[HOWTO] [REF] Get Download Mode without 3-button combo using homemade JIG

[natao2nv]

Jaycar u must be in aus haha can u post video on how u made this device will help us all so so much and pics thnk you for your time to make and work this device its goin to save my galaxy a trip to samsung cuz black screen of death sux haha

Sent from my X10a using XDA App

 

[natao2nv]

does anyone no of a home job on the 300k resistor.. eg. were it could be like an old electrical device such as camera .. i found them at dicksmith electronics for 35cents but its 11:49pm i want too try this tonight thnx in advance

 

[brack11]

w0ow excellent! where have you been three weeks ago when I killed my first sgs?!

 

[natao2nv]

w0ow excellent! where have you been three weeks ago when I killed my first sgs?!

i realy want to get my samsung galaxy off black screen of death.. how did you do it ..

 

[sackofnoise]

Hi, i have the exact same problem (just that before i flashed it to a captivate, i were having a corrupted sdcard...) just ordered the breakout usb board (cost less than getting a soldering kit and all) can't wait to get it. Also, for the resistor, the howto was saying 301k but does a 300k work also? (i see more 300k than 301k....)

THANKS!

Thanks everyone who helped solve this problem. I have a i9000 and flashed it with the captivate rom. I could not charge the phone so I tried to reflash with original software, I used the 803 pit file. It stopped and i waited for about 10 minutes and disconnected the phone and I got the screen of death.

I did this last week and was going to take it to Samsung after the Froyo upgrade came live and I was going to say that it happened when I tried to upgrade.

Guess what I made this USB factory jig and I was so happy that it went into download mode. This made me so happy many thanks and i will wait until the official upgrade comes.

I used a old nokia USB connector stripped the plastic off and bought a 300k resistor from Jaycar for 45 cents and this must be the best 45 cents I have ever spent.

harry

 

[TimFr]

Good work all! My phone had the PC-!-Phone brick screen which I ended up with after a failed Odin flash. 3 button recovery didn't work so I was basically SOL. Did this and it worked for the first try.

I cut open the MicroUSB cable and soldered a wire onto the contact point for pin 4. I then connected the pin 4 wire and the existing USB pin 5 wire to a solderless breadboard and put in 3 100k resistors in series and voila it worked. I found this easier cause I wasn't happy with the soldering job and was afraid it would come lose if I handled it too much. This way, I could leave the connector plugged in and then just plug a wire into the breadboard to simulate "plugging-in" the connector.

You can get away with 300k instead of 301k if the tolerance is 1% on the resistor. If you have one where the tolerance is 5% it may not work.

 

[MarkyG82]

I used 3 x 100k and 1 x 1k. Worked a charm. With the tollerance in mind i wanted to use the exact value to bring it as close to the 301 ad pos.

On my way to takes pics of the jig now. See you soon i hope.

Sent from my GT-I9000 using XDA App

 

[natao2nv]

Good work all! My phone had the PC-!-Phone brick screen which I ended up with after a failed Odin flash. 3 button recovery didn't work so I was basically SOL. Did this and it worked for the first try.

I cut open the MicroUSB cable and soldered a wire onto the contact point for pin 4. I then connected the pin 4 wire and the existing USB pin 5 wire to a solderless breadboard and put in 3 100k resistors in series and voila it worked. I found this easier cause I wasn't happy with the soldering job and was afraid it would come lose if I handled it too much. This way, I could leave the connector plugged in and then just plug a wire into the breadboard to simulate "plugging-in" the connector.

You can get away with 300k instead of 301k if the tolerance is 1% on the resistor. If you have one where the tolerance is 5% it may not work.

Humm i realy want to try this but i dnt think i will be able to pull it off maybe make a youtube vid of ur work thnx

Sent from my X10a using XDA App

 

[MarkyG82]

http://www.flickr.com/photos/[email protected]/

Heres hoping the link works. check out the pics. bit hard to make out but:
- I removed all the pins and picked the 2 best (least distroyed) ones.
-I then tried to solder them while in the plug. After that took them out of the plug. Pointy pliers help loads. Also one of those helping hand things with croc clips and a magnifier would be good too (cant find mine).
-With the pins soldered I took a close look at them to make sure all connections were good and that they wouldnt foul each other.
-Slide the pins in to the back of the plug ensuring they are right side up (flat edge towards the plastic bit when looking head on)
-As you look at the plug head on with the plastic but bottom most, the pins 4 and 5 are on the left.
-After you have put them back in, make sure they do not touch and bend them carefully as needed. Make sure they dont touch any other metal bits of the plug too. Not sure if it would do anything but its good practice to get things right the first time.

Next job is to bung it in the phone. anything from 2-5 secs and it pops up.

job done.

 

[natao2nv]

http://www.flickr.com/photos/[email protected]/

Heres hoping the link works. check out the pics. bit hard to make out but:
- I removed all the pins and picked the 2 best (least distroyed) ones.
-I then tried to solder them while in the plug. After that took them out of the plug. Pointy pliers help loads. Also one of those helping hand things with croc clips and a magnifier would be good too (cant find mine).
-With the pins soldered I took a close look at them to make sure all connections were good and that they wouldnt foul each other.
-Slide the pins in to the back of the plug ensuring they are right side up (flat edge towards the plastic bit when looking head on)
-As you look at the plug head on with the plastic but bottom most, the pins 4 and 5 are on the left.
-After you have put them back in, make sure they do not touch and bend them carefully as needed. Make sure they dont touch any other metal bits of the plug too. Not sure if it would do anything but its good practice to get things right the first time.

Next job is to bung it in the phone. anything from 2-5 secs and it pops up.

job done.

wow sounds promising haha too technical for me though i might pay an computer tech or an electrician too do it for me

 

[MarkyG82]

Give it a try mate. Always useful to have these skills. Soldering is the first step to learning to weld.

 

[natao2nv]

wow sounds promising haha too technical for me though i might pay an computer tech or an electrician too do it for me

i was speaking to my jaycar rep and its very hard to cut down to the core on the micro usb cord ive tried and failed lol but he did surgest to cut the micro usb cord about 3 inches for the plug and strip all the wires out and he could sell me a meter to find were to put the resistors to solder onto the wires of the pins ... humm can someone explain wat pins connected to wires are the wires used to connect to the resistors thnx

 

[natao2nv]

i was speaking to my jaycar rep and its very hard to cut down to the core on the micro usb cord ive tried and failed lol but he did surgest to cut the micro usb cord about 3 inches for the plug and strip all the wires out and he could sell me a meter to find were to put the resistors to solder onto the wires of the pins ... humm can someone explain wat pins connected to wires are the wires used to connect to the resistors thnx

just re - read your post soo its 4 and 5 the resistors connect too?

 

[TimFr]

i was speaking to my jaycar rep and its very hard to cut down to the core on the micro usb cord ive tried and failed lol but he did surgest to cut the micro usb cord about 3 inches for the plug and strip all the wires out and he could sell me a meter to find were to put the resistors to solder onto the wires of the pins ... humm can someone explain wat pins connected to wires are the wires used to connect to the resistors thnx

That won't work since the USB cable only has 4 wires whereas the microUSB connector has 5 pins. Normally, the extra pin isn't used and so it isn't connected to a wire but you'll need to access the extra pin in this case. To get access to that extra pin, you need to cut into the connector and directly access the pins. It takes a bit of work, but it shouldn't be too difficult to cut into it. Took me about 15 minutes and that was mostly because I was trying not to cut into any of the wires.

Also you don't need a meter since the wires are color coded to the pins. The ground pin (pin 5) is usually black.

 

[tonymy01]

i was speaking to my jaycar rep and its very hard to cut down to the core on the micro usb cord ive tried and failed lol but he did surgest to cut the micro usb cord about 3 inches for the plug and strip all the wires out and he could sell me a meter to find were to put the resistors to solder onto the wires of the pins ... humm can someone explain wat pins connected to wires are the wires used to connect to the resistors thnx

That won't work, as pin 4 is not taken out to a cable, only 4 wires are wired out of a microSD connect (pin 4 is not connected). Just be very careful when you strip the connector, or buy the connector from overseas. I managed to strip the connector of a car charger the other day, as I found many cheap micro-SD car chargers do not have the <200ohm short across D+ to D-, which is used to signal most modern microUSB connectored devices "this is a charger, you can draw charging currents from me". So I carefully stripped the connector tiny bit by tiny bit with a Stanley knife. Don't try to do it in one slice, you will destroy it. And the breakout of the connector to the rear circuit board of the connector is pretty tiny, you need a relatively fine tipped soldering iron to solder to it (and without holding it on for too long, as it will lift the tracks on the connector).

 

[natao2nv]

just re - read your post soo its 4 and 5 the resistors connect too?

http://i51.tinypic.com/30s8z7s.jpg

thats my home made micro usb male a port i stripped can someone edit my pic in paint and draw the lines were the resistors go im almost there and soo excited

 

[TimFr]

Hard to say looking at the picture. There are 5 pins. The two pins that have to be connected using the resistor would have been the pin that didn't have a wire connected to it (pin 4) and the pin attached to the black wire (pin 5)

 

[natao2nv]

Hard to say looking at the picture. There are 5 pins. The two pins that have to be connected using the resistor would have been the pin that didn't have a wire connected to it (pin 4) and the pin attached to the black wire (pin 5)

dnt tell me i stuffed it lol.. humm.. it was hard cutting that out too.. aint all the micro usb's the same ? cant u just tell me were the wires were on the pins too begin with

 

[natao2nv]

dnt tell me i stuffed it lol.. humm.. it was hard cutting that out too.. aint all the micro usb's the same ? cant u just tell me were the wires were on the pins too begin with

ill upload another pic showing all five pins hold on

 

[natao2nv]

ill upload another pic showing all five pins hold on

http://i51.tinypic.com/f1w3yt.jpg

try that bro