• https://www.amazon.fr/gp/bestsellers/computers/323636011/ref=rzr-21#
• https://www.dealabs.com/groupe/micro-sd#
• https://www.cameramemoryspeed.com/reviews/sd-cards/
• https://www.cameramemoryspeed.com/sd-memory-card-faq/reading-sd-card-cid-serial-psn-internal-numbers/# IdS

• 46E / 64 : https://www.amazon.fr/SanDisk-SDSDQU-064G-U46A-microSDXC-bicolore-Adaptateur/dp/B007JTKM30/ref=rzr-21# 40EuR

• 6 E / 32 : https://www.amazon.fr/dp/B07Z4GX6J2/ref=rzr-21# KingSton
• 8 E / 32GB : http://www.emtec-international.com/fr/memory-cards/microsd/microsd-class-10-classic# LoW BitRate Write
• 8.2 E / 32GB : https://www.amazon.fr/dp/B06XW91D41/ref=rzr-21# SamSung
  • ean=8806088676524 samsung.com/memorycard# model=MB-MP32G modelcode=MB-MP32GA/EU made in philipines
  • https://www.samsung.com/uk/memory-storage/evo-sd-card/MB-SP32DEU/# Class10
  • https://youtu.be/IFp0xkv5c9w?t=223# SdXc ⇒ not class10 logo?
  • https://youtu.be/5L3MFGTlcns?t=108# SdHc pas de logo c10
  • https://s3.ap-northeast-2.amazonaws.com/global.semi.static/Samsung_Card-UFD_Authentication_Utility_Manual_English_1.3.pdf
• 10 E / 32GB : https://www.bureau-vallee.fr/carte-micro-sd-32go-hc-class-10-150x-70983.html#
• 12 E / 32 : https://www.amazon.fr/dp/B00APCMMDG/ref=rzr-21# TS32GUSDU1E Transcend

• 5 E / 16GB : https://www.amazon.de/gp/product/B073K14CVB/ref=rzr-21# SanDisk ODroidC1
• 8 / 15GB : https://www.amazon.fr/SanDisk-microSDHC-Adaptateur-homologu%C3%A9e-Nouvelle/dp/B089DPCJS1/ref=rzr-21# SanDisk
• 10 E / 16GB : https://www.action.com/fr-fr/p/carte-micro-sdhc-sandisk-sandisk-/#

• 20E / 4 : https://www.amazon.com/dp/B000VX6XL6/ref=rzr-21#

• https://www.sdcard.org/developers/overview/speed_class/# U1 ~= C10
• https://www.cameramemoryspeed.com/sd-memory-card-faq/reading-sd-card-cid-serial-psn-internal-numbers/# ManId

• https://fr.aliexpress.com/item/4000152379723.html#
• https://fight-flash-fraud.readthedocs.io/en/stable/introduction.html#quick-capacity-tests-with-f3probe
• https://en.wikipedia.org/wiki/SD_card#
• https://forums.sandisk.com/t/my-sd-card-32gb-is-original-or-fake/33940

Tests running on Levevo g on combo port with external usb adapter:

time sudo f3probe --destructive --time-ops $disk
F3 probe 7.1
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

WARNING: Probing normally takes from a few seconds to 15 minutes, but
         it can take longer. Please be patient.
         
Good news: The device `/dev/disk/by-id/usb-Generic-_USB3.0_CRW_-0_000000021716-0:0' is the real thing

Device geometry:
                 *Usable* size: 14.84 GB (31129600 blocks)
                Announced size: 14.84 GB (31129600 blocks)
                        Module: 16.00 GB (2^34 Bytes)
        Approximate cache size: 0.00 Byte (0 blocks), need-reset=no
           Physical block size: 512.00 Byte (2^9 Bytes)

Probe time: 3'26"
 Operation: total time / count = avg time
      Read: 804.9ms / 4814 = 167us
     Write: 3'23" / 4192321 = 48us
     Reset: 1us / 1 = 1us

real    3m26.460s
user    0m1.934s
sys     0m1.334s

$ time sudo f3write  /tmp/tmp-root.tmp/mnt/dev/disk/by-label/20200817
F3 write 7.1
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

Free space: 14.51 GB
Creating file 1.h2w ... OK!                                 
Creating file 2.h2w ... OK!                          
Creating file 3.h2w ... OK!                          
Creating file 4.h2w ... OK!                          
Creating file 5.h2w ... OK!                          
Creating file 6.h2w ... OK!                          
Creating file 7.h2w ... OK!                          
Creating file 8.h2w ... OK!                          
Creating file 9.h2w ... OK!                          
Creating file 10.h2w ... OK!                          
Creating file 11.h2w ... OK!                         
Creating file 12.h2w ... OK!                        
Creating file 13.h2w ... OK!                        
Creating file 14.h2w ... OK!                        
Creating file 15.h2w ... OK!                       
Free space: 16.00 MB
Average writing speed: 9.14 MB/s

real    31m7.661s
user    0m9.307s
sys     0m39.483s

 time sudo f3read  /tmp/tmp-root.tmp/mnt/dev/disk/by-label/20200817
[sudo] password for rzr: 
F3 read 7.1
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

                  SECTORS      ok/corrupted/changed/overwritten
Validating file 1.h2w ... 2097152/        0/      0/      0
Validating file 2.h2w ... 2097152/        0/      0/      0
Validating file 3.h2w ... 2097152/        0/      0/      0
Validating file 4.h2w ... 2097152/        0/      0/      0
Validating file 5.h2w ... 2097152/        0/      0/      0
Validating file 6.h2w ... 2097152/        0/      0/      0
Validating file 7.h2w ... 2097152/        0/      0/      0
Validating file 8.h2w ... 2097152/        0/      0/      0
Validating file 9.h2w ... 2097152/        0/      0/      0
Validating file 10.h2w ... 2097152/        0/      0/      0
Validating file 11.h2w ... 2097152/        0/      0/      0
Validating file 12.h2w ... 2097152/        0/      0/      0
Validating file 13.h2w ... 2097152/        0/      0/      0
Validating file 14.h2w ... 2097152/        0/      0/      0
Validating file 15.h2w ... 1030896/        0/      0/      0

  Data OK: 14.49 GB (30391024 sectors)
Data LOST: 0.00 Byte (0 sectors)
               Corrupted: 0.00 Byte (0 sectors)
        Slightly changed: 0.00 Byte (0 sectors)
             Overwritten: 0.00 Byte (0 sectors)
Average reading speed: 14.53 MB/s

real    17m3.820s
user    0m32.272s
sys     0m31.765s

# Now testing on Olinuxino micro

Average writing speed: 8.36 MB/s



more  /sys/devices/platform/soc@1c00000/1c0f000.mmc/mmc_host/mmc0/mmc0\:2105/* | cat 

/sys/devices/platform/soc@1c00000/1c0f000.mmc/mmc_host/mmc0/mmc0:2105/date
::::::::::::::
01/2020

/sys/devices/platform/soc@1c00000/1c0f000.mmc/mmc_host/mmc0/mmc0:2105/name
::::::::::::::
APPSD

I can assume this is not a class10 SdCard from SanDisk

• http://stackoverflow.com/questions/1837491/retrieve-sd-card-serial-number-and-manufacturer-under-linux

mmc0: error -110 whilst initialising SD card

• http://www.bunniestudios.com/blog/?p=918
• https://www.makeuseof.com/tag/5-mistakes-avoid-buying-next-microsd-card/# HardWare

Read only

sudo f3probe /dev/disk/by-id/usb-Generic-_USB3.0_CRW_-0_0000000?????-0:0
F3 probe 7.2
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

WARNING: Probing normally takes from a few seconds to 15 minutes, but
         it can take longer. Please be patient.

Probe finished, recovering blocks... Done

Bad news: The device `/dev/disk/by-id/usb-Generic-_USB3.0_CRW_-0_0000000?????-0:0' is damaged

Device geometry:
                 *Usable* size: 0.00 Byte (0 blocks)
                Announced size: 29.76 GB (62410752 blocks)
                        Module: 32.00 GB (2^35 Bytes)
        Approximate cache size: 0.00 Byte (0 blocks), need-reset=no
           Physical block size: 512.00 Byte (2^9 Bytes)

Probe time: 6'55"

[   33.764970] mmc1: Timeout waiting for hardware interrupt.
[   33.765033] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========
[   33.769380] mmc1: sdhci: Sys addr:  0x00000000 | Version:  0x00002e02
[   33.775802] mmc1: sdhci: Blk size:  0x00000200 | Blk cnt:  0x0000000f
[   33.782225] mmc1: sdhci: Argument:  0x00108000 | Trn mode: 0x00000023
[   33.788648] mmc1: sdhci: Present:   0x01e80106 | Host ctl: 0x0000001f
[   33.795071] mmc1: sdhci: Power:     0x00000001 | Blk gap:  0x00000000
[   33.801494] mmc1: sdhci: Wake-up:   0x00000000 | Clock:    0x00000007
[   33.807918] mmc1: sdhci: Timeout:   0x0000000e | Int stat: 0x00000000
[   33.814343] mmc1: sdhci: Int enab:  0x02ff900b | Sig enab: 0x02ff100b
[   33.820766] mmc1: sdhci: AC12 err:  0x00000000 | Slot int: 0x00000000
[   33.827189] mmc1: sdhci: Caps:      0x322dc8b2 | Caps_1:   0x00008007
[   33.833611] mmc1: sdhci: Cmd:       0x0000193a | Max curr: 0x00000000
[   33.840037] mmc1: sdhci: Resp[0]:   0x00000900 | Resp[1]:  0x5b590000
[   33.846462] mmc1: sdhci: Resp[2]:   0xee137f80 | Resp[3]:  0x0a40004c
[   33.852880] mmc1: sdhci: Host ctl2: 0x00000000
[   33.859306] mmc1: sdhci: ADMA Err:  0x00000003 | ADMA Ptr: 0x00000000bec88224
[   33.863644] mmc1: sdhci: ============================================
[   44.005000] mmc1: Timeout waiting for hardware interrupt.
[   44.005065] mmc1: sdhci: ============ SDHCI REGISTER DUMP ===========
[   44.009410] mmc1: sdhci: Sys addr:  0x00000000 | Version:  0x00002e02
[   44.015831] mmc1: sdhci: Blk size:  0x00000200 | Blk cnt:  0x00000000
[   44.022254] mmc1: sdhci: Argument:  0x00000000 | Trn mode: 0x00000023
[   44.028678] mmc1: sdhci: Present:   0x01e80006 | Host ctl: 0x0000001f
[   44.035102] mmc1: sdhci: Power:     0x00000001 | Blk gap:  0x00000000
[   44.041525] mmc1: sdhci: Wake-up:   0x00000000 | Clock:    0x00000007
[   44.047949] mmc1: sdhci: Timeout:   0x0000000e | Int stat: 0x00000000
[   44.054373] mmc1: sdhci: Int enab:  0x02ff900b | Sig enab: 0x02ff100b
[   44.060797] mmc1: sdhci: AC12 err:  0x00000000 | Slot int: 0x00000000
[   44.067221] mmc1: sdhci: Caps:      0x322dc8b2 | Caps_1:   0x00008007
[   44.073643] mmc1: sdhci: Cmd:       0x00000c1b | Max curr: 0x00000000
[   44.080066] mmc1: sdhci: Resp[0]:   0x00000c00 | Resp[1]:  0x00000000
[   44.086491] mmc1: sdhci: Resp[2]:   0x00000000 | Resp[3]:  0x00000000
[   44.092912] mmc1: sdhci: Host ctl2: 0x00000000
[   44.099336] mmc1: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0x0000000000000000
[   44.103674] mmc1: sdhci: ============================================
[   44.111888] mmcblk1: error -110 sending stop command, original cmd response 0x900, card status 0xe00
[  644.119641] mmc1: Card stuck in programming state! mmcblk1 card_busy_detect

[  152.805401] mmc1: card never left busy state 
[  152.805466] mmc1: error -110 whilst initialising SD card
$ sudo partprobe 
Warning: Error fsyncing/closing /dev/mmcblk0rpmb: Input/output error

• https://www.reddit.com/r/archlinux/comments/ebxkda/card_never_left_busy_state/#
• https://superuser.com/questions/849699/error-whilst-initializing-sd-card-on-linux#

• https://www.bunniestudios.com/blog/?page_id=1022# FakE
• http://www.kingston.com/china/verifyflash#

HoW to Get SeriaL NumbeR of SdCard :

• http://superuser.com/questions/696792/finding-attributes-of-mounted-sd-card
• http://blog.bones-embedded.ch/read-sd-card-serial-number-from-cid/
• http://stackoverflow.com/questions/1837491/retrieve-sd-card-serial-number-and-manufacturer-under-linux#

Extra :

• https://www.aliexpress.com/item/SD-to-TF-Micro-SD-T-Flash-Card-Reader-Adapter-FPC-Extension-Cable-for-Car-GPS/1890061833.html#
• https://gist.github.com/ilyaigpetrov/e451200ea9b59e8c348422a8f9c5e8e5# TooL BencH

@TaG: LenovO RealteK sd storage memory pictures linux-kernel RtS