Need help to unbrick Meraki MR18

This is JTAG to debrick any JTAG device. Modem, cable boxes, dish boxes routers.
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c3po
Junior Member
Posts: 2
Joined: Sun Aug 22, 2021 3:11 pm

Need help to unbrick Meraki MR18

Post by c3po »

I tryed to flash OpenWRT firmware but upload hang. After restart, MR18 seems to be bricked. No Ethernet activity. uLink connection works, flash is recognized, but I'm unable to switch to TRAP ON mode. After typing PROGRAM, Debug switch to ON. Any clues or hints?
Copyright (C) 2010-2025
u-Link NT 1.29
Target: MerakiM18
-speed 0
-PROGRAM
-detect
IDCODE 00000001
Atheros
IMPCODE A0414000
EJTAG V2.6
DMA not supported
Found Address= 00000000 H27U1G8F2B
usbbdm
Junior Member
Posts: 8760
Joined: Mon Jul 18, 2005 9:33 pm

Re: Need help to unbrick Meraki MR18

Post by usbbdm »

Use erase and slow programming the boot. Then you can enter trap oN and use fast programming.
c3po
Junior Member
Posts: 2
Joined: Sun Aug 22, 2021 3:11 pm

Re: Need help to unbrick Meraki MR18

Post by c3po »

It worked. MR18 is back to live. Thanks a lot the support.
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