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Every once in a while I'm having the same sort of problem whith my storage card, whether it's MiniSD, MicroSD or SDHC. To be more precise some/all files disappear leaving nothing but some bloody FILE*.CHK files, which seem to be completely useless. I did some google-search and there seems to be no practical way of retrieving the lost data.
I'm curious: why is it happening in the first place and has anyone been successful in combatting this issue? (don't tell me about backups )
I have yet to have a problem with the mem card in my Kaiser. it is a 6Gb Sandisk. Do you have an off-brand?
My old HTC Sable had issues like you describe...
arent .chk files left over by scandisk on a windows box?
this could be due to not ejecting the hardware before removing it from the pc!
under what circumstances are you experiencing this
Yes when combatting this issue I find that handguns are useless and shotguns are all the rage. When trying to do the official combat I like to taunt the problem a bit with the pistol (which just makes it mad) and then go all out with the shot gun. It's always good to have someone else at your side with a missle launcher or something, ya know, for the hardcore combat.
.CHK files are recovered file fragments from Scandisk. I would try a low level format of your SD card and then reformat as FAT32 (for the love of ____, do not use NTFS). NTFS is not designed for removable media and will give you nothing but headaches.
How do you low level an SD card. You only really hear about that with SCSI drives now days, Or do you mean a full format?
im not sure that the post that says dont format ur sd card as ntfs is accurate, while it may be true that a windows mobile device will probably not recognise this disc at all, i use an sd card formatted as ntfs in a laptop with no problems!
try hdtune @ www.hdtune.com/ this might be useful!
ChumleyEX said:
How do you low level an SD card. You only really hear about that with SCSI drives now days, Or do you mean a full format?
Click to expand...
Click to collapse
You can use an SD card reader with a PC and use a program such as Boot/Nuke to do a DoD-certified erase of the contents.
andaroo said:
im not sure that the post that says dont format ur sd card as ntfs is accurate, while it may be true that a windows mobile device will probably not recognise this disc at all, i use an sd card formatted as ntfs in a laptop with no problems!
Click to expand...
Click to collapse
You can format removable media with NTFS, but you need to be extremely careful since NTFS is constantly caching data from the drive. Unless you disable write-back caching or eject the card each time prior to removing it (which cannot be done on a phone), you run a high risk of corrupting the data on it.
The problem with NTFS on removable media seems to be a windows issue. Not sure if that is windows mobile as well but it also seems to be fixed in a service pack. If I were having problems I wouldn't be using something with user rights and permissions on a device that does nothing with that.
motocrossmann said:
I have yet to have a problem with the mem card in my Kaiser. it is a 6Gb Sandisk. Do you have an off-brand?
My old HTC Sable had issues like you describe...
Click to expand...
Click to collapse
It's Sandisk SDHC 4GB
This is why I released my new software SD Sync Any Kaiser users tried it already? Currently only One way Sync (PPC -> Desktop) happens..
Regards,
Carty..
andaroo said:
arent .chk files left over by scandisk on a windows box?
this could be due to not ejecting the hardware before removing it from the pc!
under what circumstances are you experiencing this
Click to expand...
Click to collapse
Forgot to mention when trying to fix this I used the windows disc-check utility, but initially problem started after I installed one of the games (Tomb Rider I think) and the battery power was down to 2-3% when I turned my Kaiser off. I couldn't access the programm files folder from ppc, and it was empty when I opened it on pc...except there was tombrider.exe left...
NotATreoFan said:
.CHK files are recovered file fragments from Scandisk. I would try a low level format of your SD card and then reformat as FAT32 (for the love of ____, do not use NTFS). NTFS is not designed for removable media and will give you nothing but headaches.
Click to expand...
Click to collapse
Hmmm, interestingly it doesn't display the file system in the properties menu like it would for the hard drives... but I'm pretty sure I didn't format the card...unless was formatted NTFS when first inserted in a device...
ChumleyEX said:
Yes when combatting this issue I find that handguns are useless and shotguns are all the rage. When trying to do the official combat I like to taunt the problem a bit with the pistol (which just makes it mad) and then go all out with the shot gun. It's always good to have someone else at your side with a missle launcher or something, ya know, for the hardcore combat.
Click to expand...
Click to collapse
Great job that you know all this stuff...must have used it alot coz you sound quite like a specialist
You might have forgotten to mention granades - there are different types of them like smoke granades or even those which can kill (OMG!) someone...that kind of stuff...
User X said:
Hmmm, interestingly it doesn't display the file system in the properties menu like it would for the hard drives... but I'm pretty sure I didn't format the card...unless was formatted NTFS when first inserted in a device...
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Click to collapse
If you didn't format it, then it would be FAT32 formatted by default.
Extensive application in MicroSD
User X said:
Forgot to mention when trying to fix this I used the windows disc-check utility, but initially problem started after I installed one of the games (Tomb Rider I think) and the battery power was down to 2-3% when I turned my Kaiser off. I couldn't access the programm files folder from ppc, and it was empty when I opened it on pc...except there was tombrider.exe left...
Click to expand...
Click to collapse
You installed the games in the MicroSD, right?
I experienced it twice, sorted out that it happens when I'm using an application that installed in the MicroSD and then turned the device off. The strange thing that it is only occurred when using a large sized and resource extensive application (especially games), it doesn't happen when using light application such as YahooGo!, MapKing, etc. I end up to install all apps in main memory, and lived peacefully (finger crossed)
I hoped someone could explain why this happen, even better cured it
Regards,
Jeffry
Saving data from *.CHK
User X said:
Every once in a while I'm having the same sort of problem whith my storage card, whether it's MiniSD, MicroSD or SDHC. To be more precise some/all files disappear leaving nothing but some bloody FILE*.CHK files, which seem to be completely useless. I did some google-search and there seems to be no practical way of retrieving the lost data.
I'm curious: why is it happening in the first place and has anyone been successful in combatting this issue? (don't tell me about backups )
Click to expand...
Click to collapse
Actually you still can save your files, it still there just with mixed up name and extention
1. Sort the file by it's file size, you could get an idea what file it was by it's size
2. Change the file extention according to what you think it supposed to be judging by its size, ie:
small file to *.txt and open it with notepad, read what's in it and change it to what it's supposed to be .pwi, .xls, etc
2 - 6 MB files to *.mp3
etc
I know it's painful especially with my 2GB data, also you cannot saved your application this way, but I saved my most recent and important data this way, for the rest I just have to satisfy with my 1 month old backup
If anyone could suggest better way, pleaseee let me know
Just happen again
[email protected]!!! me and my big mouth... it just happen again this morning, same thing, install app in storage card, device turned off and wham!
But this time I did some googling and found this utility really helpfull
http://www.cgsecurity.org/wiki/TestDisk_Download
Well, anyone could explain what caused it and how to prevent it?
Any information will be appreciated
Thanks
jeffry_p said:
You installed the games in the MicroSD, right?
I experienced it twice, sorted out that it happens when I'm using an application that installed in the MicroSD and then turned the device off. The strange thing that it is only occurred when using a large sized and resource extensive application (especially games)...
Jeffry
Click to expand...
Click to collapse
Yes mate! Sounds very much like what happened here - after intstalling Tomb Rider (4-6MB) in the MicroSD I launched it and then soft reset - my program files vanished...And I dont think I could do anything about that, the .CHK files I got after running the checkdisc utility were all the same size - 32kb, something to do with the cluster size I think...
I guess the question of the cause and the way to prevent it remains open...
Bump
No one can help?
Anyone also experienced this problem? Please tell us your experience, who know we could sort out something
Thanks
Hi All
I had stored all my data and some apps on my 4gb Sandisk SD card and all of a sudden all the data from the card is gone. I notice error messages of applications like google map etc that i had installed on the Sd card when they were trying to run they could no longer see the files. IS there a fix for this problem? I see i n other places they decribe a lengthy procedure including buying some softwares for restoring data, however if i do that i think the data can vanish anytime again. I also see others complaining about this,, please let me know if there is any other easy way to restore data, and how can i permanently fix the problem? does att help??
Put the card in your computer, see if you can run a disk check on it.
I've had my SD card 'look blank' or not even show up on the Tilt three times since I've owned it and all three times I did a filesystem check and it found errors. Once corrected, the card was fine again.
Yeah, you need to find out a little more information as to what is going on.
First off figure out if it is the phone or the card that is the problem.
Remove the card and find some other way of reading it. It could be something as simple as a bad connection on the terminal pins. Maybe clean them or see if they are bent out of place.
Maybe the card has bad sectors. Doing what khaystsus said will help you find that out.
At any rate, there are alot of things that could cause the same problems so a little more investigation and information is needed for anyone to help you any further.
Mikeb32078 said:
Yeah, you need to find out a little more information as to what is going on.
First off figure out if it is the phone or the card that is the problem.
Remove the card and find some other way of reading it. It could be something as simple as a bad connection on the terminal pins. Maybe clean them or see if they are bent out of place.
Maybe the card has bad sectors. Doing what khaystsus said will help you find that out.
At any rate, there are alot of things that could cause the same problems so a little more investigation and information is needed for anyone to help you any further.
Click to expand...
Click to collapse
Thanks I will try with the computer, ,but this is not a isolated problem if you do a search in google, you will see very many people complaining of the same thing.
examples
http://forums.wireless.att.com/cng/board/message?board.id=cingular&thread.id=95047
http://social.microsoft.com/Forums/.../thread/8f3276df-9444-4098-b0f4-6155582a2765/
Of course this is not an isolated problem -- this can happen on any WM phone. given the right conditions
It happened several times on my old ETEN.
One culprit is if you run the tweak to store your IE cache files on the card instead of internal memory -- this has been known to corrupt the card.
Other things can happen also -- which is why I backup my card at least once a week.
srimoorthy said:
Thanks I will try with the computer, ,but this is not a isolated problem if you do a search in google, you will see very many people complaining of the same thing.
examples
http://forums.wireless.att.com/cng/board/message?board.id=cingular&thread.id=95047
http://social.microsoft.com/Forums/.../thread/8f3276df-9444-4098-b0f4-6155582a2765/
Click to expand...
Click to collapse
Have you run a checkdisk on the card yet? What were the results?
No not yet, did nt get much of a chance yesterday going to do it today if i am able to find my card reader !
I wonder if the encrypted sdcard access will be exactly like wp7.....
if the phone is damaged, and all my files/pictures have not been mirrored yet.....
can I still put the card into a reader and get them off?
I watched another thread and it wasn't clear if card access and encryption will be as restrictive as it currently is. a damaged touch screen alone could mean allllll my pictures would be gone, as there is no way to access them.
I know about syncing, but that doesn't always happen 5 minutes before someone drops their phone at a wedding
At least by what we heard it seems that the phones that do have a SDCard-Slot will use regular SD-Cards - that is to say: FAT formatted so you should be able to take it out and use on your PC. What we don't know yet is how data will end up on the card if you use it on the phone. I guess there will be a setting allowing you to store pictures/videos on the SD-card instead of in the phone's memory but you won't be storing App data there as at least in the Leaked SDK some time back Apps were only able to read from the SD-Card but not to write to it.
hmm, sounds like real phone backups still aren't going to be possible.
sigh
Given that Microsoft was specifically looking for people to improve the Backup experience and that there are at least some Cloud Backup capabilities that were leaked I actually believe that we will see much improved Backup possibilities - this has nothing to do with the SD-Card support. But as we don't know any details yet I did not mention that.
Given that Microsoft was specifically looking for people to improve the Backup experience and that there are at least some Cloud Backup capabilities that were leaked I actually believe that we will see much improved Backup possibilities - this has nothing to do with the SD-Card support. But as we don't know any details yet I did not mention that.
Click to expand...
Click to collapse
cloud backup has very little appeal to me. an imaging of the phone to sdcard is simple, effective, and easy enough to encrypt if security is an issue.
why Microsoft is opposed (or hasn't thought of) simple sdcard backups is beyond me.
I can't imagine waiting an hour ( and the data used) for a cloud solution to mirror a persons phone from a damaged phone to a new, undamaged device.
Hi All, long time user of XDA forums but havent had to root a phone in a while.
I deleted some pictures in error from my phone yesterday and am desperately trying to figure out a way to get them back. They dont appear in the recycle bin and they dont appear with a standard file search app, thousands of pictures do but not the ones I deleted.
Apparantly I need to root the phone to get better access rights to do this, but am I right in believing that rooting the phone will delete everything anyway?
Any way to do this please? I really need some help with these important images.
Samsung Galaxy S21 Ultra (UK) 5G SM-G998B/DS
Regards Tony
Don't try to use trashware like DrFone.
The internal memory is encrypted by default so if you lose that encryption key for any reason you are boned.
If you can use adb to access the unused portion of the drive, that may work.
Using ADB in recovery mode - recovering files from a locked phone
Hello, here's my problem: I accidentally put a schematic as a code on my phone that I immediately forgot. Now that I only have access to the lock screen, I can't put my phone in file transfer mode because I'd like to retrieve it before resetting...
forum.xda-developers.com
If you are successful know that the folder structure has been lost. The jpegs will be disassociated from their exif data, time stamps, image numbers, etc have been lost forever.
Using that phone at all may overwrite the data as it's now free space for the system to use; power down the device until ready to attempt recover.
Backup all data before you begin whatever you attempt!
Personally at this point I would have written them off. If you do recover data, you'll understand why. In the future use a gallery that has a trash bin if possible.
Redundantly backup critical data to at least 2 hdds that are physically and electronically isolated from each other and the PC. A OTG flashstick can be used for quick "dirty" backups. Don't use as a primary backup.
If you can mount your phone on a PC using a USB cable, you could try a PC based file recovery program. (I honestly don't know if it would work over a USB cable, but no harm if it doesn't.)
Be careful where you get the recovery software. There are lots of people willing to promise the world, take your money, and blame the file recovery ghods when they can't recover squat.
The one I'd try first has the worst user interface, but it's free and has saved my butt more than once. It's called PhotoRec. (It's packaged in with a drive recovery program called TestDisk.) PhotoRec supports a bunch of Linux/Android disk formats (many only handle FAT and NTFS variants, which won't help you). Just be sure you read the instructions and be sure to direct the output to a dedicated folder on a drive different than your phone.
TestDisk Download
Download TestDisk & PhotoRec. TestDisk is a free and open source data recovery software tool designed to recover lost partition and unerase deleted files. PhotoRec is a file carver data recovery software tool.
www.cgsecurity.org
I just noticed that PhotoRec finally has a Windows based GUI implementation called QPhotoRec. Same download location as I mentioned in the previous message. But should be a fair bit easier to use.
Note: If QPhotoRec can't see your phone on the USB cable, you might still want to give PhotoRec a try.
One last note... As long as you continue to use your phone, it is still writing things to the drive that holds the pictures you want to recover. If the phone happens to overwrite the place the photos sat on, they're gone forever. So it's best if that you power off your phone until you can make an attempt to recover the photos and you move quickly to make the attempt... Good luck.
After the recent dumping of Samsung Cloud and the forced migration to a Microsoft cloud drive,I lost a bunch of photos from my alternative device (I had 2 phones and 2 Samsung Cloud accounts- but the changeover couldn't handle the 2 account bit, both phones ended up with the exact same data) and I tried several methods to recover the lost data and eventually had to give up. Good luck.
Relying on cloud to backup files is crazy. Keep a couple hard drives/usb drives for that.
rafaelinux said:
Relying on cloud to backup files is crazy. Keep a couple hard drives/usb drives for that.
Click to expand...
Click to collapse
Cloud backup is safer than keeping a couple of hard drives and usb drives. By design cloud storage is replicated a minimum of 3 times across 3 regional data centres, each having multiple copies on distributed storage with multiple backup services and UPS.
Your data is not safer on two USB drives vs a Google data centre. Do you keep them in fireproof and electronic magnetic proof safe? If not then your backups are not protected at the first step, physical protection. Do you cycle the hard you use, change the drives regularly so that there is no chance of hardware failure, do you consider MTBF rates of the devices you use? USB drives have a limited number of writes so using them too much may risk the data on them. Do you use multiple off-site safes? If both are in one place and there is some disaster (building collapse, or fire for example) then you've lost your backups. Each site needs a fireproof/EM proof safe which adds a huge extra cost.
did you check the trash folders?? usually deleted files stay on for 30 days unless physical deleted from the trash like windows
ScalesOnline said:
Hi All, long time user of XDA forums but havent had to root a phone in a while.
I deleted some pictures in error from my phone yesterday and am desperately trying to figure out a way to get them back. They dont appear in the recycle bin and they dont appear with a standard file search app, thousands of pictures do but not the ones I deleted.
Apparantly I need to root the phone to get better access rights to do this, but am I right in believing that rooting the phone will delete everything anyway?
Any way to do this please? I really need some help with these important images.
Samsung Galaxy S21 Ultra (UK) 5G SM-G998B/DS
Regards Tony
Click to expand...
Click to collapse
What app did you delete the photos in?
Each app will have its own "delete/recycle" solution. For example, if you delete photos in Google Photos they are kept in the "Bin" for 30 days. If you used a file manager it may have a recycle bin or may have permanently deleted using write over to provide a true delete function.
Rooting like years agao
I am cool with what i have now
Yes you do for acces to internal memory
How to know the BGA (ball grid array) type of Huawei P20 Pro ?
I ask this question for a data recovery purpose.
I've asked the question to Huawei, but so far, it seems to be difficult to get an answer from them.
Hot air it off and see...
I think I found without disassembly !
BGA153, according to a stencil sold on ebay
fabienaurejac said:
I think I found without disassembly !
BGA153, according to a stencil sold on ebay
Click to expand...
Click to collapse
You thinking of trying to drill through the pcb to access the pads?
I don't think about anything, a professional asked me to try to get this kind of information in order to try data recovery. I don't know if it's possible and don't know either how he wants to proceed. The only thing I know is that the phone kept the photo data (what I want to get back) probably not encrypted.
Good luck... that's the hard way to backup data.
Personally I would write it off as KIA.
What is KIA ? I will try to get info about this.
Lol, killed in action. A military term.
In general data recovery is a lost cause to a greater or lesser extent, generally the former though.
Always redundantly backup critical data to at least 2 hhds that are physically and electronically isolated from each other and the PC on a regular basis.
Use a SD card as a data drive if the device has that capability. All critical data goes there, only the apps, dcim and download folders go on the internal memory. Then backup the SD card.
It gives you more protection from data loss if the OS crashes or if the device is damaged. Quality SD cards rarely fail. More layers mean more chances to prevent data loss.
Ok thank you ! I usually backup my data twice, but here the phone wasn't mine, and most people sadly do not backup their data.
fabienaurejac said:
Ok thank you ! I usually backup my data twice, but here the phone wasn't mine, and most people sadly do not backup their data.
Click to expand...
Click to collapse
Some need to learn the hard way. Androids tend to be very stable and reliable if set up right. Unfortunately things however rare do happen...