ERROR: EMMC WAS NOT Detected! (CMD1)--Solution

[pgharidas]

Error --

"1. DO NOT USE THE PHONE"S BATTERY
2. Connect the Soldered TP Connections to ATF Box
3. Disconnect the USB Cable and Wait until the
the ATF Software will tell you to Connect the USB."

ERROR: EMMC WAS NOT Detected! (CMD1)
Check your Test Point Soldering!
CMD1 Reply: 0x00000000


ADAPTER USED --ATF 4in1 Adapter V2

Solution --

1. Check and confirm soldering is perfect. Reduce wire length as low as 5cm

If you are getting same error --

2. --

4 in 1 Adapter --

• Check 1.8V, 2.8V And 3.3V are OK

• 3.3V may be near 3V only--IF 3.3v is not OK continue --IF OK Please STOP HERE and excuse me

Why 3.3V is not OK??

The regulator used is -- AMS117 3.3V
Datasheet -- Attachment 346792

• There should be at-least 1.25V difference between Input and output of AMS117 series regulators

• Its a 5V to 3.3V regulator

Input for AMS117 3.3V regulator?

• Input of AMS117 - 4.2V

• Output expected 3.3V But since min. V difference between I/P and O/P is 1.25V, SO , obtained O/P 4.2V-1.25= 2.95V

So the 3.3V is not getting.

What to do?

• Remove AMS117 3.3V regulator

• Provide 3.3V externally.

• Set max current 200mA

• Vcc - 2.8V , Vccq - 3.3V

Note-- If Box goes OFF when connecting adapter, remove R3 (zero ohm R) near sd-card connector


Change Vccq to 3.3V in ATF SW . These steps helped me. Hope this will solve the not connecting issue. Try

[pgharidas]

EDIT --

1. No need to remove R3
2. NOT APPLICABLE FOR I9300

[allumts]

Excuseme, instead of all this Complicate work, Why not modific this First version of 4 in 1 adapter in EASY MODE?

Just solder 2 pull up resistor of 100Ohms from 3.3V in adapter to CMD and DATA0 lol

EMMC DIRECT connection work with Charme and have always Stable Voltage.

How many Scientists have just to complicating things

[pgharidas]

Originally Posted by allumts

Excuseme, instead of all this Complicate work, Why not modific this First version of 4 in 1 adapter in EASY MODE?

Just solder 2 pull up resistor of 100Ohms from 3.3V in adapter to CMD and DATA0 lol

EMMC DIRECT connection work with Charme and have always Stable Voltage.

How many Scientists have just to complicating things

Yes brother. I use Version2 type of 4 in 1 adapter But the image I uploaded is V1.

This solution is applicable because 3.3V marked on the adapter is 2.95V when measured with a multi-meter.(I checked the regulator --its OK, not damaged) Its a design mistake I think. The designer used a 3.3V regulator but he didn't consider that the regulator needs 5V input. 3.3V output is available only if the regulator gets 5V as input.
Here the regulator gets 4.2V as input (checked). So the output of 3.3V regulator will be 4.2-1.25V=2.95V. A minimum voltage difference of 1.25V drop occurs in that regulator. I found it in the datasheet.(checked)

Pull-up resistor is included in v2 adapter. A switch is provided, Exynos mode switch. If it turned ON pull-up resistor is connected to 3.3V.

The intention of my post is simple. 1.Verify all voltages 2.8 and 3.3 is OK, 2. If not... why? and 3. what to do then

I think you are right. EMMC may work @2.95V but it was easy to connect when proper 3.3V is provided. After some Direct EMMC repair, Now I know exactly we don't need an adapter too. Data0, CLK, CMD, 2.8V ,3.3V and GND is all what we need . Thank you for your reply. I will try to make solutions more simple like you said. I am beginner.. learning

[siktoo]

tks sir, i have the sames...i used V2 adapter, but in 3v3..its 2v95 ERROR: EMMC WAS NOT Detected! (CMD1)
Check your Test Point Soldering!
CMD1 Reply: 0x00000000

how i can get 3v3???????????????? sir...i remove regu 3v3 and the next step ????????? tks

[allumts]

hello,

Check your Test Point Soldering!

This is you Big error, no adapter and is clear from here also:

CMD1 Reply: 0x00000000

More good first read how set the Adapter and ceck you pinout soldered.

BR

[siktoo]

please help me...............

[allumts]

Originally Posted by siktoo

please help me...............

What type of EMMC and Phone Model you are tryng?

[siktoo]

i try with samsung P3100, sky a830, lg f160 used 3v3 ......I'm sure you did the right......I soldered testpoint with GND, emmc found but i can't fomat it......I do this with somes emmc use 2v8 and 1v8 every things is oke....

[allumts]

Sure are doing any Mistake.

Read Sticky thread by yourself next time.

A) http://forum.gsmhosting.com/vbb/f609...nouts-1941023/

B) http://forum.gsmhosting.com/vbb/f609...m-n-o-1936304/

Itc.... So open phone and Loock what Type of EMMC there's inside, (Write Sigle), and where in mounted, (model of phone).

Atf isn't JTAG BOX, support some Specific EMMC Samsung and any other type NOT ALL, if want one JTAG BOX purchase one Box like RIFF, itc...

BR

[kiranin2309]

lumia 630
EMMC WAS NOT Detected! (CMD1

plz help