[FS#3853] NETGEAR WNDR4300v2 Bricked on Power Cycle After Flash

[OpenWrt Bugs]

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A new Flyspray task has been opened.  Details are below. 

User who did this - rvernica (rvernica) 

Attached to Project - OpenWrt/LEDE Project
Summary - NETGEAR WNDR4300v2 Bricked on Power Cycle After Flash
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - High
Priority - Very Low
Reported Version - openwrt-21.02
Due in Version - Undecided
Due Date - Undecided
Details - On a NETGEAR WNDR4300v2 with stock firmware I flash OpenWrt. It works fine after flash (not power cycled *yet*). On the first power cycle the device is fails to start. I'm able to restore the factory firmware using nmrpflash. 


Device: NETGEAR WNDR4300v2
Factory firmware: V1.0.0.58
OpenWrt firmware: openwrt-21.02.0-rc2-ath79-nand-netgear_wndr4300-v2-squashfs-factory.img


I checked the OpenWrt firmware checksum. I did a factory install. On first boot, OpenWrt works just fine. I'm able to adjust settings and Save & Apply them. If I power-cycle the device it fails to boot. The problem exists even if I don't change any settings in OpenWrt. The Power led is amber continuously. The led for ports 1-4 flash once then remain off. After about 18 seconds the cycle repeats. 

I'm able to restore the factory firmware by connecting to port 1. I set a static IP 192.168.1.100/255.255.255.0 Gateway:192.168.1.1. I ran the nmrpflash tool and power On the unit:


> sudo ./nmrpflash -i enp0s25 -f WNDR4300v2-V1.0.0.58.img
Waiting for physical connection.
Advertising NMRP server on enp0s25 ... |
Received configuration request from xx:yy:...
Sending configuration: 10.164.183.252/24.
Received upload request: filename 'firmware'.
Uploading WNDR4300v2-V1.0.0.58.img ... OK
Waiting for remote to respond.
Remote finished. Closing connection.
Reboot your device now.


Once completed the factory firmware is restored.

 

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3853

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