Kirisun DP990 - 11 Troubleshooting; Failed to power on; Communication failed

DP990 DMR Two Way Radio User Manual
11 Troubleshooting
No.
Troubleshooting
Causes and Solutions
1
Failed to power on
A．Check if the battery is used up –charge the battery or change it if
the power is out.
B. Check if the power connecting pole is in proper contact with
battery –try again after re-attachment.
C. Check if the battery contact is contaminated or in poor contact
–clean the contact.
2
Communication
failed
A. Inconsistent frequency between radios – select a channel with
the same frequency.
B. Different CTCSS/CDCSS signaling –re-set with PC.
C. Beyond communication scope.