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YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
USB Flash Drive

My 4GB USB flash drive suddenly went dead last Saturday. It was a relatively new model, you know, the flat/compact type, not the traditional thumb-sized counterpart.

I tried, on both Windows 7 and Puppy Linux, reformatting the drive but failed. In both cases, the disk tools were unable to write to the partition table of the drive. So I guess it was some sort of irreversible hardware failure.

Lucky for me, I have backup copies, residing on both an external USB hard disk drive and the Internet, of most of the important files stored in (and buried with) the drive. Data loss was not a big issue here.

What really upset me was the unexpectedly-short lifespan of the drive. I always believe that such USB flash drives should support at least 100000 read/write operations (and should offer a shelf storage time of at least 10 years).

My drive was less than 3 years old. I had, on the average, 20 read/write operations a day, which, I think, is a very reasonable estimate.

Let us do some simple arithmetic:

Total number of read/write operations performed
= 20 * 365 * 3
= 21900

This means that my “deceased” drive got just about one-fifth of the "supposed" life expectancy!

What can I say?

Maybe it was bad luck, something that has entangled me for most of my life.

Crying or Very sad


Last edited by YONG on 10 Jun 2011, 04:11; edited 1 time in total
Post 07 Jun 2011, 04:06
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typedef



Joined: 25 Jul 2010
Posts: 2913
Location: 0x77760000
typedef
i have a USD$39.99 usb 250 gb external hdd...+ a dock with dual usb heads for max power.....lol
Post 07 Jun 2011, 05:45
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JohnFound



Joined: 16 Jun 2003
Posts: 3500
Location: Bulgaria
JohnFound
You have to check the web site of the manufacturer of the flash drive. Very often they provide some tool that can cure these problems (maybe it moves defective sectors or something). For example I am using PQI tool that can repair most of failed drives (well at least temporary).
Post 07 Jun 2011, 06:02
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BOTOKILLER



Joined: 07 Jan 2011
Posts: 154
Location: Ukraine
BOTOKILLER
Manufacturers say 10 years because most people forget that in 1 year)))))
Also, the more complex device - the less its reliabilty
Post 07 Jun 2011, 08:24
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YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
I found the tech spec of my deceased drive here. Wink
Post 07 Jun 2011, 08:42
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Enko



Joined: 03 Apr 2007
Posts: 678
Location: Mar del Plata
Enko
I guess the drive unit apears but you cannot access it write? nor format?

trye using HDD LOW LEVEL FORMAT TOOL.

http://hddguru.com/software/2006.04.12-HDD-Low-Level-Format-Tool/


it saved for me a lot of SD cards. I had one the worked perfectly, tried to install some bootable disk, and in the middle, ERROR.
I coudn't format the drive and couldn access it. Tried to format it using cameras, mobile phones, diferent SD Readers.... nothing helped.

Utill I used the tool a mention, then i could perform a normal format and vuala!!!


other trick you can perform, is trying to format the pendrive using a car stereo or a music box thet permit to input USB Drives.
Post 07 Jun 2011, 13:27
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YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
Enko wrote:
I guess the drive unit apears but you cannot access it write? nor format?
Yeah.
Enko wrote:
trye using HDD LOW LEVEL FORMAT TOOL.
http://hddguru.com/software/2006.04.12-HDD-Low-Level-Format-Tool/
I already tried low level format, but it did not work either.

Anyway, thank you for your input and advice. Wink
Post 08 Jun 2011, 03:54
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Enko



Joined: 03 Apr 2007
Posts: 678
Location: Mar del Plata
Enko
YONG wrote:
Enko wrote:
I guess the drive unit apears but you cannot access it write? nor format?
Yeah.
Enko wrote:
trye using HDD LOW LEVEL FORMAT TOOL.
http://hddguru.com/software/2006.04.12-HDD-Low-Level-Format-Tool/
I already tried low level format, but it did not work either.

Anyway, thank you for your input and advice. Wink

You're welcom Smile

By the way... which brand is it? SanDisk? Kingstone?
Post 08 Jun 2011, 13:19
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YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
I believe it is "brandless". You may refer to the link I gave above for its tech spec.

Wink
Post 08 Jun 2011, 13:31
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Enko



Joined: 03 Apr 2007
Posts: 678
Location: Mar del Plata
Enko
YONG wrote:
I believe it is "brandless". You may refer to the link I gave above for its tech spec.

Wink

perhaps this explains why if failed in the first place Laughing

quility control not so good Rolling Eyes
Post 08 Jun 2011, 15:21
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17270
Location: In your JS exploiting you and your system
revolution
IMO:

branded vs brandless !∝ quality

instead:

branded vs brandless ∝ warranty + advertising costs
Post 08 Jun 2011, 15:27
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Enko



Joined: 03 Apr 2007
Posts: 678
Location: Mar del Plata
Enko
revolution wrote:
IMO:

branded vs brandless !∝ quality

instead:

branded vs brandless ∝ warranty + advertising costs

I wasnt talking really seriously. xD

but in my experience:

its been about 4 years selling microSD cards.
Sandisk failed 0
Kingstone failed about 4-6 of 300-500
Trandisk.... yes Trandisk faild 2 of 8. The cost was only 1 u$d less.


And by the record, some of the Kingstone memories wheren't originals... they where some generic memories that where printed kingstone logo.
Yes, they painted the face in black with some strange paint, and then put the kingstone logo.
Post 08 Jun 2011, 21:23
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