? Do you mean that it cannot with your 128G card?I'm getting this from a 3 day old 128gb EVO
I mean it works with the 128 EVO but after 3 days it started producing exactly the behavior the OP describes, where after 45 minutes it starts saying SD card low speed constantly until I power it off. Reformatting it in the app or with guiformat doesn't help.? Do you mean that it cannot with your 128G card?
Please test the card with the tool H2testw when it voice prompts "sd card low speed", do not format by computer or the APP before testing with the tool, so I can know the exact writing speed when it detects card errors!where after 45 minutes it starts saying SD card low speed constantly until I power it off.
H2testw won't allow me to test it without formatting it first. It actually said it would only test a small part and I reformatted before the test that's currently running but it says 28.4 mb/s right now during the test. I'll post the results in here as soon as it finishes. I'm sure if I put this card in my Vantrue N2 pro it would run fine for months. I think your firmware or the circuitry is too sensitive, it should be able to write 1080p video with a lot less than 28.4 mb/s capacity.Please test the card with the tool H2testw when it voice prompts "sd card low speed", do not format by computer or the APP before testing with the tool, so I can know the exact writing speed when it detects card errors!
Yes, only test these small part please!It actually said it would only test a small part
It should be a quality card from the test report! But it is hard to say dashcam faulty since it detects card errors!Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 28.4 MByte/s
Reading speed: 26.6 MByte/s
H2testw v1.4
This is the card that gives sd card low speed errors over and over after being on for 45 minutes or so and then it will stop when I power it off and do the same thing after 45 minutes or so.
Those speeds are the average, it is the slowest speed that causes the most trouble.Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 28.4 MByte/s
Reading speed: 26.6 MByte/s
H2testw v1.4
This is the card that gives sd card low speed errors over and over after being on for 45 minutes or so and then it will stop when I power it off and do the same thing after 45 minutes or so.
Please help me to check the card speed when it voice prompts "sd card low speed", do not format by computer or the APP before testing with the tool, so I can know the exact writing speed when it detects card errors! Thank you!THe 128GB in the B1W has been having the "low speed SD card" problem since day one.
Suggest that you use Sandisk Ultra A1 card or Samsung EVO card!I've been using the Unirex brand card for a while and have had great success. However, yesterday the sun was particularly hot and was baking my B1W for a while. The cam showed a solid green light so I took out the SD card and it was very hot. I then ran a speed test and it was slower. I let the SD card cool down and it's working fine again. I have since put some black tapes around the SD card area on the window to block out some sun and it's been working fine since.
Do heat slow down SD cards? Or am I just imagining things here?
as per the title , after driving for around 45-50 mins the cam speaks out " sd card low speed" over and over , turn the ign off/on allows it to work as normal until another 45 mins or so
Please note It indicates a card error, a low-speed sd card!
I'm getting the same problem now. New and tested good Samsung EVO Select 128GB and I have tried a slightly older identical card with the same results. It does seem to happen in mostly the highest heats, but it has happened twice in the cooler mornings withinh minutes of the cam being started. I had zero problems when using a 64GB EVO Select and old Transcend 400X cards of the same size. All these cards perform flawlessly in my other cams, some which have higher bitrates.
I'm going to try going back to the 64GB EVO Select cards and see what happens. I'll report back here in a day or two.
Phil
I'm getting this same issue on two different B1W's (in two different vehicles). It's random (not only after 45 minutes). Power cycling makes it work again (most the time a single power cycle works, but sometimes you have to do multiples). I'm using Samsung EVO Plus 128Gb cards in both cams. Lost a video I needed from this issue this weekend (found cam wasn't recording when I went to go find video), but its been happening for a while. I just try to always listen for it to fail and reboot. But can't always catch it.
Using H2testw v1.4 on a full (essentially, did NOT delete any files or format it before starting the test, and I've been using the card a year). The B1W is using beta firmware from July 2nd 2018 (if that matters), that I received from here.
Results:
Warning: Only 48038 of 122073 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 69.3 MByte/s
Reading speed: 83.8 MByte/s
H2testw v1.4
Thoughts/suggestions?
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