09-30-2014 06:23 AM
Dear member of SanDisk Community, welcome.
Please friend, do not grieve more, return it, is dead, ist kaputt...
Write protection errors occur when a flash drive detects a potential fault within itself. The drive will go into write-protected mode to prevent data loss.
There is no method to fix this.
To verify the issue is related to the UFD and not your computer, we recommend that you try plugging the UFD into another port on your computer.
You should also try the drive on another computer if possible.
You might have a pleasant surprise, if can contact with SanDisk Technical Support who will replace the device if it's authentic and is within warranty. Link: http://www.sandisk.com/about-sandisk/contact-us/
To obtain the internal data of the UFD, you can use (apps portable, free): - USB Flash ChipGenius, http://filecloud.io/rqa7etmv
- USB Flash DriveLetter, http://filecloud.io/vgqzcdyh
- USB Flash Deview, http://filecloud.io/srp2hegw
To find out more on this, see here: http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/HELP-how-do-i-reomove-write-protected-mess...
Regards, Alfred. (Google translated)
09-30-2014 07:44 AM
Estimado miembro de la Comunidad SanDisk, bienvenido.
[ I believed it started the day I upgraded to 4.3 too (Xperia Z1). This is weird. ]
Mmm... Idem post N°11...
[ I live in Argentina so there is no way of RMA for me. ]
¿Amigo, por qué dices, que Argentina no tiene RMA?
Soporte técnico en Latinoamérica
Argentina (español e inglés)
+54 1150314701 (no es un número gratuito, es posible que se apliquen cargos locales).
Enviar una consulta
Hora estándar del Este Lun.-Vie. | De 09:00 a 18:00
Buenos Aires y Mar del Plata
Saludos (che!!! fierita... ),
12-05-2014 11:08 PM - edited 12-05-2014 11:10 PM
Same issue, except that my card is Class4 MicroSDHC 32GB.
Problem occurred when my I had to reboot my Android phone (unstable custom ROM) and after that the card has been practically unwriteable. Have tried several tools, repartitioning and disk checking tools - none of them complain about unfinished formatting, errors or write-protection.
Haven't yet tried it in card reader, because it is currently lost, but I guess that won't make a difference anyway.
Anyone else besides bobmalcolm had success with contacting and getting a replacement? For Sandisk cards, 5 years is the standard warranty.
04-15-2015 11:16 AM
I to am having this issue with my 64GB Ultra Class 10 micro-SDCard. I use it in a Samsung Galaxy Note3, first with Kit Kat and now recently on Lollipop. When I first used it under Kit Kat I formated it and encrypted it to the device.
Per the upgrade instructions for Lollipop I decrypted my device and external storage before upgrade. Wanting a fresh start I backed up my data to my network storage and used Windows Powershell in admin mode and ran Diskpart executing the Clean All to wipe the card. It completed with no errors. But yet reinserting the card to my surprise showed the data was still intact, as if permanently baked into existence.
This actually worries me a bit, in regard to government spying on the public. It's been long known with the advent of flash technology that once a sector of information was overwritten or wiped it was gone forever unlike traditional hard drives that can maintain a ghost trace of the information which was a cornerstone to computer forensics.
Makes me wonder if government has dictated a requirement that flash media also have this capability? Everything I've done to this SDCard should have permanently wiped the drive. Partion, volume and sector level data. My data permanently archived to the card all cause my Note 3 cooked itself a few times in my car dock all day as I ran service calls?
05-12-2015 11:22 AM - last edited on 05-12-2015 11:33 AM by slotmonsta
i used to trust your product and bought many of them over the years for personal and business use...
i will no longer be buying your products...
no response for this problem bad business practise chasing your customers away like this.
upset sandisk sd card owner.
05-12-2015 11:43 AM
There is no government conspiracy here. What you are describing here only means the card locked into a write protected mode. This is done to prevent any data loss if the card controller detects an issue with the card. It is better to lock the card in a write protected state and still give you access to the data than to allow the card to fail preventing access to the data.
If the card is in a write protected state it will need to be replaced. Just backup the data and contact sandisk support for a replacement. This happened to me once before but I had personal data on the card and I did not want to send the card back for replacement. I contacted sandisk support and they allowed me to break the card before i sent it to them for replacement so data recovery would not be possible.
If you have this issue simply contact sandisk support and they should replace the card for you.
06-02-2015 08:01 PM
I am in the same boat. However my card is SanDisk Mobile Ultra 32 GB micro SDHC-I Class 6. It works fine in my old windows 7 Dell Venue Pro mobile phone, but it does not format in my desktop computer, laptop computer and MS Surface, and it gives an error. The file explorer show a drive letter after a long scan, but zero GB capacity! When I put the card back in the Venue Pro, it works again!
I want to reuse this card in my new Nokia Lumia 635. The phone does not recognize the card and the format button is disabled. I have tried SD Formatter and a bunch of other tools to no success...I have read in the other forums that the Ultra series need to be in your phone and go throgh a complete phone reset in order to be be read again. Has anyone tried this method?
08-13-2016 08:31 PM
I have exactly the same problem. Used in Samsung Galaxy S4. Using the phone / files app, I can manually delete everything (except for the android.secure. folder). Then, dismount the card and remount the card and everything is back. I can delete everything and then put it into a computer and everything is there. Windows 7 pro cannot format the card (error: Windows was unable to complete the format) or run chkdsk on the card (chkdsk /f). It says it is corrupt:
The type of the file system is exFAT.
Chkdsk cannot run because the volume is in use by another
The SD Card Formatter cannot format it as well. If I right click a file on the card, there is no delete option in the pop-up menu like there is for normal files. It is almost like it is write protected in that sense. However, after setting the write protect switch on the memory adapter, then windows gives the message that the memory card is write protected. So, even when the card is not write protected, files cannot be written to the card. Files cannot be deleted. The card cannot be formatted.
Has anyone found a solution or no what is happening with this? I do not want to throw it away as it has "my information" on it.