[Motorola Atrix 2] juan_benitesm:
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Hola Amigos

Buscando en la web me encontre con esto.......... sera que funcionara..........

Ingles

Hello Friends

Searching the web I found this .......... will it work ..........

http://www.kineteka.com/microusb-b.aspx

Esto encontre

http://xdaforums.com/showthread.php?t=1438214

Working Motorola Dev Cable

I'll make sure to get some photos up soon of the whole operation.

Anyway I managed to get a Dev Cable built to successfully re-flash firmware to the Atrix. I actually bricked my phone three times and instantly was able to re-flash to 1.8.3 and higher.

So first off I found a previous post on another form about making a dev cable and noticed all you need to do is run a wire from the 1 pin (which is 5V) to the 4 pin (which has nothing attached to it).

Micro USB pin diagram here:

http://www.kineteka.com/microusb-b.aspx

It seemed simple enough, but in reality it is a slight pain to get inside the injected plastic to get to the pins. Basically what I ended up doing (and I'll get pictures up here soon) is cut into the USB cable about 2 inches behind the micro USB plug to make the red wire (5V) accessible. Next I cut off the plastic shielding around the micro USB and slowly pried away the metal clips. The important part here is to not break off the tip of the USB cable that is used to secure the cable to the phone.

Now the hard part… if the plastic is clear then your work is cut out for you and you can just melt the plastic to the 4 pin connector and solder. If it’s not, then you have to do some careful exploring, the best option I have found is to melt the plastic to find the 4 pin. Cutting away the plastic also helps but caution you might cut into the wrong area and sever a wire (I did this twice already). Next step is to clean and solder a wire to the 4 pin connector; I used the wire from a butchered USB cable from this project, make sure the wire is long enough to allow for errors.

Finally run the wire back to the first cut in the USB cable and solder or use heat shrink tubing to bind the Red Wire (5V) to the jumper wire that runs from the 4 pin connector on the micro usb.

With a little luck it should work!

My soldering is not that great and one out of the two cables I made worked.

If you have any questions, ask!

AND

So I found out the best way to un-brick a phone... it's simple as building a Dev Cable. I have tested this three times already on my Moto Atrix and every time I have been able to reload the firmware with RSD.

http://xdaforums.com/show....php?t=1050624

So in a nutshell the best way to do it is to tear apart a micro USB cable. I had to go through four to make one working one, since my soldering skills suck, and run a wire from the 1 pin (which is the 5V) to the 4 pin (which has nothing connected to it), by doing this you're adding 5V to the 4 pin and VIOLA! the phone is able to be powered during a soft brick.... (my bad, I said hard before, didn't realize my mistake till now).

Micro USB pin layout here:

http://www.kineteka.com/microusb-b.aspx

Here's a little more in depth post on it:

http://www.droidforums.net/forum/dro...ory-cable.html

I'll see about having a post on how to make a factory cable here up this weekend, I have to take snapshots on my next cable build.

AND

Q]What are JTAG or Riff Box procedure to unbrick our Atrix 2 ?

Last few days were full of frustration for me I've searched every single website on Internet that could possibly describe me on what can be done to get our phones running after a Hard Brick that was caused by ICS leak. The pain even increases when I see that I've hardbricked without even doing anything that was not possible.

Though there are not exact explanation for our phone but I've seen people getting success for their devices.

I've no warranty so if this problem is not solved I'll probably have to throw my phone in dustbin. As now I don't have warranty I want to fix this phone on my own and I am ready to try every single things that is possible, so for that I need suggestions from all our devs in here.

I've seen people using JTEG and riff box methods to unbrick their phones. I am not familiar with these methods, I want people to explain me these things and what are the chances of unbricking our devices.

I saw this method used for old atrix will this work for us??

http://xdaforums.com/show...9&postcount=16