Memoscan U581 Update Software Download New ((top)) May 2026

MemoScan U581 — Software Update & Download Guide

Final Warning: The "Newest" Might Not Be for You

One critical nuance: The newest update (e.g., v3.0) may remove support for very old vehicles (pre-2000) to make room for newer ones. If you own a 1995 Honda Civic and a 2020 Honda Accord, check the release notes. Sometimes, the second-to-latest update offers better backwards compatibility.

Always read the changelog before downloading. If the "new" update only adds 2025 Hyundai support but drops OBD1 protocols, stick with your current version.

4. Step-by-step update procedure

Requirements:

• Windows PC (7, 8, 10, 11 – 32 or 64 bit)
• USB Mini-B cable (not micro-USB – check your device)
• The update .exe + .bin file from a trusted source

Steps:

1. Charge the U581 fully (low battery can brick during update).
2. Turn off the U581 (don’t connect to car).
3. Connect USB cable to PC and U581.
4. Run the updater as Administrator:
   • Right-click UpdateTool.exe → Run as Administrator
5. Select correct COM port (check Windows Device Manager under “Ports”).
6. Click “Open” then “Update Firmware”.
7. Select the provided .bin file.
8. Wait 2–3 minutes. Do not disconnect.
9. Success message → close tool → disconnect USB.
10. Turn on U581 → verify new firmware version in settings.

If the updater says “Device not found” or “No response”, your unit is likely a clone and cannot be updated. memoscan u581 update software download new

Part 4: Step-by-Step Guide – How to Install the New U581 Software

Assuming you have downloaded the legitimate U581_PC_Suite_Setup.exe and the new .bin database file, follow this sequence.

The Update Erased My Languages (Only Chinese Shows)

• Cause: You installed a regional version intended for the Asian market.
• Fix: Download the "International English" pack from the global support site, not the China domestic site. Re-flash.

Step 1: Install the PC Suite

Run the installer as Administrator. Allow it to install USB drivers. Restart your PC if prompted. MemoScan U581 — Software Update & Download Guide

Phase 4: Perform the Update

1. In the Memoscan Update Tool, select your device model: U581.
2. Choose the COM port you noted from Device Manager.
3. Click "Browse" and locate the actual firmware file (often named U581_BIN_V2.13.bin or similar). Do not select the setup file again.
4. Click "Start Update" or "Download."
5. Critical: Do NOT disconnect the USB cable, turn off the U581, or close the PC tool. A progress bar will appear.
6. The process takes 3–5 minutes. When finished, you will see "Update Successful."

5. Risks of updating

• Bricking the device – If power fails during write, the unit becomes a paperweight.
• Wrong firmware – Using a file for U480, U580, or Launch U581 will corrupt the device.
• Driver issues – Some clones use non-standard USB-to-serial chips (CH340, CP2102) requiring separate drivers.

Before updating: Confirm your current firmware version is not already the latest. Many U581s never receive updates.

3. Battery Registration for BMW/Mercedes

A major "new" feature is the ability to register a new 12V battery on late-model German vehicles—a function that used to require a $1,000 scanner. Windows PC (7, 8, 10, 11 – 32