Sandisk 8gb flash drive firmware. Sandisk flash drive recovery process
Removable media from SanDisk is one of the most problematic types of technology in the history of this kind of device. The fact is that the manufacturer has not released a single program that could help restore the drive. Therefore, those who have such flash drives can only wander through the forums and look for posts from other users who were able to fix failed SanDisk devices.
We tried to collect all those programs that really work with the carriers of this company. There were very few of them.
The set of solutions turned out to be very strange and unusual. So, one of them is completely designed for flash drives from another company, but for some reason it also works with SanDisk. Another utility is paid, but you can try it for free.
Method 1: SanDisk Rescue PRO
Although the name of the company appears in the name, it seems that SanDisk representatives themselves do not know anything about it at all. You can download it on the website of a certain company LC Technology International. In any case, this program copes with the recovery of removable media, and for us this is the most important thing. To use RescuePRO, do the following:
Interestingly, in some cases the format button seems to be disabled (it will be gray and unclickable). Unfortunately, it is not very clear on what basis the division into those users for whom this function is available and who is not.
If you manage to use SanDisk RescuePRO, all data from the flash drive will be erased. It will automatically be restored and ready to work in the future.
Method 2: Formatter Silicon Power
This is exactly the same program that for some reason works with some media from SanDisk. The description for it says that it works with devices that have PS2251-03 controllers. But not all SanDisk flash drives that Formatter can serve Silicon power, have such a controller. All in all, definitely worth a try. To do this, you need to follow a few simple steps:
Method 3: USB Disk Storage Format Tool
One of the few programs that works quite well with SanDisk media. It is the only one on our list that can check removable media, fix errors on it, and format it. Using the USB Disk Storage Format Tool looks like this:
What else can be done
In addition to all the above programs, in some cases it also helps SMI MPTool. This tool is designed to work with Silicon Power flash drives. How to use it is described in detail in the article on the repair of such devices (method 4).
Also on many sites they write that there is a certain proprietary utility Format and Read/Write Check Utility. But not a single intelligible download link could be found.
A flash drive is one of the options for a successful content storage, which is required to perform production tasks, as well as to organize your own leisure. Flash drives can have sufficient volumes, allowing the user to accumulate large volumes useful information, video and photo. Unfortunately, it also happens that this reliable storage fails at one fine moment, making it impossible to subsequently download the recorded material, and, of course, to record a new one.
By using special utilities you can revive the Sandisk drive.
Experienced users know that there are special programs that can be used to restore a flash drive, restore its functionality, and also, if necessary, restore files previously recorded on it.
Unfortunately, the Sandisk flash drive is not the best example when solving such a problem, since the manufacturer did not accompany it. special programs for recovery. For this reason, sometimes you have to be zealous, scour the Internet before you find helpful tips and, moreover, the necessary programs. But do not rush to be disappointed, everything is not hopeless, in fact, you can use some programs that will help you successfully restore a Sandisk flash drive.
There are several software options available to help you solve your Sandisk flash drive recovery issue. We suggest you try out the possibilities of several utilities. Don't be embarrassed that one of them is not focused on Sandisk flash drives, and the second is completely paid. These minor obstacles can be easily eliminated and the utilities can be customized to achieve the designated goal.
SanDisk RescuePRO Utility
The SanDisk RescuePRO utility can be considered as an excellent tool with which you can recover Sandisk removable media. Surprisingly, the name of this utility practically corresponds to the name of the removable media, but the manufacturers of these two products are completely different and have nothing in common. However, since for us major problem is to find a program that will help restore a flash drive, then the creation history SanDisk utilities RescuePRO and its manufacturers can be omitted.
So, first download it to your computer. This can be done with different sources, but so that you do not burden yourself with unnecessary additional troubles, we suggest that you go to the website of LC Technology International. On this site, it will be easiest to find and download such a utility. Although you will have to fulfill some requirements. In particular, you will need to enter personal data indicating your email box, which will receive a link to download the utility.
Rather, initially you will download the archive with the program. Unzip it and install the program itself. In most cases, the utility has an English-language interface, so we tell you to find the button labeled "Wipe media".
By clicking on this button, you will be prompted to select the removable media that you wish to format. Choose, specify the path to it and start this process, after which all information will disappear from the media, and the drive itself will be restored.
It's so easy to return the removable media to working capacity if you download and install such a Sandisk flash drive recovery program.
Silicon Power Formatter Program
If your Sandisk flash drive has stopped working, the Formatter Silicon Power memory card recovery program may try to bring it back to life, but, unfortunately, not in all cases. Read the instructions for the Formatter Silicon Power program. It clearly states that it works with all removable media that have PS2251-03 controllers.
ADVICE. For this reason, if you connected your non-working flash drive to the computer, and the program does not want to see it and perform any actions, then the program does not work with this type of flash drive. You will have to use other options to solve the problem.
If, after connecting the removable media and launching Formatter Silicon Power, the program window opens, you are lucky, then you can try to restore the functionality of your digital drive. To do this, you just need to click on the "Format" button, the program will do the rest on its own, you just need to wait for the completion of its actions.
USB Disk Storage Format Tool
Another good option for recovering digital drives is the USB Disk Storage Format Tool. This program also benefits from the fact that it allows you not only to format the flash drive, restoring its performance, but also to check the drive, immediately correcting the errors found.
After you install the program, open it. In the dialog box that opens, at the top, in the "Device" line, select your USB flash drive. In the middle part open window check the checkboxes next to the lines "Correct errors", "Scan drive" and "Check if dirty".
ADVICE. It is important to understand why you are checking these boxes. In particular, by confirming the need to execute the "Correct errors" parameter, you express your wishes regarding the correction of detected errors.
The "Scan drive" parameter directs the program to scan your removable drive, and the "Check if dirty" parameter is designed to check the flash drive, even if it is damaged. Now just click on the "Check disk" button, after which the automatic process of correcting the identified errors will start, restoring the performance of your removable media.
Unfortunately, if at the end of the program your flash drive is still not detected by the computer, then you will have to run the program again, but this time click on the “Format Disk” button. At the end of the process, in most cases, the flash drive can be restored by breathing a second “life” into it.
On the Internet, you can find other ways to restore the performance of flash drives of this model. You can, of course, use alternative programs, having previously thoroughly studied the recommendations regarding their use.
So, you were able to make sure that the process of recovering flash drives is not as complicated as it may seem initially ignorant. With strict adherence to all recommendations, format removable drive everyone succeeds.
Portable USB-Flash drives have firmly entered our lives. They help us in work, study and leisure. But, probably, everyone was faced with the fact that one day the flash drive stops working as it should or is not detected by the computer at all. Many in this situation will prefer to send a broken flash drive to the trash and buy a new one in return. Fortunately, the prices for flash drives are now quite low. But do not rush to commit this rash act, as you can try to bring the flash drive back to life.
Today we will consider the issue of restoring the performance of a flash drive using the example of Transcend JetFlash 300 8Gb, which “hangs” while writing data and after extraction was not detected as a drive.
When the flash drive was connected to the PC, it blinked a diode with a smooth decay, as if telling us: “Ooops! There is a problem". The following picture was observed in the device manager:
In the properties of the device, it was clear that the flash drive was detected, VID and PID correspond to the model, but it was not displayed as a disk and was absent in the disk manager.
Any flash drive has a controller (control chip) and one or more memory chips inside. Due to failures, power problems or other reasons, the controller may be blocked, and in memory, like hard drives, "bad" sectors may appear.
In the event of a software failure, which occurs in our case, the flash drive resuscitation algorithm is as follows:
- We determine the manufacturer of the controller.
- We find the manufacturer's service utility.
- We put the controller into test mode, if required.
- We are restoring.
Considering the fact that the warranty for our Transcend JetFlash 300 8Gb has been out for a long time, we will not hesitate and analyze it:
Carefully pry the edge of the sticker from the side of the cover with a knife, lift it up. Under the sticker we see the latch tooth:
We press something thin on the latch tooth and pull the connector forward. You can use a thin screwdriver inserted between the housing and the colored plug:
The body separates quite easily:
And here we have a completely disassembled Transcend JetFlash 300 8 Gb flash drive in our hands:
Let's see what kind of controller chip? — SM3255Q AB.
On the reverse side we find a memory chip - Samsung K9BCG08U1A-MCB0
We have decided on the initial data. Now we begin the search for a utility from the wonderful site flashboot.ru
We have a chip from SMI, which means we are looking for a service utility that can work with the SM3255AB controller. Through trial and error, the utility was found - SMI MPTool V2.03.20 v2 J0324. Please note that there are a lot of versions of this utility, but only this version (v2 with J0324 at the end) saw our flash drive.
At first, no utility wanted to detect a USB flash drive. In specialized forums, in such cases, it is recommended to transfer the controller to test mode, in which the memory chip is not polled during the initialization of the flash drive (details on flashboot.ru). Then install the factory driver (complete with the utility).
To put the controller into test mode, you need to close two of its legs. But not any, but special! But, unfortunately, it is not always possible to find a datasheet (documentation) for the controller, and there is a high probability of shorting the wrong legs and completely burning the control chip. Therefore, they usually go the other way, namely, they look for a datasheet on a memory chip, and close the legs on it. The data bus of the memory chip and the controller is usually connected directly.
If we have a datasheet for our microcircuit, then in the circuit we look for pins signed as F0D0, F0D1, etc., this is the data bus. We close them in pairs with a thin screwdriver or tweezers before connecting a USB flash drive (it is convenient to use a USB extension cable), and try to determine in the utility (F5). for microchip samsung memory K9BCG08U1A-MCB0 the desired legs were 19-20. The legs are counted from the key (a point in the corner of the microcircuit) in the direction of the legs counterclockwise / clockwise, depending on the case. In our case, the outputs are arranged clockwise.
In our case, the flash drive was detected by the system, so the factory driver was installed without the need to put the controller into test mode. The driver is located in the folder with the utility, along the path ..\UFD_MP\FactoryDriver\WinXP\SMIInfUpdate.exe
Although the driver itself is designed for XP, it was successfully installed on 7-ke.
Here we enter the VID and PID of our flash drive and press the SMI Factory Driver button, after which the driver installation will complete. We reconnect the flash drive to the PC. Now in Device Manager it should look like this:
A review of my first, oddly enough, USB 3.0 flash drive. Was "purchased" for various tests USB hubs. I myself am not a supporter of such types of storage, because I carry out almost all the transfer of information using cloud services, and I use the only old flash drive to reinstall Windows. It is especially pleasing that contacts and photos are saved in a Google account, and now you don’t have to bother and be sad if your smartphone breaks down or is lost. Okay, I digress. In general, today we will consider, test, and also analyze USB flash drive 3.0 from SanDisk with a capacity of 32 GB.
Appearance and packaging
The drive comes in a blister pack with a cardboard base. On the front side there is the name of the company, information about the capacity and speed of reading the flash drive. Most of the inscriptions are in Chinese, because the product is made for the Chinese market.
Behind - data sheet with a code to check for originality.
Inside the package is a code to activate the RescuePRO Deluxe program. Given software allows you to recover data from various drives.
Appearance drive inspires confidence - strict design, metal body, excellent workmanship.
The brushed metal case is engraved with the company name.
Front USB 3.0 connector with blue insert. It is inserted into the port rather tightly.
A plastic "bed" with an eyelet is attached to the back. You can hang it on the keys, but the absence of a plug on the connector will adversely affect the condition of the contacts - dust, dirt and, God forbid, metal dust will clog, which will shorten when you try to insert it into a computer port.
Comparison with an old SanDisk USB 2.0 flash drive that lasts more than a year. The state of appearance, despite the completely plastic case, remains decent.
Disassembly
The insides of the flash drive are cast, it is impossible to see the names of the controller and flash memory. In fact, all elements are in the very USB connector, and the body acts as a cooling element.
Testing
The flash drive is originally formatted in FAT 32 and has a capacity of 28.6 GB.
The program is in memory SanDisk SecureAccess, which is designed to protect your data from unauthorized access.
The Flash Drive Information Extractor does not show the real name of the controller and flash memory, only VID and PID.
H2test confirms that the capacity is fair.
Now let's go through the speed characteristics and measure the read / write speed in CrystalDiskMark version 6.0.0.
Seq Q32T1- sequential read/write test with a depth of 32 in 1 thread. Used to calculate copy speed large files, the size of which is calculated in megabytes and gigabytes.
4KiB Q8T8, 4KiB Q32T1, 4KiB Q1T1- tests of random reading/writing of 4K blocks. They are used to calculate the speed of copying and writing small blocks, the size of which is calculated in kilobytes. The intricate Q formula X T Y is the number of threads ( X) and queue depth ( Y).
When using a test file of 1 GB: the read speed was 132.3 MB / s, and the write speed was 43.33 MB / s, which is quite acceptable for these flash drives. But when using a 5 GB file, the read speed remained almost the same - 140 MB / s, which cannot be said about the write speed - only 17.72 MB / s.
In ATTO Disk Benchmark, we see something in between - 160 MB / s when reading, and 25 MB / s when writing.
With the help of HD Tune Pro, I calculated the approximate amount of a certain cache, after filling which the write speed drops. An abrupt decrease in speed occurs after 1.3 GB of memory is filled, i.e. any small files (tracks, photos) will be recorded relatively quickly, but when you “throw off” large films, you will have to wait.
A few words about temperature. The flash drive is constantly heated due to ill-conceived cooling and small insides. The average temperature is 55 degrees, sometimes it “hot” up to 60-70 degrees. Fortunately, after long tests and trials, "dumps" and reboots were not observed.
Outcome
+ Appearance and metal case+ Warranty
+ High speed data transfer via USB 3.0
high heat
- Drop in speed after filling 1.3 GB cache.
The product was provided for writing a review by the store. The review is published in accordance with clause 18 of the Site Rules.
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