Read Firmware, Bug or Normal?

[mtk6572s4clone]

Hi team, I have this doubt, nothing important, Is this normal for it to happen?; When the emmc firmware is readed, the partition table is deleted.

emmc: kmv3w000lm-b310
From: Original Samsung GT-I9500
Connection: Chip-off

Look the video:

Riff Box read firmware, Bug? - YouTube

Thanks!.

[Legija]

Hi,
Probably part of internal security mechanism implemented within controller firmware.
But could be some bug, too.

[mtk6572s4clone]

No write firmware and kill emmc (recovered again by ATF box)

KMV3W000LM-B310 = VMX0 Controller

Open serial port...OK
Connecting to the RIFF Box...OK
Firmware Version: 1.49 (RIFFBOX1), JTAG Manager Version: 1.78

Connecting to the SD/eMMC Card...OK
Set I/O Voltage reads as 3.20V, SD_CLK Frequency is 2.50 MHz

Detected eMMC Chip, ID: 0x15/0x00 (V3W00M), User Area Partition = 0x0003AB400000 Bytes (14.68 GB)

Current Firmware Hash Code: DAEA6B3774B6145D48A613165E834962DD5FA21C292152CF8D 9AD37BD98001B5

Preparing eMMC Core F/W Update...OK (Completed in 00:07.832)
Uploading eMMC Core Firmware Data...OK (Completed in 00:00.592)
Waiting eMMC Core Internal Reflashing Done...FAILED
ERROR: Waiting eMMC Core Internal Reflashing Failed


-Attached tp

Credits to ATF