Beware of 2Gb Corsair Mini SD cards - Advantage X7500, MDA Ameo Accessories

They have a tendency to corrupt and when reformatted will be transformed into a 966Mb card!
This appears to be a known problem - see http://www.houseofhelp.com/forums/showthread.php?p=299937
It has certainly happened to me before on my Ameo and has now happened again. Others have had the same problem. The only solution (until Corsair write a program to fix it (due next year!!!)) is apparently to use CFDisk. Unfortunately, I don't have a Linux machine!
You have been warned!

Related

What is the largest SD card that can be used in an XDAIIi?

Hi,
A simple question but I couldn't find it categorically written down anywhere: What is the largest SD card that can be used in an XDAIIi?
Thanks a lot,
James.
Im not sure i know of any limit, but its worth noting that only a Transcend 80x SD card works properly and as far as i know they go up to 1gig.
Any other card (non 80x) causes problems with the XDA IIi and causes it to hang.
Thanks for the info. I've been using San Disk 256Mb cards for a while which seem to work fine (although one did get confused once and thought it contained stuff when it didn't so had to be reflashed).
I'll stick to Transcend when buying a new bigger one.
Thanks,
James.
Danny-B- said:
Im not sure i know of any limit, but its worth noting that only a Transcend 80x SD card works properly and as far as i know they go up to 1gig.
Any other card (non 80x) causes problems with the XDA IIi and causes it to hang.
Click to expand...
Click to collapse
That is not universally true. I have been using a SanDisk 1.0 GB Ultra II SD card in my XDA IIi for a number of months with no problems whatsoever.
Yeah, in fact i'd go sa far as to say it's not true, I'm using an Integral 60x 1Gb card and have not had any problems whatsoever.
The only problem I have found is that with 1gb cards the XDA2i seems to have a problem when accessing the card and accepting incoming communication at the same time e.g, reading the memory card whilst accepting a call or accessing GPRS. The phone seems to cut power/access to the memory card (disconnects it)and therefore makes the phone hang/freeze. This does not seem to be an issue with 512mb or lower sized cards only 1gb and above. I have tried many different brands and this seems to hold true. For SATNAV applications people advise 512mb cards or lower work best. Again this I have found to be with card accessing issues and 1gb+ cards seem to lose connection, admittedly some cut off slightly faster than others. I use a gb card for most of my apps, but if running TomTom I swap in a 256mb.
ok perhaps i shouldnt have said ONLY transcend cards but i was just trying to highlight that i know that they work fine in the XDAIIi.
Yes there are going to be more brands that work fine too, as far as i know its a voltage issue, anyway im not a htc technician so thats as far as my knowledge goes
I'm using a SanDisk Ultra II 2.0GB card with no problem at all in my Qtek 2020i with O2 rom
I have been doing some reserch into SD Cards because of this problem.
It seems to do with the layers in the card. If the card is of good quality and is a single layer they seem to work OK, if it is dual layer you could have problems.
It has everything to do with current to the card and little to do with card speed.
Single layer cards of high storage capacity are more expensive to produce, because of this even the big brands use dual layer cards.
Interesting stuff about the layers. Thanks for the info.
Has anyone tried the San Disk Ultra II Plus which is the one that can be folded so it can be plugged directly into a USB port too? They look really useful (although are hard to find at the moment at a decent price) as it means you have both USB flash memory and SD combined which I'd find useful when travelling.
Re: Single layer cards
Does anyone know the brands other than Trancsend who use the Single layer card build?
Thx
i'm using a 2GO Maxell SDcard X150 and it works fine.
no pb at all
http://www.maxell.fr/Maxedhd/Sd%20Card/SDcard%202%20go%20(300%20dpi).jpg
I have 150x A-Data 2Gb. All is ok too...
I have a no-name 2 Gig crd and no issues (£84 from Novatech). Actually, 1 issue, bloody XDA locks up when removed from cradle more often than not & needs a soft reset. Other than that, zero probs...

New Transcend 1GB SD card causing TomTom 5.21 to lock up

Hi there,
It looks like newer Transcend cards are not immune to the TomTom lock up issue.
I have an O2 branded XDA2i with PUGS rom etc. It runs TomTom5.21 fine with the first Transcend 1GB card I bought.
When I'm in the car, I have the phone connected to my car kit via bluetooth. When I make a call, TomTom continues to run, but shows the mute symbol. When I hang up the call, TomTom carries on as normal.
I decided to buy another Trancend card as a backup. This time, though whenever I make a call - TomTom locks up. As in other peoples posts, sometimes this can be cured by pulling the card and re-inserting, other times a soft reset is required.
I thought I'd got a faulty card, so bought another with the intention of returning the faulty one.
The new card shows the same problem.
All three cards were bought within two months of each other.
Anybody else seeing issues with new Transcend cards anfd TomTom?
Cheers,
Chris.
Could you have a look to how are your cards format?
32kb in fat32?
May be they are different...
It's interesting!
Hi there,
I used PocketMechanic to reformat the card to the same spec as the working card. Also tried many other combinations.
Dosn't make any difference on either of the two non working cards.
Perhaps my XDA is extra sensitive to power or speed of the card - but the two newer cards are definetly different.
Be warned all of you that think Transcend is the Holy Grail for SD cards.
Chris.
I have lockups using transcend 2gb 150x...tried several different format tools - it didn't help...
i don't know what to do with it...=(
I can't even listen to music because of pauses... I even tried a player which cashes songs into ram.... but what is strange - it didn't help...
but I think thats because of player didn't cash anything but said that did...
because I don't understand how can it stop playing for 1-2 seconds each minute with cash for 5mb or 5 minutes of music... =|
There is another post related to the same subject:
http://forum.xda-developers.com/viewtopic.php?p=240871#240871
I am experiencing the same problem.
I've bought the 1GB x80 TRANSCEND SD card a little less than a month ago because it was supposed to cure all QTEK2020i problems.
But in fact it hasn't changed ANYthing compared to the LEXAR x32 1GB I was using before.
So, I decided to upgrade my QTEK rom with PUGS rom while taking the risk of voiding the QTEK warranty.
Unfortunatly, it hasn't solved my problems either. It seemed more stable initialy, and has cured GPRS usage problems and brought slighlty better GSM quality, but that's all with my settings.
Someone has reported this week, that moving from SD to MMC has cured his TT5 problems.
I keep my fingers crossed hoping that this one will be the right fix.
For people who bought their PDA through EXPANSYS, I encourage you to join this support poll:
http://www.expansys.com/forumthread.asp?code=121444&thread=35&man=QTEK
And for those who bought the QTEK version of this PDA, I encourage you to complain about the lack of any suppoet on that product.
look at my solution here....
http://forum.xda-developers.com/viewtopic.php?t=43143
hope that will help..[/url]
Ice_mephi said:
look at my solution here....
http://forum.xda-developers.com/viewtopic.php?t=43143
hope that will help..[/url]
Click to expand...
Click to collapse
I am sorry Ice_mephi but I don't see any solution there, or I've mistunderstood your comments.
I understand that your SD card might have had errors and they got fixed with the StorageTools application, but I don't see any link between this problem and the TT5.21 freezes. Thanks anyway for mentionning this application.
Listening to music out of any SD card has never been a problem for me, and hans't ben reported as being one from polls I've read so far.
Have I mistunderstood anything ?
I've been using the Transcend 80x 1Gb card with Tom Tom 5.21 on my XDAIIi with absolutely no problems at all for at least a month now (including traffic updates via GPRS). I used tha card as supplied, without reformatting etc.
Andy R said:
I've been using the Transcend 80x 1Gb card with Tom Tom 5.21 on my XDAIIi with absolutely no problems at all for at least a month now (including traffic updates via GPRS). I used tha card as supplied, without reformatting etc.
Click to expand...
Click to collapse
Hello Andy, also including POIS? Or only with the default installation.
Yes - I have POIs installed. It is set to remind me when I am near petrol stations and wi-fi hotspots (which I have set up myself).
I couldn't believe that the type of SD card would solve this, but it did, and I have never had a problem since!
Andy R said:
Yes - I have POIs installed. It is set to remind me when I am near petrol stations and wi-fi hotspots (which I have set up myself).
I couldn't believe that the type of SD card would solve this, but it did, and I have never had a problem since!
Click to expand...
Click to collapse
SD? Another users say that the MMC is working better. :?
I have trascend SD 1Gb 80x, without pois it works perfect, but with them I have freezes... :?
From my experience, changing from a LEXAR x32 1GB to a TRANSCEND x80 1GB didn't solve the problem. Other persons mentionned that they got to the same conclusion with latest TRANSCEND SD cards.
Changing the SD formatting seems to have fixed most of TT5 issues with my TRANSCEND card but I haven't got on trip for hours to confirm it.
People who moved from SD to MMC seem to have got rid of any TT5 freezes.
EricD
MMC is the way ahead
I've tried all the stuff mentioned here, including getting a transcend sd card, and although it behaved for about an hour, it started freezing and locking regular after that. I now use a 1Gb TwinMOS MMC+ card, and after 400miles yesterday have not had a single problem. Take what you want from this, but my TT5.21 seems to prefer MMC.
MMC.... is the answer
Replaced my Transcend 1Gb & SanDisk Extreme III SD's for MMC and had no more lockups since
See this similiar post:
http://forum.xda-developers.com/viewtopic.php?p=240871#240871

Mine solution for lockups of SD card

So... Yesterday I did one thing - and as the result - no lockups while listening to music today...
I have Qtek 2020i and trancsend 150x 2GB SD card.
What I did:
1) formatted my SD card using card reader.
2) than copied music to card with card reader too.
3) inserted card into ppc - tried to listen to music and got lots of lockups....
4) some days ago I found a tool for fixing errors SD card on ppc(format and defragment also): "Storage Tools 2.0". I tried to check sd card with it - and it found lots of errors on sd card.. (there were 2 kind of errors: "lost chains of files" and "2 files pointing same data").. so I runned it and it removed those errors...
5) today I listened to music almost all the day - and wow! there were no lockups!
I do belive that that lockups are caused by some harware fault while reading and writing data to SD card via ppc. but that program somehow corrects errors...don't know how..
but ! be carefull - I tried to format my card using that tool - but after that - my ppc and PC showed me that the card has no free space - I tried to reformat it via card reader and other tools - it didn't help.
but on transcend homepage I found util for correcting "free space issue" (that is that card's known issue i think..) and it saved my card...
and one more advice - when you'll check your cards for errors - set option to correct errors automaticly, or you will get thousands of messages asking fix or not each found error, and aborting checking won't help.. (I waited for 20 minutes after I pressed stop button - than just soft reseted ppc...)...
so here is that util:
http://www.softwinter.com/storagetools.html
you can use it without paying for it as I understood.
use at your own risk anyway...
That sounds like good news Ice.....
Lets see what others have to say, especially with TT5.
Well I still get the occasional TomTom lock up with my bog standard bought in Tesco's 256MB SD card, formatted to FAT32 2kb (about 1 lockup per 3 days, compared to 1 lockup per 30 mins before I switched to PUGS 1.11.162 and reformatted the card), so I just downloaded and tried this with some interesting results...
I analysed my storage card and it told me that there were errors. So I ran repair (manually clicking ok on each error) and I got a few lost file chains, but about 30 "Bad Directory Entry". When it finished, I ran the "Verify" again, and it told me there were still errors. Ran repair again, this time just 3 "Bad Directory Entry" errors.
Upshot, each time I check it with this tool it tells me there are errors, and doesn't seem to be able to fix them. Pocket Mechanic on the other hand tells me that my card is fine and that there are no errors.
Don't know which to believe.
hm...wes there any work with card between checks? if there were some write operations it could cause new errors.. if that util worked from sd card exspecially..
I have no other card to test it myself...but my seems to work fine..
while listening to music I had lockuos about every 5 minutes...it's gone..
now I am going to try installing some programs to card and more music and see what happens...
So I tried to add\remove some data from card - no errors appeared - and no lock ups still...
so now i think that formatting SD card clears only header of a card, and leaves some info on free space - which can cause such trouble when accessing new data....
Used StorageTools to reformat SD as FAT32, 2K cluster size
Downloaded TT5 maps and ran Scan with Repair option but still issues with TT 5.21 lockup!!
Tried with both 1Gb SanDisk Extreme III and 1Gb Transcend 80x
heh =|
btw, you all speak about tomtom lockup, do you have lockups when listening to music? because I never used tomtom - I just had problems with music....
I think the corrupted data on the cards is caused by momentary power losses which the card reader experiences (thanks to a fault in the Alpine hardware), if I remember past discussion on this forum correctly...
Also, is the Transcend SD card an MLC or SLC card? Because as far as I know, SLCs don't suffer from the data problems MLC cards suffer sometimes when used in Alpines.
Chris,
How can you find out if the Transcend SD is MLC or SLC ?
Would upgrading to a later ROM fix the problem?
If you search the forums for the threads discussing MLC Vs. SLC, I think you'll find out your answer.
Basically, I believe the only ways to tell if a card is SLC or MLC are to either have a program which will tell you (I don't know of one myself), or check the manufacturer's web site for technical information... Or ask someone who may know.
I don't believe upgrading the ROM will solve the problem, it's a hardware issue (the card readers are too sensitive to power fluctuations). It was previously assumed that the latest Transcend cards were immune from the problems with some other makes of SD card, but it seems from various user reports that they do indeed suffer - usually randomly - from similar problems.
Another user reported that after switching from SD cards to MMC cards, the problem was alleviated, and he went from experiencing quite a few lockups daily to absolutely no problems at all. Therefore, it may be worth your while sending back the Transcend card and buying an MMC (which you're quite entitled to do if you're a UK resident and you purchased the card recently from a UK retailer, thanks to the Distance Sale of Goods Act).
There are other posts related to the same subject:
http://forum.xda-developers.com/viewtopic.php?p=240871#240871
and
http://forum.xda-developers.com/viewtopic.php?t=39122&postdays=0&postorder=asc&start=25
Someone has reported last week, that moving from SD to MMC has cured his TT5 problems.
For people who bought their PDA through EXPANSYS, I encourage you to join this support poll:
http://www.expansys.com/forumthread.asp?code=121444&thread=35&man=QTEK
And for those who bought the QTEK version of this PDA, I encourage you to complain about the lack of any support on that product.
_________________
christopherwoods said:
Another user reported that after switching from SD cards to MMC cards, the problem was alleviated, and he went from experiencing quite a few lockups daily to absolutely no problems at all.
Click to expand...
Click to collapse
ericd91 said:
Someone has reported last week, that moving from SD to MMC has cured his TT5 problems.
Click to expand...
Click to collapse
We're on the same wavelength
I had a 1Gb Sandisk, I had to buy a Transcend 80x 1Gb, and know do you think we have to buy another card (MMC)!!!??
Please QTEK!!!! Solve IT!!!!
Well, if you can't return the item for a refund, you could always flog it on eBay.
christopherwoods said:
Well, if you can't return the item for a refund, you could always flog it on eBay.
Click to expand...
Click to collapse
I don't think the problem of TomTom lockups is caused by momentary power losses which the card reader experiences as stated by christopherwoods.
The card readers may be too sensitive to power fluctuations, but after doing the following testing, here is below the results I had:
1 - Transcend 2 Go SD card 150X (2Go) with QTEK 2020i using TOMTOM
5.21, but I took out the SIM card of my phone (so no more GSM signal)
I did not suffer any lockups with TOMTOM during many trips
2 - Transcend 2 Go SD card 150X (2Go) with QTEK 2020i using TOMTOM
5.21, but I put back the SIM card in my phone, and here are the
lockups back again.
I noticed that when my phone is searching for GSM signal (when moving from one cell to another, or in weak signal area), then it is precisly the time where TOMTOM lockup. Maybe it is when QTEK2020i search for GSM signal then there is power fluctuations on the card reader of the phone, which result with a lockup of TOMTOM or other applications (as stated by other people).
In this case, christopherwoods would be right.
Anyway, I have moved since more then one week to a Kingston 2Go MMC Plus Card, and I said goodbye to all the lockups problems, it works perfectly, and I'm very happy with my 2020i.
I can't say for sure, I've never experienced any problems like this on my 2i (but I have a fairly old 256mb SD card which JUST fits TT5 and the GB and NL plus maps, my largest SD card I use in my digital camera). All I mentioned in my previous post were things other people either took an educated guess at, or mentioned might be the cause of the problem. It seems that a fair few peoples' bug reports and diagnoses of their problems were quite similar though, which led me to believe that this is probably the cause.
It would fit, if the device needs to draw more power than available to boost the signal strength to handshake with a cell, I'd expect all the other interfaces to suffer as a result, the memory card unfortunately being particularly susceptible (especially with these newest, HUGE memory cards which I can only imagine are really sensitive to voltage change, being so tightly packed into the chip).
I don't think temporary power losses have anything to do with the problems we are facing.
TRANSCEND SD cards as most of FLASH cards assemblers work at 3.3V +/- 10 to 20%. For example the TRANSCEND 1GB x80 SL is given to work between 2.7V and 3.6V.
Also, the problems I have been having were the same with LEXAR 1GB x32 that used to be one of the reference cards for IPAQ2215, behaves the same way the TRANSCEND 1GB x80 does.
And TT5.21 freezes happen when the 2020i is plugged to the cigaret lighter adapter as well as being used on its onw battery.
A problem has been identified with TT5 when changing cell towers, and this might be still be the case even though TT5.21 was supposed to cure it.
I can reproduce the freezes 5min from home when entering a particular area, and changing cell tower migh have something to do with it.
When changing cell-phone tower I think it induces either higher data transfers between the radio module and the processor, or the opposite way keep it in hold for a pretty long time.
When looking at SD or MMC specs, I found out that several revisions of the MMC standard specifications have been released. So, I think the 2020i hardware or firmware version we are using, only supports a certain sets of this MMC/SD standards. The same issue was known on the IPAQ221x serie regarding BlueTooth.That PDA wasn't able to communicate properly with certain BT devices that implemented BT1.2 standard because of its hardware design. Also on that PDA certain SD cards weren't supported properly when running TT2 or 3. I found out at that time that running TT app & sound files out of RAM instead of SD was the cure to problems whatever SD card was used.
Unfortunatly, running TT5 and associated files out of SD or RAM doesn't change anything on the 2020i regarding freezes.
I think the problem is a hardware/firmware issue between cell-phone tower changes and SD card support.
Hope we'll figure out what the real issue is, and have a definitive fix for it.
So far, Bigdede's tip seems to be the one, unless other people than sybaseian have fix their problem when moving to newer ROM updates.
Hmm. Well, my old SD card is a PNY 256Mb, if that helps in diagnosis. I have the occasional problem with TT locking up if I try to load too many POI or display them on the map, you have to be patient with this SD card It's just got quite a slow access rate. That has to be one of the main reasons for this problem... Maybe the CPU just can't keep up with the fastest read/write rates of these new cards when it's having to think about loads of other stuff at the same time? Resulting in momentary data loss or corruption, just like WMP will sometimes stutter or crap out.
ericd91 said:
...I can reproduce the freezes 5min from home when entering a particular area, and changing cell tower migh have something to do with it...
Click to expand...
Click to collapse
The same for me I can reproduce this lockup it in a particular point. But only when I have additional pois activated.
(I have trascend 1Gb 80x)
Without these pois, it works perfectly.

Anyone has problems with 2 gig SD card in their 8125?

Everytime i insert my card it asks me if i want to format it to make it readable? - even though i formatted it in my computer. Also i cant write anything to it when my 8125 recognizes it in a slot. The cars is SanDisk so it should be a good quality.
I'm using a 2GB SanDisk card with no trouble at all. I _didn't_ format it on my PC but rather used it straight out of the box.
Do you still have the same message if you let the 8125 format the card?
i tried doing that and it says that the phone cannot recognize the card.... the weird thing is that the card goes in crooked and the fit isnt perfect i have to push it in hard.....
Quite a few people reporting a problem like this - seems to be fixed with sktools or storage tools (google them demos allow you to format - install on device) and format card on device to fat16.
meschle said:
Quite a few people reporting a problem like this - seems to be fixed with sktools or storage tools (google them demos allow you to format - install on device) and format card on device to fat16.
Click to expand...
Click to collapse
I have the same problem before, i tried to format it to fat16 and the 2gb minisd was recognized as 1gb instead of 2, tried every solution from getting compatible version of a card reader to re-format using fdisk via DOS., Called the manufacturer and they we're happy to replace it. They advised that it should be re-formatted as fat only and not fat16 via DOS using the card reader.
good to know as i just bought a 2gigger.
The problem is that you formatted it on your PC. USe SKtools to format it on your device and you should be all set. I think the demo version of SKtools allows you to do this stuff.
i use my 2 GIG since i bought the phone almost 4 months ago without any hassle.
Just used the card out of the box without formatting it.
This issue is reported several times and is caused by using a not compatible cardreader on the PC to format the card.
A lot of the (even usb 2.0!!) cardreaders is not capable of reading over 512MB memory cards. If you use a 1Gb or 2GB card on such a reader it will probably say the card is not formatted. WHEN you do format the card using that reader, you wil make it unusable.
:arrow: Make sure you format the card via a compatible cardreader to avoid this.
:arrow: If you get a 'card not formatted' message, try to read from / write to it in your device first (before attempting to format)
Just got my 2GB card....MDA won't read it.
Camera won't read it.
PC can read it. It was Fat32, I reformatted it to Fat...still a no go in the phone or camera, but works on the PC....what gives?
Just got my 2GB card....MDA won't read it.
Camera won't read it.
PC can read it. It was Fat32, I reformatted it to Fat...still a no go in the phone or camera, but works on the PC....what gives?
I have a SanDisk 2Gig card. It worked fine right out of the package. Haven't had any problems with any of the ROMs I've run on my 8125.
-Scott
my 2GB card works fine, except for the fact that it's stuck in there.. i need to tak it apart and fix the spring loaded latch somewhere in there..
I got a 2GB from Amazon: OEM 2GB MINISD Mini Secure Digital (SD) Card but it did not work on my Cing 8125.
TopRam
I have been using a 2GB miniSD made by TopRam. Works in the 8125 and with my USB card reader no problem since day one. 8125 recognizes the entire 2 gigs (well minus just a few bits...about 99% of the card). Got it off eBay while I was waiting for the phone in the mail. Never needed formatting or anything..worked straight from the package. I was a little worried at first that it wasn't one of the "well known" brands of cards, but there have been no problems whatsoever.
I'm using the Transcend 2Gb 80x MiniSD. Works like a charm.
Keep in mind that SLC flash chips (mainly made by Samsung and a.o. used by Transcend and Mobymemory) have longer lifetime, are faster and consume less power than MLC flash chips. Disadvantage is that SLC is more expensive. Bought my 2GB for approx 62 euros.

MicroSDHC card with corrupted filesystem?

Got A-Data 4gb card yesterday and it worked initially until it started to look strange when I was transferring big files unto it. Seems like I couldn't end the transfer and on it appeared a catalog named xxxxxxx.xxx. I disconneced tilt during this transfer and neither tilt no Dell 1420 with SDHC reader can see this card anymore. Nothing happens at all when I plug it in. I hoped that reformatting will work but Dell doesn't see card even in disk management tools (Vista). Regular size SDHC card is read by dell just fine.
Card hardware failure or filesystem problem? Thanks!
I have experienced this issue as well with both a 2GB and an 8 GB card. I have noticed the corruption mostly happens when I take the cards out to transfer big files using a USB reader. Do not touch the surfaces of the cards, handle them by the edges to minimize the risk of losing your data.
Thanks, I will remember that but if card is not seen as a drive by PC can I still return it to workable state?
You will likely have to format it with FAT32. Obviously your data will then be toast (but in all fairness it probably already is). If you can't format it then you need to google for memory card data rescue utilities. If none of these suggestions pan out, I would start the warranty procedures with the manufacturer to get it replaced.
Hope this helps!

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