I suggest to try one more time. If they don't respond properly, try out consumer complaint. Also you can write review about the company so that same case shouldn't be happened with other consumers.
Instal MinimOSD-Extra from here: https://code.google.com/p/minimosd-extra/wiki/Firmware.
What version of firmware are you using? 2.2? Check your character set from the config tool. Use updated version
Connect APM to MP, went to initial setup tab > optional hardware > OSD. Check if telemetry...
Also I like to suggest to check out on frames also. Frames are one of the most important part and can be helpful if assembled rightly. Keep the battery mounting plate and clean it at regular interval.
Yes. I just found here that very few people get the exact replies. Its nice that you come up with something that will really help the people looking for them (atleast in same niche product)
Greetings!
We are from Venture Mfg. Co., a Dayton, OH based firm that offers linear actuators of different specification and sizes for different industries.
Hope we can share a lots of useful information.