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349 posts

Ultimate Geek
+1 received by user: 7

Topic # 159798 12-Dec-2014 23:01
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I just went into Noel Lemmings today and purchased a HUAWEI Ascend Y320 cell phone
They had it advertised as 4G storage and indeed the box says RAM 512 + ROM 4GB 

I turn on the phone and go to the storage settings and total storage is only 1GB
I install Airdroid and it shows internal storage Total is 1GB
Where does the 4GB ROM show?

I'm really annoyed because my last phone only had half a gig.


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583 posts

Ultimate Geek
+1 received by user: 47

  Reply # 1196671 13-Dec-2014 00:36
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There's quite a bit of weaselry that goes on when phone manufacturers talk about storage capacity. The number you're shown is the total amount of storage on the phone, including the space used/set aside for system files.

If you go into your phone's system settings, then under Storage, what storage areas are listed and what are their capacities?

I suspect you'll find that there are a couple of areas (excluding any microSD card you're using), and that their combined size comes to something like 2.5 - 3GB. It used to be fairly common that a chunk of space would be set aside for apps and user data, and another chunk of space for the "internal SD card" for storing photos, music, etc. The remainder was used for system files.

However the space is allocated, it's fairly certain that your phone does actually have 4GB of storage space. They're legally not allowed to lie about that part. It's just that only part of that 4GB is available for you to use.

349 posts

Ultimate Geek
+1 received by user: 7

  Reply # 1196784 13-Dec-2014 11:54
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Thanks for your reply.


I go – settings – storage – Then the next window shows


- Default write disk


- Phone storage (blue dot next to it) you can’t actually click into that field


 - Internal storage (as a main heading) – bar strip and just less than a quarter used


     - Total space (as a heading) – 1.00GB


              - Available – 748MB


              - Apps (App data & media…) 235MB


              - Cached data – 6.75MB




Phone storage (as a main heading)


       - Total Space 1.22GB


             Available 1.22GB


             Apps (app data etc) 1.81 MB


             Pictures, videos 192kb


            Audio (music, ringtones) 272KB


            Downloads 32.00KB


           Cached data 160KB

Which part is the 4GB ROM

There is no SD or SIM card installed





583 posts

Ultimate Geek
+1 received by user: 47

  Reply # 1196908 13-Dec-2014 15:35
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Internal storage
- Total space - 1.00GB
- Available - 748MB
- Apps (App data & media) - 235MB
- Cached data - 6.75MB

Phone storage
- Total Space - 1.22GB
- Available - 1.22GB
- Apps (app data etc) - 1.81 MB
- Pictures, videos - 192kb
- Audio (music, ringtones) - 272KB
- Downloads - 32.00KB
- Cached data - 160KB

Ok, it does look like your phone is laid out the way I thought it was. Here is how your 4GB has been eaten up.

First up, there's the industry-standard way that is used to state the capacity of storage devices. The capacity is started in decimal GB (1GB = 10^9 = 1,000,000,000 bytes), while practically everything else is measured in binary GB (1GB = 2^24 = 1,073,741,824 bytes). Binary GB can also be written as GiB, which I'll use here.

Once you take into account the overheads that come with any file system, you only end up with about 3.7GiB usable.

Now, looking at the bit I've quoted above, there are 2 separate areas where the phone stores your data. Internal Storage is 1.0GiB, and is used for your apps and settings. Phone Storage is about 1.2GiB, and is used for photos, videos and music. If you take these away from the 3.7GiB available, that leaves about 1.5GiB.

That remaining 1.5GiB is sucked up by space allocated for system files. These files include the bootloader, kernel, recovery, core OS, (typically) all included applications, and pre-optimizations files. It's very possible that a big chunk of this space is also unused, set aside for future expansion or to accommodate apps that overseas phone companies might want to include.

So in summary:
- 1.5GiB for the system
- 1.0GiB for user data: apps and data
- 1.2GiB for user data : photos, videos and music
- 0.3GiB lost due to filesystem overheads and GB GiB conversions
Total: 4.0GiB

And this is not limited to just your phone. My 16GB S4 has 9.74GiB free for all forms of user data. My work-provided 16GB iPhone 5C has 12.7GiB space available for all forms of user data. No matter what type of phone you buy, you never get the full advertised capacity for use.

349 posts

Ultimate Geek
+1 received by user: 7

  Reply # 1197084 13-Dec-2014 22:13
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Thanks I appreciate your detailed reply.
I'll keep the phone.
Its still got double the available space than my old phone had and I only paid $75.00 for it on special.

I rung two degrees as I am already on an open plan, I found out that if I down grade to the $30.00 plan instead of $40.00 each month I won't actually loose anything as I have carry over data each month.
In 7 months that saving would have paid for the phone.
Thats something and its processor is dual core.
It works fine.


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