The subject of microsd card encompasses a wide range of important elements. Micro SD Card not detected by computer after 1st day with dashcam. Taking the adapter out (and in) with the microSD card in it solved my issue. Tried multiple SD card adapters as well. Building on this, my card reader has a microSD slot, so I tried using both an SD card adapter + card reader / and inserting microSD into the card reader and no difference.
Building on this, vIOFO A229 Pro | Memory Card Error (SOLVED) - DashCamTalk. In relation to this, sD Card: I have VIOFO 256GB Industrial Grade microSD Card, U3 A2 V30 SD Card Context: I tried formatting the SD card using Windows - using "GUIFormat" - using "SD Card Formatter" - using "Rufus" I tried FAT32 and exFAT filesystems Nothing helped. A229 Pro still doesn't want to work with the SD card. SD Card is not damaged. Next base 622gw Micro Sd card - DashCamTalk.
The card needs to have a minimum continuous write speed of 48MB/s. For guaranteed functionality and warranty of the SD card itself, I'd suggest a Nextbase Micro SD card. A229 Pro/Plus memory card question - DashCamTalk.

I asked Viofo technical if they have an approved list of memory cards for the A229 Pro/Plus. They responded with three: the Viofo card, Sandisk Max Endurance, and Sandisk Extreme. Any of them can be used up to 512GB. Does anybody have any experience with the Sandisk cards, good or bad?
Please Reformat loop (locked micro SD card) - DashCamTalk. Anyone know how to unlock the card and make it writeable again? Googling unlock microsd card is returning results of full size sd cards with the toggle switch on them which doesn't apply. Are u using SD adapter for MicroSD to put in computer?, if so slider on the side of the adapter could be locked. In this context, sD Card Recommendations?

VIOFO industrial grade microSD card for extended endurance, excellent performance, and reliability. Especially for high durability applications, ideal microSD card for dash cameras, and action cameras. Suitable for harsh conditions, waterproof, anti-X-ray, and anti-magnetic. Transfer speeds of...
SD Card for the VIOFO - DashCamTalk. I bought the Samsung Endurance Pro 256gb card for the dashcam.... and it worked fine until the SD card got filled up. Now that it has to start rewriting over the oldest files, it just gives the "slow card" message and doesn't record anymore. Thinkware U1000 microSD Card - DashCamTalk.


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