How to update Android ver while preserving Baseband ver?

Mga Idol,

Pwede bang mag-update to 2.3.5 gingerbread pero retain yung baseband version. Kasi when mag-try akong mag-update nawawala yung local signal at bumamalik sa SPRINT digital roaming.

Need kong mag-update kasi hindi stable yung software. Daming "FORECLOSE" na error sa gamit kong rom. Salamat sa tutulong.

HTC EVO 4G (CDMA)

Android Ver.: 2.3.3

Baseband Ver.: 2.15.00.09.88

Software : 4.54.651.1

PRI: 2.33_033

PRL: 60796

via Symbianize Forum http://www.symbianize.com/showthread.php?t=1075966&goto=newpost