[donjuan020]

Friends, many types of connections but always fail. Rule is right, I decided to remove emmc now. Ufi works flawlessly. I did MGU18 and everything is fine. MGU21 7 and 8 partition 2.10gb file size is large and cannot write with 1bit.

[autocar15]

do you have a tutorial ?

[kwat]

Hello, I have the same problem as colleague donjuan020. Do you have a way to correctly read and write after ISP for MGU21? I read the 220 Mb partition and the 2.10 Gb partition and in the 220mb partitions I have practically only zeros. I do not have these values to make a unit patch. I use the Easy Jtag Plus programmer. I have cables about 15 cm long without 100 Ohm resistors. The last thing is a photo of emmc but I do not want to do that.
Can you help me. Of course I can return the favor.

Best regards.

[tcp443]

does anyone have pin out for mgu21 ? i got the pin out for mgu18 only.

[SashaMykytyuk]

tell me what programmers you use. Meduza pro. Ufi box. Easy Jtag. or something else thanks

[vipsha]

I detected MGU21 emmc pinouts with a multimeter. Now I can communicate and read. 128GB Toshiba Emmc available on it. But in the write function, the emmc write process does not start. Anyone have any ideas about the problem?I use UFI for these operations.

UFI ERROR CODE

Loading file: "\\F:\MGU%20EMMC\MGU21\mmcblk0p7patch.img", size: 2.10 GiB...
Writing mmcblk0p7 at 0x35600000-0xBBBFFFFF (4403200 sectors)... Failed to write block 0x35680000:65536 (return code: 0, CMD Error: )
cmd response: 0x0, card status: 0x0, card state: 0 (Card is in unknown state)
OS error code: 0x00000102(Standby processing time exceeded)

EMMC Health Test:

Init bus...
VCC: 3.3 V, VCCQ: 1.8 V
Bus: 1 bit (SDR 4MHz)
Access mode: sector mode
Power supply: dual-voltage (1.70-1.95V, 2.7-3.6V)
Card/BGA: BGA (Discrete embedded) - High density MMC
Manufacturer ID: 0x11 (Toshiba)
Product name: 128G04 (0x313238473034), rev: 0x04, serial number: 0x34E2341E
Manufacturing date: Ara 2020
CID: 11010031 32384730 340434E2 341EC77E
CSD: D02F0032 8F5903FF FFFFFFEF 8A4000B6
Firmware version: 0x2
EXT_CSD revision: 1.8 (MMC v5.1)
Partition info:
Boot1: 31.88 MiB
Boot2: 31.88 MiB
RPMB: 4 MiB
User area: 116.48 GiB(125,074,145,280 bytes)

eMMC 5.x Health report:
Device lifetime: Normal
Estimation of the device lifetime (SLC): 0% - 10% device life time used
Estimation of the device lifetime (MLC): 0% - 10% device life time used

Does anyone know what needs to be fixed for the programmer to successfully write the partition? Do I need to fix the programmer or the head unit board?