After You Order — What Happens Next
Your order is placed. ScreenTune ships as a pre-built USB drive within 1–3 business days, the install itself takes about two minutes of plug-in-and-wait, and a 90-day support window starts on the purchase date. This page is the whole path from checkout to a verified install, in order.
The five steps from checkout to done
Section titled “The five steps from checkout to done”- Order confirmation — an email with your order details, tracking, and the contact method for support. Keep it; your order identifier is the first thing any support request needs.
- Shipping — the drive ships within 1–3 business days.
- Prep — record your unit’s current state (two minutes, below) before you plug anything in.
- Install — follow the install instructions. Plug in, wait about 60 seconds, let the unit reboot itself.
- Verify and store the drive — confirm the changes applied, then pull the USB and keep it.
The drive ships ready, so there’s nothing to format
Section titled “The drive ships ready, so there’s nothing to format”ScreenTune drives ship already formatted to the CMU’s spec: FAT32 filesystem, MBR partition table, the layout the head unit’s update scanner expects. Do not reformat the ScreenTune drive or copy files onto it — there is no download step and no file prep. The USB drive requirements page is still worth a skim for two reasons: it explains why the CMU silently ignores drives it doesn’t like (useful context if yours isn’t detected on the first try), and it’s the formatting reference if you ever prepare a separate recovery drive.
Record your stock state before you plug in
Section titled “Record your stock state before you plug in”Before the first install, spend two minutes capturing what “stock” looks like on your specific car. A phone photo of Settings → System → About is the single most useful artifact you can have on file: it records your firmware version, region code, and failsafe version, which determine every procedure that applies to your unit later. Also note which apps appear in the Applications menu and whether CarPlay or Android Auto currently works.
If the car is used, check for signs a previous owner already modified the CMU: no disclaimer screen on startup, custom apps in the menu, or touch that already works while driving. Pre-existing modifications change the install picture, and a revert restores the state ScreenTune first captured, not guaranteed factory. The backup and recovery page covers what to record and the full recovery hierarchy.
One more thing from that page: keep the engine running (or a battery tender connected) through any install. A power interruption mid-write is the one routine mistake that turns a two-minute install into a recovery job.
The install is one plug-in and one automatic reboot
Section titled “The install is one plug-in and one automatic reboot”The short version: start the car, wait for the home screen, insert the drive into the media USB port (the center-console port you’d use for music, not a charge-only port), and wait about 60 seconds. The CMU applies the changes and reboots on its own. Once the home screen is back, pull the drive.
Don’t interrupt it: leave the USB in and the ignition on until the reboot finishes and the home screen returns. Re-running the same drive re-applies the same changes, so the install is safe to repeat if anything looks off. The install instructions page has the full step-by-step plus a troubleshooting table.
What the first boot should look like
Section titled “What the first boot should look like”After the automatic reboot, and on every ignition cycle from then on:
- No disclaimer screen. The tap-to-dismiss legal screen stops appearing on cold starts.
- Touch works while moving, on products that include it.
- The system comes up faster. Roughly 32 seconds to touch-ready versus about 48 stock, and CarPlay connecting around 55 seconds versus about 71. You’ll feel this on the next cold start, not necessarily the install reboot itself.
If the disclaimer is gone and touch behaves as expected, the install worked. Store the drive somewhere you’ll find it: a future Mazda firmware update can overwrite the changes, and re-applying is the same plug-in step with the same drive.
Normal hiccups vs. support cases
Section titled “Normal hiccups vs. support cases”A few first-install behaviors are normal and self-resolve:
| What you see | What to do |
|---|---|
| Nothing happens after inserting the USB | Confirm the home screen was fully up before you inserted. Try the other media port. Remove and reinsert. |
| Install seems to hang | Give it a full 2 minutes. Then pull the USB, ignition off, wait 30 seconds, restart, retry. |
| No automatic reboot | Ignition off, wait 30 seconds, restart, and check whether the changes applied anyway. |
| Changes missing after reboot | Run the drive once more; re-running is safe. |
Contact support when you’re past those: the USB is never recognized on any port, a second run still shows no changes, the unit never reboots, the drive arrived physically defective, or the system is in a state the docs don’t describe.
Before you write in, read before you ask for help and send the order identifier, a plain description of the issue, and a photo or video of what the screen is doing. A legible photo of the version screen plus “what I’ve already tried” routinely saves a full round-trip; typical response time is within 48 hours.
Your 90-day support window
Section titled “Your 90-day support window”Every product includes 90 days of support from the purchase date, covering:
- Installation problems
- A documented tweak that misbehaves
- Recovery help
- Replacement media for a defective, lost, or damaged drive
If a Mazda firmware update overwrites your changes inside the window, re-installation guidance is free. One line worth knowing in advance: the refund boundary is install. Before installation, a refund is straightforward; after, the remedy is the uninstaller, not a refund. Full terms and exclusions are on the support policy page.
Going back to stock later
Section titled “Going back to stock later”To remove the changes, open the Miatafy app and select Uninstall. It restores the exact files ScreenTune backed up before changing them, returning the unit to the state it first captured. A second reboot may be needed before every stock behavior fully reinitializes. Reach for it before a dealer visit, before selling the car, or any time you want stock behavior back.
The revert and uninstall guide walks through it, and the dealer visit guide covers what to restore before service.
Related
Section titled “Related”- Install instructions — the full step-by-step install.
- Backup and recovery — what to record first, and every path back to clean.
- Support policy — full support, refund, and replacement terms.
- Troubleshooting — self-service fixes for general Mazda Connect issues.