asec, app-lib, app-private, audio, backup, mcmnfc .......
What I go into app folder I see some app files such as "com.whatsapp-34.apk, com.viber.voip6.apk
I am mainly trying to recover deleted Whatsapp & Viber chat, calls history
Lennyz1988 said:
How was the data lost?
- Did you delete it manually?
- Did your format the device?
If so, then it's IMPOSSIBLE to get your data back. That's because Google enabled TRIM in Android 4.3+, so data you deleted is really gone.
If you are stubborn like most of the users and still want to waste lot's of time trying to recover the data then this is the thread you are searching for.
http://forum.xda-developers.com/gal...de-internal-memory-data-recovery-yes-t1994705
Click to expand...
Click to collapse
The data was deleted manually but it was not formatted nor a factory reset done.
Yes I did see that 100 page long thread. But as mentioned in this tread my internal storage is NOT detected by Recuva or raw HDD copy utility.
I need the deleted data very badly. So I am willing to jump through any loops
utsc said:
The data was deleted manually but it was not formatted nor a factory reset done.
Yes I did see that 100 page long thread. But as mentioned in this tread my internal storage is NOT detected by Recuva or raw HDD copy utility.
I need the deleted data very badly. So I am willing to jump through any loops
Click to expand...
Click to collapse
If you deleted the data manually then you cannot get it back. There are no loops to jump through.
Android 4.3+ has Trim enabled. The TRIM function effectively nulls out the space where deleted files were stored, making the data completely unrecoverable.
Lennyz1988 said:
If you deleted the data manually then you cannot get it back. There are no loops to jump through.
Android 4.3+ has Trim enabled. The TRIM function effectively nulls out the space where deleted files were stored, making the data completely unrecoverable.
Click to expand...
Click to collapse
I am not too sure about that because I used a software called Dr Fone and was able to recover some of the deleted files.

Partition internal storage ?

hey guys,
might sound pretty stupid to some of you, but is it possible to make partition to the internal storage ?
I mean partitions that remain when i want to format data only on system partition.... and leave other partitions untouched
since the transfer speed is so slow, its a pain in the ass when i need to backup all data and retransfer it back to the phone...
or did i miss something essential that speeds up that process ? :cyclops:
Thanks , have a nice day
Not sure if I understood you correctly, but partitioning is not a good idea not only on this phone but also on any new android phone. You will probably end up with a hard brick.
There are some alternatives though:
1. Use twrp recovery. When you format system or data, then your files will remain intact unless you also want to format whole internal storage.
2. Transfer your files using Wi-Fi via a good file manager such as Solid explorer. For that you will need to share a folder from your computer. Then you can simply transfer the files to your computer into that folder. Much faster transfer speeds (12 megabytes/sec in my case via 5ghz router)

recover data

Hi every one.. i want recover some photos in my samsung S8 SM-G950FD android 9. These photos are not in recycle bin. I tried many softwares but it is asking for root access..my question is can i recover photos after making data wipe to gain root access..
sahood said:
Hi every one.. i want recover some photos in my samsung S8 SM-G950FD android 9. These photos are not in recycle bin. I tried many softwares but it is asking for root access..my question is can i recover photos after making data wipe to gain root access..
Click to expand...
Click to collapse
If it can be done disk digger is the app to use
But as time goes on the chance the files that where marked for deletion have already been overwritten.
But if any can recover this can
Is it possible to recover data after wipe data..? I have have softwares for data recovery but i need information whether it can be possible..
sahood said:
Is it possible to recover data after wipe data..? I have have softwares for data recovery but i need information whether it can be possible..
Click to expand...
Click to collapse
If those dates sectors have been overwritten then no. It all comes down to which sectors have been overwritten
So basically what u r saying is if i wipe data to install twrp i still can recover the data..
sahood said:
So basically what u r saying is if i wipe data to install twrp i still can recover the data..
Click to expand...
Click to collapse
Possible. The data was deleted wasn't actually deleted. But only marked for deletion. So as you as new data it will follow a write scheme normally way it works on android is say a disk it will work from front to back and then start back at the beginning. To minimize write cycles so to prolong ssd type memory the deleted data isn't deleted until the next write cycles come around to those disk sectors. Which user data is in a different location. But every day that goes by you risk losing more and more

Categories

Resources