Hello thorium2,
I would first suggest trying a different cable or microphone altogether to ensure that it is an issue with the camera's mic jack. Have you tried adjusting the sound recording level manually to see if that helps? Please make sure that the camera is in a Creative mode, such as [P], [Av], [Tv], or [M] to ensure that we have access to all of the menu settings. I would suggest setting the camera to the [P] mode. Set the [Sound recording] menu option to [Manual]. Select [Rec. level] and press the < or > keys while looking at the level meter to adjust the sound-recording level. Look at the peak hold indicator and adjust so that the level meter sometimes lights up on the right of the “12” (-12 dB) mark for the loudest sounds. If it exceeds “0”, the sound will be distorted. In terms of service costs, the EOS M50 has a flat rate repair cost of $229.
Please follow the link below to access our online repair portal to arrange for service if necessary:
https://mycanon.usa.canon.com/signin
Instructions for Accessing and Using the Online Repair Portal
You will need to access or create your My Canon Account.
If you already have a My Canon Account and your product is already registered, simply click on the “Get Repair Services” link on the left menu and follow the onscreen instructions to arrange for service for your product.
If you have a My Canon Account and your product is not registered, you must register your product first. Click on the “Get Repair Services” link on the left menu, then click on the “Register Product” link on the right. After your product is registered, click on the “Get Repair Service” link on the left menu and follow the onscreen instructions to arrange for service for your product.
If you do not have a My Canon Account, you will need to create one. After you create your account, click on the “Add Product” link to register your first product. After your product is registered, click on the “Get Repair Service” link on the left menu and follow the onscreen instructions to arrange for service for your product.
Once you have completed the repair request, you will have an opportunity to print a copy of the request for your records. This request form will also contain shipping instructions and an address label that you will attach to the outside of your shipping box when mailing your equipment for repair.
