Develop Bugs

New MicroSD Card Question

Hey guy's I recently purchased a 8 GB MicroSD card and I got it in the mail today, so before putting it in my phone I put it on my computer and it doesn't read 8 GB it reads 7.59 GB. Why is this?

Capactities will never be exact. That is true of flash drives, hard drives etc. My iPod is theoretically 80GB but is actually only 76. Annoying...but that's just how it is

http://www.technical-assistance.co.uk/kb/hddsize.php
same thing really it's been the case for eons

sd cards
well they are true about how they always vary in capacity for posted size but for hardrives it usually actually is withing a couple percent, where as flash being very unstable memory can come with no memory lol, but also some of the memory is take up by foratting the device to work with operating systems and able to hold files and everything

That's because drive manufacturers measure like this:
1MB = 1000KB
1GB = 1000MB
And operating systems measure like this (the correct way):
1MB = 1024KB
1GB = 1024MB
So the card you bought has 8,000,000KB. The manufacturer claims that's 8GB. Windows sees it as...
8,000,000KB / 1024KB per MB /1024MB per GB = 7.629GB
Then a little bit of space is used for formatting, which leaves us with 7.59GB.

yeap!!
gtg465x said:
That's because drive manufacturers measure like this:
1MB = 1000KB
1GB = 1000MB
And operating systems measure like this (the correct way):
1MB = 1024KB
1GB = 1024MB
So the card you bought has 8,000,000KB. The manufacturer claims that's 8GB. Windows sees it as...
8,000,000KB / 1024KB per MB /1024MB per GB = 7.629GB
Then a little bit of space is used for formatting, which leaves us with 7.59GB.
Click to expand...
Click to collapse
Must of user needs to know how sizes arent exacts! just think about why it arent memoryes for 200MB over 256 or 32 not 30MB

A question for Proffesional ROM builders about the SD Memory

I'm currently using a TP2 and I don't have enough RAM. Part of the reason and I know it's my fault is the customization of the phone with different toys and apps. This is my fault not the phone. So far the phone is working flawlessly.
What I have is over a gig and a half of a 2 gig memory card in my phone completely free. What I would like to do is use the spare memory as RAM, allowing the phone all the necessary space it needs.
If I keep going on this thought, would rebuilding the OS with the sd card as the primary install location work as well. This would give us gigs of space to install and gigs or RAM to work with esp if you have a 6 or 8 gig sd card.
Any thoughts?

slight22 said:
I'm currently using a TP2 and I don't have enough RAM. Part of the reason and I know it's my fault is the customization of the phone with different toys and apps. This is my fault not the phone. So far the phone is working flawlessly.
What I have is over a gig and a half of a 2 gig memory card in my phone completely free. What I would like to do is use the spare memory as RAM, allowing the phone all the necessary space it needs.
If I keep going on this thought, would rebuilding the OS with the sd card as the primary install location work as well. This would give us gigs of space to install and gigs or RAM to work with esp if you have a 6 or 8 gig sd card.
Any thoughts?
Click to expand...
Click to collapse
You can't (as the end-user) use a storage card as Virtual RAM.
However, I believe that WinMo 6.5 does allow for virtual RAM to be used through the internal storage, but that will require you cooking the ROM yourself, etc. I've never messed around with that though, since the device I cooked for didn't have a native nk.exe. The TP2 does, however, so you can experiment away.
And remember, RAM = Program Memory, the space where currently running programs temporarily store their information for quick read access (Random Access Module).
Don't confuse it with Storage Space, which is where data is permanently stored. I think you understand the difference.

Thank you for the benefit of the doubt lol. Yes I do understand the difference thats why i was thinking if the SD memory could in essence be used to build the OS, because it is no different that the ROM in the sole exception that it's easier to remove.
But also in that same sense (and this might be a stretch) Vista is capable of using a removable memory stick as virtual ram to speed up your PC's functionality. If that is possible there, and you've got a 8 gig SD card in your phone, splitting it off for virtual RAM is hopefully possible.
Maybe even think of it this was. 9 gig SD card, almost like partitioning a hard drive. 3 setup for virtual RAM, 3 setup as storage, 3 setup for ROM access to load the OS.
Or am i thinking WAY to far outside the box of possibilities?

slight22 said:
Thank you for the benefit of the doubt lol. Yes I do understand the difference thats why i was thinking if the SD memory could in essence be used to build the OS, because it is no different that the ROM in the sole exception that it's easier to remove.
But also in that same sense (and this might be a stretch) Vista is capable of using a removable memory stick as virtual ram to speed up your PC's functionality. If that is possible there, and you've got a 8 gig SD card in your phone, splitting it off for virtual RAM is hopefully possible.
Maybe even think of it this was. 9 gig SD card, almost like partitioning a hard drive. 3 setup for virtual RAM, 3 setup as storage, 3 setup for ROM access to load the OS.
Or am i thinking WAY to far outside the box of possibilities?
Click to expand...
Click to collapse
Eh, this thread (http://forum.xda-developers.com/showthread.php?t=544445) will have all and enough information for you
Post 2 discusses Virtual Memory. Yea, I don't know what all that mumbo-jumbo means, since I never cooked for one of the newer, nk.exe WM6.5 compatible devices. But you'll find all the info on the new WM6.5 ROM's and cooking it, etc, on that thread. Enjoy the hefty reading!

[Q] Storage space?

I got my (allegedly) 16GB Note 2 on Saturday and installed loads of stuff, including some pretty big Gameloft games. When I go into Storage from the Settings it says that my device memory has total space of 10.36GB with 2.98GB of it left. The fact that 7.38Gb is used up is probably about right given all the large games I've got on there, but why is the total space only reporting as 10.36GB when it's a 16GB model I bought? I'd expect some space to be used up by the OS itself and the various protected system partitions that come with it obviously, but does Jellybean really consume the GBs of space that make the difference between the 10.36GB reported and the 16GB that should be on there?
I used a disk info app to see what was going on and have attached a screenshot of it's output. I'm not sure what the difference is between the Data and SD card partitions there. Note that I do have a proper external SD card in the phone but it's only 2GB and so isn't any of those partitions. Anyone know what I'm seeing here and where my 16GB has gone?

Yes, this is the available amount of of space you get in this phone.
Its not just this phone! Any phone you get from market will have less user-available storage.
One X is said to be 32 gb but you can use only 25 gb
Here is a mod whoch can increase your space to around a bit above 11 gb http://forum.xda-developers.com/showthread.php?t=1931500
Any 16 gb phone made has around this much user available space rest is OS and other stuff.
HINT: buy a 32 gb memory card? it will replace your internal memory card need exactl as if it was internal memory storage.
How? You can transfer all apps to SD Card using titanium backup so your phone memory and SD card memory is basically unified.

Read this: http://compreviews.about.com/od/storage/a/ActualHDSizes.htm
Partitions of the SGS III (I assume pretty much the same in Note II):
/system: 1G
/data: 11G (shared with /sdcard)
/cache: 1G
Add to this space required by OS and installed apps.

Kiahnlliya said:
Partitions of the SGS III (I assume pretty much the same in Note II):
/system: 1G
/data: 11G (shared with /sdcard)
/cache: 1G
Add to this space required by OS and installed apps.
Click to expand...
Click to collapse
The 'Advertised vs actual' factor as described in that article would take just over 1GB away from a 16GB start (70.3 MB x 16 = 1.12GB).
Adding in the Cache, System and Data/SD Card values from my screenshot would take us up to 13-and-a-bit GB. (1.12 GB + 1GB + 1GB + 10GB = 13.12GB)
The System partition hold the OS and any other baked in stuff (as I understand it) so where's the other 2-and-a-bit GB?
I'm sure it's all explainable so I'm just curious to know how this works. I thought I remembered having more free space on my previous Note and the GSII before it (both of which were advertised as 16GB) but perhaps I'm misremembering.

Medulla said:
The 'Advertised vs actual' factor as described in that article would take just over 1GB away from a 16GB start (70.3 MB x 16 = 1.12GB).
Adding in the Cache, System and Data/SD Card values from my screenshot would take us up to 13-and-a-bit GB. (1.12 GB + 1GB + 1GB + 10GB = 13.12GB)
The System partition hold the OS and any other baked in stuff (as I understand it) so where's the other 2-and-a-bit GB?
I'm sure it's all explainable so I'm just curious to know how this works. I thought I remembered having more free space on my previous Note and the GSII before it (both of which were advertised as 16GB) but perhaps I'm misremembering.
Click to expand...
Click to collapse
It would be interesting to get a clear answer for sure... I have a 64GB SDXC with 30GB free space on it and I can't think of anything else I would need that isn't already on there, I couldn't fill it up even if I tried. Also I still have 8GB free on my internal...
I don't listen to music on my phone, I have a dedicated player for that, so that's why I don't need tons of space... and that's why I don't really reflect on these things, but am a bit curious indeed about why the available space is so much less than 16GB.

Kiahnlliya said:
It would be interesting to get a clear answer for sure... I have a 64GB SDXC with 30GB free space on it and I can't think of anything else I would need that isn't already on there, I couldn't fill it up even if I tried. Also I still have 8GB free on my internal...
I don't listen to music on my phone, I have a dedicated player for that, so that's why I don't need tons of space... and that's why I don't really reflect on these things, but am a bit curious indeed about why the available space is so much less than 16GB.
Click to expand...
Click to collapse
My usage is pretty much the same as yours (external SD card with a few things on it and separate dedicated mp3 player) so it's not something I'd usually notice either. The only reason I've clocked it this time is because I bought a few GB and bigger sized games in the recent 25p Google Play store all of which I've installed as soon as I set the phone up on Saturday; whereas usually I'd install one 'proper' game and only install a new one when I'd finished the last one. So, as such, this is probably about as full as my phone will ever be and not something that'll cause any problems, but it would be good to understand what's going on here.

[Q] Galaxy S3 RAM Memory

I have the Galaxy S3 SGH-L710 (Virgin Mobile)
I used the CPU-Z app to view the hardware info.
CPU-Z reported that my Ram memory is 1.57 GB (1579 MB)
This model phone is suppose to have 2 GB of memory.
Just wandering if it's an indication of bad memory, or a software glitch or if it's something else.
Can anyone with same model post here and let me know what you get.
See if you have same reading as me. Thanks.

I believe some RAM is allocated to system files on boot so that the phone can start up. Also, the amount of physical space on a chip is different than the space a system can use. For instance any flash drive you get that is advertised as having 16 GB of space, actually has about ~14-15 GB, because they say that it has 1.6 billion bytes (or whatever the number is), but there are 1024 kb in 1 MB, and 1024 MB in 1 GB, plus the space needed for driver files lowers the total amount of space available to what you see. So all of that is probably what amounts to what you're seeing, I'm not an expert nor am I a developer, but I've looked into these things a bit.
Plus, you could just google search "why is my phone's ram less than it's supposed to be" and get a clearer answer!

Thanks for your response. That explains things.

Question S22 128GB - how much free strorage is on new phone and how long 4K movie it can take?

Hello,
I wonder what version to buy - 128 or 256 GB, more is better, I know, but budget is not flexible ;-)
Is 128GB ok if I am going to get about 2 hours of 4K movie?
Will filling the storage with data make the phone slow?
Greetings!

Neither. 128gb isn't much space. 256 isn't either especially with no expandable storage.
Leaves no room for growth.
Not having a SD card slot is a major liability and wastes your time, battery and makes reloading much slower and difficult.

Thanks for the answer and for your time, although it is quite possible that this was a bit of a wasted time as there are no references to the questions of my post. But perhaps my question has not been very precise. Well, my point is that someone who has the phone model mentioned in the topic, wrote how much really free memory is available for data storage (because the system usually takes part of the pool).
The second question concerned the requirements of 4K movies, theoretically it is 70 Mbps, i.e. about 30 GB per hour of movie, which theoretically gives over 3 hours of recording on this phone (depends on the answer of previous question). It's even too much for me, especially since you can rip everything to the cloud at the end of the day. Nevertheless, the opinion of a practitioner would be very valuable to me.
Regards!

You'll suck up 128gb before you know it not including 4k recordings. With a relatively light load I'm using at least 60gb* of internal on my N10+. The lowest I would go is 256gb. That's not all that much.
Something with a SD card slot would work better. A V30 rated card can stream 4k vids.
*critical data, media, docs aren't on internal memory; the 60gb initially is just apps, DCIM and download folders. It quickly increases in size from there though.

Well... N10+ is not I am asking about...
Please, anybody with S22 kindly to check?

If anything scoped storage based apps will require more memory than my non scoped storage ones. You will be running mandatory scoped storage. I run Android 9 and 10, no scoped storage. So there's that.
128gb be cutting it tight... you want to have at least 20gb free at all times. Otherwise you'll end up playing stupid games.