Thinkware F750 Card Error

My Lexar 64Gb died shortly after upgrading the firmware. I'm now using a 64Gb Samsung Evo plus. Have has some card error messages but these have stopped after several formats in camera.


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And I tested the 128 Gb from Samsung, which ran for a day smoothless and decided overnight to quit working, and wont work anymore now.
Ive tested the 16 Gb card from Thinkware, a 32 Gb from Transcend (from my other dashcam) and the 128 Gb Samsung Evo

Beginning with the Samsung EVO 128 GB (MicroSDXC UHS-I Grade 3 Class 10)
Code:
-----------------------------------------------------------------------
CrystalDiskMark 5.2.2 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :    33.240 MB/s
  Sequential Write (Q= 32,T= 1) :    27.259 MB/s
  Random Read 4KiB (Q= 32,T= 1) :     4.965 MB/s [  1212.2 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :     3.222 MB/s [   786.6 IOPS]
         Sequential Read (T= 1) :    33.135 MB/s
        Sequential Write (T= 1) :    27.262 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     4.623 MB/s [  1128.7 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     2.864 MB/s [   699.2 IOPS]

  Test : 100 MiB [D: 50.4% (60.1/119.2 GiB)] (x5)  [Interval=5 sec]
  Date : 2017/08/12 7:16:13
    OS : Windows 10 Professional [10.0 Build 15063] (x64)

The Transcend 32 GB (MicroSDHC UHS-I Grade 1 Class 10)
Code:
-----------------------------------------------------------------------
CrystalDiskMark 5.2.2 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes


   Sequential Read (Q= 32,T= 1) :    34.067 MB/s
  Sequential Write (Q= 32,T= 1) :     8.361 MB/s
  Random Read 4KiB (Q= 32,T= 1) :     4.096 MB/s [  1000.0 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :     0.950 MB/s [   231.9 IOPS]
         Sequential Read (T= 1) :    32.927 MB/s
        Sequential Write (T= 1) :     7.340 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     3.572 MB/s [   872.1 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     0.852 MB/s [   208.0 IOPS]

  Test : 100 MiB [D: 0.0% (0.0/29.5 GiB)] (x5)  [Interval=5 sec]
  Date : 2017/08/12 7:31:25
    OS : Windows 10 Professional [10.0 Build 15063] (x64)

And the Thinkware 16 GB (MicroSDHC UHS-I Grade 1)
Code:
-----------------------------------------------------------------------
CrystalDiskMark 5.2.2 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :    33.105 MB/s
  Sequential Write (Q= 32,T= 1) :    20.997 MB/s
  Random Read 4KiB (Q= 32,T= 1) :     5.005 MB/s [  1221.9 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :     1.362 MB/s [   332.5 IOPS]
         Sequential Read (T= 1) :    31.876 MB/s
        Sequential Write (T= 1) :    19.504 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     4.180 MB/s [  1020.5 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     0.990 MB/s [   241.7 IOPS]

  Test : 100 MiB [D: 52.2% (7.8/14.9 GiB)] (x5)  [Interval=5 sec]
  Date : 2017/08/12 7:54:24
    OS : Windows 10 Professional [10.0 Build 15063] (x64)

Spec wise you should expect that the Samsung SD would work with the Thinkware F770
I'm going to test the transcend 32 GB card today, just for the fun of it and see what it is going to report.
And going to try to format the Samsung in my other dashcam and insert it back in the Thinkware!

Update; formatted the 128 gb card in the other dashcam, and inserted it again in my Thinkware F770 and it does not continuesly report "insert memory card" So far, so good!!
Now going to see how long it will stay that way!
 
Last edited:
Bwah, after just 1 hour of parking mode the F770 allreade shouts "Insert Memory Card!!"
inserted the slow 32 GB from Transcend and until now (3 hours later and a road trip) no problems???
 
Bwah, after just 1 hour of parking mode the F770 allreade shouts "Insert Memory Card!!"
inserted the slow 32 GB from Transcend and until now (3 hours later and a road trip) no problems???

That's what mine did. Replaced it with the Samsung and get the error message "memory card error. System rebooting" once or twice a week. If I leave it it will work ok after a couple of reboots.


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I had recently purchased an ADATA 64gb card to use in my F770. It worked great for 2 weeks, then it completely shut down, I cant format it, even tried the using 2 programs to try to format the card and nothing. So FYI these dont work either.
 
Thinkware770-128GbSD.PNG
With Memory partition A selected this is my continues memory use, a 61% usage resulting in 7,5 hours of recording.

oh this is the Transend 128 Gb card I'm using

Code:
-----------------------------------------------------------------------
CrystalDiskMark 5.2.2 x64 (C) 2007-2017 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

   Sequential Read (Q= 32,T= 1) :    34.726 MB/s
  Sequential Write (Q= 32,T= 1) :    23.041 MB/s
  Random Read 4KiB (Q= 32,T= 1) :     4.491 MB/s [  1096.4 IOPS]
 Random Write 4KiB (Q= 32,T= 1) :     1.387 MB/s [   338.6 IOPS]
         Sequential Read (T= 1) :    32.482 MB/s
        Sequential Write (T= 1) :    24.310 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     3.187 MB/s [   778.1 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     1.298 MB/s [   316.9 IOPS]

  Test : 100 MiB [D: 61.7% (73.8/119.5 GiB)] (x5)  [Interval=5 sec]
  Date : 2017/09/11 14:52:08
    OS : Windows 10 Professional [10.0 Build 15063] (x64)
 
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