I have a Pre Minus on Sprint and I have a UNA~Pre2. I've swapped the com boards.... It works fine... except that texting doesn't work.
I swapped the board back to the pre-minus and texting works fine.
I again swapped the boards and I redoctored the Pre2... and still no texting: I text out and people receive random characters... It will send it out to them 3 times. I don't receive any texts that are sent to me. Any ideas? I love it but texting is pretty important.