HP49-50G: help for "frozen" screen

[Gil]

Suppose that, instead of using the built-in ROOT command, I write a program P with the MSLV command to solve the equation 2x=10 (I know it's stupid, it's just a simple example/case):

« '2*X-10' 1 —>ARRY 'X' 1 —>ARRY 3 1 —>ARRY MSLV»
'P' STO

I launch the program and get [5], the expected result in brackets, in stack level 1.

Looking at the top of the calculator, however, we see that that part of the screen was frozen,
ie the line "RAD XYZ HEX C X"
and the other line "{HOME... }" have disappeared.

After launching the program P, I press ENTER or any other key, and the lines RAD XYZ HEX C X & {HOME...} appear again (normal screen).

My question: what instruction/which commands should I add at the end of the program P to get back the lines RAD XYZ HEX C X& {HOME... } automatically after execution of the program P?

A bad solution would be to add, inside the program P, after the MSLV-command, the instruction CONT, that seems to do the job (with lines RAD XYZ HEX C X& {HOME... } automatically added back after reading the CONT command in program P) ?

Bad idea because, if I create now a second program P2, which should square the result found with P
« P 1 GET SQ »,
the execution of the instruction CONT in program P will terminate the process, without executing 1 GET SQ.

I tried to "play" with the instruction DISP, FREEZE & WAIT, but with no success.

Thanks for your help.