Solution
Please choose the update procedure listed above that matches how your printer is connected and which operating system you are using:
Ver.1.100/ 1.101
1. Supported for the security specification change of Google Cloud Print.
Ver.1.090/ 1.091
1. The administrator password has become to be settable for the Remote UI.
REFERENCE
The Firmware Updater is not usable for the update to this version (ver. 1.090/1.091).
Follow the procedures for network-connected printer.
Ver.1.051
1. The phenomenon which the printer did not turn on in some instances has been rectified.
If the printer's firmware version is anything other than 1.041, the phenomenon does not occur.
Ver.1.030
1. In the previous firmware version, some of the buttons of the Remote UI with iOS7 cannot be selected.
In the updated version, this problem has been rectified.
Use Firmware Updater (A USB cable & a computer are needed)
In case that your printer and PC are connected via USB, you can upgrade your printer firmware by Printer Update Utility. You can download the Firmware Updater from the download library, and follow the instructions given in the Manual that is included in the download package.
IMPORTANT
A USB cable & a computer are needed to perform this upgrade.
If you have Wi-Fi environment, Using that PC or PDA, you will update the firmware via the access point or router.
The printer, access point or router, and PC or PDA should be connected as shown below.
(A) Internet
(B) Access point or router
(C) PC or PDA such as a smartphone
(D) Printer
Procedures for updating the printer firmware (for a network-connected printer / Windows XP, smartphone, or PDA)
To update the printer firmware, follow the steps below.
IMPORTANT
DO NOT power off the printer during the update.
(1) Confirm that the printer is turned on.
(2) Confirm that the printer is connected to the Internet.
(3) Load one sheet of A4 size or Letter size plain paper.
(4) Press and hold the Stop button until the Alarm lamp blinks 15 times, then release the button.
Printing of the network setup information starts.
REFERENCE
This printout is used later in the registration process.
(5) Open the web browser of your PC, smartphone, or other types of PDA. In the address entry box of the browser, enter the text that you see on the printout in the "IPv4 IP Address" line.
For example, with the printout shown above, enter "http://192.168.11.3" in the box.
(6) The Remote UI starts and the top window is displayed.
(7) Select [ Firmware update ] and [ Install update ].
(8) When " Update succeeded " is displayed, select OK.
Update of the firmware is completed.
Procedures for updating the printer firmware (for a network-connected printer / Windows 7, Windows 8, Windows 8.1)
To update the printer firmware, follow the steps below.
IMPORTANT
DO NOT power off the printer during the update.
(1) Confirm that the printer is turned on.
(2) Confirm that the printer is connected to the Internet.
(3) Click [ Windows Explorer ] on the taskbar.
(4) In the window, click [ Network ]. The MG3500 series icon (MG3500 series_xxxx) is displayed.
(5) Right-click on the MG3500 series icon (MG3500 series_xxxx), select [View device webpage] from the menu.
(6) The Remote UI starts and the top window is displayed.
(7) Select [ Firmware update ] and [ Install update ].
(8) When " Update succeeded " is displayed, select OK.
Update of the firmware is completed.
Procedures for updating the printer firmware (for a network-connected printer / Mac OS X)
To update the printer firmware, follow the steps below.
IMPORTANT
DO NOT power off the printer during the update.
(1) Confirm that the printer is turned on.
(2) Confirm that the printer is connected to the Internet.
(3) Start Safari (browser).
(4) From the File menu, select [ Safari ] and [ Preferences... ]. The General window will open. Select [ Bookmark ] or [ Advanced ].
(5) The window below will open. Select [ Include Bonjour ] for Bookmarks bar or [ Include Bonjour in the Favorites bar ] for Bonjour.
(6) In the Favorites bar, click [ Bonjour ], and select [ Canon MG3500 series ] from the menu.
(7) The Remote UI starts and the top window is displayed.
(8) Select [ Firmware update ] and [ Install update ].
(9) When " Update succeeded " is displayed, select OK.
Update of the firmware is completed.