If HP Tuners recently released support for your vehicle (e.g., 2025 Explorer, Bronco, Bronco Raptor, Ranger, Ranger Raptor, 2023+ F150, etc.), you may encounter an error message when trying to read the stock file. This is expected in some cases and can be resolved by recording a 5-minute data log of idle in lieu of the stock file. Please be sure to submit a request in Tuning Central once you have verified that the file is synced. Steps to Record and Submit a Data Log: Connect your device to the vehicle's OBD-II and start the engine Open the TDN App and tap Data Log (paper icon) Tap START and wait for the gauges to appear Let the vehicle idle and continue recording for 5 minutes Tap STOP to end the data log The app will process the log and display a list of files. - If you don’t see the file list, go to Data Log > View & Sync Files - Make sure the file is synced (See: Checking for Synced Files) Once synced, submit a TDN Request for Stock Calibration in Tuning Central IMPORTANT: All other steps in the tuning guide should still be followed exactly as instructed. For customers with other vehicles (pre-2021 F150, Explorer, Edge, etc.) - Please ensure that a tune is not already on the vehicle. If the stock file is on the vehicle and the error persists, please contact sales@tunedbyzfgracing.com and include: - Your order number - Vehicle year, make & model - An Info Log (TDN App > Tools > Gather info log)

Any time you have an issue with your device, we encourage you to try the solutions outlined below. If none of these work, please let us know. For fastest service, please include the following information in your request: At least one previous order number Device model & generation (e.g., RTD+, RTD4, MPVI3) A brief description of the issue with screenshots if possible An info log (TDN App > Tools > Gather Info Log for Tech Support > Share) Please note: We will make every effort to assist you within our capabilities. However, you may need to submit a help ticket with HP Tuners. HP Tuners also offers live support during normal business hours. To initiate a live chat, please click "Connect With Us" at the previous link. Basic Fixes: Check that you are still logged in to your TDN Account (TDN App > Account) Re-sync your device (TDN App > Tools > Resync) Check for updates (through the App Store and within the TDN App) (TDN App > Tools > Update Firmware, Update Bluetooth Firmware, Update Resource files) Check that your phone has granted appropriate permissions to the TDN App (TDN App > Tools > Set App Permissions) Re-try First Time Setup (TDN App > Setup Device) Specific Issues: Files not displayed / missing files: Ensure that you are logged into the correct TDN account (reference previous emails from TDN, or Tune Delivery Network) Sync Files (TDN App > Flash > Vehicle Folder if applicable > SYNC FILES button) Required Update for iOS Users (see image below)

We recommend the below steps for outside software and programming errors regarding vehicle identification, such as those encountered in ForScan: ["Unable to Identify the Vehicle - If PCM has a custom tune installed, please enter strategy/calibration name or part number of FACTORY PCM (ex. PC3A-14C204-FGB)"] 1. Flash Back to Your Stock Tune Temporarily This is the easiest solution and is the method we recommend. Once you have loaded the stock tune to the vehicle, you can restart the software (e.g, ForScan) and save the vehicle profile. This should allow you to load and use the vehicle profile in the future even if the tune has been (re)applied. 2. Check for Software Updates Such notifications may come up if you’re not using the latest version of the software. Always checking for updates and ensure that you have the latest version installed. 3. Alternative Options To find the PCM part number, you can visually look at the PCM itself. You may be able to find it in the As Built Data from motorcraftservice.com/asbuilt (you are looking for the part number between F118 and /F118, beginning with LB5A for Explorers). Please note that these solutions do not always work and may not be applicable to all platforms or software systems. Please contact us directly with additional questions.

There are a lot of things to try -- we'll include the common fixes we know of, below. If none of these work, please let us know and consider submitting a help ticket with HP Tuners. HP Tuners also offers live support during normal business hours, please click "Connect With Us" on the linked page to connect with their support team. Many issues are resolved by updating your device: (TDN App > Tools > Resync) Files not displayed / missing files: Check that you are still logged in to your TDN Account (TDN App > Account) Ensure that you are logged into the correct TDN account (reference previous emails from TDN, or Tune Delivery Network) Sync Files (TDN App > Flash > Vehicle Folder if applicable > SYNC FILES button) For connectivity issues: Always ensure that your app is up to date (through your phones App Store) Check for updates (TDN App > Tools > Update Firmware, Update Bluetooth Firmware, Resync, Update Resource files) Re-try First Time Setup (via TDN App > Setup Device) Check that your phone has granted appropriate permissions to the TDN App (TDN App > Tools > Set App Permissions) Required Update for iOS Users (see image below)

If you can't start the data log with your RTD4, or are stuck on "Starting Online Scanning Manger" screen, please try the following: Provide power to RTD (OBDII with key on/ignition off, or via USB-C) Open the TDN App, go to Tools, then select "Resync RTD4" Once re-sync is complete, try data logging again. If data logging fails, you may need to try resync again (up to 3 times). If data logging is not successful after your third resync, please head back to Tools, then select "Gather Info Log for Tech Support" and send it to Sales@tunedbyzfgracing.com

It's possible that your custom tune was overwritten - here’s what to do in case Over-The-Air (OTA) updates overwrite your custom tune with a new "stock tune": 1️⃣ Read & sync the new stock tune (READ VEHICLE) 2️⃣ Re-apply your custom tune > If your existing tunes don’t flash, please submit a Tune Request and briefly explain what happened in the comments, noting that your existing tunes won’t flash. Note: Some updates may require purchase of a Tune Update — this is rare but not excluded from possibility. Our tuner will indicate if this is required when responding to your Tune Request. Should I leave OTA updates enabled? It's 100% personal preference - we don't recommend for or against.