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Is your HP DeskJet 3830 series scanner not working? Here is the solution Click here to view the instructions!
Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan
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I am trying to send a Mobile Fax from the HP Smart app. I get the following error after attempting to send:

Something went wrong!

It seems that an error has occurred before the sending process. Please, try to send your fax again.

 

It does not work at all. I have ensured that I have a proper recipient fax number.

1 REPLY 1
HP Recommended

Hi @kessam3,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

The error “Something went wrong!” in HP Smart Mobile Fax usually means the app couldn’t start the sending process due to a configuration or connectivity issue. Here’s how you can fix it:

Step 1: Check Mobile Fax Requirements

  • Ensure Mobile Fax is enabled in the HP app: 
    • Open HP App → Personalize Tiles → Enable Mobile Fax.
  • Confirm you are signed in to your HP account.
  • Mobile Fax works only for sending faxes, not receiving, and cannot send to VoIP numbers.


Step 2: Verify Internet Connection

  • Make sure your device has a stable internet connection (Wi-Fi or mobile data).
  • If using a VPN or firewall, temporarily disable it can block fax transmission.


Step 3: Update HP App


Step 4: Check File Size and Format

  • Mobile Fax supports PDF files only, up to 50 pages or 20 MB.
  • If your file is too large, split it or compress it before sending.


Step 5: Retry After Clearing Cache

  • Close the HP app completely and reopen it.
  • If the error persists, remove and re-add your printer in the app.


Step 6: Try Sending Without a Cover Page

  • Sometimes cover page templates cause issues. Disable it and retry.


For full instructions and troubleshooting tips, visit HP’s official guide:
👉 HP printers - Using Mobile Fax (HP app) | HP® Support

 

I hope this helps.

 

Take care and have an amazing day!
 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

 

Regards,

VikramTheGreat

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.