Unable to Format micro SD card

Hi.Technically this is not a Win10 question, but hopefully someone can help.I have an microSD card that I use in a dashcam, which I periodically reformat as the camera stops recording after it gets past a certain filename number. However, this time I can't; it's stuck with the information it contains. I have tried various ways to get it to work, but nothing yet. basic format,clean with CMDformatting with disk manager,removing the partition with disk manager.The card seems to be unlocked and all attributes cleared, but nothing works. Any other ideas? As usual I'd prefer not to install any other software, but use Windows apps only.Matt

Thanks.No the dashcam states there's a problem with the card. Which I fully accept there might be. However, this has happened before and the fix was me formatting the card in the computer and then replacing it where I formatted it again within the DC. This seemed to work before, but not now. Now, I can't do anything with it.

Does the micro SD card has a read only switch?

Thanks for all your comments.The card does not have a 'lock'. (To be honest, I've never seen a micro-SD card with a lock feature, only standard SDs.) The adapter I am using does have a lock which is set to off, but I have just considered the possibility that the adaptor is faulty, so I will try a different one when I can find one. However, that fact that the camera suggested there was a fault, seems to indicate that the card is the cause not the adaptor.Denis, the periodic reformatting [in the camera] is due to the cameras inability to filename above "FILE9999". (The camera is an older one that I now use as a security camera that is permanently on. This is obviously another reason that the card may have given up.) When the card reaches its maximum number, the camera stupidly stops saving data rather than reverts back to "FILE0000". The only way to fix this is to in-camera format the card. However, occasionally, (not very often) I have had to format the card (or reset the partition of the card) with the computer. The information I have previously saved on the card suggests that the card size is correct. It's 32GB and I have accessed all 32GB files on the card.From my limited understanding and from those comments here, I guess the card is stuck fast.

Most likely the device has failed. Flash drives and SD cards are among the least reliable of modern storage media.

Many of these devices have a special read only mode that is activated when specific types of internal errors are detected. This is done to minimize the risk to existing data. This mode is different from any user controllable write protection the device may have. In most cases this mode is non reversible. In some cases this is possible by some device specific method but it is not recommended.