Trimui Smart Pro S Rescue Card Recovery Guide

1. When Do You Need a Rescue Card?

Use this recovery method if your Trimui Smart Pro S:

• Cannot power on normally

• Is stuck on the boot screen

• Failed during a previous firmware upgrade

• Appears “bricked” but still powers on

2. What You Need

Prepare the following:

• A blank SD card (data will be erased)

• A computer (Windows recommended)

• Rescue firmware .img file

• One of the following flashing tools:

  • Win32DiskImager

  • Balena Etcher

  • WinImage

3. Create the Rescue Card

1. Insert the blank SD card into your computer

2. Launch your preferred flashing tool

3. Select the rescue .img file

4. Write the image to the SD card

⚠️ This process will erase all data on the card.

4. Recover the Device Using the Rescue Card

1. Power off the Trimui Smart Pro S

2. Insert the rescue SD card

3. Power on the device

4. When a green progress bar appears, wait patiently

Once the progress bar finishes, the firmware recovery is complete.

5. Restore Your Original TF Card

1. Power off the device

2. Remove the rescue SD card

3. Insert your original TF card

4. Power on the device

Your Trimui Smart Pro S should now boot normally.

6. Restore Rescue Card Capacity (Optional)

After recovery, the rescue SD card may display reduced storage capacity.

You can restore it using:

• PhoenixCard 4.1

Select the SD card in the software and choose “Restore Card” to return it to full capacity for future use.

Important Safety Notes

• 🔋 Ensure stable power during recovery

• ⛔ Do not power off or remove the SD card while flashing

• ⚠️ Use the rescue method only when standard upgrade is not possible

Illustrated tutorial link: https://drive.google.com/drive/folders/1pn1nvL1pIfI8lHmj7XVHs0hlWcdOHCfm?usp=sharing