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SD card data loss after overclocking?

Did anyone experience an unexplained loss of data (in particular, the "My Documents" folder) on their SD card after overclocking their device (Jamin)?
I overclocked it yesterday and while everything works like a charm, the entire My Documents folder disappeared from my SD card - gone, like the wind. Everything else is still there, and from the memory reading it seems like it's still full, too - but the content of the folders currently on the card can in no way make up for 600 Mb. I can't see the folder, and the Jamin can't access them, but the content is still there... somehow.
Tried the card on another pocket pc, same thing. Can't see most of my files. Any ideas? Help is highly appreciated!
Karin

I've been running overclocked at 252mhz for well over a month now and not had any data loss.
What brand memory card is it?

It's a Lexar. 1 Gig. I think maybe it's because I put the OmapClock program file into the storage card and linked from there?
I'll try to put the exe file into the Windows folder now, and then re-do the link process again. Hopefully it will work. I am used to the faster speed now and I don't want to go molasses again....

I too had the same problem... TWICE!!!
I thought at first it was a problem with Memaid, but it seems to be related more with overclocking. I too ran Omapclock.exe from the card and was accessed trhough a shortcut that was called through the camera button.
Now I just don't overclock just to see how it goes, but yes, I'd better be at 240 Mhz than 180 Mhz... But now I have to backup my SD card every now and then just in case... :?

SD data loss
I've also had SD data loss...
Twice in the last week ...
I am NOT running any overclocking on my JAMin but was using a no-name brand 4G miniSD card.
With the first failure, the result was as you describe. A full looking card, but nowhere near that amount of data on the card.
The second time 'round, I found that the SD card was filled up with empty directories !?! ...
I've put the 4GB card away for a while and have gone back to a 1Gb card (and keep a backup card, complete copy, nearby).
Sorry, my case not connected with overclocking, but same kind of data loss !
Cheers,
Wit C.

Persistent Storage on the Himalaya

I hear 'Persistent Storage' thrown around a lot here with the WM5 ROMs. While I know what it is on devices with WM5 pre-installed, what about on the Himalaya? If I install WM5 on my Himalaya, do I get TRUE Persistent Storage - ie. my data doesn't vaporise when the battery drops to a true 0%?
Also, does WM5 for Himalaya pretend to conk out at 50% battery charge like previous WMs do (as a precaution, of course), or does it let you drain the battery all the way down to 0%? (PLEASE read this MSDN Blog entry before you answer, else you might misunderstand what I'm trying to say here).
Thanks!

short answer is yes
but if you use ramdisk it dont keep it's data at batt death
being that it's ram

Rudegar said:
short answer is yes
but if you use ramdisk it dont keep it's data at batt death
being that it's ram
Click to expand...
Click to collapse
Does that mean my Blue Angel with Helmi AKU 3.2 ROM has persistent memory (Ramdisk excluded)?

yes all wm2005 is persistent
as it dont support storage on anything but flash
without the use of the 3th party software ramdisk from buzz

Ahhh I get it! But how about the limit on WM2003SE devices and older that forces them to report dead battery when the battery is really 50% (refer to MSDN article on first post)? Has that limit been removed on the Himalaya's version of WM5 as it has on other WM5 devices?
Also, for clarity, WM5 stores its registry and other vital system info on the flash storage instead of RAM, right?
Thanks again!

OK since no one seems to know, I did my own tests and:
1. WM5 does store its registry and etc on Flash, but I think most of you knew this already.
2. The 50% limit doesn't seem to have been removed by the WM5 ROM - if I let my WM5 Himalaya run to 0% and leave it for an hour before reviving it, its RAM (32MB 'Flash Disk' for me) still comes back fully intact. If the main battery had truly died, then the RAM should have cleared within 30 minutes, as that's how long the backup battery lasts.

toomuchdogfur said:
OK since no one seems to know, I did my own tests and:
1. WM5 does store its registry and etc on Flash, but I think most of you knew this already.
2. The 50% limit doesn't seem to have been removed by the WM5 ROM - if I let my WM5 Himalaya run to 0% and leave it for an hour before reviving it, its RAM (32MB 'Flash Disk' for me) still comes back fully intact. If the main battery had truly died, then the RAM should have cleared within 30 minutes, as that's how long the backup battery lasts.
Click to expand...
Click to collapse
On my himalaya when ever I take out the battery for a min or 2 the RAMDisk data vaporise. What happen, is my backup battery dead?? or like Rudegar said it ram and it dont keep it's data.

mixed reports about this
some ppl get hardresets as in on 2003 devices
just from changing sim card
some dont
guess it could come down to backup batt being poor or dead
because as far as i know the the purpos of the backup batt is to keep
the ram powered so it dont loose its data when the main batt is removed
flash "persistent" ram dont require power to keep it's data

Rudegar said:
mixed reports about this
some ppl get hardresets as in on 2003 devices
just from changing sim card
some dont
guess it could come down to backup batt being poor or dead
because as far as i know the the purpos of the backup batt is to keep
the ram powered so it dont loose its data when the main batt is removed
flash "persistent" ram dont require power to keep it's data
Click to expand...
Click to collapse
Thank Rudegar
anyone try changing the b/u batt? hell they sholder it on, guess I have to bu the ram to sd

Oop! double post

Backup battery
Yes , b/u battery is inside soldered and difficult to replace . Mine holds data about 10 mins . After it ramdisk is clear . So I most needed programs install in President store ( actually 30,5MB ) God idea is keep data on SD card .

You will not loose any data if Himalaya with WM2005 loose power except ramdisc. I install software only on ramdisc because it's bad habit to install it on main storage, and SD card is much slower. I hovewer mirror ramdisc on SD card, so I can simply copy it if something goes wrong.

Marx2 said:
You will not loose any data if Himalaya with WM2005 loose power except ramdisc. I install software only on ramdisc because it's bad habit to install it on main storage, and SD card is much slower. I hovewer mirror ramdisc on SD card, so I can simply copy it if something goes wrong.
Click to expand...
Click to collapse
Dear Marx2,
Interested to MIRROR RAMDISC ON SD Card. How can I do that.

i suspect he use his filemanager like total commander to manualy copy his ramdisk data to a dir on his sd card

yet, i don't know automated solution
anyway i don't install important programs often

Raphael kills SD-Cards??

Hello everyone,
i own a Raphael since January and in this time it allready killed 2 SD-Cards.
The first one about 4 months ago.
Suddenly in the middle of usage the Raphael froze and i could not get it started again. even after a hardreset it was stuck in the bootscreen.
after a lot of trying and finally removing the sd card it bootet again without a problem.
the card was not readable anymore in any of my devices or windows boxes.
i thougth myself. well can happen even when a card is only half a year old got a new 8GB card and forgot about the incident.
yesterday while listening to some podcast suddenly the sound died. taking out the phone i found out it did not reacted to any power button presses or anything the screen stayed black.
after a softreset the phone worked again but took about 5 minutes to get in a usable state and the programms installed on the sd card where not aviable anymore.
taking a closer look i found that the card was not displayed in file explorer anymore.
gave it a try with my mp3 player. same result no card was found.
today in the morning i gave it a try on the pc with an sd-adabter. but also no result, wondows does not even recocnizes any device being plugged in. tryed a few data recover tools but non of them found the card.
someone has similiar experiances or any tips how i could get my data back from the card?
i guess the phone has to be send back for maintainance, but i doubt that they will find anything, if they accept it at all.

I have changed 4 sd cards because of similar problems. But the problem is most likely because of the fragility of high capacity microSDs, I wouldn't blame Raphael. Try other manufacturers (and try to find the ones that are not just rebranded)

I've had many issues with sd card corruption, but have solved some of the issues. Here's my advice (fwiw):
1. Get a card scanner, and regularly scan your catd. I do it everyday (takes 5 min). I use Wizcode Scandisk. It fixes errors and dumps out files that can be opened in notepad. It's worth looking at them, as it helped me find the multiple sources of corruption that I had.
2. Don't put your PIE cache on the card.
3. Change all 'save' paths (esp. the camera) to main memory.
4. Store any programs you use a lot on main memory.
5. Do NOT have any programs that run constantly on the sd card.
6. Do NOT put Fingerkeyboard on the sd card (major problem for me).
Basically, my advice is to use sd cards for storage. The Raphael has a lot of memory-use it for programs. I haven't had to format my card in about 4 months. I was doing it every couple of weeks for a while.

well basically i was using my sd card as a storage place for movies and podcast + podcastplayer prog.
and was using the player more or less the whole day.
i used the same card (and the other one before) also in my mp3 player when the raphael or the bt headset run out of power and there is no power outlet aviable to recharge. and twice the card failed in the rapahel.
when i got a new card, i also found that the card is working 100% on pc and mp3 player, but the raphael still can not see any sd card.
i really blame the phone and also assume that it now has a defective reader.
have to give it back to repairs as soon i have flashed the original firmware and make my way back to the store

You should scan the disk to find out the error sources. It may be something simple that causing them. Also, if your phone freezes when listening to music, you may want to either wait it out, or remove the card before soft resetting. You should do some searches on card corruption. There are lots of threads here that can be helpful.

many Sdcard and usbStick manufacturers got lowlevel format tools you can download and get cards not otherwise working in cardreaders on pc back to life

would love to get those cards working again. but i also would love to get the data back that was on them.
but the problem is the cards do not even appear on the pc, or any other device i have that can read/write them (usb card reader, digi cam, mp3 player)
its just as if nothing is ever inserted in the reader.

the low level format tools don't rely on windows driver model to detect cards

Flash Format (cnetx) has always been able to re-format my card, even when my pc couldn't recognize it and neither could my fuze. It has a free trial that works fine.

I haven't experienced any of these issues myself. But I'm sure I will now that I said that....

i gave that flash format a try, but it even failed to install. was one of those weird .exe installers. on the pc side it told me install was sucessfull, but on the ppc side was just a promt "installation failed".
a cab install would be nice, but without a working cardreader in the phone i guess would also not be of much help. i guess cuz of that that prog will not help me much. the reader in the phone is broken. cant read any cards, even brand new unused ones that are fine everywhere else just dont show up on the phone.
as for other "low level format tools" my search was quite unsecessful. i was looking at the sandisk and the transcend page (the suppliers of my 3 cards) but could not find anything.
google just found more request for this kind of program but not really somewhere where i could get it.

patlabor said:
i gave that flash format a try, but it even failed to install. was one of those weird .exe installers. on the pc side it told me install was sucessfull, but on the ppc side was just a promt "installation failed".
a cab install would be nice, but without a working cardreader in the phone i guess would also not be of much help. i guess cuz of that that prog will not help me much. the reader in the phone is broken. cant read any cards, even brand new unused ones that are fine everywhere else just dont show up on the phone.
as for other "low level format tools" my search was quite unsecessful. i was looking at the sandisk and the transcend page (the suppliers of my 3 cards) but could not find anything.
google just found more request for this kind of program but not really somewhere where i could get it.
Click to expand...
Click to collapse
Check C:\Program Files\Microsoft ActiveSync\CNETX-you'll find the cab in there. There will be several-you want the PPC-Arm one. It should install fine.

Card Freeze
Yeah I had the same thing happen. Raphael would not boot unless I removed the card and as soon as I placed the card back into the sd slot it would lock up. Unlike you I was able to get on of my PCs (either the XP Pro or the Vista Pro) to recognize it but all I could do was format it.
OK I like the idea of moving all the data to the main however I'm an old Windows CE guy (yeah I had a Jornado) and the memory used to be shared between program and storage. The device would allocate from the other when more was needed. If I place all the stuff I want into the Raphael main memory won't that lower the amount of RAM I have for running programs or vice versa? I really don't know if the memory is fluid since all I get when I look into the memory is one listing total storage and one total program, there is no slider bar like there used to be in windows ce.

webfrm said:
Yeah I had the same thing happen. Raphael would not boot unless I removed the card and as soon as I placed the card back into the sd slot it would lock up. Unlike you I was able to get on of my PCs (either the XP Pro or the Vista Pro) to recognize it but all I could do was format it.
OK I like the idea of moving all the data to the main however I'm an old Windows CE guy (yeah I had a Jornado) and the memory used to be shared between program and storage. The device would allocate from the other when more was needed. If I place all the stuff I want into the Raphael main memory won't that lower the amount of RAM I have for running programs or vice versa? I really don't know if the memory is fluid since all I get when I look into the memory is one listing total storage and one total program, there is no slider bar like there used to be in windows ce.
Click to expand...
Click to collapse
The storage memory on the device is flash, not ram, so you don't lose program memory changing the save paths to main memory (if that's what you meant by moving data to main memory).
I never had any issues with my storage cards (sd and cf) on my 2003 device. I don't think it was the device, but rather the cards. The big, 16 gb cards just seem to be less hardy than a 1-2 gb card. I had all my apps on the storage card (including stuff like magic button), and never had a problem. But, jeez, the 16 g microsd is sensitive as hell. It gets minor bits of corruption at least once a week. I scan it everyday to avoid it crashing, which has helped, because I've gone 4 months without formatting it. One thing that I've found screws it up royally is doing a lot of file/directory operations over active sync on a pc. I don't know why, but cutting and pasting files from one folder to another in the sd card frequently results in lost clusters. Renaming folders is also a bad idea.

OK Flash
Well I guess I didn't explain it correctly. According to HTC the RAM is 288MB with a ROM of 512MB. So I'm really confused since according to the start>settings>system>memory the total for my storage and my program = 549MB which is of course more than 288 and 512. So when I load applications into my device and get a choice of main or storage card when it was a large file (some apps I use were 14 megs or more) I would choose the storage card.
My old experience with Windows CE was whatever memory was on the device was shared with both the program and storage, so I would put as much as possible on my storage card. However in windows 6.1 or higher it lists two separate columns for Program and Storage with: Total, In Use, and Free. So when I install apps I presumed they went into the storage area. Am I mistaken? I figured Program on the device meant how much is currently in use. Kinda like opening multiple windows on a PC. I notice it's low when at once I have 4 applications open on my windows mobile device so that's what I thought Program memory was.
Therefore does installing to the Main, when given a choice during program installation. where does it get installed ROM, RAM? Why is my total memory higher than RAM or the ROM
Any insight would help me decide the best location for my program installation to not corrupt the data, or have the flash card screw me up either.

288 MB is the total amount of system ram. A large amount is not user-accessible, it's used by the kernel/OS/Page-pool, so you don't see it reported. It's still there, though. The rom memory is 512 MB, but the actual memory in rom is subtracted by the storage memory so you see the amount of user-available memory. With 2003 devices, if the battery ran down, you lost all of your data, because the storage memory was in RAM (except perhaps for a little flash disk space). But with a fuze, you can pull the battery out, and not lose your data.

Totally confused
OK your right about the 2003 devices which is why I placed most of my stuff on a storage card. However why is my total reported memory 549MB more than the 512 ROM? Also when I install stuff to the device where does it get stored, the 512 ROM? Are you saying that the 200mb of Program being shown is 288 RAM minus the 88 being used to run the OS?
So are you saying its safe to install all my apps onto the device and I won't lose anything if the battery runs out?

Yeah, I've been saying that for about 3 weeks, lol! They got rid of the volatile storage memory with winmo 5; we're onto 6.5 now, and it's a thing of the distant past. I you don't believe me, pull out your battery (there's no backup battery on the device) and see if it causes a hard reset.

This is not an uncommon problem with digital cameras, as well. It's complicated, but the bottom line is this: whenever you buy an SD/micro SDHC/etc. card, you should do a full format of it on your COMPUTER, then put it in your device.

[Q] Transfered apps

Hi guys.
I'm having an issue on my XL.
This happens every time I transfer an app to internal(via settings->apps) or on SD(titanium backup, clean master).
After a reboot, it doesn't immediately show up in the app drawer. Eventually, after 6-10 seconds it does shows up at the end of the drawer.
Its very annoying...
Any help or suggestions REALLY appreciated
Notes: 4.2.2, BL Unlocked, rooted, tried re-flashing all stock FWs and pre-alpha CM but nothing worked :crying:
Also sorry if I missed something, its late and I'm starting to hear some wierd conversations in my head...

Brzi99 said:
Hi guys.
I'm having an issue on my XL.
This happens every time I transfer an app to internal(via settings->apps) or on SD(titanium backup, clean master).
After a reboot, it doesn't immediately show up in the app drawer. Eventually, after 6-10 seconds it does shows up at the end of the drawer.
Its very annoying...
Any help or suggestions REALLY appreciated
Notes: 4.2.2, BL Unlocked, rooted, tried re-flashing all stock FWs and pre-alpha CM but nothing worked :crying:
Also sorry if I missed something, its late and I'm starting to hear some wierd conversations in my head...
Click to expand...
Click to collapse
This is quite normal. You have sent a file/app to SD card and it is not immediately available when system loads. After system loads, it starts to read SD card and then you see your apps.
Even If you use a faster sdcard like class 10, you might see improvement but there will be always a delay.
Further, the more apps you have on your phone, the more time it will take to read your SD card.
How often you restart your phone ? I hardly restart it in months.

Hnk1 said:
This is quite normal. You have sent a file/app to SD card and it is not immediately available when system loads. After system loads, it starts to read SD card and then you see your apps.
Even If you use a faster sdcard like class 10, you might see improvement but there will be always a delay.
Further, the more apps you have on your phone, the more time it will take to read your SD card.
How often you restart your phone ? I hardly restart it in months.
Click to expand...
Click to collapse
Well I restart it quite often lately...
I'm aware that forcing transfer to SD is risky, but as I said, this doesn't happen only if I transfer an app to SD, but also to internal memory. And that didn't happen before.
For an example, I flash a generic ftf, turn on the phone, reboot and transfer Office Suite to interal memory.
Also, I use a class 10 Kingston 32 gb.

Brzi99 said:
Well I restart it quite often lately...
I'm aware that forcing transfer to SD is risky, but as I said, this doesn't happen only if I transfer an app to SD, but also to internal memory. And that didn't happen before.
For an example, I flash a generic ftf, turn on the phone, reboot and transfer Office Suite to interal memory.
Also, I use a class 10 Kingston 32 gb.
Click to expand...
Click to collapse
I am sorry to disappoint you but it has always been there for me when I had many apps/more than 50% full internal or SD memory in all phones I used EXCEPT Nexus devices. (It only has one memory. Not two or three )
The phone reads internal memory and SD card the same way, you can think of both as two SD cards. One which is removable and other not.
Try clearing dalvik cache. It might help but chances are slim.
Here what you do , restart your phone and do something else for a bit like a glass of water, or check what's in fridge to eat

Hnk1 said:
I am sorry to disappoint you but it has always been there for me when I had many apps/more than 50% full internal or SD memory in all phones I used EXCEPT Nexus devices. (It only has one memory. Not two or three )
The phone reads internal memory and SD card the same way, you can think of both as two SD cards. One which is removable and other not.
Try clearing dalvik cache. It might help but chances are slim.
Here what you do , restart your phone and do something else for a bit like a glass of water, or check what's in fridge to eat
Click to expand...
Click to collapse
Hahaha thanks for your adivce
Yeah, tried cleaning dalvik cache... surprise, surprise, it didn't work.
But hey, it's nothing fatal. All of my apps fit in phone memory.
Still, thanks for clearing it up for me.

Cannot upgrade my SD card to a higher capacity

I have an interesting phenomenon. I want to upgrage an extFAT 256 Gb SD card to an extFAT 1 Tb SD card. The source and the destination cards are not encrypted. I copied all unhidden files from the old one to the new one via a USB reader. I can see everything on my 1 Tb card. When I insert the new card to the phone, some folders like download, music or video are empty. I remove the card from my phone and put it to the same USB reader. These directories contain no files. It looks like you cannot simply copy files. Of course, I can copy them connecting my phone via USB; however, it will take a day to transfer 65 Gb of data. Disk imaging is very slow too. I'm on UI 4.0 Stock, Note 20 Ultra.

Format and load card in the phone.
You need a V30 rated card for best speed.

Thanks! No, it does't work. I've done it the same way: format on the phone / use very fast card. Copy to the phone speed is 700 Kps, via USB reader - 7.5 Mps. I'm afraid it has something to do with the card ID xxxx-xxxx. Volume ID changer doesn't work with new SD cards.

All I do is get a Sandisk extreme, format in phone and it's good to go.
I'm running two N10+'s, one running P the other Q. Using a 512 gb card.
In phone transfer speeds are about .5 [email protected] Average about 1.
Try going from internal memory to card. Should be about [email protected]
Check the PC, use the SmartSwitch driver.
Access SD card drive in the phone using Windows Disk Management, scan for new devices, load/download from that window.
Check Event Viewer for error messages.
Try clearing the system cache.

The story is even worse. I have a 512 Gb os Internal Storage version . I copied my SD card to it, put a new SD card and copy all my files from external to SD. The copy process was fast I was able to see my files on the new SD card. As soon as I deleted a copy from the Interatal Storage, my files were automatically erased from the SD card.

robotov said:
The story is even worse. I have a 512 Gb os Internal Storage version . I copied my SD card to it, put a new SD card and copy all my files from external to SD. The copy process was fast I was able to see my files on the new SD card. As soon as I deleted a copy from the Interatal Storage, my files were automatically erased from the SD card.
Click to expand...
Click to collapse
I trust you have redundant copies saved on hdds...
How fast? The card's top speed is around [email protected] Sounds like it was just deleting the files, not writing them to the card.
Try in safe mode.
Run a Check Disk on the PC. Do a low level format and always format in the phone before use. A 3rd party app maybe more helpful for low level formatting.
More ideas.
*always keep the possibility of a virus or rootkit in mind when you observe unexplained behavior with an Android. These are very rare unless you do something stupid... as we all have.
If one disk or more are suspected of being compromised keep them 100% isolated from the backups!!! As they should be anyway.

It's also possible a hidden user setting was altered. Poorly written 3rd apps can do this, unistalling may not fix it or could even trigger it.
Factory reset to clear the user data and reset everything to default. If you did any major firmware upgrades and you didn't factory reset... it's time to.
I don't advocate factory resetting normally at all but for the above issues sometimes it's the best option for a stock Android.
If you can find the app that alter the hidden user setting you may be able to repair it sometimes by reinstalling the app and toggling the setting in it that triggered the issue than unistalling it again, if it's an option. I've done this before, in fact it was on the current load I'm using which will be 2 yo in June. I prefer to find the issue rather than nuke whenever possible... to prevent reoccurrence.

Thank you! I've found the problem. I had to disable zip compressed folders functionality on my PC using a registry fix. Obvously, the phone doesn't support this feature.

robotov said:
Thank you! I've found the problem. I had to disable zip compressed folders functionality on my PC using a registry fix. Obvously, the phone doesn't support this feature.
Click to expand...
Click to collapse
Yay! Nothing like success!
Congratulations on your 1.5tb dual drive handheld PC
♤excellent♤
Lol, you had me worried as I'm thinking of up sizing to a 1tb card on my N10+
Never encrpt, compressed or clone data drives especially media files as bad things tend to happen. Those silly little null marks matter