USB write protected means the USB cannot be written to. But why?
There are really only two reasons why a USB stick is write protected.
#1 The USB is corrupted in some way and is no longer working properly. It’s actually very easy to destroy a USB stick and the most common way is sending multiple write threads to the device. So for example, you decide to copy a bunch of files form your computer to your USB stick. While that data transfer is going on, you give another request to write data to the flash drive. If the second request doesn’t write protect the USB, then try sending a third command, all at the same time of course, and this will certainly write protect the drive.
#2 The USB is write protected by design. Meaning the content owner (person who put data on the drive) made the stick read only. Read only is another way of saying write protected.
How you make a working USB stick write protected is sending a
Most of the time formatting a flash drive is a very simple decision. There are only two situations where you should take consideration on what format to use. Here are the details:
Note: This article is focused towards Windows and Mac operating systems.
The file formats available for a flash drive are:
- FAT (also called FAT16)
- HFS (Mac only)
Flash drive manufacturers format a drive as either FAT or FAT32. Any device of 2GBs or smaller will be formatted as FAT and any USB over 2GBs will be formatted as FAT32.
These two formats are the best file system for removable drives like flash drives because they support the quick disconnect function and chances are very slim you will destroy the device or files if you unplug the USB without using the Eject function (in Windows) or Un-mount function (in Mac).
The one huge limitation with FAT and FAT32 is the single file size limitation. If a single file is larger than
This is a USB stick using the PCB method:
USB Printed Circuit Board
This is a USB stick using the COB method:
USB Chip On Disk
This is a USB stick using the UDP method:
USB Disk in Package
Can I connect a USB Type C cable to an older USB 2.0 port?
No you cannot.
The USB type C socket is a backward compatible technology with respect to the protocol but it is not backward compatible in the physical connection. Meaning, the sockets wont fit, but with an adapter you will have no problem charge devices or trasnfering data.
The USB-C connection was design for several reasons. Of course a new specification will always be developed to increase data transfer rates or introduce new features, such as increased power across the buss to charge or power connected devices. The main reason for USB-C connectors is size. With USB being the world’s most popular technology for peripheral devices, the Implementers Forum (with members such as Intel, Acer, AData, SanDisk, Lexar, Micron and many others) they wanted to insure the USB specification continued to be the #1 method for connecting the ever decreasing size of digital devices.
Police dogs have yet another smell they must detect. Tactical Detection K9 company now trains dogs to sniff out SD cards and USB sticks. The training is in response to better assisting law enforcement in child pornography investigations.
The percentage of a dog’s brain which is devoted to analyzing smells is 40 times greater than humans. For example, humans can detect about 5 million scents and a German Shepherd can detect around 225 million smells.
In a recent investigation a dog was used in the FBI raid of the home of the former Subway spokesman Jared Fogle in Hancock County, Indiana.
What could take investigators hours to find an SD card or USB stick in a house would take a trained dog considerably less time, probably no more than 30 minutes.
According to Tactical Detection K9 it took scientists over four years to isolate the odor associated with memory devices. Now that a specific odor has been identified it takes 8-9 months for a dog to be trained in picking up that scent.
A dog which can sniff out SD and USB sticks can cost upwards of $9,000.
Lake Forest, CA — July, 2015 — Nexcopy Inc., introduces a new software suite which supports data locking content to secure digital media. The software function supports both full size Secure Digital card media and microSD card media. The data locking feature will turn the SD card into a read only card so data cannot be deleted or formatted off the device.
Write protecting, or data locking content to flash memory is an important security feature. With the Nexcopy software and duplicator, data can be copied to the memory card and as a final step the device will be write protected at the controller level. Performing the data lock at the controller level blocks any third party from manipulating, hacking or tampering with the original content.
With the Nexcopy duplication software and hardware solution, a content owner has the following benefits:
Computers on a stick will begin to gain popularity over the next two years. Lenovo is the most recent to offer a compu-stick. The Ideacentre 300 Stick is a 2GB of RAM computer with an Intel Atom Z3735F processor (2M cache + 1.83 Ghz) and runs Windows 8.1.
The Compu-Stick can be plugged into any computer and when you reboot, the hardware now uses the OS of the compu-stick.
Alternatively you may connect the device to a TV and sync a keyboard and mouse and now you have a fully functioning PC with your TV as the monitor.
This is a great step in the right direction as all technology will move towards solid state memory. The Lenovo product has 32GBs of memory which is fine for a first generation product. If they can house a microSD slot in there for expanded memory, it would be an inexpensive solution to a possible data storage problem.
The only caveat left is that unless true Grade A memory is used in these devices the data retention and stability is the week point. With Grade A NAND memory you have a re-write of about 100,000 cycles. SLC memory will help this issue and improve reliability.
Reports indicate the Compu-Stick will run about $150.