1. Start device in backupmenu mode
2. connect it to gparted live [whatever] and select (on device) "mass-storage mode: read&write".
3. You should see your partition scheme in gparted. Check what5 went wrong, and re-repartition it, when appropriate.

Remember, that You can only restore backupmenu backups for same kernel version, as one that was on device, when You created backup. So, if You backuped with kernel-power from -devel, be sure to install it, before trying to restore backup.

In worst case, You can flash everything (including vanilla eMMC layout), and try repartitioning again.

Also, keep in mind, that You should not use ext4 for home partition, if You're not using kernel-power *and/or* You don't know how to modify backupmenu to work with it. In such case, stay with ext3, You aren't losing much.
---

This is quite off-topic here, so in case of further problems, please find similar thread, or, if such one is lacking, create Your own, them drop me a link to it via PM. I'll be glad to help, but not in ED thread.

/Estel