KND KDR-1662V-E Bad firmware only 4 ch

[logarex 0]

Hi!

 

I need some help. My friend upgrade DVR with new firmware, but failure!

DVR type: KND or K-Life KDR-1662V-E 16 channel DVR or YOKO RYK-9236 dvr 16 ch DVR

 

Current firmware: RYK-923X Series-SDVRx11-1.0.3b97-Yoko.zip

 

OLD firmware:??????

 

Pictures attached

 

Error list:

 

- 4 channel working only

- IR not working

- front panel buttons not working

 

How to recovery original working firmware?

Repair solution?

 

I need all channel, IR and buttons working!

 

Thanks.

[joseph.chen0312 0]

Do you have old one firmware the install DVR again.

[logarex 0]

Do you have old one firmware the install DVR again.

Hi joseph.chen0312.

 

I installed old firmware, but bricked my DVR.

 

- No signal in VGA.

 

- No Boot.

 

How to repairing my DVR?

Pendrive recovery?

or TFTP and Serial debug???