海爾48A5 DH1TT0D0700開機灰屏

​故障現象：開機打印信息顯示待機，開啟後電視可以開機，灰屏沒反應，用修機王顯示一樣。

打印信息如下:

Hello PM51...

Enter STR

MDrv_PM_PowerDown2Standby

一看信息好了待機，開機抓打印看一下，開機後，沒有任何打印信息，難道串口關閉，isp自動識別可以識別到並且可以讀出引導程序，暗喜帶25c16，遂將引導程序用HXD十六進制編程器打開一看果然串口關閉。

馬上用16進制將串口打開，打印信息出來了但是不能開機了，也不能灰屏了。

打印如下：

eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 1

eMMC retry by DATA_SYNC: 0h, ori:55h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 2

eMMC Warn: slow SDR clk to 5h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 3

eMMC retry by DATA_SYNC: 40h, ori:15h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 4

eMMC Warn: slow SDR clk to 4h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 5

eMMC retry by DATA_SYNC: 0h, ori:55h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 6

eMMC Warn: slow SDR clk to 2h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 7

eMMC retry by DATA_SYNC: 40h, ori:15h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 8

eMMC Warn: slow SDR clk to 1h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 9

eMMC retry by DATA_SYNC: 0h, ori:55h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 10

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 11

eMMC retry by DATA_SYNC: 40h, ori:15h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 12

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 13

eMMC retry by DATA_SYNC: 0h, ori:55h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 14

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 15

eMMC retry by DATA_SYNC: 40h, ori:15h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 16

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 17

eMMC retry by DATA_SYNC: 0h, ori:55h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 18

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 19

eMMC retry by DATA_SYNC: 40h, ori:15h

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC WARN: CMD17 check R1 error: 80000A05h, Retry: 20

[ eMMC_CheckR1Error() ] eMMC Err: eMMC_ST_ERR_R1_23_16

0x4F2392B4: 11h 00h 10h 09h 00h 09h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h | ................

[ eMMC_CMD17_MIU() ] eMMC Err: CMD17 check R1 error: 80000A0Bh, Retry: 20

[ eMMC_DumpDriverStatus() ] eMMC Status:

[ eMMC_DumpDriverStatus() ] MIU Mode

[ eMMC_DumpDriverStatus() ] Polling Mode

[ eMMC_DumpDriverStatus() ] FCIE Byte Mode

[ eMMC_DumpDriverStatus() ] SDR Mode

[ eMMC_DumpDriverStatus() ] FCIE Clk: 20000KHz

[ eMMC_DumpDriverStatus() ] 8-bits width

[ eMMC_DumpDriverStatus() ] HIGH bus speed

[ eMMC_DumpPadClk() ]

[clk setting]: 20000KHz

[ eMMC_DumpPadClk() ] FCIE 1X (0x1F201790):0x44

[ eMMC_DumpPadClk() ] FCIE 4X (0x1F2016C4):0x5

[ eMMC_DumpPadClk() ] CMU (0x1F201640):0x1

[ eMMC_DumpPadClk() ]

[pad setting]: SDR

[ eMMC_DumpPadClk() ] chiptop_0x5A (0x1F203D68):0x0

[ eMMC_DumpPadClk() ] chiptop_0x1F (0x1F203C7C):0x0

[ eMMC_DumpPadClk() ] chiptop_0x70 (0x1F203DC0):0x0

[ eMMC_DumpPadClk() ] chiptop_0x64 (0x1F203D90):0x0

[ eMMC_DumpPadClk() ] chiptop_0x4F (0x1F203D3C):0x8000

[ eMMC_DumpPadClk() ] chiptop_0x03 (0x1F203C0C):0xF

[ eMMC_DumpPadClk() ] chiptop_0x51 (0x1F203D44):0x2404

[ eMMC_DumpPadClk() ] chiptop_0x6F (0x1F203DBC):0x0

[ eMMC_DumpPadClk() ] chiptop_0x43 (0x1F203D0C):0x19

[ eMMC_DumpPadClk() ] chiptop_0x50 (0x1F203D40):0x0

[ eMMC_DumpPadClk() ] chiptop_0x0B (0x1F203C2C):0x0

[ eMMC_DumpPadClk() ] chiptop_0x5D (0x1F203D74):0xC307

[ eMMC_DumpPadClk() ] reg_pcm_drv (0x1F203C20):0x0

[ eMMC_DumpPadClk() ] reg_pcm_d_pe (0x1F203C30):0xFFFF

[ eMMC_DumpPadClk() ] reg_nand_drv (0x1F203C30):0xFFFF

[ eMMC_DumpPadClk() ] reg_emmc_drv (0x1F203D64):0x3000

[ eMMC_DumpPadClk() ]

[ eMMC_FCIE_DumpRegisters() ]

FCIE Reg:

00h:| 4807h 0000h 8020h 0000h 0000h 0000h 0000h 03FFh

08h:| 000Fh 0000h 0082h 0001h 0000h 0005h 0005h 0000h

10h:| 0055h 0002h FF20h 0000h 0000h 000Fh 0010h 0020h

18h:| 0000h 0000h 0000h 8200h 52A0h 4F23h 0000h 0002h

20h:| 0000h 0000h 0000h 0000h 0000h 0000h 000Bh 0000h

28h:| 0000h 0012h 0001h 0000h 0000h 401Fh 00FFh 0100h

30h:| 5803h 0000h 0040h 0001h FFFFh 0000h A0A0h 0000h

38h:| 0000h 0000h 00FFh FFFFh 0000h 0000h 2328h 0050h

40h:| 0004h 0000h 0000h 0000h 3000h 3F00h 0000h 0000h

48h:| 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h

50h:| 0000h 0000h 0000h 0000h 004Bh E005h 0085h 0000h

58h:| 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h

FCIE CIFC:

00h:| 0011h 0910h 0900h 0000h 0000h 0000h 0000h 0000h

08h:| 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h

10h:| 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h

18h:| 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h

[ eMMC_FCIE_DumpDebugBus() ]

FCIE_TEST_MODE: 5803h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5903h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5A03h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5B03h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5C03h

FCIE_DEBUG_BUS: 510h

FCIE_TEST_MODE: 5D03h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5E03h

FCIE_DEBUG_BUS: 600h

FCIE_TEST_MODE: 5F03h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 0h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 1000h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 2000h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 3000h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 4000h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 5000h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 6000h

FCIE_DEBUG_BUS: 0h

FCIE_TEST_MODE: 5F03h

NC_WIDTH: 7000h

FCIE_DEBUG_BUS: 0h

其實心中已經知道emmc已經危險了，但心中還是沒託底，馬上找羅老師問一下，建議我更換emmc，心中疑惑為啥改個串口，怎麼還不能像原來不能灰屏了，詢問老師，老師道趕緊換，教條啥，哎沒辦法，趕緊換吧。

馬上更換emmc，進控制檯uup升級，問題解決。

此問題在大師眼裡就是小活，但對於新手來說，還是有很多知識點，藉此拋磚引玉，希望可以幫助同行兄弟。

主板圖片如下：

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“百人精英計劃”名額有限，

正在火熱進行中

請感興趣的同學儘快，先到先得！

報名聯繫方式

國內

電話：020-28667686（潘老師）