Hacking_RTL9601C1

Hacking V2801F & TWCGPON657 to suite your ISP Fiber

Issue

GPON market is a mess, plus explicit OMCI cause ONU Stick did not work

With my issue:

V2801F build quality is bad, died from overheating, firmware is good, manage to have an internet connection
TWCGPON657 build quality is good, firmware is bad, when GPON Password is set, stick hang and CPU usage become 100%

Since we dont have source code, try mix and match binary between V2801F and TWCGPON657

Update: V2801F firmware can be used on TWCGPON657 stick. However, XPON Stick will keep rebooting due to invalid VS_AUTH_KEY, you have few seconds telnet access to update VS_AUTH_KEY or echo 3 > /proc/fiber_mode to prevent auto reboot.

Auto Reboot

V2801F

XPON Stick will keep rebooting because invalid VS_AUTH_KEY
Changing MAC Address ELAN_MAC_ADDR can cause invalid VS_AUTH_KEY
You have few seconds to access telnet.
To prevent auto reboot, enter: echo 3 > /proc/fiber_mode (When set. you need disconnect fiber to get access)

##TWCGPON657

No such problem, VS_AUTH_KEY does not exist.

Usage

Please read FLASH_GETSET_INFO.md for how to configure, login, etc...
Advance setting like duplicate ONT Info, read FLASH_GETSET_DEV.md

Modify

You need a Linux PC/VM, Ubuntu as Operating System

Prerequisite

You need these program installed:

tar (extract tar package)
squashfs-tools (extract/repack rootfs)
qemu-user-static (run MIPS VM)

Extract firmware

Extract Firmware package in tar format, we need rootfs file
Extract rootfs partition

unsquashfs rootfs

Repack firmware

Repack rootfs

mksquashfs squashfs-root rootfs.new -b 131072 -comp lzma

Rename rootfs

mv rootfs rootfs.old
mv rootfs.new rootfs

Update md5sum

md5sum fwu.sh rootfs uImage fwu_ver > md5.txt

tar current folder

tar -cvf ../firmware.tar *

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