Archive for the 'S3/GT-I9300' Category


The Galaxy S3 faults and problems

I’ve had the Samsung Galaxy S3 now for a few months and am somewhat satisfied with it. Even more since I previously was using that XT300(and still am as a secondary phone) which is far from the leading phones.

So, as I said, I somewhat satisfied. The 4.1 update was nice; project butter, the more complex notifications and Google Now are interesting features which make Android a better OS.

The problem is that with new features there are always unexpected/undocumented/unwanted features, aka. Bugs. One of the most annoying is that now it takes a while to wake the phone, pressing home or power, a few seconds, just to make one of the strongest phones in the market appear to lag. Also now when waking up the phone with the home button, it actually does go to home, forcing you to go to the app that was in foreground at the time once more.

Since the last update the phone has been freezing and rebooting automatically more than I’d like, I’m thinking of wiping the phone and seeing if the problems continue. Starting of having thoughts of flashing another rom. I don’t really want that since new problems normally come up, like instability, bad hardware support(slow video playback, camera stops working and such problems) and recurrent rom changes until I finally find one that works more or less.

I’ve been having problems with my SanDisk 32GB Class 10 U1 microSDHC card, which was slowly dying on me. It started with my netbook (Asus Eee PC 1005HA) having problems writing to it (I/O problem with something about cluster chain). On the phone it worked fine for a while but I started noticing that the card kept remounting (notification icon flashing) whenever I woke the phone. After a while it started claiming that I had a blank card and would not mount.

My computer displayed only sdb and not sdb1, fdisk and mount complained that /dev/sdb had no medium.

Keeping it off for a few days and plugging the card back in fixed the problem for a few hours, after that the same problem occurred.

I’m currently in contact with SanDisk support and seems I will get replaced, perhaps. I bought the thing on eBay  from a reputable seller, but you know… they say EVERY memory chip on eBay is counterfeit.. hehehe.

I’m using a 1 GB just for kicks that I had lying around and the remounting problem does not occur with it. Hopefully it doesn’t die on me also.

I found an interesting post regarding a similar issue. I do not know if it is really true or not, and probably will void your warranty..

XDA:”SD Card Unexpectedly Removed” hardware issue solved

Other than that, I still have a few rants complaints about the casing and screen. I keep my phone almost always in my pocket and on the table. I hate those protective screens and cases. The make the phone bulgier and the touch screen gets a plastic feeling. Unfortunately the back cover of my phone has already a lot of small scratches which make a few spots already seem dull, instead of the reflective “pebble blue”. Around the headphone jack there are bits chipping off. And, of course, GorillaGlass 2 is not up to it’s name. There is already a small nick on the screen.

There is one thing that surprised me a lot in this phone. The GPS. It’s one thing I can’t complain about. Together with GLONASS, the lock on is very fast and works (somewhat) indoors too!

Here is a comparison of the Galaxy S2 and a Galaxy S3:

S2 vs S3

S3 on the left and S2 on the right

It’s not that I regret having paid a lot of money for the phone ( about $900 at the time), tough I’d thought I’d have a better experience with it.

Maybe next time I’ll learn and buy an iPhone 😛 not a chance!

That’s it for my rants… I have to get back to posting useful guides/texts.


Galaxy S3 access files in Linux

I’ve gotten myself a Samsung Galaxy S3 recently, and wanted to change the ringtones and upload some music.

The problem is, I use mainly linux (read: ‘I don’t have Windows’).

So what with the MTP/PTP?

Apparently libmtp and jmtpfs don’t work with the S3 very well. The error is something like:

$ mtp-detect
libmtp version: 1.1.3

Listing raw device(s)
Device 0 (VID=04e8 and PID=6860) is a Samsung GT-P7310/P7510/N7000/I9100/Galaxy Tab 7.7/10.1/S2/Nexus/Note.
Found 1 device(s):
Samsung: GT-P7310/P7510/N7000/I9100/Galaxy Tab 7.7/10.1/S2/Nexus/Note (04e8:6860) @ bus 2, dev 21
Attempting to connect device(s)
PTP_ERROR_IO: failed to open session, trying again after resetting USB interface
LIBMTP libusb: Attempt to reset device
LIBMTP PANIC: failed to open session on second attempt
Unable to open raw device 0

And since Kies is not available for linux (afaik) and running it on Wine is not really something I’m fond of, I had been searching for a way to access the phones files in a fast way.

There is a way, through rooting your phone, and installing an app, but my phone is new so I didn’t want that…yet 😀

Since the access would have to be fast to be of my liking, it would have to be through USB cable, not Wifi. So I would probably have to do sth with ADB (Android Debug Bridge, google it)..

There is an adbfs solution already there:

But it seems to be extremely slow. Adb was NOT designed for this kind of usage (continuous I/O access).

So I went on using an app I already knew, SSHDroid:

But doesn’t this create a SSH server for remote shell login? Yeah, kinda does… but it’s SSH! This means you can run SSHFS through it! And better, forward the listening port through ADB to your own machine, via USB cable, so no Wifi is needed.

Here are the steps:
1. Install SSHDroid and run it
2. With the phone connected via USB, test adb with

$adb devices

and see if it shows up
3. Forward the remote SSHDroid port to your machine with

$adb forward tcp:2222 tcp:2222

(2222 is the default SSHDroid port for none rooted phones)
4. Mount sshfs on your machine with:

$sshfs -p 2222 root@localhost:/mnt/ >mount point, like ~/Desktop/sshfs<

The default password should be admin, if you haven’t changed it. YOU SHOULD HAVE!
5. Done! On my Arch, nautilus did not want to unmount it, so I ran

$fusermount -u <mount point, like ~/Desktop/sshfs>

As always, don’t trust what I tell you to do, just some guidelines to be able to find a similar, if not the same, solution. Have in mind that the steps here are not idiot-proof, I expect that people at least be able to use google and the basics of linux, like installing sshfs.

UPDATE (2013-04-12):
I decided to try again using the S3 with MTP and installed go-mtpfs on Arch.

After adding me as owner to udev rule, it seems to work but has some bugs:

$ touch test
touch: failed to close ‘test’: Invalid argument

but the file shows up:

$ ls
BKP clockworkmod data DCIM Downloads LOST.DIR MOV07784.MPG Roms test Tools

$ cat test
cat: test: Invalid argument

removing it works fine…

mtpfs still doesn’t work… either with

$ mtfps ~/s3/


# mtfps -o allow_other /home/oliver/s3/

Just does nothing.

simple-mtfps seems to work fine, will test it further! (available in AUR from Arch or

Showing the devices:

$ simple-mtpfs -l
Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).
Unable to open ~/.mtpz-data for reading, MTPZ disabled.1: SamsungGalaxy models (MTP)


$ simple-mtpfs –device 1 s3/
Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).

Unmounting (obvious):

$ fusermount -u /home/oliver/s3

It is recomended not running simple-mtfps as root, as always… but nice that it doesn’t need to run as root 😀

Touching, displaying and removing files from both Phone and Card directories worked flawlessly.
Though I did not do a stress test on this method. Will try to pass some gigs later 😀

Seems jmtpfs is working too! Some time that I haven’t tried it. Another solution, I prefer simple-mtpfs though for more options, listing and specifying the device to be mounted.

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