Support
← Back to Jaecoo J7 page
Jaecoo J7

Firmware update before install

Installing applications via Garage Tool supported only on firmware versions 02.00.05 (system version 1.2.0) and 02.00.03 (system version 2.0.0). If your GU has a different version, you first need to update, and only then return to the installation page.

⚠ Before you start, a high-quality flash drive is a must: a cheap or hanging flash drive can break installation right in the middle of the firmware, and this is already a risk for the head unit. Format the flash drive in NTFS in advance. You perform all actions on this page at your own peril and risk - we have described the process in detail, but we cannot influence what happens to your head unit during the update.
Step 1

How to view the current firmware version

  1. Open the Car → "System" Machine icon in the bottom panel, then scroll through the items on the left to “System”.
  2. Scroll down to the “Version information” block There are two numbers: “Software version number DMC» - this is the firmware version (for example, 02.00.05), and “Hardware version number DMC» - system version (for example, 2.0.0).
System screen with firmware and system version
The same block “Version Information” - both numbers are visible here.
Step 2

Download update file

Download firmware (5.2 GB)

Do not unpack the file - just format the flash drive to NTFS and copy the archive as is. If the file name is long, you can rename it to something short so as not to get confused on the GU screen.

Step 3

Install the update on the head unit

  1. Go to the engineering menu Same as for turning on ADB - Settings → "System" → find the "Version" line and tap it many times in a row.
  2. Tap "SYSTEM UPDATE" Button in the top row of the engineering menu, next to "VERSION INFO".
Engineering menu, SYSTEM UPDATE button
Engineering menu - SYSTEM UPDATE in the top row.
  1. Select "Select the usb package" Insert the USB drive with the firmware beforehand, if you haven't already.
Version Information screen with the Select the usb package button
"Select the usb package" - update source from the USB drive.
  1. Select the firmware file and confirm When asked "Whether to upgrade now?" tap "Confirm".
Whether to upgrade now update confirmation dialog
Confirming the update start.
⚠ From this point until the very end - do not power off the head unit, do not remove the USB drive, and do not turn off the engine. The whole process takes 15-20 minutes, the longest stage is the SOC flash (10-15 minutes), there's no need to rush.
  1. Wait for the file to copy "Whole package file copying" - goes quickly, this isn't the firmware flash itself yet.
  2. Wait for "SOC upgrade in progress" The longest stage, 10-15 minutes. The screen may go dark and flicker - that's normal.
Whole package file copying screen
Copying the file to the head unit - a quick stage.
SOC upgrade in progress screen
SOC upgrade - the longest stage, just wait.
  1. Check the result On the "Upgrade result" screen every line (SOC, VR, DSP, GPS, MCU) should say Success. Tap "Confirm".
Upgrade result screen with Success status for all components
All components show Success - the update went through.
If a rollback asks for a password (task number)

On newer firmware (for example, 02.00.11) the head unit asks for a "task number" - a factory check - when you try to roll back. You can turn it off: in the update menu, tap the "Version info" heading six times in a row - a list of checkboxes will appear. Uncheck the "Enable upgrade car request" item. After that the password is no longer requested and the rollback goes through to the end. Leave the other checkboxes alone.

Version number didn't change after the update

Sometimes the "Version information" screen keeps showing the old number even after a successful downgrade/update - based on owners' experience, this isn't an error, the update itself went fine (see the Success status in the previous step). If you're not sure - just try connecting to the install tool on this page.

Menu switched to Chinese

Sometimes the interface resets to Chinese after an update. Switch it back the usual way: Car → System → "Language" → choose Russian or English.

After the update

Turn on Wi-Fi on the head unit

For the navigator, music and other apps to work, the head unit needs internet access. On some J7 units Wi-Fi is hidden by default - turn it on via the engineering menu.

  1. Enter the engineering menu Settings → "System" → tap "Version" many times in a row.
  2. Open the "WIFI" tab and tap "Open" A list of available Wi-Fi networks will appear below.
  3. Connect to your network or your phone's hotspot Now the head unit has internet access - you can go back to installing apps.
⚠ Do not power off the head unit or remove the cable/USB drive during the firmware update - this can damage the head unit. If something went wrong or you still have questions - contact support.
Back to installing apps