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Hard Brick on R7800

Tayzer
Follower

Hard Brick on R7800

Not quite sure how, but I seem to have bricked my R7800, fairly hard. I have no response or traffic from the serial connection, and there is no ping of response to tftp. Im trying to setup JTAG to see if anything is even running, and possibly kick the router to boot. Worst case, need JTAG to write new bootloader. Not very experienced with JTAG, only done it a couple times, so looking for info on the JTAG port and pinout on the R7800, a fresh bootloader file would be awesome too. Thanks.

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FURRYe38
Guru

Re: Hard Brick on R7800

Have you tried this process?

https://kb.netgear.com/22688/How-to-upload-firmware-to-a-NETGEAR-router-using-TFTP

 

if this fails, something you will need to contact NG support about. 

 

My Setup (Cable 1Gbps/50Mbps)>CAX80 v2.1.2.1(LAG Disabled)>RBK853 v4.6.3.16
Additional NG HW: C7800/CM1100/CM1200CM2000, Orbi CBK40, CBR750, RBK50(v22), SXR30(v110), R7000(v34), R7800(v84), R7960P(v82), EX7500/EX7700, XR450(v120) and WNHDE111

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Message 2 of 4

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FURRYe38
Guru

Re: Hard Brick on R7800

Have you tried this process?

https://kb.netgear.com/22688/How-to-upload-firmware-to-a-NETGEAR-router-using-TFTP

 

if this fails, something you will need to contact NG support about. 

 

My Setup (Cable 1Gbps/50Mbps)>CAX80 v2.1.2.1(LAG Disabled)>RBK853 v4.6.3.16
Additional NG HW: C7800/CM1100/CM1200CM2000, Orbi CBK40, CBR750, RBK50(v22), SXR30(v110), R7000(v34), R7800(v84), R7960P(v82), EX7500/EX7700, XR450(v120) and WNHDE111

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Message 2 of 4
JamesGL
Master

Re: Hard Brick on R7800

Hi Tayzer,

 

Please try the suggestion of FURRYe38 and let us know if it works.

Message 3 of 4
JamesGL
Master

Re: Hard Brick on R7800

Hi Tayzer,

 

We’d greatly appreciate hearing your feedback letting us know if you need further assistance.

Message 4 of 4
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