Blink led hex file upload

I want to upload code like ota we have led blink hex file
I am getting issues in programming mode and their fuse bit enable I am not sure how is set

we have a hm-10 ble module we want to upload code wireless through hm-10 using the android app
we are not sure wich command to send from mobile please suggest this method and how can do step by step.

and also how can write directly hex load and add flash address 0000 to start.

Which Arduino?

I have no idea how to achieve OTA. If you enable verbose output during upload in file -> preferences in the IDE, you can see the exact command that is used to perform an upload via USB.

Use upload using programmer in the IDE. You will need a programmer.

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with your project.

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