Hardware Specifications

List of software versions

HW V6.0

• V6.0.10P6T1 (OpenFiber)
• V6.0.10P6T4 (OpenFiber)
• V6.0.10P6N7 (OpenFiber)
• V6.0.10N40 (TIM Italy)
• V6.0.10P3T1 (Generic)
• V6.0.10P1T26 (Generic)

HW V7.0

• V7.0.10P6N7 (OpenFiber)
• V7.0.10P6T4 (Generic)

HW V9.0

• V9.0.10P2N1 (OpenFiber)

List of partitions

HW V6.0 and V7.0

This ONT supports dual boot, as visible from the presence of kernel0 and kernel1, which contain the rootfs. The boot images can be swapped with the following command:

upgradetest switchver X

Where X can be 0/1, based on the image you want to boot from.

You can also clone the currently running image into the other slot using this command:

syn_version

Use

Enable Telnet

python3 zte_factroymode.py --user admin --pass admin --ip 192.168.1.1 --port 80 telnet open

You should get this output and credentials to login over telnet:

trying  user:"admin" pass:"admin"
reset facTelnetSteps:
reset OK!

facStep 1:
OK!

facStep 2:
OK!

facStep 3:
OK!

facStep 4:
OK!

facStep 5:
OK!

done
Username: 2W3iqFVt
Password: Eqb8X8Qt

Enable console redirection

To see omcidebug messages on telnet, execute this command (just the first time of each connection):

redir printf

GPON ONU status

Getting the operational status of the ONU

To check the connection status, use the following command:

gpontest -gstate

[gpontest] gpon state is [O5] for O5 state

Getting OLT vendor information

sendcmd 132 omcidebug showmedata 131

This command will print the following output:

##################################
MIB INFO:
         ME CLASS: 131
         DB NAME: olt_g, DBHandle: 32
##################################

<-----MeID[ 0x0000,0 ], Addr[ 0x19a2b1]----->
         Vendorid:48 57 54 43
      EquipmentID:00 00 00 00 00 00 00 00 00 00
                    00 00 00 00 00 00 00 00 00 00
          Version:31 30 00 00 00 00 00 00 00 00
                    00 00 00 00
        TimeofDay:00 00 00 00 00 00 00 00 00 00
                    00 00 00 00
---------------------------------------------------------------------

Querying a particular OMCI ME

sendcmd 132 omcidebug showmedata ID_MIB (eg. 7 for Firmware version)

This command will print the following output:

##################################
MIB INFO:
         ME CLASS: 7
         DB NAME: soft_image, DBHandle: 14
##################################

<-----MeID[ 0x0000,0 ], Addr[ 0x19a011]----->
          Version:V6.0.10N41
     Is committed:01
        Is active:01
         Is valid:01

<-----MeID[ 0x0001,1 ], Addr[ 0x19a031]----->
          Version:V6.0.10N39
     Is committed:00
        Is active:00
         Is valid:01
---------------------------------------------------------------------

GPON/OMCI settings

Setting ONU GPON Serial Number

setmac 1 2176 ZTEG
setmac 1 2177 AABBCCDD

Setting ONU GPON PLOAM password

This can be done easily via the web UI. To do it via the shell use:

setmac 1 2181 1234567890
setmac 1 2178 1234567890

Changing ONU HW/SW Version and gaining persistent telnet access

Needed tools:

• Linux VM or WSL with Python >3.3
• ZTE Telnet enabler
• ZTE Firmware Mod Script
• TFTP server

Download the script ZTE_Firmware_Mod.py and place in the same folder where you have the kernel0 or kernel1 mtd dump taken from step **Backing up ONT partitions for HW/SW version mod**.

Run the script with the following parameters, use -h for help. In this example we are just replacing the firmware version with V6.0.10N40. Put your own version here, it has to be a maximum of 15 characters long. This parameter is mandatory:

If you need to create a partition dump with a different name, please put the correct name instead of kernel0

python3 ZTE_Firmware_Mod.py kernel0 V6.0.10N40 fw_mod.bin

The script will output the following messages, ending with instruction on how to install the patched firmware that has been created:

---------------------------------------
This script is currently working only for ZTE F601v6 shipped with TIM (V6.0.10N40) or OpenFiber (V6.0.10P6N7) firmware
All other versions were not tested, USE IT AT YOUR OWN RISK!
Before proceed make sure to have a GOOD BACKUP of all your ONT partitions.
Please refer to Hack-GPON Wiki for how-to: https://hack-gpon.org/ont-zte-f601/
---------------------------------------
To proceed please enter 'y', otherwise 'n' to exit: y

---------------------------------------
Step 1: Patching zImage and fix uImage Header..
------: Done in 4.846 secs
Step 2: Add back ZTE Header and Firmware Version..
------: Old FW version V6.0.10N39
------: New FW version V6.0.10N40
------: Done in 0.008 secs
Step 3: Write firmware file..
------: Done in 0.003 secs

---------------------------------------
How to flash:

Copy firmware file fw_mod.bin into your TFTP server and flash is using this procedure on the ONT over telnet:

cd /var/tmp
tftp -l fw.bin -r fw_mod.bin 192.168.1.100 -g
fw_flashing -d 0 -r 0 -c 1 -f fw.bin

After you get prompt back, erase old configurations:

rm /userconfig/cfg/*.xml

Create dummy files for HW\SWVer spoofing:
!!! CHANGE IT BASED ON YOUR ORIGINAL ONT !!!
echo V6.0 > /userconfig/cfg/hwver
echo V6.0.10N40 > /userconfig/cfg/swver

Then run these commands to switch software bank and reboot the ONT:

upgradetest switchver
reboot
---------------------------------------
Good luck!

Two last steps!

If you are swapping from TIM to OpenFiber firmware, or viceversa, run these two command before rebooting the ONT based on the firmware version:

From OpenFiber V6.0.10P6N7 to TIM V6.0.10N40: upgradetest sfactoryconf 97

From TIM V6.0.10N40 to OpenFiber V6.0.10P6N7: upgradetest sfactoryconf 116

After the ONT has rebooted and you can access again, telnet can be enabled on each reboot. To do this, run again zte_factroymode.py to open new session to it. When you are in, execute these commands:

sendcmd 1 DB set TelnetCfg 0 TS_Enable 1
sendcmd 1 DB set TelnetCfg 0 Lan_Enable 1
sendcmd 1 DB set TelnetCfg 0 TS_UName root
sendcmd 1 DB set TelnetCfg 0 TS_UPwd root
sendcmd 1 DB addr FWSC 0
sendcmd 1 DB set FWSC 0 ViewName IGD.FWSc.FWSC1
sendcmd 1 DB set FWSC 0 Enable 1
sendcmd 1 DB set FWSC 0 INCName LAN
sendcmd 1 DB set FWSC 0 INCViewName IGD.LD1
sendcmd 1 DB set FWSC 0 Servise 8
sendcmd 1 DB set FWSC 0 FilterTarget 1
sendcmd 1 DB saveasy

Reboot the ONT and a telnet interface will be available. You can login using root\root as credentials.

Just for OpenFiber firmware

In case you want add new a admin user instead of using the embedded credentials, run these commands before rebooting the ONT:

sendcmd 1 DB set DevAuthInfo 5 Enable 1
sendcmd 1 DB set DevAuthInfo 5 User superadmin
sendcmd 1 DB set DevAuthInfo 5 Pass superadmin
sendcmd 1 DB set DevAuthInfo 5 Level 0
sendcmd 1 DB set DevAuthInfo 5 AppID 1
sendcmd 1 DB saveasy

Reboot the ONT and you can login to the WebUI using superadmin\superadmin as credentials with full unlocked menus.

Advanced settings

Backing up ONT partitions for HW/SW version mod

This step is suggested if you want to replace firmware on the ONT to spoof HW and SW versions:

Needed tools:

• Linux VM or WSL with Python >3.3
• ZTE Telnet enabler
• ZTE_Firmware_Mod
• TFTP server

First step is to login over telnet with zte_factroymode.py, then execute ALL these commands for a full backup:

Go to /tmp folder to create tmp files

cd /tmp

Dump mtd1 (uboot+config)

 cat /dev/mtd1 > uboot_config

Copy the dumped firmware via TFTP to you VM or Windows machine with this command:

tftp -l uboot_config -r uboot_config -p 192.168.1.X (where X is the IP of your PC)

Delete dump:

 rm uboot_config

Dump mtd2 (kernel0)

 cat /dev/mtd2 > kernel0

Copy the dumped firmware via TFTP to you VM or Windows machine with this command:

tftp -l kernel0 -r kernel0 -p 192.168.1.X (where X is the IP of your PC)

Delete dump:

 rm kernel0

Dump mtd3 (kernel1)

 cat /dev/mtd3 > kernel1

Copy the dumped firmware via TFTP to you VM or Windows machine with this command:

tftp -l kernel1 -r kernel1 -p 192.168.1.X (where X is the IP of your PC)

Delete dump:

 rm kernel1

Dump mtd4 (others)

 cat /dev/mtd4 > others

Copy the dumped firmware via TFTP to you VM or Windows machine with this command:

tftp -l others -r others -p 192.168.1.X (where X is the IP of your PC)

Delete dump:

 rm others

Dump mtd5 (param_tags)

 cat /dev/mtd5 > param_tags

Copy the dumped firmware via TFTP to you VM or Windows machine with this command:

tftp -l param_tags -r param_tags -p 192.168.1.X (where X is the IP of your PC)

Delete dump:

 rm param_tags

Dump mtd6 (usercfg)

 cat /dev/mtd6 > usercfg

Copy the dumped firmware via TFTP to you VM or Windows machine with this command:

tftp -l usercfg -r usercfg -p 192.168.1.X (where X is the IP of your PC)

Delete dump:

 rm usercfg

Changing region code

ZTE has created various region codes that load default values based on the local ISP. This configuration can be changed using this command:

upgradetest sfactoryconf X

Where X is the number of supported regioncode into file /etc/init.d/regioncode, here is an example from TIM V6.0.10N40 firmware:

# cat /etc/init.d/regioncode
2:Lithuania
15:Portugal
17:TelMex
19:Turkey
32:JazzTel
38:Czechia
54:Viettel
59:SeteTec
63:Ais
88:GerNetCologne
97:ItalyTI
104:IndiaRJIO
110:IndiaGTPL
112:BrazilTIM
115:ItalyOpenFiber
116:ItalyTescali
118:PolandINEA
139:MultiLaser
198:Manufacture

Random notes

• Both F601v6 and F601v7 read the software version exposed through the gpon_omci deamon from each kernel partition header, so the only way to spoof this parameter is to change the version in the header and recalculate CRC, otherwise the bootloader will refuse to load the image.
• TIM’s F601v6s use HWVer VDF, this can be changed back to V6.0 issuing this command via telnet: setmac 1 32770 3
• The F601v7 is mounted ‘upside down’ to save on waveguides, the LEDs would be on the bottom of the PCB, so it would have to be turned upside down to make it cooler…
• The F601v6 turns on and runs even with 9V input.
• The F601v7 turns on and runs even with 5V input.

Miscellaneous Links

• ZTE config.bin decoder
• Usource GPON ONU STICK
• GPON module Dfp-34g-2c2 sfp
• ZTE Telnet enabled
• ZTE Firmware Mod Script

Teardown and other photos

HW V6.0

HW V7.0

HW V9.0