Can Mini Zed Bull programmer read write copy 4D chips? (Solution)

Breaking news for sharing! It’s said that Mini Zed Bull is not good at 4D chip? Now it’s not true! You can use Mini Zed Bull programmer to read/write/copy 4D chip following below steps.

Breaking news for sharing! It’s said that Mini Zed Bull is not good at 4D chip? Now it’s not true! You can use Mini Zed Bull programmer to read/write/copy 4D chip following below steps.



This solution is tested working but please try on your own risk.

(Thanks f2f2’s sharing from DK forum)


Tool you need:

Mini Zed Bull Key Programmer $35.99 + additional 4D chip function!


Program you need to download:

This little program exe make Mini Zed Bull possible to read/write/copy 4D chip. Free download link as below:!Fp5nSRBa!3uX1n79WRX88vJDksDPWrnpFE4sgB7TchtKCe28O9ME


Tested on Windows XP

Read info; Read chip (4D); write 4D works

The PG4 combo box uploads from directory system. (Directory name)

mini-zed-bull-read-write-copy-4d-chip-solution-3 mini-zed-bull-read-write-copy-4d-chip-solution-4 mini-zed-bull-read-write-copy-4d-chip-solution-5 mini-zed-bull-read-write-copy-4d-chip-solution-6

How to install this program step by step?

Unzip the zip file to disk

Connect Zed Bull device with the USB cable

Star EXE list all COM port and Click Start automatic search Zed Bull hardware and create file ZEDBULL.COMPORT

If exist ZEDBULL.COMPORT file and hardware opened okay then no automatic comport search panel

Exe work Read 4D chip; ZEDBULL display RESP data to manual mode edit program RESP textbox

If no exist pg4 data after TPX cloner pg4 read manual mode (COPY 4D; TPX Cloner; …..) pg4 to manual mode edit program PG4 textbox

Pg4 name edit and Click ADD TO DATABASE

All project reload enabled okay

In case of problems emergency exit -> Right Mouse but

If read no correct and cycle read then click Right Mouse; next step Click Reboot; Read chip.


Q&A for you reference:

Q: I have Mini Zed Bull clone but without RJ45 connecter. Does your program work with my zed bull?

A: RJ45 connecter. That’s no problem.

Option1. Right point can be incorporated within MAX232 chip 4 pieces of capacitor.

Connect point 1. GND2. + 5V 3.RxD 4.RxD to Max232 and to RS232 1.RxD 2.TxD 3 GND 4 optional +12V If TPX cloner hardware tape hack.

Option2. Or hack2 no need max232. Zed bull to RS232 connected GND RDX TXD logic0 0Volt Logic1 +5V

Then work TPX cloner, 2 pin build to free RS232 pin.

This 2 version

  1. Serial comport mode -9V +9V communication
  2. Direct mode without voltage driver chip

mini-zed-bull-read-write-copy-4d-chip-solution-7 mini-zed-bull-read-write-copy-4d-chip-solution-8 mini-zed-bull-read-write-copy-4d-chip-solution-9



How to get Zed bull Tokens for the old version

Customer Question: “My next question is I have used the Zed-bull to read and identify some transponder keys , I have noticed the tokens used have now dropped…


Zed-bull Key Programmer Tokens Problem:

Customer Question: “My next question is I have used the Zed-bull to read and identify some transponder keys , I have noticed the tokens used have now dropped to 476 remaining.Every time I read a key it takes one of the tokens.What happens when tokens reach Zero……”

Reply: you send us your machine serial number, and we help you add the tokens, it is free of charge. And the way of adding tokens is as that of updating zed-bull,
Please check the attachment about “Zed-bull
look at the following screens for example:

Before adding Tokens, the token is 213 left

you send us the “Device Serial Number” under the “Device Information”

After we help you add Tokens, the token is now 498.


Hope it help!


Clone 4D transponder with Zed-BULL and TPX Cloner Module

1.Please connect TPX cloner Module to Zed-bull using cable and give power both to Zed-bull and TPX Cloner Module.
Cloning 4D transponder using Zed-BULL & TPX Cloner Module-01


give power to zedbull and tpx cloner-03
2.Please put original key to zedbull antenna, select “Copy” and press “Enter” and “R” Button.
put original key to zedbull-04 select copy chip-05
3. Caution! Put the original key and press R! Don’t remove the key during the process!
4. Press “W” button and select TPX Cloner module.
press w button-07 select tpx cloner module-08
5.Writing, connection and calculating, calculating may take up to 2 minutes.
6, Calculation Ok, please put TPX2 or EH2 to Zed-BULL antenna and press “W” button.
calculation complete-10
7, Verifying, and successful.
verifying and success-11


Toyota 2004 key stolen, can I use a used key from other car?


My friend has Toyota 2004 with smart key, 1 key was stolen but still has 1 smart key working, he want to replace stolen key, I have a used key and reads same chip in zedbull, but I have no experience with this system so don’t want to make working key stop. Key is ID67. the key is like this picture, it is not normal key
Can you tell me what I need to do and what equipment I need for this?
I have zedbull, mvp, sbb, toyota red key maker (never used) x prog etc etc


This key can be cloned with tpx2 transponder  and you can use second hand one (pg1 is B9) without any  problem. This is one of the first smart key from Toyota

Immo reset and add, very easy. Remote manual procedure.
Remember to close the key learning mode, otherwise whatever key you slot in will start the start.
Total lost key case for this type of car, job finish in two minutes

Mini Zed-Bull and JMA TPX cloner pinout


This is an experiment made to manage to connect the zed bull mini transponder key programmer to the JMA TPX cloner box, the cable is an rj11/rj12 connector to a db9 serial port.


To connect china zed bull with TPX cloner or maybe someone use greater version of software (grater than V5.08) to try to upgrade hardware grater than 5.02 (e.g decode 4D chip).


This is a test experiment. You are on your own risk. We are not responsible for the damage.

Tools needed:

Mini Zed-bull clone

JMA TPX Cloner

Both are clones. Both originals should work as well.

Zed-bull DB9 adapter is wired like this:

DB9 – RJ1?

3 —- 4 green

2 —- 3 red

5 —- 5 yellow


Use clone zed-bull hardware 5.02 with TPX 4D cloner.

mini-zed-bull-with-tpx-cloner-3 mini-zed-bull-with-tpx-cloner-1 mini-zed-bull-with-tpx-cloner-2

If you fail to manage to connect TPX 4D cloner box to Zed-Bull Mini key programmer, try to change max232 and capacitor around.