Heres'a list of Radios, RUU and Shipped ROM's for HTC Pyramid also known HTC Sensation Android Smartphone.
Note: there is no harm in trying to update your HTC Sensation ROM. If your CIDs do not match with the latest update, it will just not let you install the update, and no changes will be made to your HTC Sensation.
RUU_Pyramid_HTC_Europe_1.35.401.1_Radio_10.43a.900 7.00U_10.51.9007.27_M3_release_198179_signed
http://www.filefactory.com/file/cc03797/n/RUU_Pyramid_HTC_Europe_1.35.401.1_Radio_10.43a.900 7.00U_10.51.9007.27_M3_release_198179_signed.exehttps://rapidshare.com/files/4167858...179_signed.exe
http://insertcoin.dataninja.net/WIP/...179_signed.exe
http://www.fars-gsm.net/htc_rma_priv...242_signed.exe
credits to kia1349 @ XDA-DEV
Shipped ROMs
HTC Sensation Europe
RUU_Pyramid_HTC_Europe_1.24.401.1_Radio_10.39.9007 .00P_10.11.9007.09_M2_release_190934_signed
http://www.filefactory.com/file/cb34...934_signed.exe
RUU_Pyramid_HTC_Europe_1.27.401.3_Radio_10.42.9007 .00P_10.11.9007.15_M_release_192183_signed
http://www.filefactory.com/file/cb52...183_signed.exe
RUU_Pyramid_HTC_Europe_1.28.401.1_Radio_10.42.9007 .00P_10.11.9007.15_M_release_192608_signed
http://www.filefactory.com/file/cb6e...608_signed.exe
RUU_Pyramid_HTC_Europe_1.35.401.1_Radio_10.43a.900 7.00U_10.51.9007.27_M3_release_198179_signed
http://www.filefactory.com/file/cc03...179_signed.exe
VODAFONE (France)
RUU_Pyramid_Vodafone_FR_1.23.163.1_Radio_10.38.900 7.00P_10.11.9007.06_M3_release_190415_signed
http://www.filefactory.com/file/cb34...415_signed.exe
VODAFONE (UK)
RUU_Pyramid_Vodafone_UK_1.24.161.1_Radio_10.39.900 7.00P_10.11.9007.09_M2_release_190798_signed
http://www.filefactory.com/file/cb35...798_signed.exe
SKT (Korea)
RUU_Pyramid_SKT_KR_1.24.911.1_Radio_10.39.9007.00P _10.11.9007.09_M2_release_190960_signed
http://www.filefactory.com/file/cb35a67/n/RUU_Pyramid_SKT_KR_1.24.911.1_Radio_10.39.9007.00P _10.11.9007.09_M2_release_190960_signed.exe
TMOUS
RUU_Pyramid_TMOUS_1.27.531.2_Radio_10.42.9007.00P_ 10.11.9007.15_M_release_192098_signed
http://www.filefactory.com/file/cb5d...098_signed.exe
RUU_Pyramid_TMOUS_1.29.531.2_Radio_10.42.9007.00P_ 10.11.9007.15_M_release_193714_signed
http://www.filefactory.com/file/cb7a...714_signed.exe
ORANGE (Spain)
RUU_Pyramid_Orange_ES_1.35.75.1_Radio_10.43a.9007. 00U_10.51.9007.27_M3_release_198552_signed
http://www.filefactory.com/file/ccec...552_signed.exe
ORANGE (UK)
RUU_Pyramid_Orange_UK_1.35.61.1_Radio_10.43a.9007. 00U_10.51.9007.27_M3_release_198549_signed
http://www.filefactory.com/file/ccf1...549_signed.exe
filed by Football @XDA-DEV
Note: there is no harm in trying to update your HTC Sensation ROM. If your CIDs do not match with the latest update, it will just not let you install the update, and no changes will be made to your HTC Sensation.
Latest leaked: June 2011
EuropeRUU_Pyramid_HTC_Europe_1.35.401.1_Radio_10.43a.900 7.00U_10.51.9007.27_M3_release_198179_signed
http://www.filefactory.com/file/cc03797/n/RUU_Pyramid_HTC_Europe_1.35.401.1_Radio_10.43a.900 7.00U_10.51.9007.27_M3_release_198179_signed.exehttps://rapidshare.com/files/4167858...179_signed.exe
http://insertcoin.dataninja.net/WIP/...179_signed.exe
ARABIC
RUU_Pyramid_HTC_ARA_1.34.415.1_Radio_10.43a.9007.0 0U_10.51.9007.27_M3_release_197242_signed.exehttp://www.fars-gsm.net/htc_rma_priv...242_signed.exe
credits to kia1349 @ XDA-DEV
Shipped ROMs
HTC Sensation Europe
RUU_Pyramid_HTC_Europe_1.24.401.1_Radio_10.39.9007 .00P_10.11.9007.09_M2_release_190934_signed
http://www.filefactory.com/file/cb34...934_signed.exe
RUU_Pyramid_HTC_Europe_1.27.401.3_Radio_10.42.9007 .00P_10.11.9007.15_M_release_192183_signed
http://www.filefactory.com/file/cb52...183_signed.exe
RUU_Pyramid_HTC_Europe_1.28.401.1_Radio_10.42.9007 .00P_10.11.9007.15_M_release_192608_signed
http://www.filefactory.com/file/cb6e...608_signed.exe
RUU_Pyramid_HTC_Europe_1.35.401.1_Radio_10.43a.900 7.00U_10.51.9007.27_M3_release_198179_signed
http://www.filefactory.com/file/cc03...179_signed.exe
VODAFONE (France)
RUU_Pyramid_Vodafone_FR_1.23.163.1_Radio_10.38.900 7.00P_10.11.9007.06_M3_release_190415_signed
http://www.filefactory.com/file/cb34...415_signed.exe
VODAFONE (UK)
RUU_Pyramid_Vodafone_UK_1.24.161.1_Radio_10.39.900 7.00P_10.11.9007.09_M2_release_190798_signed
http://www.filefactory.com/file/cb35...798_signed.exe
SKT (Korea)
RUU_Pyramid_SKT_KR_1.24.911.1_Radio_10.39.9007.00P _10.11.9007.09_M2_release_190960_signed
http://www.filefactory.com/file/cb35a67/n/RUU_Pyramid_SKT_KR_1.24.911.1_Radio_10.39.9007.00P _10.11.9007.09_M2_release_190960_signed.exe
TMOUS
RUU_Pyramid_TMOUS_1.27.531.2_Radio_10.42.9007.00P_ 10.11.9007.15_M_release_192098_signed
http://www.filefactory.com/file/cb5d...098_signed.exe
RUU_Pyramid_TMOUS_1.29.531.2_Radio_10.42.9007.00P_ 10.11.9007.15_M_release_193714_signed
http://www.filefactory.com/file/cb7a...714_signed.exe
ORANGE (Spain)
RUU_Pyramid_Orange_ES_1.35.75.1_Radio_10.43a.9007. 00U_10.51.9007.27_M3_release_198552_signed
http://www.filefactory.com/file/ccec...552_signed.exe
ORANGE (UK)
RUU_Pyramid_Orange_UK_1.35.61.1_Radio_10.43a.9007. 00U_10.51.9007.27_M3_release_198549_signed
http://www.filefactory.com/file/ccf1...549_signed.exe
filed by Football @XDA-DEV