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***Warning*** Bad Serial Data when using DIY Lite on Probe
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Junior Member
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6. November 2009 @ 15:32 |
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Hi All,
I posted this in the "build your own lite-on Probe" section but nobody has responded :(
I built my own probe and I am using a Serial to USB adapter and I keep getting the Bad Serial Data error.
I have checked my probe hardware using Hyperterminal and a 1.5 volt battery and it works (i get lots of garbage coming out), however, when i hook up the Lite-on drive (74850C) and fire up Jungle flasher and i search for a key i keep getting the error message.. "***Warning*** Bad Serial Data "
Does the drive have to be half-opened perfectly? Does the probe need to go deep into the R707 hole with a sharp pin or touch around the hole? What could I be doing wrong? It's been 3 days... help!
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Senior Member
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6. November 2009 @ 15:47 |
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for lite ones,u need to power on the drive open,then off,and close half ways,power on insert probe in the hole and hold it there till you get your keys,i had the same problem,but then it started working
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Junior Member
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6. November 2009 @ 15:55 |
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Let me see if I get this straight.
1. Manually eject the drive, then turn on the 360 with everything plugged in.
2. Turn on 360, the drive will close.
3. I plug out the drive (from the 360 power cable) and do another manual eject and plug it back in before inserting the probe?
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Junior Member
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6. November 2009 @ 16:02 |
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I think I already have this part down.
Here is how i do the half-open tray.
1. TUrn on the 360, hit the eject button to bring the drive out.
2. Hit the eject button again to close the drive. As soon as it reaches half-way out, i pluck out the drive power cable.
3. I wait a few seconds and then plug back in the power cable then fire up jungle flasher.
Still wont work :(
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gameover9
Suspended permanently
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6. November 2009 @ 16:02 |
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Just get an xtractor pro. They are cheap.
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Junior Member
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6. November 2009 @ 16:08 |
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I live in a very small country in Caribbean, that is not an option. It would be easier if i just built a probe but for some unknown reason, it will not extract the key with JF.
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AfterDawn Addict
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6. November 2009 @ 16:09 |
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Got to stick it in the hole. Just touching around the hole won't work. It's usually easier for first timers to shave it first.
The steps I follow are:
- eject the drive
- cut power to drive
- push drive back in half way by hand
- power drive back on
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Junior Member
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6. November 2009 @ 16:12 |
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Originally posted by bhetrick:
Got to stick it in the hole. Just touching around the hole won't work. It's usually easier for first timers to shave it first.
The steps I follow are:
- eject the drive
- cut power to drive
- push drive back in half way by hand
- power drive back on
When you say "shave it" are you suggesting that I make the hole bigger or use a sharper probe... say a sewing needle?
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dennisv9
Member
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7. November 2009 @ 04:01 |
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Originally posted by bhetrick:
Got to stick it in the hole. Just touching around the hole won't work. It's usually easier for first timers to shave it first.
The steps I follow are:
- eject the drive
- cut power to drive
- push drive back in half way by hand
- power drive back on
this is the sure way to go, this always works for me! all other methods (closing the drive and unplugging didn´t work for me ever).
shaving, means remove some of the green coating around the r707 hole! your probe should touch the r707 hole, if you don´t shave your probe will most probably only touch the green coating °°: bad serial data. i always shave some of the green coating off, is most easy. i use a small screwdriver for it.
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Junior Member
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7. November 2009 @ 08:37 |
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I will try the new half-open technique and I will also try using a fatter spear and also shaving the r707 hole.
Thanks for the help. I will report back if it works.
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AfterDawn Addict
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7. November 2009 @ 10:41 |
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Originally posted by mj1henry:
Originally posted by bhetrick:
Got to stick it in the hole. Just touching around the hole won't work. It's usually easier for first timers to shave it first.
The steps I follow are:
- eject the drive
- cut power to drive
- push drive back in half way by hand
- power drive back on
When you say "shave it" are you suggesting that I make the hole bigger or use a sharper probe... say a sewing needle?
No. I was trying to throw a little humor in there with the "shave it" comment. You know, got to stick it in, first timers may need to shave it to find it.
But, I was serious about getting it in the hole. You may have to use something sharp. Also, did you install the drivers for the serial to usb adapter?
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Junior Member
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7. November 2009 @ 18:53 |
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lol @ bhetrick
Yes, I have the latest drivers for my usb to serial adapter.
I have tried both ways of doing the half-open tray and still no same error message.
I have even opened the hole just a little using my spear and still no help. It works excellently when i use it in hyperterminal.
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dennisv9
Member
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9. November 2009 @ 08:13 |
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are you sure your probe is fine? i also build a couple of them, hypterterminal test worked just fine. but always bad serial message. for me, the transistors i used where the problem. a soon as i replaced them with ones that were known to work, it worked immediately. i tried many different resistors, and NOT ALL work!!! 5 different ones i tried (got them out of an old dvd player) didn't work! as in, transistors were fine, but didnot work for the probe
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AfterDawn Addict
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9. November 2009 @ 09:06 |
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That was going to be my next question, also. MJ1, what parts did you use? And can you post any pictures?
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dennisv9
Member
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9. November 2009 @ 09:11 |
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i can't remember which ones i used (2nnn...?), has been some time ago. but, i just went through the different post to find someone who got it to work and posted the transistors he used. but you might have a good look into that one, or just rebuilt your probe with transistors that are confirmed to work
This message has been edited since posting. Last time this message was edited on 9. November 2009 @ 09:14
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dennisv9
Member
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9. November 2009 @ 09:13 |
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edit
This message has been edited since posting. Last time this message was edited on 9. November 2009 @ 09:13
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Junior Member
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9. November 2009 @ 15:50 |
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I actually went to Radioshack and bought a 2N3906 NPN Transistor.
I also tried it using a 2907 Transistor and no joy. I bought 1k ohm and 10k ohm resistors from radio shack also. I tested the Resistors using a multimeter and I can confirm that they are working correctly and are in the right place.
I am using a USB cable for the 5volts and it seems to work no problem with Hypterterm but now thanks to dennisv9 I don't have so much faith in the hyperterm test.
I was a bit confused by the poinout but after trying it both ways, I realize that I only get info in Hypterterm if i connect the transistor a certain way.
I will post some pictures tomorrow hopefully.
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dennisv9
Member
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9. November 2009 @ 16:32 |
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Originally posted by mj1henry:
I actually went to Radioshack and bought a 2N3906 NPN Transistor.
I also tried it using a 2907 Transistor and no joy. I bought 1k ohm and 10k ohm resistors from radio shack also. I tested the Resistors using a multimeter and I can confirm that they are working correctly and are in the right place.
I am using a USB cable for the 5volts and it seems to work no problem with Hypterterm but now thanks to dennisv9 I don't have so much faith in the hyperterm test.
I was a bit confused by the poinout but after trying it both ways, I realize that I only get info in Hypterterm if i connect the transistor a certain way.
I will post some pictures tomorrow hopefully.
well, the resistors aren't the problem (they don't break that easy). transistors is another story, be sure you put it in the right way (ECB; emittor, collector, base!!!). that is different for many transistors! i would suggest reading through the forum and see which transistors they used with their working probe. go and buy those! for me i had to rebuild it many times due to the transistors not working properly in the probe. once i had the right transistors, i had the key in a few minutes. the hyperterminal test gives some indication, but is not definitive as i found out! good luck
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Junior Member
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10. November 2009 @ 08:54 |
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Can you guys let me know what type of transistor you used on your working DIY probes?
In the guide that bhetrick posted, there are two different transistors...
one says 2N2222 and another picture, he is using a 2N4401. What transistor works best for this application?
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Junior Member
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11. November 2009 @ 01:38 |
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dennisv9 - you were absolutely right, the transistor was the problem. I tried using a 2N4409, 2N3906, 2N2709 and NONE OF THEM WORKED!! Kept getting the bad serial data error.
I stopped into radio shack today and bought a 2N2222 transistor and in my first shot i've got a working key!
Finally! I have a working probe!
Special Thanks to
bhetrick and dennisv9. couldn't have done it without you :)
Now bring on the lite-ons!
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wld
Newbie
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3. December 2009 @ 13:33 |
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This really sucks,i actually have the same problem but now I use the 2n2222a transistor, it still give me bad serial data.. :(
I soldered it again twice now and yet, it still doesnt work.. :(
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Junior Member
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3. December 2009 @ 13:57 |
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Originally posted by wld:
This really sucks,i actually have the same problem but now I use the 2n2222a transistor, it still give me bad serial data.. :(
I soldered it again twice now and yet, it still doesnt work.. :(
Please make sure that you have the pinouts correct. Ensure that the Emitter and Collector are attached to the right place unless it won't work.
Also, mine was not a 2N2222a. It was a 2n2222 so you may have the incorrect transistor.
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wld
Newbie
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3. December 2009 @ 14:24 |
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im like 98% sure that the Emitter and Collector are placed right. I tried it before with a bc547 and wasnt working either... i first thought it was the tray,but since i tried everyting (really everything) to get it halfopend, it still didnt work.
iam looking around for a test if my com port actually is working, but since i have windows 7 its hard to come around a good terminal to do this job.i would love to supply you people with images,but that will take me another 3 hours because i have to leave atm...
btw, my transistor is a 2N2222A, so a round one, alloy-look.
(just asked some elektro dude, doesnt matter wheter its 2222a or 2222.)
This message has been edited since posting. Last time this message was edited on 3. December 2009 @ 14:33
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wld
Newbie
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9. December 2009 @ 18:40 |
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Really no one whats going on here?
I have 2 com ports, which one is really connected at the back of my PC. The second one is just a socket at the mainboard (Asus A8v, Via8237 chipset).
Com 2 is always 'ready', but one is never, but maybe its actually that the com2 is the socket on the mainboard but the com1 is the one at the bakc of my pc and isnt working ("not ready").
But again, when I test it with a multimeter everythings right, and I know by heart that the probe is -1,5V (dont blame me if im wrong).
What the hell is the problem? other drives just worked fine but i guess its in the probe somewhere..
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Junior Member
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9. December 2009 @ 19:07 |
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honestly, it could be anything... but my best guess would be to check the transistors.
I did not use a serial port, rather I used a usb-serial adapter and this creates a virtual com port.
You can use hyperterm to see if the cable is working correctly (there is a really great guide for doing this here .
Try your probe on another PC or with a USB-Serial converter in case your serial ports are not working right or not installed properly. If all else fails, try using the exact Transistor that worked in the guides.
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