Is it possible to access SDcard on pc without the ROM running?

[haxfar]

Was a bit too eager to try PACman for my GS4, so rather than just choosing Factory Reset in TWRP 2.6, I went with the Advanced Wipe with Dalvik, System, Data and Cache.

Now I can't find the backup on the phone (forgot to copy it to the sdcard), and I can't boot normally up and copy over my backup copy on my pc.

Is there a way to get access to the sdcard without borrowing someone elses phone?
I'm currently sitting with a pc with linux.

 

[Hadron]

USB microSD card readers are very cheap - worth having one around just in case.

Otherwise, does TWRP have the option to mount the card over USB? Recoveries on older devices usually had, but I've only used TWRP with my One, which doesn't have an SD card, so don't know what it can do on a S4.

If not, then if you don't want to wait until you can get a card reader you could see whether you could do it using ADB. Boot into TWRP, then adb push the backup (or, if you have problems, a ROM .zip) to the SD card. If the card isn't mounted you should be able to do that using ADB as well.

This thread is for a different device, but shows someone dealing with a similar problem this way: http://androidforums.com/international-tegra-3-one-x-all-things-root/549962-usb-mount-recovery.html. Likewise here: pushing to the internal storage of a Nexus (again no sd card) - http://androidforums.com/verizon-galaxy-nexus-all-things-root/602128-how-adb-push-rom-sdcard.html. Neither uses an "external sd card", so you may need to modify things slightly, but actually if you push to internal storage that should also be OK - as long as TWRP can see the files that should suffice.