http://camerarepair.blogspot.com/2009/07/simple-fix-for-memory-card-locked-error.html.
http://camerarepair.blogspot.com/2007/12/recovering-those-accidentally-lost.html.
” Card Locked”, “Card Mistake”, “No Sd card” and “Format Card”: This tutorial covers restorative fixing actions for these and other SD and SDHC sd card issues. The majority of these strategies are extremely easy, and do not even need opening the cam case.
Vidpro 4-in-1 USB 2.0 Card Reader CR-SDHC (09-2019)
Vidpro 4-in-1 USB 2.0 Card Reader BH #VICRSDHC • MFR #CR- SDHC (09-2019). Paid: $2.99. B&H: https://www.bhphotovideo.com/c/product/1305122-REG/vidpro_cr_sdhc_4_in_1_usb_sd_sshc_card.html/c/product/1305122-REG/4-in-1_USB_2.0_Card_Reader.