A few days ago, I experimented some strange issues with my Lumia 640XL. The Windows Phone Store app started to display error messages when trying update any app, and the pictures received from Whatsapp and Telegram only could be seen in preview mode.
After lose a couple of videos I tried to record, I decided to perform a hard reset of the device. Previously, I extracted the micro-SD card and copied all its contents to my PC's hard disk.
When finished the hard reset configuration phase, the phone was still unable to reinstall all the apps. I extracted the micro-SD again, with the intention of erase the WPSystem folder, but it wasn't possible. The card seems to be readonly protected.
I tried to manipulate the card in a Windows 10 system, in a Windows 7 and in Lubuntu 14.04. I used diferent adaptors, USB, SD...: in all systems the card is shown as readonly filesystem. Neither Linux gparted nor Windows diskpart were able to change this condition.
Any idea of how proceed with this without reformating the card? It is possible the card is fatally damaged or it could be only a problem of corrupted data?
The card is a Lexar 128Gb SDXC, exFAT formatted.