When reading a series of QR codes in edit mode, do not release the trigger switch on the unit until all split QR codes have been read. Prematurely releasing the trigger switch discards all data up to that point, forcing you to start over.
Reading a normal code produces a single pip from the beeper after reading. Reading a series of QR codes, however, produces two pips for the first and the normal single pip for subsequent codes. Reading the final code produces three pips from the beeper and displays (or sends) the data.