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[Q] Read out EMMC from a I9100 with a SD-Card Reader

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By tomatos666, Junior Member on 14th October 2014, 06:30 AM
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Hello,

i will read out the data from a I9100.
I have found a Picture in a other forum from the Board with the Pinout.
(Google EMMC I9100)
I have connect the EMMC with a SD-Card reader. (3,3V; 1,8V; CLK; CMD; GND; Data0)
Put the reader dosn´t see the EMMC. (kmvyl000lm-b503)

It´s possible read the EMMC with a SD-Card reader that support MMC?
Some one have the Datashet from the kmvyl000lm-b503?
6th February 2015, 01:25 PM |#2  
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Hello,
some one have a solution?
9th February 2015, 01:24 PM |#3  
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Interesting idea...
I see no reason why not, apart for performance and interface.
EMMC have a much greater performance than SD, so who knows.
In addition EMMC should have a hidden serial interface on it as well...
11th February 2015, 05:18 AM |#4  
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Quote:
Originally Posted by tomatos666

Hello,

i will read out the data from a I9100.
I have found a Picture in a other forum from the Board with the Pinout.
(Google EMMC I9100)
I have connect the EMMC with a SD-Card reader. (3,3V; 1,8V; CLK; CMD; GND; Data0)
Put the reader dosn´t see the EMMC. (kmvyl000lm-b503)

It´s possible read the EMMC with a SD-Card reader that support MMC?
Some one have the Datashet from the kmvyl000lm-b503?

You need to supply power to the chip @ 3.3v and 1.8v. Or DC power to the battery pins on the phone (NOT the battery obviously.)
11th February 2015, 08:17 AM |#5  
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Hello,

i have connectet the battery pind with a power supply.
Then i thake the output oscillator from the CPU to ground.
Now i give power to the phone. Theoretically the Emmc have power.
I have just try it with a sd Card reader put i dosn´t see the emmc...
9th April 2016, 02:18 PM |#6  
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I too have been trying to do this to debrick a GTab 3. I found a Russian website where the guys have manage to do it. Its a little tricky to understand the translation. There is a bit of a question mark around something to do with 'removing a resistor around read/write time.' I have been wondering if you need to boot the Tab so that the processor configures the eMMC, and then remove a resistor (with the board powered once the chip has initialised?!) that allows the clock of the SD to take over. I was planning to look at the eMMC data sheet next to see if I can confirm if this is the case. Why I can't post a link for the first 10 posts on here is beyond me, but if you Google 'AP_PS_HOLD (TP)' its the 7th link in the results. Perhaps someone with more than 10 posts could find it and post it for the benefit of others! Even better, if someone who's tech savvy and fluent in Russian takes a look, perhaps an explanation in English on here would be a big help

---------- Post added at 01:18 PM ---------- Previous post was at 12:45 PM ----------

I have connected DAT0, CLK, CMD and GND between the eMMC and SD card using a microSD-to-SD adapter. I have applied 2.8V to VDD and VDDF, current consumption settles at 300mA which the Russian site states is an indication that the eMMC has entered read/write mode. I can see the clock ok on the scope. CMD and DAT0 remain high though, no signal is detected. The eMMC does not appear as a drive in disk utility. I have not tried Flashnul yet as the Russian site suggests.
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15th July 2016, 04:02 PM |#7  
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Are you people still trying this ? I can help I got too bricked phone china mtk6573 and g2 mini I opened its back cover but was who wondering if emmc needed to be dissattach to it?(silly question I know)
9th December 2018, 08:20 PM |#8  
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Sorry for the late answer. I was successful!
27th July 2019, 10:32 PM |#9  
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Read out EMMC from a I9100 with a SD-Card Reader
Quote:
Originally Posted by tomatos666

Sorry for the late answer. I was successful!

Hi canyou tell me how you was successful??
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