Please open https://tunezilla.com/fz/guide for the step-by-step guide.
Did you receive a FlashZilla v3 in year 2021 or earlier, and you don't see a TCU (DSG) option listed? Try installing the following template:
FlashZilla DSG Template File
Click here to see how to install that template.
Problem
Cause
Solution
F002 - Writing not allowed or "Tuning File is Empty"
The tool doesn’t currently have a tune file installed.
Upload a tune file to the device as per the instructions linked at the top of this page.
FlashZilla v3 screen shows "Calibration Error ... "
FlashZilla could not download your stock file from an online database
Please report the Calibration error to us and give us the full code. We will check if we have a stock file that we can add to the online database.
"ERR_INVALID_FILE" while trying to load tune from computer to FlashZilla
The stock file may not match the tune file due to erasing the device -or-The tune file that you downloaded may be corrupted -or-Your computer has difficulties with transferring the file to your Flashzilla.
1. If you have erased the device, download a new stock file from the vehicle, upload the .usr file to the support ticket and DO NOT erase the device while waiting for a tune file. 2. Try loading the tune file from your computer to your FZ a few more times. If that fails, please save a new copy of the stock file from your FZ to the computer and re-upload it to the ticket so we can reprocess the tune.
Touch Screen is not working/areas of the screen are not functioning.
Screen may need recalibration.
Attempt to access the screen calibration settings using your finger or a stylus. If you’re unable to navigate the device, it may be necessary to swap out the device.
"No_Credit" - on Device
Device had been erased a few times.
The Device S/N must be given to the tool Manufacturer, and a few more credits will be added.
Below is a list of common vehicle selections. You may find more details and images under the Tune Catalog for your specific model.
2000-2003 Jetta, Golf, or Beetle 1.9L TDI, then choose engine code ALH under VW Jetta.
2004-2006 Jetta, Golf, or Beetle 1.9L TDI, then choose engine code BEW under VW Jetta.
2004-2005 Passat 2.0L TDI, then choose engine code BEW under VW Jetta. This vehicle actually has a BHW engine, but it shares the same BEW engine computer family.
2009-2014 Jetta, Golf, Beetle, or A3 TDI, then choose engine code CJAA under VW Jetta.
2012-2014 Passat TDI, then choose engine code CKRA (under Passat VII). You may need to download the full template file linked above.
2015+ Jetta, Golf, Passat, or A3 TDI, then choose engine code CVCA, CRUA, CUUB, or CRLB under VW Jetta, Golf, or Passat.
any 2011+ 3.0L TDI (VW, Audi, and Porsche Cayenne), then choose engine code CRCA or CNRB under VW Touareg.
There are too many more common cars to list - please contact us if you need assistance.
If you don't see your vehicle (ECU) listed inside the FlashZilla device, then you can download updated template file below. Click here for installation instructions.
Download the small template containing a short list of popular vehicles - faster loading
Download the full template containing virtually all vehicles
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A battery charger or jump cable (connected to another car that's running) is recommended to stabilize your car's power during the ECU write operation. This does not apply to some vehicles, including VW Touareg 5.0L V10. Charging at over 13.5v may confuse the vehicle into thinking that the engine is running, and that can disrupt the FlashZilla write operation.
Please contact us if you need assistance.
This tool typically supports up to 2008 model year vehicles, and 2009 Mercedes Sprinter vans. It does not support newer vehicles. This used to be sold before 2018 and we still offer a few as rentals.
Download the 4.08 software here.
Download the PDF guide here.
Troubleshooting: If you see a "FTD2XX.DLL" error while operating FlashZilla software in Windows, then unplug the FlashZilla device from your computer, download and install this software, and try again.
There is a $50 fee plus up to a *$500 deposit required to rent a special version FlashZilla v2 (or possibly a different tool) that is not locked to one car. Please contact us if you have questions or if you'd like to rent. Please return these tools in a reasonable time-frame. If you cannot ship it within a few days of receiving your tune from us, then please let us know. We will charge $50/week if the tool is held for more than two weeks after the software has been sent, up to the purchase price of $900 USD.
"Master Error 2" while you try loading a tune file into FlashZilla
The tune file is no longer matches your original Read file. This can happen if you erased the FlashZilla or if you Reread the vehicle after you sent us your original Read file.
Save a fresh Read file and send it to us, then we will process a new tune. Please avoid erasing or reading with FlashZilla again.
"Master Error 1" while you try loading a tune file into FlashZilla
The tune file does not match this device, which must be a "FlashZilla" brand. Our tune files will not work with different brand devices.
While ensuring that the device you are using is a FlashZilla brand, it may be necessary to re-read the vehicle and send us the new read file. While waiting for a new tune file from us, please avoid erasing the device or another read.
"Security Error" while you try to read the vehicle
The vehicle's ECU may have an existing tune that is blocking your OBD2 read/write operation. In other words, another tuner may be preventing you from being able to re-tune the vehicle.
Pulling your ECU out and shipping it to us for bench-flashing is one potential workaround. Please contact us to discuss.
"Web Service Generic Error"
Possible online server connection issue with the tool maker
Try again after a few hours. In extremely rare cases (we saw this only once over 15 years), this error can persist for a week before it resolves itself.
