Testing for Faked Flash memory with F3

[Member ModdIt]

After having missing video clips on a crosstour action cam fitted with a new Samsung EVO Plus Micro SDXC Card
it became neccesary to troubleshoot.
Many memory products on Amazon, Alibaba, EBay and other platforms are reported fake.
The advertised capacity is way higher than actualy present, this also apples to HDD SDD USB Sticks, in this case disregarded.

Following a press recommendation the linux tool F3 was installed, it is available in the repo.

Documentation and usage examples are available @
https://fight-flash-fraud.readthedocs.io/en/stable/usage.html#f3probe-the-fastest-drive-test

There is a usage video on Youtube if preferred : https://www.youtube.com/watch?v=qnezKfCTO7E

After inserting the card in a USB adapter and plugging in to our computer we checked the drive ID
with Gparted, there are plenty of other ways available, it was just convenient. Id= /dev/sdd

We decided to use F3 Probe as other read and write tests would take a very long time on a drive this size.

The example command on the website $ sudo ./f3probe –destructive –time-ops /dev/sdb was changed
to work on Antix and point to the correct device. Be careful, if you start the tool with wrong device
parameter you may destroy your installation or lose data, or both.

running $ sudo f3probe –destructive –time-ops /dev/sdd Resulted in the card being declared Ok.
pls. note:Before destructive and time-ops you must have minus minus, due forum software that gets mangled.

Further testing showed the problem was camera software related. Using remote control for the helmet mounted
camera pressing the video record button was waking the camera from a sleep mode which was switched off in settings.
A second push was required to start actual recording.
Crosstour support is informed and in my experience good, hopefuly a software update will be released to fix the issue.
as the camera is pretty good for a budget device.

• This topic was modified 2 years, 8 months ago by ModdIt. Reason: improve label

[Member olsztyn]

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This looks to me a useful utility.
I happened to buy bad MicroSD from China advertised as 128GB but shortly discovered if I put about 16 GB on it it became corrupted. Contacted seller who promised to send replacement which I should have received in another 2-3 months. Never got one and eventually I just lost the money I paid since too much time elapsed.
Although I bought many USB sticks and MicroSD cards from US suppliers and never had similar issue I think such utility can be handy to test to make sure they are good.

Live antiX Boot Options (Previously posted by Xecure):
https://antixlinuxfan.miraheze.org/wiki/Table_of_antiX_Boot_Parameters

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