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#701 |
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JSD-001, Teensy2.0++ Connection Diagram
Here is my connection diagram for the JSD-001 Motherboard. All of the pads are labelled exactly as they appear on the Teensy2.0++.
https://minus.com/lErO5BlFD33gs Hope it helps someone. |
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#702 | |
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__________________
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#703 |
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Apprentice
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I've been reading everywhere I can on how to get this PS3 downgraded, but nothing's working yet. Here's my setup.
DYN-001 + Samsung K8Q2815UQB-PI4B Progskeet 1.2 (Used to get perfect dumps, which all matched. As the 1.2 can't write back, I'm trying to use a Teensy++ 2.0 for that) Teensy++ 2.0 + NORway 0.6b3 + 3v3 from Console Here's what's going on. After I connected the Teensy the first time, using 30AWG Kynar at ~8cm, I was presented with Manufacturer Unknown (0x90) and Flash ID Unknown (0x909090). I then proceeded to rewire everything with 26AWG, which yielded the very same results. Then I tried to switch the power source over to 5v to read the NOR, just to see if it would work. As such, I disconnected the 3v3 and powered down the console. In the off state, NORway returned (0xb4) and (0xf4f4f4) respectfully. If the console was turned on though, it returned to the previous (0x90) and (0x909090). I've since returned to 3v3 from the board and disconnected the USB power supply. If any one has some ideas, I'd love to hear them. Thanks for your time! - Gadorach |
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#704 | |
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Homebrew Developer
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Have you tried using a voltage regulator? If you have one, try that first. If you don't have one and your console isn't bricked (i.e. it boots to xmb), you can try this (Teensy fed with 3.3V from console): 1. Disconnect Teensy from usb, remove power cord from console. 2. Connect console to power, turn it on. 3. Let it boot to xmb and wait another minute. 4. Connect Teensy to usb. 5. "NORway.py COMx" 6. Check whether chip type is now recognized. 7. If it is, issue a "NORway.py COMx vwriteword patcheddump.bin" 8. If all goes well continue with the rest of the standard downgrade process (fsm, etc.) I just figured that apparently some mobos don't supply 3.3V to the nor when tristate is pulled low at boot time. Hence the unknown chip type. But be warned, this is still experimental and you might have only one try to do this. If your console doesn't boot anymore after a failed write attempt or wrongly patched dump, you might have to power it externally by using e.g. an atx psu to be able to flash again. -- judges |
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#705 | |
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Apprentice
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Else, as I was unaware that the ProgSkeet 1.2 wouldn't write to the NOR, I attempted it at first, and now the console does not boot, but instead either hangs at a green light or shuts down after a few seconds and blinks red. As I said though, I verified my dumps so it should be safe, but I'd assume that I now need to power the NOR externally in order to make it recognizable? Again, thanks for your time and sorry for the misunderstanding. Edit: Just thinking about it, but could I use the ProgSkeet to supply the required 3.3v for both the NOR and Teensy++? - Gadorach Last edited by Gadorach; 01-17-2013 at 08:27 AM. |
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#706 | |
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Homebrew Developer
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But you can try this first: http://www.ps3hax.net/showthread.php...070#post284070 -- judges |
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#707 | |
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Apprentice
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Edit: I should also mention that I tried the other method to no avail previously. Edit2: I have multiple Xbox 360's here, do you think I could use one of the unswitched 3.3v outputs to power everything? That would be ideal, assuming it has enough of a load capacity. - Gadorach Last edited by Gadorach; 01-17-2013 at 09:19 AM. |
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#708 | |
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Homebrew Developer
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Guess it depends on the ATX supply. I've got an ATX2.0 supply here that provides up to 30A@3.3V. Just have a look at the label. You might also wanna check out this (load resistor required): http://www.ps3devwiki.com/wiki/Talk:...h_external_PSU -- judges |
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#709 | |
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Apprentice
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Ok, well, I got everything hooked up, and the power supply is outputting the correct voltage, but I'm still getting (0xf4) and (0xf4f4f4), which is what I got from the ProgSkeet powering it as well. I'm rather confused as 14.0A on +3.3v should be doing the job just fine. I've heard of others not being able to collect the NOR identity with newer versions, and some recommended 0.4b12. I was unable to locate that version, however, and therefore have no idea if that would work or not. If the chip was blank or full of garbage data, I'd still assume it would report it's chip versions just fine as well, so the ProgSkeet being retarded shouldn't have anything to do with it either. Any other ideas? - Gadorach PS. I have plenty of images, but as I'm yet to reach a 15-post count, I can't post any of them, or direct links to them. Should you wish to see my installation, here's a broken-up link to my album. Link: imageshack(dot)us/g/1/9969618/ Last edited by Gadorach; 01-17-2013 at 10:36 AM. |
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#710 |
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Member
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Hello, I also use teensy 2 + + from July 2011 I consider it the most reliable flasher available on PS3 (THANKS TO JUDGES FOR NORWAY VERSIONS!) I use a different setup on samsung K8Q2815UQB (even today) and I have always gotten good dump.
Teensy without voltage regulator, no short on the 3v pad not cut the track of 5v pad If you've already cut the track pad 5v make a short to restore, (example in the attached immage!) Connect the VCC pad on the motherboard to the 5v pad on the teensy, other wires according to the diagram On samsung K8Q2815UQB I always use norway-04beta12! Power cable connected, Ps3 off, usb cable disconnected! PS: Now careful, these three steps should be done in quick succession 1) Turn on the ps3 from power button 2) very quickly connect the USB cable to the teensy 3) very quickly press and hold the power button, the ps3 immediately turns off, all LEDs off (this is normal) unplug the power cable (not neccesary but better to do it) type norway.py COM (your COM number) to verify that the NOR has been recognized correctly. enjoy ![]() This method works on ps3 with ylod and briked, no need to use an external power supply. Note: In the example image shows a teensy 1 where 5v pad and 3v pad positions are inverted respect their position on teensy2++ board, not to be confused just follow the codes printed on the teensy2++ board ps: sorry for my bad english! Last edited by DebugBrain; 01-17-2013 at 12:49 PM. |
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