LG Optimus L5 — Upgrade Error WParam:100 LParam:1002

Estou com um problema, instalei o Android Jelly Bean no meu LG E615, mas não gostei e quero fazer um downgrade nele para o Ice Cream novamente. O problema é que ao utilizar o KDZ Updater LG Mobile para fazer isso aparece esse erro:

Log do KDZ

[15:13:19:830] : =============================================
[15:13:19:830] : Log is started on 20.05.2015, at 15:13:19:830,
executable: C:\Users\Usuário\Desktop\KDZ Updater LG Mobile\KDZ Updater Europe Open\KDZ_FW_UPD.exe (ProcID: 0x000016ac),
compile time : Sep 24 2012 16:17:39
[15:13:19:830] : ___DownloadThread()
[15:13:19:830] : rsi.strFriendlyName=LGE AndroidNet USB Serial Port (COM6)

[15:13:19:830] : FriendlyNameList[iii].szFriendlyName=LGE AndroidNet USB Serial Port

[15:13:19:830] : Port = COM6
[15:13:19:830] : >>Get Model Name [DIAG_VERNO_F]
[15:13:19:877] : BAD CONN MODE : Req(0) -> Rsp(3)
[15:13:19:908] : BAD CONN MODE : Req(0) -> Rsp(3)
[15:13:19:939] : BAD CONN MODE : Req(0) -> Rsp(3)
[15:13:19:939] : Expect booting mode: Dload mode and try to get model name in emergency mode
[15:13:19:939] : GetModelName() Operation Failed Check Diag CMD
[15:13:19:939] : EMERGENCY Booting Mode
[15:13:19:939] : >>Get Model Name in Emergency Mode [DLOAD_VERREQ_F]
[15:13:19:970] : BS/LGE615/8Dnformation
[15:13:19:970] : DLOAD_VERRSP_F : LGE615
[15:13:19:970] : DLOAD_VERRSP_F : E615
[15:13:19:970] : >>Get Parameters [DLOAD_LGE_SUB_GET_PARAM_CMD]
[15:13:20:002] : protocol_id : 1
[15:13:20:002] : pkt_buf_addr : 0x07980000
[15:13:20:002] : pkt_buf_len : 0x00080000
[15:13:20:002] : max_packet_len : 8192
[15:13:20:002] : Dload Step : 1
[15:13:20:017] : Type : 08, pAddress 0x02e5ecf4 Size 10240
[15:13:20:330] : Type : 03, pAddress 0x02e5e7a4 Size 19759616
[15:13:20:330] : Type : 19, pAddress 0x02e5f8a4 Size 0
[15:13:20:330] : Type : 20, pAddress 0x02e5f9b4 Size 0
[15:13:20:330] : Type : 22, pAddress 0x02e5fbd4 Size 0
[15:13:20:377] : Type : 36, pAddress 0x02e60ab4 Size 4513792
[15:13:37:620] : Type : 29, pAddress 0x02e60344 Size 576716800
[15:13:37:698] : Type : 30, pAddress 0x02e60454 Size 5738496
[15:13:37:698] : Type : 24, pAddress 0x02e5fdf4 Size 9508
[15:13:37:698] : Type : 26, pAddress 0x02e60014 Size 148388
[15:13:37:714] : Type : 32, pAddress 0x02e60674 Size 255168
[15:13:37:792] : Type : 35, pAddress 0x02e609a4 Size 645020
[15:13:37:901] : Type : 33, pAddress 0x02e60784 Size 8388608
[15:13:37:901] : Type : 40, pAddress 0x02e60ef4 Size 10080
[15:13:37:901] : Load DZ Binary is done succesfully
[15:13:37:901] : Pre Nand Download
[15:13:37:901] : >>Set Trusted Mode [DLOAD_NAND_SEC_MODE] sec_mode = 1 (1=trusted 0=NonTrusted)
[15:13:37:901] : >> SET TRUSTED MODE ...
[15:13:37:948] : >>Get Parameters [DLOAD_LGE_SUB_GET_PARAM_CMD]
[15:13:37:980] : protocol_id : 1
[15:13:37:980] : pkt_buf_addr : 0x07980000
[15:13:37:980] : pkt_buf_len : 0x00080000
[15:13:37:980] : max_packet_len : 8192
[15:13:37:980] : Dload Step : 1
[15:13:37:980] : >>NandFlashInitWithFile(PARTITION TBL)
[15:13:37:980] : Overwrite = Off
[15:13:38:011] : DLOAD_NAK_F reason_msb = 35, reason_lsb = 35
[15:13:38:011] : [ JNAND ERROR ] : ERR_PARTI_NOMATCH
[15:13:38:042] : DLOAD_NAK_F reason_msb = 35, reason_lsb = 35
[15:13:38:042] : [ JNAND ERROR ] : ERR_PARTI_NOMATCH
[15:13:38:073] : DLOAD_NAK_F reason_msb = 35, reason_lsb = 35
[15:13:38:073] : [ JNAND ERROR ] : ERR_PARTI_NOMATCH
[15:13:38:073] : FAIL
[15:13:38:074] : Close Port<<
[15:13:38:074] : TYPE_WPARAM_UPGRADE_ERROR
[15:13:38:076] : Log finished

Alguém poderia me dizer o porque está aparecendo esse erro, fiz exatamente a mesma coisa que fiz ao fazer o upgrade para o Jelly Bean. Já tentei usar o programa da LG mas não da certo, chega até os 4% e aparece para conectar o celular novamente, faço isso e tento mas chega até os 4% e para. Uso Win8 Pro 64bit, não sei se o windows tem alguma coisa a ver, pois a atualização para o Kelly Bean eu fiz quando usava o Win7 Ultimate 64bit.

Agradeceria muito sua ajuda. Desde já agradeço sua atenção.

— alterado em 20/05/2015, 20:30:40

Vitor M.

esse erro é causado pelo Windows 8 mesmo.

tente em um computador com o 7 instalado.

Consegui, era algo relacionado com o Windows 8 mesmo, vlw pela ajuda. Grato. Desculpe pela demora da resposta, ando sem tempo ultimante.