Important Note
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 open https://tunezilla.com/fz/guide for the full detailed step-by-step guide.
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.
The make, model or engine type is not pertinent as the correct ECU selection. Different models and engines can share the same ECU type. This info should be available at the bottom of the screen like this:
Please refer to the Catalog or open a ticket to receive clarification on what ECU type to select
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
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
To rent a FlashZilla V2, the order can be done through the Catalog or ticket system. This will require a $500 deposit and a $50 weekly rental fee.
"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.
Please contact us if you need assistance
