Database Users

SD card free memory incorrect

I have a 256Mb SD card that suddenly reported itself as having only 40Mb free when the total of stored files was only 16Mb.
I had to reformat to reclaim the lost space.
Has anyone else experienced this with SD cards and, if so, what it the likely cause?

well file explore dont really display hiddenfiles so the card could have all kinds of those
other file managers like total commander display all files

hi. I don't have XDA 2 but I think it happen to most most ppc 2003 OS because you are install some software that do not fully support or not support wm 2003. ( it happen to me on h5555, h5400,e405) So you need to hard reset a few times.

Sd problems continued....
High
Well i have a similar problem, but could solve it with a soft reset.
Now i have another problem..... I dont know how, but my card is.... i dont know how to explain. let me start from the beginning.
When i got my SPV M1000, i also got a new SanDisc SD 256 MB.
I installed cuple o programs :
PHM ( Pocket Hack Master ) main memory
Pocket Mechanic Main Memory
Stuntman Evolution Sd Card
Crazy Cart Sd Card
just to give you some exaples.
I then copyed the exe files and a X back up on my card. to have them with me if needed.
After biing happy for a half week ( experimenting with PHM and Pocket Mechanic) and a lot of playing with my device, all of a sudden, my SD card was wiped out!!!
It was all gone!!!!!
I tryed to repair/reformat/restor with pocketmechanic but nothing.
Everythin was simply not there anymore ( im talkin about 30 meg of data!!!
Active sync tells me " unavailiable " when i try to install to the SD card, and when i chose to do it anyway.... it works.
Files get istalled just fine on my card.
Now for the interessting part.
Crazy Cart just stopped working!!!
" Cannot find "crazycart" or one of its components.
Make sure the path and filename are correct and all the required libraries are availiable"
is the text i get when i try to start it.
Its happenig again...... its starting to ,lose files??
has anybody expirienced the same or similar ?
is my card broken eaven though POCKETMECHANIC TELLS ME ALL IS FINE?
Any help would be coooooooool
thanx
peace

sandisk sdcard error after rom backup

hello!
i have a huge problem with my sd card.
i tryd to backup my current rom using command "d2s" and it worked fine so far, checksum ok and all that.
then i removed the card and put it into my pc (cardreader)
trying to read the rom, it says:
C:\>ntrw read OriginalROM.nb1 G:
NTRW v2.00
Removeable media
Cylinders: 0:0
TracksPerCylinder: 1
SectorsPerTrack: 16
BytesPerSector: 512
bufsize is 65536
0 bytes written Res: 0 bytes: 0
ReadFile(): OriginalROM.nb1 -- The parameter is incorrect.
I my eyes, its strange that it says "0:0" Cylinders.
At the end, the tool never read something from my card. i gave it up then
Finally, trying to format my 1gb-card with windows, it worked and i could write/read the card.
BUT:
In my PPC, it says, the card is not formated and when i choose, yes my dear, make me a filesystem, it works in PPC, but no more in windows!
Whats the problem? It worked fine before making the boot-loader-rom-backup thing...
Anyone some tips?
(Sorry for my bad english )

Hello friend,
As long as its recognized by your PPC, its not a big problem your stuck with. Try re-formatting your card in your PPC and check if it works in PC!
Regards
Carty..

Hello,
thank you for answering me.
As i wrote above, after formating the card with the PPC, its not readable with the pc, and the other way the same...
I think something with the partition table or sth like this is broken! i dont know why i cant get it work with both at the same time. As a mess, my linux does not support my cardreader so i cant perform any deeper analyse...
edit: i used Pocket Mechanic with various settings to format the card, low-level too... but nothing helps getting me recognize it with my windows-pc.
ty

USB port fried?

hello,
after flashing my universal (vpa IV, see sig) with tomals 6.1 21028 BETA 2 build, i noticed that the usb port doesnt seem to be working anymore. im not sure whether tomals rom caused that, but if i try to connect my device to active sync / flash it i just get a "unknown USB device" error from XP, just like if the uni was booting up. if i try to flash ANYTHING, i would get a "CE ROM UPGRADE ERROR" (error 112). i've tried it on 2 PCs, with 2 USB cables. both machines are win xp 32bit with active sync 4.5...
ohh by the way: it even doesnt work on bootloader mode! keep getting the same error ( yep i took SIM + SD card out )
thanks in advance, hope someone has a solution!
EDIT: is there a way to flash ROM / Radio from SD Card? how? i could sync over bluetooth and stay with flashing from sd card instead of repairing the usb port
EDIT2: alright i found it http://forum.xda-developers.com/showthread.php?t=393370
EDIT3: i cant get it to work! i've tried with a 256mb SD card, and with a 2gb sd card. at the 256mb card the recovery will just abort at 19%... HELP

bump...
could anyone with a 64mb ram G3 uni bootloader version 1.00 and a 128mb MMC or a 256mb SD upload the bootloader for me? would be great! just do this on mtty:
connect to the device on USB / WCEUSBH001
type:
USB>task 32
USB>d2s 70000000 80000
(INSERT SD NOW!)
(Please notice the blank space between d2s and address, sd )
if it shows "store image to SD / MMC card successful.", the bootloader upload was successful.
after doing this, just give me the bootloader ( which is, as i guess just like at the pc the first 512bs (including part. table)
so, get this tool: http://www.chrysocome.net/downloads/dd-0.5.zipunzip it for example to C:\ then go to start -> run and type in "cmd", now press enter.
type in C: and press enter.
now type cd dd-0.5 and you should be on the folder where dd is. check whether it is by typing in dir. then do dd --list and look for the SD card. for example if its shown as:
\\.\Volume{f87b78e3-0c04-11de-be63-806d6172696f}\
link to \\?\Device\HarddiskVolume4
fixed media
Mounted on \\.\d:
now type in: dd if=\\.\d: of=g3.bin bs=512 count=1 press enter.
now you have the file containing the mbr of the SD card. upload this one in a zip file / whatever, that would be really great! thanks!
EDIT: tomals tool may also work to dump the header!
sdread.exe -p G: start 416 sd.bin
here G: is the drive letter of your sd card and sd.bin is the file-name, please modify them accordingly. it would write the 416 bytes from your sd to the file.
Click to expand...
Click to collapse
get the tool here: http://forum.xda-developers.com/attachment.php?attachmentid=88435&d=1211870722

sorry I got v1.01 bootloader, any good?

JonMorgan said:
sorry I got v1.01 bootloader, any good?
Click to expand...
Click to collapse
well you could try should work, thanks in advance!

Code:
task 32
USB>Level = 0
USB>d2s 70000000 80000
DeviceToStorage: No card inserted!
USB>
USB>d2s 70000000 80000
SD:Waiting for card insert.........
CMD3 for SD, it's OK, ready to get RCA from response.
SD:Detected one card
SD:ready for transfer OK
d.total_lba=7A000
d.block_size=200
d.RCA=B368
d.drv_type=40000000
d.busWidth=1
Total card size=F400000
SDCARDD2S+,cStoragePlatformType=FF
DOCInfoTableinitHW+
Binary0 Size: 0x100000
FAT0 Size: 0x4000000
FAT1 Size: 0xA00000
FAT2 Size: 0x2C70000
All Size: 0x7770000
FAT0_ADDR=0x100000,FAT1_ADDR=0x4100000,FAT2_ADDR=0x4B00000
**
Store image to SD/MMC card successful.
USB>
the_fish said:
bump...
so, get this tool: http://www.chrysocome.net/downloads/dd-0.5.zipunzip
Click to expand...
Click to collapse
404 Page Not Found

JonMorgan said:
Code:
task 32
USB>Level = 0
USB>d2s 70000000 80000
DeviceToStorage: No card inserted!
USB>
USB>d2s 70000000 80000
SD:Waiting for card insert.........
CMD3 for SD, it's OK, ready to get RCA from response.
SD:Detected one card
SD:ready for transfer OK
d.total_lba=7A000
d.block_size=200
d.RCA=B368
d.drv_type=40000000
d.busWidth=1
Total card size=F400000
SDCARDD2S+,cStoragePlatformType=FF
DOCInfoTableinitHW+
Binary0 Size: 0x100000
FAT0 Size: 0x4000000
FAT1 Size: 0xA00000
FAT2 Size: 0x2C70000
All Size: 0x7770000
FAT0_ADDR=0x100000,FAT1_ADDR=0x4100000,FAT2_ADDR=0x4B00000
**
Store image to SD/MMC card successful.
USB>
404 Page Not Found
Click to expand...
Click to collapse
sorry: http://www.chrysocome.net/downloads/dd-0.5.zip

hmm just a little update: the data port on the usb connector is DEFINITELY broken. maybe its also the USB "controller"? i connected the phone to linux (running wm) and got "Unable to read/64 device descriptor error=-71" every time i connected the device.
so i went into the busy box on the phone and connected it again. it gave me EXACTLY the same error messages, and "USB reset!" on the phone dmesg. what should i do? i already checked the USB connector on the M/B and it was good!

bump.... still have the problem

Sorry, was on holiday. Please find attached from Tomal 8.7 on 256MB miniSD

Hi!
i had so problem earlier.
there was shorted two pins on usb controller with little metal particle.
look more accurate on your mainboard

NikolasV said:
Hi!
i had so problem earlier.
there was shorted two pins on usb controller with little metal particle.
look more accurate on your mainboard
Click to expand...
Click to collapse
yeah i looked as close as possible EVERYwhere on the mainboard. just wasnt able to find the broken part, maybe its really the rs232 chip that is broken.... did the bootloader show USB for you when the device was plugged in?
Sorry, was on holiday. Please find attached from Tomal 8.7 on 256MB miniSD
Click to expand...
Click to collapse
no problem (im on holiday right now, too! ) thanks for the file.... trying it out now...
UPDATE: just tried it, no luck thanks for uploading it anyway! hope it'll be useful to someone else once =)

Issues with USB
I had the same problem with my uni. similar thread here somewhere. I had to ship off to PPCTech, and they were able to fix it.
There was some chip that had blown, and it was replaced.
Regards

Swapping 16gb sd card from 8gb ??

I have just got a 16gb sd card which is recognised by my HD2 but copying my files straight to the card from both the pc and via pc cable meant that I have several issues with programs installed, such as jwmd icon changer, my icons all return back to the old ones...
I have formatted the sd card several times...
as soon as I replace the sd card and soft reset it works fine... just not with the 16gb card.
any suggestions?
Thanks
I have searched and tried the suggestions on a couple of the threads...

Gstq10000 said:
I have just got a 16gb sd card which is recognised by my HD2 but copying my files straight to the card from both the pc and via pc cable meant that I have several issues with programs installed, such as jwmd icon changer, my icons all return back to the old ones...
I have formatted the sd card several times...
as soon as I replace the sd card and soft reset it works fine... just not with the 16gb card.
any suggestions?
Thanks
I have searched and tried the suggestions on a couple of the threads...
Click to expand...
Click to collapse
When you copy the files from the 8gb card, select on your pc to show all files (enable hidden files) from the maps that are in the 8gb card.

Thanks for the advice, unfortunately I had already done that....
I'm wondering if the card is faulty...
I am currently in the middle of a full format rather than a quick format...

Gstq10000 said:
Thanks for the advice, unfortunately I had already done that....
I'm wondering if the card is faulty...
I am currently in the middle of a full format rather than a quick format...
Click to expand...
Click to collapse
Maybe you can test your card with H2testw to see if it's faulty.

I'll try that, thanks
The full format didnt make any difference........

to test the 16gb sandisk I got from a foreign seller on ebay, I used dd under linux, wrote several 4GB size files filled with zeroes, until it was full, and then copied them back to the HD.
Write and read operations went fine, so I suppose the card works alright, and is really a 16GB card (14.83GB really on it due to difference between GB and GiB), and I tested it for max 7.5MB/s write speed, and 7MB/s read speed.
So you could do the same write/read tests to see if all the data put on the card is really there, or if it's a fake/damaged 16GB card

Make Sure to also uncheck 'Hide Protected operationg system files' before copying

Er, I may be missing something here, but, all previously installed app associations will be unusable when you change mem card and you will need to reinstall everything.
My advice would be to install everything you can to phone mem and it will run more quickly and be more stable into the bargain, use less battery and run cooler!

pa49 said:
Er, I may be missing something here, but, all previously installed app associations will be unusable when you change mem card and you will need to reinstall everything.
My advice would be to install everything you can to phone mem and it will run more quickly and be more stable into the bargain, use less battery and run cooler!
Click to expand...
Click to collapse
I thought this maybe the case, but having read other threads, other people seem to have been able to do it... also, with previous other phones I have done it...

Hi. have you tested a clone software like DriveSnaphot. Thats the best method.

pa49 said:
Er, I may be missing something here, but, all previously installed app associations will be unusable when you change mem card and you will need to reinstall everything.
My advice would be to install everything you can to phone mem and it will run more quickly and be more stable into the bargain, use less battery and run cooler!
Click to expand...
Click to collapse
well... no problem here, I've switched from 8 to 16gb sd on my previous ipaq, simply mirrored the file structure, and all the .lnk files in the menu worked alright.... I do not really see the reason why those shortcuts shouldn't work anymore.

ephestione said:
well... no problem here, I've switched from 8 to 16gb sd on my previous ipaq, simply mirrored the file structure, and all the .lnk files in the menu worked alright.... I do not really see the reason why those shortcuts shouldn't work anymore.
Click to expand...
Click to collapse
how did you do it? I tried the snap shot idea... no luck.....

I just had a look at the copied folders on the 16gb sd card via my pc, at the top level they seem ok, but once I look into each folder they all have crazy symbols instead of folder names.... this is obviously the problem... but what is causing it?
They are all normal on the original 8gb
Juat to add that they are ok on the 16gb card also until i put them into the hd2....

Gstq10000 said:
I just had a look at the copied folders on the 16gb sd card via my pc, at the top level they seem ok, but once I look into each folder they all have crazy symbols instead of folder names.... this is obviously the problem... but what is causing it?
They are all normal on the original 8gb
Juat to add that they are ok on the 16gb card also until i put them into the hd2....
Click to expand...
Click to collapse
test the files.
It may be possible that the card is a fake 16gb or defective.
Copy 15gb to it from PC (prferably movies), then copy them back to hard disk on another folder. See if you can still watch all 15gb of movies. If you get errors, card is defective/fake.
There's no reason why a snapshot shouldn't work otherwise.

ephestione said:
well... no problem here, I've switched from 8 to 16gb sd on my previous ipaq, simply mirrored the file structure, and all the .lnk files in the menu worked alright.... I do not really see the reason why those shortcuts shouldn't work anymore.
Click to expand...
Click to collapse
It's not a matter that they shouldn't work. It's that they often don't.
Some will have no problem and some will. Especially when attempting usage after a flash of ROM or any alteration of registry (dirrectly or indirrectly).
The OS knows the location of associated files and when a straight copy of files is made from one card to another there can be no certainty that the integrity of the file system will be maintained.
You wouldn't rely on your PC to acknowledge a new second Hard drive in exactly the same way as an older one was just by copying the files. There's fat and boot sector implications.

I'm currently testing the sd card with a program called h2testw which writes data to the card to test the capacity etc to see if its been hacked to show a fake capacity... its going to take 90 mins...so fingers crossed its not fake....

pa49 said:
It's not a matter that they shouldn't work. It's that they often don't.
Some will have no problem and some will. Especially when attempting usage after a flash of ROM or any alteration of registry (dirrectly or indirrectly).
The OS knows the location of associated files and when a straight copy of files is made from one card to another there can be no certainty that the integrity of the file system will be maintained.
You wouldn't rely on your PC to acknowledge a new second Hard drive in exactly the same way as an older one was just by copying the files. There's fat and boot sector implications.
Click to expand...
Click to collapse
ehm, I'm sorry, but that doesn't make much sense
We are talking about file paths here, and nothing more; as long as the memory card is still named "Storage Card" in the device, you just need to copy the file structure over, everything will work. Or maybe everything except those registered programs that check the idenitification number of the memory card to see if they are installed on the correct media.
And in fact, if you mirror your hard drive to another, bigger one, you will have a copy of your previous system...
If you experienced something different, please make an example. Did you mirror the file structure from an old microsd to a new microsd and the system didn't work?
The other user here was having a problem with the file structure being corrupted, that makes sense, but just that...

This was the result.... can anyone tell me what this actually means?...
Warning: Only 15983 of 15984 MByte tested.
The media is likely to be defective.
43.0 MByte OK (88176 sectors)
15.5 GByte DATA LOST (32645008 sectors)
Details:15.5 GByte overwritten (32645008 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
0 KByte corrupted (0 sectors)
2 MByte aliased memory (4096 sectors)
First error at offset: 0x0000000002b0e000
Expected: 0x0000000002b0e000
Found: 0x00000003e6d0e000
H2testw version 1.3
Writing speed: 3.05 MByte/s
Reading speed: 8.85 MByte/s
H2testw v1.4

43MB ok, and 15.5GB of LOST data?
8.85MB/s of read speed against 3MB/s of write speed?
faaaaaaaaaaaake!
Sue your vendor, he probably sold you a very small microsd card which has been hacked to look like it's a 16gb one.
Either that, or the card is severely defective; anyway, sue your vendor

I got it on ebay for £10... but got the £10 refunded by paypal as it hadnt arrived... then a few weeks later it arrived... so its no loss... just annoying!

SD Card with exFAT

Anyway Galaxy Tab S2 can read and write file more than 4GB in the SD Card ?
I have no problem with the internal storage....
thanks

Format to exFAT.

ashyx said:
Format to exFAT.
Click to expand...
Click to collapse
and plug into s2 and it can read ?

Of course.
Sent from my HTC One_M8 using XDA Free mobile app

ashyx said:
Of course.
Oh ya... thanks Ashyx... it works.. this didn't work in old phone...
Click to expand...
Click to collapse

localbus said:
ashyx said:
Of course.
Oh ya... thanks Ashyx... it works.. this didn't work in old phone...
Click to expand...
Click to collapse
Modern devices
Click to expand...
Click to collapse

ashyx said:
Of course.
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
how can you reformat the sd card to exfat?

Phurkus said:
how can you reformat the sd card to exfat?
Click to expand...
Click to collapse
Windows, twrp or app.

I've always been under the impression that it's preferable to format cards to FAT32 as long as the file size limit isn't an issue. I imagine that the benefit wouldn't be terribly significant, but I'm in the habit of reformatting new cards to FAT32 due to my impression that there's at least some benefit towards performance (I use FolderMount heavily, mostly for huge games and I've never noticed decreased performance from keeping the obb files on external storage).
I'd be curious to hear your take @ashyx in any case, but I actually just got a new 128 GB card yesterday that I was opening up to reformat it with GParted when I read this post :laugh: I've been debating setting up a MultiSystem setup on my Note 4 (I'd actually prefer to use my S2 for that... All of the listed "supported devices" happen to be the variants with Qualcomm chips. Another element that they share is that they are all supported by ROMs other than stock... So I suppose that my 817T is "less than ideal" for that purpose!) I think I'm going to include a small ext4 partition anyway in case I do end up using my phone to multiboot. It's pretty likely that I will at some point, and having the partition scheme set up already and just swapping cards sure beats adding a partition to a populated disk... Here's the MultiSystem thread in case you're not familiar. Looks like an awesome tool... http://forum.xda-developers.com/android/software-hacking/tool-multirom-recovery-replacement-t3102395
@Phurkus Most cards come already formatted as exfat, at least those on the higher end of the storage spectrum. If you need to reformat it depends which OS you're using. Windows supports exfat natively, so all you need to do is right click on the disk, select "format", then just make sure that the dialog box that pops up has exfat selected (it should, NTFS is the only other option), you can leave "quick format" checked, type in a name if you want, then just hit start. If you want to format a filesystem to FAT32 though, there are a few small free utilities that you can use. The only one I've used myself is called Rufus. This isn't really necessary for formatting an entire device to a single partition of a common filesystem type, but I almost always use a Linux system for disk partitioning. The tools available are (generally) far more powerful, but the learning curve is a bit steeper depending on how/what you're doing and there can be a greater risk of data loss if your disk isn't blank (or if you're spacing out and wipe a local partition need for your OS installation)! Anyway, the free Windows utilities are just fine for simply reformatting a disk

Phurkus said:
how can you reformat the sd card to exfat?
Click to expand...
Click to collapse
READ THIS REPLY FULLY, THEN DO YOUR FORMATTING AS POSTED IN THE MIDDLE SECTION OF THIS POST.
Windows 7,
Click Start
In the search type in "CMD" (without quotes)
In the results, top of search window, CMD will appear Don't click enter...right click CMD and "Run as administrator ". CMD window opens (black background).
Type:
diskpart (hit enter)
List disk (hit enter)
...you will now see a list of hard drives, thumb drives, and memory cards in this result of list disk . Pay attention to the size of the sd card your working with. Results may be...
Disk 0 500 GB. (PC hard drive)
Disk 1 64 GB (64 GB micro SD card)
500 might show 480 something.. same with 64 showing 58.. you got the idea.
The disk 0 will be your 500 GB hard drive for the PC. You will NOT chose disk 0.
This above is an example. The size I said is an example. It is easy to do. Dont get scared
Again,
diskpart ( hit enter )
List disk ( hit enter )
Select disc 1 ( if one is your sd card, from example above )
clean ( hit enter, time to wait you won't be able to type a letter if PC is still doing this ' work' just wait / for a deep clean you can type ' clean all ' (longer, like an hr )
create partition primary /or.. creat part prim ( hit enter )
active ( hit enter )
format quick fs=exfat ( hit enter ) (this is your type of format, exfat or you can fat32 or.. if you want a In depth format type ' format fs=exfat ' notice 'quick' was removed.
exit ( hit enter )
exit ( hit enter )
You can now remove the sd card from PC and put in your device. It is now erased and formatted to exFAT.
-------------
ONCE AGAIN,
CMD right click run as administrator, important to be admin.
diskpart
list disk
select disk #
clean
creat prim part
active
format fs=exfat
exit
exit
EXACTLY AS I HAVE TYPED.
You can
format quick fs=exfat
Diskpart is a program to do work on disks.
list disk is listing disks connected to the PC.
select disk, is chosing a disk to only work on in this diskpart program.
clean, is erasing get the disk and cleaning it.
creat prim part ( short for create primary partition) making the disk a partition for primary use. Since no specific custom size was typed, the whole disk is being marked as a primary partition.
active, is activating the disk (personally don't know if NEEDED but I think it can be a key factor to make it work. I'm just posting what I read from a master)
format fs=exfat, is formatting get the disk to exFAT. You can chose .. format fs=fat32 if you want FAT32 format.
exit, is exiting the diskpart
exit is exiting the CMD.
Dont add or miss spaces in the commands.
When choosing a mistake disk like the windows 7 main disk, it won't work. Your using Windows and running CMD from the Windows folder , since the PC is not going to erase itself you will probably get an error . IF you chose another none Windows Disk, it will work and erase and format that chosen disk. Chose carefully.
If all fails ( hard to mess up if you simply follow my directions ) just type exit to exit diskpart, and exit again out of CMD.
It is real simple and it is the way to erase, activate and format a sd card / micro SD card. I just did this on mine yesterday.
-------
MICRO SD CARD SPEEDS ON SAMSUNG GALAXY TAB S2......
As far as speeds go, my Samsung PRO+ 32 GB micro SD card class 10, U3, UHS-I is showing get speeds of:
Read 60
Write 30
Read 63
Write 35
Tests done on an empty card at home.
With the card used, 15 GB left, I'm showing, my results were
Read 61
Write 26.
Keep in mind my WiFi is cable, @ 60 down 7 up.
In BestBuy
I got
Read 60
Write 47
When I was in best buy complaining to Samsung, using there WiFi.
I bought a 64 GB micro SD card SanDisk ULTRA Plus, class 10, U1, UHS-I
The format out the box was, ( exFAT with a 16mb unallocated partition on the 64GB micro SD card.)
16mb of the space was not formatted and separate from the rest of the size. I'm not sure why? For self device cache? For ' alignment '?
I formatted using the above method. The entire space is now exFAT.
The card SanDisk ULTRA PLUS, came with exFAT format being 64gb.. the Samsung PRO+ 32GB was FAT32.
Results of the SanDisk ULTRA PLUS is,
Read 55
Write 15-18
The Samsung PRO+ is a Read 95, Write 90 card...4k video card.
The SanDisk ULTRA PLUS card is supposed to be 80/80 on bestbuy.com but on SanDisk website 80/40-50 (?) I forgot.
Either way, This testing get was done with the app suggested in the earlier posts in this thread and used the (full test) where you reboot the device. As mentioned.
I see a discrepancy in the test results differing from different WiFi. BestBuy's WiFi showed more Write in the public Store WiFi then my house.
I don't believe this app is fully correct, also, adds are running using the app, one can turn off the adds for "3 hrs". The fact the different Write speeds from location to location concerns me about this way of testing. No disrespect to the poster. I appreciate your input.
It is too bad I don't see a better app?
If anyone else would test, please use this app and the full test results. You have to change the settings of the app to show advanced test options or there is just one 'normal' test.
In my conclusion sofar, if you use the 'best', or 'most expensive ' card, your test scores ( Write speed ) will be more. A difference from SanDisk ULTRA PLUS Write 15, to Samsung PRO+ Write 30, is a difference for me to make a decision.
Currently prices (on sale at BestBuy )
SanDisk ULTRA PLUS 64GB= 24.99
Samsung PRO+ 64GB= 49.99
Double the price. FYI the SanDisk EXTREME PLUS 64GB is 49.99.

Why is it necessary to go through all that when all that is required is to right click, select format then choose exFAT?
Or let TWRP format it.

ashyx said:
Why is it necessary to go through all that when all that is required is to right click, select format then choose exFAT?
Or let TWRP format it.
Click to expand...
Click to collapse
Wondered the same after posting exactly that directly above... partitioning via command line introduces too much potential for error when simply reformatting an entire disk to a single partition IMO.