Published by No NDA Inc

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What users are saying

1. 😕No wonder there giving them away it's a total pain in the ass and I think it's just a spy device why would a code reader need access to everything on my phone like camera contacts microphone wow it's spying on us.I tried downloading this app on three different kinds of cell phones.

2. it took 2 months to recieve the device and now it doesnt work ! what a poor company.Nice app, one problem though.... I keep having to reopen the app 2 or 3 times before I can read the dash panel, might want to somehow get the booting faster.

3. Have since removed it from the vehicle to see if it still attempts to connect to wifi.Unable to pair device ! Whenever i try to add device it keeps telling me "toggle high accuracy" well .. its on and still i get same message ! Stupid app & device.

4. Continuously getting notifications from my phone (Galaxy Note 10) that the device "ZUS ELM327" is slowing down my wifi by repeatedly trying to connect.

5. Works so well I bought the next generation for my car.Worked perfectly for about 4 days then lost Bluetooth signal from device.

6. In the garbage it goes.I don't know what you all are doing wrong but I've had the reader in my car for a couple months and it works great on all the cars I've put the reader into.

7. Even if there's no car, or Bluetooth device, or app shut down.

8. Kept rescaning but device couldn't be found.

9. I should have searched harder and checked the compatibility list because Avensis isn't even on there either.1 star is being generous.

10. "Scans" transmission codes/issues in vehicle where it's not possible with scanner that doesn't support transmission reading.

11. Not to mention it was a pain to connect at first but worked fine after.

Steps to Troubleshoot & Fix ZUS ELM327 OBD Scanner Issues

1. Fix ZUS ELM327 OBD Scanner Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart ZUS ELM327 OBD Scanner: Restarting the app will resolve most errors.
  2. Update the ZUS ELM327 OBD Scanner App. Here is how:
    1. On Android goto PlayStore » Search for "ZUS ELM327 OBD Scanner" » Open ZUS ELM327 OBD Scanner » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for ZUS ELM327 OBD Scanner » click "UPDATE".
  3. Clear ZUS ELM327 OBD Scanner app cache: Clearing cached data will force your app to retrieve the latest data directly from ZUS ELM327 OBD Scanner servers.
    1. On Android, goto Settings » Apps » Select "ZUS ELM327 OBD Scanner" » click Storage » click "Clear Cache".
  4. Check ZUS ELM327 OBD Scanner app permissions. If any of these permissions required to use your device's features are disenabled, ZUS ELM327 OBD Scanner might not work.
  5. Uninstall and reinstall ZUS ELM327 OBD Scanner. If nothing else has worked, completely uninstall ZUS ELM327 OBD Scanner then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing ZUS ELM327 OBD Scanner not working


2. Fix ZUS ELM327 OBD Scanner Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make ZUS ELM327 OBD Scanner be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to ZUS ELM327 OBD Scanner not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, ZUS ELM327 OBD Scanner may not be able to connect to the Internet when running in the background.

Reported Issues

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