BlackBerry Handheld Software v126.96.36.1991 (All Languages)
Package Version: 188.8.131.521
Software Platform: 184.108.40.206
File name: 8520wifijAllLang_PBr5.0.0_rel1831_PL220.127.116.11_A18.104.22.1686_Telkomsel.exe
File size: 160.38MB
Note: The Software Platform and Applications version numbers can be found under Options-About screen on the handheld.
Also, check out RapidBerry post below for more info;
Direct download HERE
If you have any further suggestions, concerns, or questions, please post below in the comment area, and I will try to reply back as soon as possible.
Note: even though this is an older BlackBerry legacy device, many users still would like to know if a device OS update is available to download.