How to fully RESET HONEYWELL Galaxy G2-20 system; lost pin

Hi guys, anyone know what STU line failure is?? settings keep aborting
 
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Put in 1234 ent
Ent again then option 48ent
0 is doable
1 is enable
Press 1 ent
Then engineers code
Then option 56 comms
 
Ye that's right press A should say enable press ent then escape then put in engineer code
 
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U need to turn off coms
 

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