What I found was that it would get to the Firmware Updating screen and then hang...
My procedure:
1. Format SD Card with FAT32, place entire contents of Firmware 2.0 archive in it - insert this into the 2x
2. Get OCDC open & ready
3. Connect JTAG, turn on 2x and hit okay on OCD splash screen...
My BIOS was set to 'EPP+ECP' - I would imagine either will do alright but ECP is the most up to date.
Would you be able to take some high res pics of your various connectors so we can have a closer look at the situation. Let's not write it off yet!
Fixed!!!
BIG Thanks to Manwe & the chap on that other thread that helped Manwe... ;)
Only you left now Julio....
At which point are you having problems?
Just a quick one...
1. H-JTAG Server displays 0xFFFFFFFF when the 2x is on and 0x00000000 when it's off (but the jtag dongle is still connected!) Once again proving something is happening...
2. Manwe / Juliodm - are/were you both getting coloured line syndrome on your 2x? Or was the bricking...
Nope... Unless I'm illiterate, Kaos seems to be the only confirmed winner with the simple scheme... To be honest I could go and buy the Wiggler right now - it's no problem to - but I'm the stubborn type and want to see my god damn resistors, capacitors & diodes do their thing!!
Since the...
I'm sorry to say it but don't be so sure about that.... :(
Mine displays all F's when it's all connected up and the 2x is on (Makes sense as if my memory serves me correctly then F is the highest value a hex number can be)
When I turn the 2x off it goes to all 0's...
Either way I'm still...
Thanks for all the investigation Manwe - much appreciated... You should put a guide on the wiki, would be great with all the necessary info in one place!
BTW Is this the same wiggler as yours?
Would still be nice if someone could confirm a positive result with the simple circuit though!
I'm pretty cheesed as well matey, I bricked my 2x within a week of it arriving - dodgy SD autobrick issue got me. It's only now that I've tried to sort it and the circuit doesn't work... Will possibly try a wiggler in the future though.
PS. No point in breaking anything, just stick it all in a...
Hi Manwe,
That's what I worked it out as, using a magnifying glass & lamp, you can actually see the order the terminals go into the connecting part of the plug (guess you did the same!) Made the assumption that the top right was 24 as Kaos' scheme indicates that it's a ground - on my connector...
For the sake of it... here are the images of the board itself (click for 1600x1200)
I haven't done any solder work in about 4-5 years so you'll have to bear with the nasty job on this!
<--- The most frustrating part of the whole dongle - apart from the fact that it doesn't work.
I have...
Hello Chaps,
Thought I'd jump on this thread's bandwagon... Built a 'jtag' dongle as per Kaos' jpg (i.e. the one without an IC chip)
Results seem to be the same as others...
0x00000000 - when gp2x off
0xFFFFFFFFF - when on
It seems at least the jtag probe is recognising something there, but...
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