Showing results for 
Show  only  | Search instead for 
Did you mean: 

C3525i stuck on checking data


We have a C3525i that has screen stuck on "checking data (1 min remaining)" from past couple days. I quick google search says we need to update firmware and if that doesnt fix it need to format HDD and Reinstall data but how do i do any of this without a functioning screen. We tried power cycling the machine but still the same message. Can anyone guide me on how to update firmware or format HDD and reinstall system software without a working screen ?



Thanks for joining the conversation, NIX!

While our forum community members are welcome to chime in, Canon does not provide direct support for imageRUNNER series products. Instead, your dealer will be able to help you! If you don't have a dealer and you're in the United States, please call us at 1-800-OK-CANON (1-800-652-2666) and we will be happy to provide you with the names of dealers in your area.

If you're outside the USA, visit and choose your country or region from the map for local support.

We hope this helps!


Thanks Danny. I posted this here since I thought updating firmware should be a simple task that a user can perform themselves and not require a service call. 


Greetings NIX,

Its not actually.  End users cannot upgrade firmware on a Image Runner.  The firmware isn't available to end users or the general public.  IR's are classified as enterprise products and are supported by Canon's Dealer Network.  FW can only be upgraded a device which is operating properly.  If the error is due to a hardware issue, flash memory or hard drive, this will need to be corrected before a firmware update or reimage can be performed.  I recommend you establish a relationship with a dealer.  It will provide the fastest resolution.  

Bay Area - CA

~R5 C ( ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It