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Compartion: Carprog full v7.28 vs. carprog v8.21 perfect online version vs. carprog v9.31

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【Spring Festival Sale】CARPROG FULL V8.21 Firmware Perfect Online Version

【Spring Festival Sale】CARPROG FULL V8.21 Firmware Perfect Online Version   Item No. SE53-B

Latest price:US$99.00 Buy It Now:US$89.99 9% off    Free Shipping       Click Here to Shop
Newest Firmware V8.21 CARPROG with All 21 Adapters
Contain much more authorizations than V4.74 or other low version CARPROG
Including two version software: V8.21 and V9.31, with V8.21 software need activation but you will automatically get token renew after it used up.


Product Carprog with 21 adapters
Software version Carprog V7.28 Carprog V8.21 firmware version (SE53-B) Carprog V9.31 (SE53)
Serial number (S/N) 081105CAR001773I 150428CAR00542UA 081105CAR001773I
Online NO Yes, it’s the super online version. NO
Activation Activation after delivery Activation after delivery Activation before delivery;


Directly use it

Operating system Win XP, Win 7 Win XP,Win7,


Win XP,Win7,


Vehicle coverage V7.28 carprog support the least models among the three versions. V8.21 Carprog’s firmware is authorized more cars so that it support the most vehicle models. V9.31 carprog supports more vehicle models than v7.28
Models coverage: caprog v8.21 > v9.31 > v7.28
Software All carprog versions above can work well with ECU-OPEL, OPEL CAN, PSG16, OPEC28 software.
Tokens automatically get token renew after it used up
Function Airbag reset —> BEST 
Dashboard programming,

immo (read pin code), 
MPU & EEPROM programming,

radio decoding.

User feedback Carprog v9.31 read and erase BMW EEPROM M35080
Conclusion Carprog v8.21 is the best option for the most vehicle coverage and online use, while carprog 9.31 as a plug-and-play kit, is more convenient to use.

2.How to install Carprog full 8.21 online version?

Here is the instruction on installing and activating Carprog V8.21 perfect online version China clone on Windows 7 operating system by engineer.

Software version: V8.21

Optional operating system:

Windows XP, WIN7, WIN8, WIN10

Part 1 – Carprog 8.21 activation & installation

Establish a new folder named “8.21” on Desktop

Copy all the files in carprog 8.21 DVD disk (E:) to the new folder “8.21” on Desktop


Open “Carprog v8.21” application

Send the hardware ID to the dealer to get the activation code



Run Carprog 8.21 interface automatically, then close it


Part 2 – Carprog v8.21 read EEPROM M35080

Automatically installing device driver software…

Reading device info…

Select EEPROM-> 93C 24C 95x v2.6

Click on the tool icon

Select M35-> 35080-> read/ verify, then click OK


Click the fourth icon on the top icon column for initialization




Verify ok





Ps: Carprog V9.31 no need activation.

If you need to update your carprog full v4,v5,v6.8 or v7.28 to V8.21 online version,you can buy the V8.21 carprog main unit without buying the full 21 adapters.

3.Carprog 8.21 change km for Skoda Yeti 2012

Today, OBD2eShop engineers managed to change mileage for Skoda Yeti 2012 with Carprog 8.21 clone. And here is the test report.
Skoda Yeti 2012
Miles before correction:
58112 km


Process of odometer correction:
Run Carprog 8.21 program





Change KM


The current dashboard display




Old value: 58112km

Input new value: 36102ml

Km display after change:

Luckily, Carprog v8.21 change km SUCCESS!
Note: Chinese Carprog is good at airbag reset, for other functions, luck is definitely necessary :D maybe because of firmware default

4.How to solve Carprog V8.21 Online Version “Antena not connected


Problem 1:

Q: I try to prepare key for Megamos Crypto with carprog v8.21 clone online version. It it failed and carprog gave me error “Antena not connected”. I test the function with other cars, but all the same error.


A: You are trying to program keys with carprog 8.21, but you do not connected to antena. If you connect to antena and still the same error, it indicates that the function is not yet available.


Problem 2:

I have installed and activated caprog 8.21 software. I need to do Caddy 2007 mileage correction. Carprog cannot connect to CAN and showed me connect error (shown ad picture below). I changed laptops and tested on other cars, but still the same error.




1; Please better run carprog software on our operating system.

2; Test 93c46 chip to check if it works good on this function.

If carprog v8.21 online version can read and write  93c46 chip under EEPROM menu. Then the problem is not the operating system. Perhaps  the eeprom chip is not supported.

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