MR355R problem

Dear All,
Thats my first post here…
am facing very strange problem on my walkietalkies…
i was trying the features of the device…i tried the emergency alert feature…for the 1st time it worked very good…but after this…it is working only on PPT L…any other button i press makes the device restart (the whole digits are appearing)
how can i fix this problem?
should i format them…if so…how can i do so?
or there is another solution?

thanks alot for ur help :slight_smile:

Make sure your batteries are properly charged,