We frequently receive support requests from Motorola wireless speaker-mic users to change the language from French back to English. This is caused by accidently turning on the WRSM and holding the PTT button at the same time.
The mics affected are the RLN6554 and RLN6544 for APX series radios, RLN6562 for MOTOTRBO XPR/SL series DMR radios, and the RLN6551 long range wireless mic for vehicle applications.
Motorola Wireless Bluetooth Speaker-Mic Language Selection Instructions
Magnum Electronics, Inc. 
for the language change on the mic, I have learned that you need to hold down the PTT and the power button, while turning it on, until it prompts you to select a language. The way it is worded, does not work. thank you
You are so correct!! The way it is written does not work. Thank for the additional information! It worked perfectly!