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How to downgrade Micropod ii Witech?

The answer is it’s not possible to downgrade if using micropod ii  clone .

downgrade is not a simple process and sometimes bad quality clone may be lost.

downgrade is needed in next situations:

return from witech 2 to witech 1.

make vci pod/micropod compatible with cda.

if micropod setup utility failed during update.

Supposing your got Witech 2.0 warning:

“This vehicle is supported by wiTECH 2.o software. This vehicle is no longer supported by wiTECH 1.0. Please use wiTech 2.0 to service this vehicle. You will return to discovery. ”


Wrong solution:

To update to wiTECH 2.o software from wiTECH 1.o


You may think you have online account and tried to update, actually it will have risk of being locked by Chrysler server or you can’t downgrade anymore.


Correct solution offered by engineer:

Option 1:

Remove new version V17.04.27, download and install lower version witech 17.03.10.

Free download witech 17.03.10


Option 2:

Reinstall the computer operating system, and install wiTech V17.04.27 software again.

Free download wiTech V17.04.27 software.

Good luck!


YH35XX programmer + Simulator correct 35128 odometer: No red dot

F chassis 35128WT eeprom odometer correction best solution: Yanhua YH35XX programmer + Simulator, because it has no risk, no red dot and easy to use. It wins many similar tools i.e Smelecom 35128 emulator (supports a part of 35128WT eeprom) and VVDI Pro (can't work yet).


Prepare: one computer

Features: No risk, no red dot. Easy to use.


  1. Remove the original 35XX EEPROM from the odometer and solder it to the adaptor board.Then clamp the adaptor board with the solder-free clamp. Ensure the direction of the adaptor board and solder-free clamp is correct.


yh35xx-programmer-simulator-user-manual-02 yh35xx-programmer-simulator-user-manual-03



2.Connect the YH35XX programmer to the USB port of the PC, click on "computer" and it will recognize a usb flash drive named 35XX programmer.

yh35xx-programmer-simulator-user-manual-04 yh35xx-programmer-simulator-user-manual-05



3.Click on U disk35XXprogrammer, double-click "BMW_ODO_Standard_edition. exe" to open the software.


4.Wait until it pops up: Programmer connection successful, then run it.



5.Choose the EEPROM model and click on "Read DATA+ID", check whether the mileage that is read out is the same as the actual mileage.


6.Click on "Save Data File", save the original data of original EEPROM to the folder.



7.Hold the handle of the simulator, clamp the Simulator with the solder-free clamp. Pay attention to the direction. Then connect the solder-free clamp to the programmer, connect the programmer to the PC.

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8.Choose the EEPROM model, click on "Load Data File", choose the corresponding data of original EEPROM and load it. Check whether the displayed mileage is the same as the mileage displayed in odometer.

yh35xx-programmer-simulator-user-manual-13 yh35xx-programmer-simulator-user-manual-15


9.Once the mileage is confirmed, click on "Write DATA+ID", write the original data into the Simulator.


10.Click "Read Data+ID", read the data written into the Simulator, and check the mileage.


11.After the mileage is confirmed, click on "Mileage modification" and input the mileage you want.

yh35xx-programmer-simulator-user-manual-17 yh35xx-programmer-simulator-user-manual-18


12.After confirming the input mileage is correct, click on "Write DATA+ID" to write the modified data into the Simulator.



13.After the data is written, click on "Read DATA+ID" to check whether the mileage modification is correct.



14.If the displayed mileage is the same as what you want, cut off the handle of the Simulator, and solder the Simulator to the original EEPROM position. Pay attention to the EEPROM direction. Install the odometer back to the car to verify whether the mileage modification is successful.


Yanhua YH35XX programmer + Simulator tech support is always available at



VOCOM II: Change Volvo Truck's Chassis ID in TechTool Offline

Topic: VOCOM II 88894000 TechTool Offline change Volvo Truck's Chassis ID.


Vocom II interface Vs. Vocom I interface:

Improved LED indicators

Improved quality of cables

Military standard on connectors

Better liquid and dust ingress protectors

Metal casing and rubber bumpers for better protection

Operates from -40 Celsius to +85 Celsius

Shock resistance: 2 meters


Here we go for changing Volvo Truck's Chassis ID in TechTool Offline:

Click on "Tech tool" icon.


Tick off "Work offline", then click on "OK".


Version 2, FH12.


Vocom II (USB) s connected to the computer.

Product data: collecting parameter data...


Click on "Diagnose" and get DTCs.



Click on "Program", then "Service and maintenance".


Parameter, programming.


All levels -> Start -> tick off "the engine must be switched off" and "The parking brake must be applied".



Read data from the control units...


Chassis ID B 220228



Open "Tech Tool" to enter "Chassis", then click on "Chassis ID", then "Set Programmable", then "OK" (Parameter is stetted for programming).



Click on "Stop", then "Start", tick off "the engine must be switched off" and "The parking brake must be applied".


Reading data from the control units.



Set the new chassis ID to B444444, click on "Program".



Use current chassis ID B 444444.



Have new Chassis ID B 444444, Model FH12, Version 2.

Vocom II (USB) s connected to the computer.

Product data: collecting parameter data...


Job is done.