I have these RT8-1 IR5s: 9600.17053.winblue_refresh.141120-0031_woafre_client_CoreARM_O15_en-us-IR5_CCSA_WOAFRER_EN-US_ESD_2F1E1C773E39C4672F52B1F3A0AE7844FD837B23.esd 9600.17053.winblue_refresh.141120-0031_woafre_client_CoreARM_O15_cs-cz-IR5_CCSA_WOAFRER_CS-CZ_ESD_8D39E5906B750806CA68802DF1F79A2AF81B9FD5.esd From RT8-0 to RT8-1 upgrade I have IR4s and setup: windowsstoresetupbox_dee56d8871e3a0c5b12d8a828e7bba194452d165.exe 9600.17053.winblue_refresh.140923-1144_woafre_client_corearm_o15_en-us-ir4_ccsa_woafrer_en-us_esd_a2910b60945846a1e7b5d0de4acc32e219469fb4.esd 9600.17053.winblue_refresh.140923-1144_woafre_client_corearm_o15_cs-cz-ir4_ccsa_woafrer_cs-cz_esd_fb941acb978aaa47fbc756c31167bf335f59a718.esd From WZOR I have: 9600.16384.130821-1623_WOAFRE_ClientRT_O15_EN-US-IRM_CCSA_DV5.iso 9600.16384.130821-1623_WOAFRE_clientRT_MULTI-IRM_CL1_DV5.iso (LPs in fact) From RT8-1 Preview I have the: 9431.0.armfre.winmain_bluemp.130615-1214.de-DE.rar + en-US_LP.rar From RT8-0 I have: Surface RT 8.0 Asia.zip Surface RT 8.0 CEE1.zip Surface RT 8.0 Euro.zip Surface RT 8.0 China.zip Surface RT 8.0 Japan.zip Surface RT 8.0 Mediterranean.zip Surface RT 8.0 Nordic.zip Surface RT 8.0 North America.zip Surface RT 8.0 SE Asia.zip Surface RT 8.0 Taiwan.zip Surface RT recovery image instructions.pdf + all of LPs for everything (RT8-0, RT-8-1, Office 2013 HS, Office 2013 HSP)