my goodness, space out your issues or bullet them. I’m sure ill probably miss one of your concerns. When you connect your player, and you open it up in my computer you will see “audio device” before anything else.
When you open “audio device” you should see 2 drives, internal and external, you can right-click on eithier one to format it. This process was always the same. If you dont have a card in the player, you wont see the external drive.
If you have the .05P firmware, then you have the latest and the updater isnt going to do anything for you. If you want to roll-back, you would have to ethier a. get the files from sandisk after they email it out. or B. follow the instructions on some of the other threads. You should be able to connect your player in MTP mode, and have the auto updater still notify you that updates are available when they are. The express works in MTP mode only and it works with the updater, theres no reason that this player cant do the same in MTP mode only.
And in regards to the album art, I would have to player with it. Im not even positive you can view pictures from the card on the player. My e200 doesn’t let me do that. If someone beats me to it, even better.
If you are trying to delete something from the player itself, just one file, and cant find it to delete it. The most I can suggest is to un-hide files and folders as well as operating system files. After exploring the drive, you are still unable to find what you need, personally, I would format it and start over. Its easier then me sitting there and looking for one individual file. I find after reloading it on there, I can find it without a problem. It should be noted that I have only ever run into a scenario like that maybe once or twice, I usually find the file… even if I cant find it at first.