06-02-2007, 05:19 AM
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Join Date: 01-13-2006
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Location: New Jersey
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PDAPhone: Samsung SCH-i730
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Carrier: Verizon Wireless
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Headset: Motorolla H700, BTA 820
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What I am saying is that as things are right now the hardware MUST overwrite old data to continue if the hardware is, in fact, within SD1.0 compliance. The fact that it lets him at all is likely a firmware bug, but a bug won't allow real usage of anything over 4GB, it will just pull the overwriting files crap and then tell you it's not really doing that.
I guarantee that the person with the "working" card is having this problem and just doesn't realize it yet.
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Ok so Techmillion is being tricked into believing it's reading and writing 8GBs of data when it really is doing less than 4GBs and recycling crapy info.
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The only alternative explanation is that someone, somewhere, decided to make 8GB standard SD cards with 2byte allocation and is selling them without any branding on them anywhere. Note in the pictures how it uses the SD trademark, not the SDHC mark. Look here SD Association The cards that guy is selling are not only non-compliant but most likely rather buggy, which would explain the fluke of it "working" at all.
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I and several other have this non compliant SD Card and it doesn't work for us..but I guess it doesn't really help anyone is what you're saying..It can't work over 4 GB.
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To make this work correctly you will have to rewrite the firmware in the SD reader itself, requiring you to burn a new ROM chip for it to use and solder the new one into place. That is assuming they are in fact pin compatible.
If you were willing to go through that trouble, it would in fact be easier to find a pin compatible SDHC reader and swap with the SD in the device already there... and just rip the driver for the new reader from whatever device you take it out of.
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You know what would be cool, is if someone made an SD Adapter to be able to universally make SDHC complaint to any device that uses SD..like a Micro SD Adapter that can allow you to read though I wonder how fast people behind SDHC would sue. I wouldn't mind doing this as I believe I will be with this device for a while now but I haven't a clue on how to do this.
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In any case, I want anyone who purchased a non-working SDHC card to try something for me. Repartition the card on your computer so that there is just one partition, and make the partition 3.72GB in size. 3.72GB exactly. Format the new partition, then try it again to see if it works in the i730 slot. This will possibly say whether the hardware itself is capable of reading an SDHC card at all (though it will most likely still fail due to overall drive size being registered).
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I would try this with my 8GB SD Card, but I can't seem to figure out how to select what capacity I want for a partition let alone find a way to partition it in any sense. If someone can direct me on how to do it I'd appreciate it.
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The way that companies market their material is that most mean 4 billion bytes when they write 4 gigabytes, which is a vastly different number. 4 biillion bytes (4,000,000,000 bytes) is only 3.72 GB, whereas a true 4GB card would be 4,294,967,296 bytes (hard drive companies do this all the time, selling 187 GB drives with the label "200GB"... which means for every 500GB of drive you actually lose ~32GB, the bastards)
Now then, you mention people hacking kernels and firmware to use SDHC cards in non-HC slots, can you show me to one of those projects so that I don't have to spend the time looking? (I am, at the moment, trying to see how hard it would be to make a Windows CE 6 image for my phone, so I don't feel like googling around while I'm working on this
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Some of these I can't make heads or tails of it, and I may be mixing some posts with other ones, but I am on like page 19 of google searching for "How to Partition SDHC"..
How to flash the SDHC kernel w/out connecting to a computer - Internet Tablet Talk
I believe on this thread someone somewhere mentions being able to use a patriotmemory SDHC card without any tweaking..
n800, SD, SDHC, and storage - Page 2 - Internet Tablet Talk Forums
This one has people making and manipulating parts to get things working:
Parallax Forums
If you do a search for Treo SDHC hack or something along those lines you will see several different ways they have gotten SDHC working on their devices..old and new. One of the ways they get it done is to put a FileZ driver on their device..other patch it some other way..I've seen at least 3 different ways to get it done.
If someone could let me know how to partition my 8GB SD Card I can let you know if what you suggested we try works. Thanks for adding some new info on this. I can say I'm sure I'm not the only one who would want this to work. Thanks.
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