This manual applies for the following models of DVRs:
ZR04ZN; ZR04ZM; ZR04FN; ZR04FM; ZR04CN; ZR04CM; ZR04JS; ZR04TS; ZR04TN
ZR08ZN; ZR08ZM; ZR08FN; ZR08FM; ZR08BN; ZR08BM; ZR08CN; ZR08CM; ZR08KS; ZR08TN
ZR16ZK; ZR16JK; ZR16BK; ZR16CK
(You can find the model number on the label at the bottom of the DVR.)
If this can't help you, please feel free to contact us.