[Q] CM Recovery? topic

Hello together,

i'm experimenting with my Z2 (CM12.1, Sony Firmware, whatever) and everytime i get this "CM Recovery" which has
really little functions. And everytime I try flashing XZDualRecovery with the installer and manually with fastboot, but
when it reboots, i get this CM Recovery again. The only solution i found yet is flashing an old Sony Firmware with
Flashtool and rooting it again but thats really complicated.

Does someone know how to solve this? I also searched on the Internet, but most times i get CWM Recovery, which
is the same for Google :eek:

Thank you for your help in Advance!

EDIT: An example for what i mean: I tried CM12.1 today but i forgot to make a Whatsapp Backup, so I wanted to
restore my old Firmware again, but theres no such feature in CM Recovery.