Smartenit Inc probably out of business.

[brobin]

You have to return the RM4C Pro - it doesn't say it does 315MHz - only 433 MHz RF.  The one that's out of stock specifies that it does the 315MHz RF while the other listings say 433MHz only.  That may or may not be accurate.  However, since you have it, try learning the X10 codes and see if it works, it may do 315MHz and not say so. 

In the app, press the + in the upper right hand corner then Add Device and follow the prompts.  Use a PalmPad to send the commands. If it learns the command, save it and test to see if the 315MHz band works.

Since the Smartenit is up and running now you can either wait for the one mentioned to be restocked or try this unit instead:
https://www.amazon.com/MOES-Universal-Controller-Conditioning-Appliances/dp/B0B6V9TVCN/ref=sr_1_27?crid=3NCY9PMJGIS82&dib=eyJ2IjoiMSJ9.5FeZdVZGL8sDpANGZ4rQY4_AkEd99NlgQ8spDRKAoC0OdUKOsMAlDkCy2ZcHxPULLUqCkZYB0SIQJIdMCtZjqRsZgz8-7-d0wDjeEsd5AjdztyTyM7oSZXLPqVy_xBT9N2X2Q0__pwjHzk6FbIyLaw2fKSifBjH5YISDbcnrh1Orc2iNSQ1OXkY6VhISabc9z89q9Cz3yrplVQukGtZ-F7pkBrAbUMdcLtIs9YG-Di6_J9fGHVpLQlgTC76GH1H01wxsi4uEIQlN19aqSOCz_P37J8aCWIY5s1sS7pCn3FA.9RwWAppnRtCN3PiJrPbuuhlRToTfNWwPr83d9LiJn3U&dib_tag=se&keywords=broadlink+rm4+pro+315+mhz&qid=1743880007&sprefix=broadlink+rm4+pro+315+mhz%2Caps%2C104&sr=8-27

[IPS]

I just packed it to return. Will Waite for other’s availability.
Thank you for your help. Have a great weekend.

[Tuicemen]

The manual specs for the Brodlink RM4 C  states it works with RF 315 mhz so it should work.it is far different looking then the RM4 pro
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.broadlinkcolombia.com/wp-content/uploads/2021/01/RM4C-Pro-SPEC.pdf&ved=2ahUKEwiWkpCDusSMAxWivokEHWDDDbsQFnoECBsQAQ&usg=AOvVaw0o0KJCsaMNELPQGYH4wJtj

[IPS]

Yes it is the one I got. I just could not connect toX10 devices. I don’t know how to do it. Would appreciate your help.
Thanks.

[brobin]

If yours does 315MHz, open the app and press the + in the upper right hand corner and follow the prompts.  There's a video here:
https://www.youtube.com/watch?v=LMQP5uMrcEY  and several others on YouTube.