Good job.
I would like to try too, what do you use to scratch the pcb?
I would like to try too, what do you use to scratch the pcb?
Update from my previous post:
@Dee87 with the pin-point advice on what the problem was however I didn't know how to exactly do a dual irfhs8342 mosfet install on the one capacitor. But I realised it was insufficient power problem. Therefor I had resorted to fixing the chunky boy on the cap instead. Thanks @cgtchy0412 for the aon6554 mosfet advice and it worked like a charm. Didn't impede any fitting when putting things back and was a cleaner install (imo). Didn't have a pull down for this mosfet as its large enough to not have much or if any leakage of current. Glitches super fast and I will be using this way for my mosfet install in future. @abal1000x, good research on this side of the motherboard. It works great. have a look at the glitch times and the mosfet set up for the install:
edit - (so glad i didn't have to do another re-ball on it. phew)
Hope this ordeal helps someone down the line.
@Dee87 with the pin-point advice on what the problem was however I didn't know how to exactly do a dual irfhs8342 mosfet install on the one capacitor. But I realised it was insufficient power problem. Therefor I had resorted to fixing the chunky boy on the cap instead. Thanks @cgtchy0412 for the aon6554 mosfet advice and it worked like a charm. Didn't impede any fitting when putting things back and was a cleaner install (imo). Didn't have a pull down for this mosfet as its large enough to not have much or if any leakage of current. Glitches super fast and I will be using this way for my mosfet install in future. @abal1000x, good research on this side of the motherboard. It works great. have a look at the glitch times and the mosfet set up for the install:
edit - (so glad i didn't have to do another re-ball on it. phew)
Hope this ordeal helps someone down the line.
Attachments
That's a chunky boy right there
. Cheers on getting it working.
Just a small observation, If I get *== on OLED and removed everything and got a black screen and the device is drawing 0.47 amps, does that rule out the poor wiring and rule in the dead APU?
I've once had a v2 with that same error, but it boots to OFW, this OLED, does not.
Time maybe 30 min
Cost cheap stencil 10$ paste 10$ u can probbally reball at least 50 oleds with that
Risk if u keep the temp not to high I don't see any risk.
I even know someone who put the emmc on wring and there was no damage
Difficulty maybe a 6 out of 10
Post automatically merged:
Why would u use a grinder to get the past of the PCB ?
Just use a exacto knife or a needle.
U can still fix that with those green adapters u use to reball the emmc where there is cmd,clk,dat0 pin out.
U just need to make a connection to the rest of that clk line that is still ther e
Post automatically merged:
Well like I side it was the MOSFET and 2 would worked ;-).
Its pretty much the same way u install one just with 2
.Just with some wires.
Last edited by Dee87,
Hi , i want to reball and put wire on cmd pad, any suggestion about wiring route?Time maybe 30 min
Cost cheap stencil 10$ paste 10$ u can probbally reball at least 50 oleds with that
Risk if u keep the temp not to high I don't see any risk.
I even know someone who put the emmc on wring and there was no damage
Difficulty maybe a 6 out of 10
Post automatically merged:
Why would u use a grinder to get the past of the PCB ?
Just use a exacto knife or a needle.
U can still fix that with those green adapters u use to reball the emmc where there is cmd,clk,dat0 pin out.
U just need to make a connection to the rest of that clk line that is still ther e
Post automatically merged:
Well like I side it was the MOSFET and 2 would worked ;-).
Its pretty much the same way u install one just with 2
Just with some wires.
I suspect that would happened, some black screen, purple screen, etc.
The cmd1 request is thrown by the cpu.
So if the cmd1 request doesn't detected, means the cpu doesn't request cmd1, means the cpu detect something wrong, and the normal flow is stopped.
Referencing on your previous post about the clk.
My hunch, the halt is because the cpu doesn't detect the emmc.
The connection of clk line between the cpu and the emmc disconnected.
You said grind the clk pad right? Thats is the recipe of disaster. Using a knife is better than grinder.
In the pad theres a tiny via. If you grind the via, then the clk connection between emmc and cpu disconnected.
Wish there are chemical compound that could remove the mask without physically scrap it.
In OLED, clk and dat0 is the worst enemies. I think the best solution is by using the green adapter. You could avoid destroying the clk and bridging dat0. I still learning kicad, and communicate with local pcb maker, about their specification. Hopefully could create a cheap green adapter, which have less risk to install.
Post automatically merged:
I think no one yet do that.
If i could give you an advise, just take the NC to route it out.
But i don't know whether it would effect the reball process or not.
Better using ball (than paste) and void the ball on that NC line of pin.
Like this green adapter:
Last edited by abal1000x,
its a bit tricky but u could probally get it work with 0.1 enameled wir but if u really wanna go that way i would just get the adapter that @abal1000x sho in his post thats the easiest wayt to get clk&cmd out of the emmc pad.
and like he also said if u wanna go that rout with diy eather try to put a really thin layer of uv mask on the nc near the clk line (emmc and Board side) and then reball with balls, u might also get away with using paste with the uv mask trick but i would think in this case i would suggest using balls then paste
Thank you @Dee87 and @abal1000x for your valuable inputs, I do have a green adaptor that I bought and will use on this. This is going to be an exciting challenge. I no longer see any reason to get frustrated when killing a console, I learn and enjoy.
@rehius that's 10 now
@rehius that's 10 now
Not yet bro, not yet. I believe that you will manage to fix it with the green adapter, or in worst case scenario just swap the board with one of the previous ones where you damaged the apuThank you @Dee87 and @abal1000x for your valuable inputs, I do have a green adaptor that I bought and will use on this. This is going to be an exciting challenge. I no longer see any reason to get frustrated when killing a console, I learn and enjoy.
@rehius that's 10 now
Stencil: https://www.aliexpress.com/item/1005004420982640.html
Last edited by QuiTim,
Thank you @Dee87 and @abal1000x for your valuable inputs, I do have a green adaptor that I bought and will use on this. This is going to be an exciting challenge. I no longer see any reason to get frustrated when killing a console, I learn and enjoy.
@rehius that's 10 now
Will a dead switch is still money lose
If u have such an adapter then try it , but remember to connect to the via that goes to the apu ;-)
Thank you brother for the encouragement.
I was long prepared for this and already bought this stencil and the green adaptor
https://vi.aliexpress.com/item/1005...t_main.91.26ac1802N4CMRa&gatewayAdapt=glo2vnm
Do you have a diagram of the double Install? Or is it the same way as in the guide by ninjay? Too fiddly that way for me and takes too long.Time maybe 30 min
Cost cheap stencil 10$ paste 10$ u can probbally reball at least 50 oleds with that
Risk if u keep the temp not to high I don't see any risk.
I even know someone who put the emmc on wring and there was no damage
Difficulty maybe a 6 out of 10
Post automatically merged:
Why would u use a grinder to get the past of the PCB ?
Just use a exacto knife or a needle.
U can still fix that with those green adapters u use to reball the emmc where there is cmd,clk,dat0 pin out.
U just need to make a connection to the rest of that clk line that is still ther e
Post automatically merged:
Well like I side it was the MOSFET and 2 would worked ;-).
Its pretty much the same way u install one just with 2
Just with some wires.
When the glitch failed, have you tried changing the mosfet IRF8342 with another new IRF8342? Maybe its simply broken.
Attachments
Not sure if the guide is updated with the double backside MOSFET.
If not just need to solder the second one the same way in as the first one.
Well ich its to fiddly ur porb gonna need a different mosfet
Oh do you mean connect them separately to the same cap or join the MOSFETS together at the S points like in the original guide by ninjay and then connect them to the cap? Like the normal soc way we used to do?
I've modified about twenty OLEDs, all with adapters, and for the moment they're all working perfectly, and as far as I'm concerned, there's no comparison in terms of costs and processing times, the adapter is better. but chapeaux for those who do reballing but when you have to work 3 OLEDs in one evening...
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