Ok, been fighting with my G1 phone for over a month.
First it was the phone shutting down because the battery life was a whopping 5mins of any use. That was killing the OS, so kept having to reinstall.
Now that I got a replacement battery, it seems that something is causing my 8GB MicroSD card to stay 'read only' when I plug it into my usb-flash reader on my Ubuntu system.
I severely need to reformat my whole phone and start fresh but seem to be kinda screwed at the moment because of this damn card issue.
I have scoured the web and it seems this is some sort of stupidly common problem and I am just stunned at the sheer lack of solutions that work.
So, I am hoping that someone here can help and direct me to have a decent phone once again and not feel totally worthless and ashamed when I tell people I am a tech but can't fix my own damn phone.....
30 year-old trick does that job!
http://www.camerahacker.com/Forums/DisplayComments.php?file=Storage/memory_card_locked.html
This is just a guess, but I remember back when I was using linux (Gentoo or Ubuntu I think) FAT32 partitions were mounted read only, it was a limitation of the OS. I remember the documentation saying it was possible to mount it read/write but strongly discouraged.
This was a long time ago though, and to be honest I'm not sure if it was a FAT32 or NTFS partition that I had that problem with.
That's NTFS. Hasn't been any problem writing to FAT32 in a looooooooooong time. Also it has been safe to write to NTFS for some years now.
Are you using a MicroSD to SD adapter? There's a little switch on all SD cards making them read-only. Flip it and you should be good to go.
EDIT: Just saw you just noticed it
Actually wasn't a switch. A poorly designed adapter that broke at some point where the 'switch' is supposed to be. Cheap plastic.
does anyone know the max sd card transfer speed of the pad, and the dock?
i am looking at a 128GB SDXC card (yes, its a lot, but this is replacing a dead laptop for the foreseeable future) , UHS-1 60mb/s, or a 45mb/s one. will the UHS card actually have any benefits in the dock, or simply when transfering data to it from the PC.
many thanks!
I'm currently running a Class 10 (200x) 32 GB SDHC in the dock, branded Dane-Elec. Runs fine. I don't know if it takes 32+ GB cards, though... And to be honest, while heavily dependent on what you actually do with it, for most purposes a high-speed card should suffice...
ishamm said:
does anyone know the max sd card transfer speed of the pad, and the dock?
i am looking at a 128GB SDXC card (yes, its a lot, but this is replacing a dead laptop for the foreseeable future) , UHS-1 60mb/s, or a 45mb/s one. will the UHS card actually have any benefits in the dock, or simply when transfering data to it from the PC.
many thanks!
Click to expand...
Click to collapse
I'm currently using two Sandisk cards:
- microSD class 10 30MBps SDHC Ultra (16GB)
- full SD class 10 SDHC Extreme 45MBps in the docking station (32GB)
They get better speeds than the built-in disk, but it is still not great. It seems to be about 15-18Mbps write for SD, 6Mbps write for microSD and 30-32Mbps read for both (as compared to 12/18 of the internal memory).
The fastest way of moving data still seems to be external USB HDD...
Hope this helps, haven't tried any other yet. I have tried both FAT32 and NTFS though. They seem to give similar results (I had no problems using NTFS on my SD card so far, which is a good sign).
d14b0ll0s said:
I'm currently using two Sandisk cards:
- microSD class 10 30MBps SDHC Ultra (16GB)
- full SD class 10 SDHC Extreme 45MBps in the docking station (32GB)
They get better speeds than the built-in disk, but it is still not great. It seems to be about 15-18Mbps write for SD, 6Mbps write for microSD and 30-32Mbps read for both (as compared to 12/18 of the internal memory).
The fastest way of moving data still seems to be external USB HDD...
Hope this helps, haven't tried any other yet. I have tried both FAT32 and NTFS though. They seem to give similar results (I had no problems using NTFS on my SD card so far, which is a good sign).
Click to expand...
Click to collapse
I haven't used an external drive yet, but I agree with the observation that the transfer speed is not optimal, no matter what card I plug in (I have transplanted a few I normally use in my DSLR just for testing; they are all fast cards, as you can imagine). I transferred several documentaries and a lot of photographs yesterday evening and it took ages, mainly due to the fact that the transfer process hangs up the entire device (!) regularly. It seems to happen after about 70 to 80 MB are read into (temporary?) memory and apparently are only then buffered out to the main storage. Let's hope a custom ROM can straighten this issue out...
Thanks. Given these figures, would you install apps on the main memory, if a 30mbps rated micro sd for best performance?
Sent from my LT26i using xda premium
ishamm said:
Thanks. Given these figures, would you install apps on the main memory, if a 30mbps rated micro sd for best performance?
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
In my case internal memory is faster than microSD. You don't really have the option, unless you play with the filesystem and mount your MicroSD on /mnt/sdcard instead of /Removable/MicroSD. In the Infinity /mnt/sdcard is just a folder within the internal memory by default (many apps use it though, so they had to arrange it this way). I don't think there is any reason to change this, as internal memory seems faster and that's whole 64GB of it (OK, maybe 56 available, but still a lot..).
Perfect thanks, I thought though that there were current issues with I/O speeds until someone could fix it in a Rom. Or has this been addressed in the new firmware?
Sent from my LT26i using xda premium
ishamm said:
Perfect thanks, I thought though that there were current issues with I/O speeds until someone could fix it in a Rom. Or has this been addressed in the new firmware?
Click to expand...
Click to collapse
Hopefully I could tell you in a few days, but honestly I don't think it has (can't try it out yet, as the firmware released is Taiwanese version, and I'm on the World-Wide).
The Infinity is not that far behind other new tablets or rather it's not only TF700's problem, see http://forum.xda-developers.com/showpost.php?p=28416635&postcount=2842
However, after changing the scheduler to sio and doing some tweaks (see my post on it: http://forum.xda-developers.com/showthread.php?t=1758160), it's running pretty smoothly (unless you want to do a lot of CPU-heavy jobs while having huge reads or writes in the background, in this case it can get frustrating, but.. there is no real alternative these days).
d14b0ll0s said:
Hopefully I could tell you in a few days, but honestly I don't think it has (can't try it out yet, as the firmware released is Taiwanese version, and I'm on the World-Wide).
The Infinity is not that far behind other new tablets or rather it's not only TF700's problem, see http://forum.xda-developers.com/showpost.php?p=28416635&postcount=2842
However, after changing the scheduler to sio and doing some tweaks (see my post on it: http://forum.xda-developers.com/showthread.php?t=1758160), it's running pretty smoothly (unless you want to do a lot of CPU-heavy jobs while having huge reads or writes in the background, in this case it can get frustrating, but.. there is no real alternative these days).
Click to expand...
Click to collapse
This. As i've ranted earlier, the new firmware provides fixes for camera issues, not for the I/O the TF700 so obviously suffers from. Having said that, it is not like the tablet in itself is useless as it is -- far from it -- but remains a mystery to me why they didn't spot this in advance (like with the Prime's issues with GPS and wifi), It seems like ASUS develops a device by letting several teams work onindividual components, and, when they get their specific part up and running, just put it together and relese it. I have a distinct feeling that neither device was actually and properly tested.
But, still, I'm pretty happy with the device overall.
I think you need to read this thread:
http://forum.xda-developers.com/showthread.php?t=1767755
From what I see my UHS-1 card that doesn't work is initialized as DDR which means the max speed for the TF700T µSD is 50 MB/s (as that is the only DDR speed).
The full size SD socket uses a USB host so the big question is is it USB 2.0 or 3.0!
All specifications says USB 2.0 for the dock, so I would assume that's correct, even for the TF700 dock.
Asus has finally responded that there is limited UHS-1 support in the µSD slot.
For now you are better off not trying UHS-1 in there. The may come up with a patch...
external memory limits
ishamm said:
does anyone know the max sd card transfer speed of the pad, and the dock?
i am looking at a 128GB SDXC card (yes, its a lot, but this is replacing a dead laptop for the foreseeable future) , UHS-1 60mb/s, or a 45mb/s one. will the UHS card actually have any benefits in the dock, or simply when transfering data to it from the PC.
many thanks!
Click to expand...
Click to collapse
Careful there with a 128gig card, I read somewhere that there is a 32 gig upperlimit on recognizing cards and sticks...
tho I do wonder if you formatted it into enough partitions it might read them all?
kokoPedli said:
Careful there with a 128gig card, I read somewhere that there is a 32 gig upperlimit on recognizing cards and sticks...
tho I do wonder if you formatted it into enough partitions it might read them all?
Click to expand...
Click to collapse
If the dock uses a sdhc compatible controller and simply exposes the card as a mass storage device for the system, then there is really no such limit. The SDXC cards which supports >32GB does so due to the SD's FAT specification not for actual addressing and such.
SDXC cards are accessible as SDHC but standard specifies ExFat as default filesystem. This may not work on units not compatible with ExFat, but a reformat will fix that. In the TF700T's case we have already seen users use 64 GB cards breaking that 32GB barrier.
We have also seen the TF700T mount ExFat, although it seems to fallback to NTFS.
The thing he should be carefull of is UHS in the µSD socket as it's still wonky.
In the dock I suspect a UHS card will simply be treated as a normal SDHC card, but UHS cards usually have better class speeds so may be a benefit even with the dock doing USB2.0 hosting.
Edit:
To back up my claims see here...
http://kb.sandisk.com/app/answers/detail/a_id/2520/~/sd/sdhc/sdxc-specifications-and-compatibility
I have a new TF700T with the Keyboard/Dock, and am wanting to pretty much max out its storage capacity in preparation for an upcoming trip (photography).
I realize that the Tablet itself requires MicroSD. I'm actually looking at this one:
Sandisk 64gb MicroSDXC Class 10
The Dock will obviously take a straight SD card, or a MicroSD card using the SD adapter. Is one of these ways any better as far as performance and reliability? I want to maximize read/write speeds.
I've also read enough threads here and elsewhere to see that this device is finicky with regard to which cards it'll work with, which formatting will be accepted and seen, etc. Any thoughts/experience in terms of which 64gb SD and/or MicroSD work best would be appreciated. And I understand that the higher the Class, theoretically the faster read/write speeds, but in an imperfect world, this isn't always the case, especially with this somewhat quirky device.
DLCPhoto said:
I have a new TF700T with the Keyboard/Dock, and am wanting to pretty much max out its storage capacity in preparation for an upcoming trip (photography).
I realize that the Tablet itself requires MicroSD. I'm actually looking at this one:
Sandisk 64gb MicroSDXC Class 10
The Dock will obviously take a straight SD card, or a MicroSD card using the SD adapter. Is one of these ways any better as far as performance and reliability? I want to maximize read/write speeds.
I've also read enough threads here and elsewhere to see that this device is finicky with regard to which cards it'll work with, which formatting will be accepted and seen, etc. Any thoughts/experience in terms of which 64gb SD and/or MicroSD work best would be appreciated. And I understand that the higher the Class, theoretically the faster read/write speeds, but in an imperfect world, this isn't always the case, especially with this somewhat quirky device.
Click to expand...
Click to collapse
I have one of those, formatted with exFAT. In the tablet it seems fine, and I can put video files on it and stream them off with no problem.
Not tried it in the dock.
If I unmount it clean from the tablet it is usually fine in my Windows 7 laptop; but occasionally it gets left in a dirty state and Windows will mount it read-only. I don't know if that's common with other cards.
However, in another thread I started a while ago I think we've found that the card can't be used in the tablet for recovery purposes. That may or may not matter to you.
Thanks for the reply. I went ahead and order the MicroSDXC card above, along with the full SD version of the same Class 10 card. I heard from another TF700T user for whom the MicroSDXC worked fine, so hopefully I'll be okay.
And thanks for the tip, but no, I won't need that card for recovery purposes.
Best,
Is there any sure fire way to get this tablet to recognize NTFS or exFAT? I've tried the handful of apps out there e.g. NTFS Mounter/Paragon, etc. However they don't even recognize my SD card, saying something along the lines of "please insert NTFS media". This is honestly an amazing tablet for the price, but this downside is really kicking me in the butt right now.
Helltech said:
Is there any sure fire way to get this tablet to recognize NTFS or exFAT? I've tried the handful of apps out there e.g. NTFS Mounter/Paragon, etc. However they don't even recognize my SD card, saying something along the lines of "please insert NTFS media". This is honestly an amazing tablet for the price, but this downside is really kicking me in the butt right now.
Click to expand...
Click to collapse
I know it has trouble even with 32g samsung cards, but I too would dearly love to get a 64 gig working, on one site they said up to 64gig tf card (which google says is exactly the same as micro sd) every other site says 32 gig, surely if 64 works you can go to 4 terabytes or what ever fat32 can handle
I heard you needed to delete the exfat partition with some heavy duty software ... also that when google started pushing the cloud service they started making the cards smaller, which is kinda evil
Guys sorry for this dumb question but I heard that the S7's maximum SD-Card capacity was 200GiB.
My phone is rooted with magisk and SuperMan-ROM 3 (later maybe LineageOS Pie).
What happens when I insert a 400GiB SD-Card which I could get very cheap this weekend?
Will it work fine with all the capacity?
Will only 200GiB be accessible?
Will it not work at all?
Thank you!
ATP-Flo said:
Guys sorry for this dumb question but I heard that the S7's maximum SD-Card capacity was 200GiB.
My phone is rooted with magisk and SuperMan-ROM 3 (later maybe LineageOS Pie).
What happens when I insert a 400GiB SD-Card which I could get very cheap this weekend?
Will it work fine with all the capacity?
Will only 200GiB be accessible?
Will it not work at all?
Thank you!
Click to expand...
Click to collapse
I've had sucess on multiple phones using SD cards that were bigger than what the phones said they were capable of. I look at is is they can only guarantee up to thier stated max capacity, anything above that and there is a possibility of problems or not being able to read it. But every phone is different.
If it's real cheap you could get it regardless and could still use it. I picked up a little adapter for $12 that holds a micro SD card, it's regular USB on one end (for computer connection) and micro USB on the other using OTG function. Nickles for size comparison
I can confirm that the SANDISK Ultra® 400 GB is working flawlessly with the Galaxy S7.
The phone formats it to exFat and it shows 366 GB of available space.
(Which is correct.)
Only thing I couln't do yet is creating two partitions and linking the second to internal storage (No1 for exFat storage and No2 for Ext4 internal-sd-extension).
Well this just won't work.
When I try the internal-sd-extension is detected but I can't use it nor can I use the exFat storage which is not detected at all.
Don't know how to do this.
But nevermind.
ATP-Flo said:
I can confirm that the SANDISK Ultra® 400 GB is working flawlessly with the Galaxy S7.
The phone formats it to exFat and it shows 366 GB of available space.
(Which is correct.)
Only thing I couln't do yet is creating two partitions and linking the second to internal storage (No1 for exFat storage and No2 for Ext4 internal-sd-extension).
Well this just won't work.
When I try the internal-sd-extension is detected but I can't use it nor can I use the exFat storage which is not detected at all.
Don't know how to do this.
But nevermind.
Click to expand...
Click to collapse
For something like that you may need to use something like gparted to partition it how it needs to be for that to work, but I don't know