[Q] How to restore backup from encrypted sdcard

[Elfuente]

Before installing CM 13 my Note 8 N5110 was on CivZ-FlexBurst-KK_BL-Rev1.2-N5110 and PhilzTouch recovery. Tablet and sdcard were encrypted. I made a Nandroid Backup and after that I followed the instruction for installing official CM13 nightly:

1. Download ODIN 3.10.7 on a Windows OS

2. Choose your device package and flash it via ODIN :
https://www.androidfilehost.com/?w=files&flid=54013

3. Flash TWRP 3.0 recovery from ODIN or older version of TWRP :
https://www.androidfilehost.com/?w=files&flid=31895

4. Full wipe

5. Install CM-13.0 :
https://www.androidfilehost.com/?w=files&flid=42414
** I467M users must flash N5120 ROM **

6. Install OpenGapps :
http://opengapps.org/?api=6.0&variant=pico...................................

After the installation I realized that it is to early for daily use and wanted to flash back the backup but got in TWRP a md5 error message (probably because of the encrypted backup) when I try to flash the backup. Of course with the cm13 I cant access the files from the sdcard because they are encrypted.

Is there anyone who can help me to get access to my files on the sdcard and or to get the backup working again?

thanks a lot and have a nice day.