Meraki MR18

This forum discuss about how to JTAG different devices.
usbbdm
Junior Member
Posts: 8962
Joined: Mon Jul 18, 2005 9:33 pm

Re: Meraki MR18

Post by usbbdm »

Do you power the router on with regular 12V?
How good is your soldering?
esc
Junior Member
Posts: 5
Joined: Thu Apr 09, 2020 10:13 pm

Re: Meraki MR18

Post by esc »

Hello,

yesterday I unplugged mr18 from the socket. when I connected it again - no LED lights or blinks.
The power supply is working, and there are some voltages on the motherboard.
The device warms up as in normal operation.
It does not communicate via Com and also via JTAGNT.

Anyone met with such a case? Is it brick already?
It worked a little over a year, so I think it was a bit weak for Cisco.
usbbdm
Junior Member
Posts: 8962
Joined: Mon Jul 18, 2005 9:33 pm

Re: Meraki MR18

Post by usbbdm »

If you do not get response from the JTAG NT, then something wrong with the hardware.
Check power supply for each chip. (eg. 3.3v maybe the main CPU supply which should be 1.xxv).
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