Whats the difference between "Software Version" and "Platform Version" ?

Question

i read some post about platform-difference but i can't solve my problem i made network-program in bold9000 using 3G &wifi

in my bb9000 os version:5.0.0.509 platform 5.2.0.50 branding 1.0.114.308o it works very well

but when my customer tested it in bold9000 os v5.0.0.681 platform 5.2.0.64 branding version 1.0.1180.265t. at that situation wifi works but 3G doesn't work what's wrong with my phone ?

Every suggestion is appreciated plz warm-answer ㅠ ㅠ

Answer 1

Software/App Version - Indicates the version of your applications (Address book, browser, calendar, also WiFi config wizard, etc.)
Platform/OS Version - Indicates your version of system software (Java base/core software, radio codes, etc.)

In what way doesn't the 3G not work? You can use 3G in calls? Is the .681 phone in the same infrastructure like the .509 phone? Possibly the one connects through BIS, one through BES?