https://www.aliexpress.com/item/100...store_pc_home.productList_2005275944377.pic_0 - what are these useful for? Use premade solder points?
Nice work. Were you able to close the shield?Success, my Mariko has married Picofly
I have chosen a different mosfet: IRF8736PBF because it has legs so soldering is much easier.
it looks like this:
View attachment 365542
and in my Mariko switch it looks like this:
View attachment 365543
Datasheet:
View attachment 365544
View attachment 365545
Green LED is coming on the "rp2040 one" in 1 second.
THANK YOU ALL (I've read the whole thread) it is a very hard mod but it is much fun.
There are new type of adapter dat 0 not need to reflow emmc chip at all on aliexpress same it on video.
If you don't plan to reball the whole emmc chip you don't need the heatgun.Is this the guide you used? I have noe experience with a heat gun.
Try to check is there a voltage on the cpu pin when pico is booted.. if not then maybe firmware issue .. if there is a voltage then likely the mosfet has broke. try to replace.Just changed the 2040 with a fresh one and same issue. Blue, then green flash, then boots into OFW. Did my switch suddenly become unmoddable overnight?
i think its mosfet, try to trim / shorter the wireJust changed the 2040 with a fresh one and same issue. Blue, then green flash, then boots into OFW. Did my switch suddenly become unmoddable overnight?
if switch cannot turn on, then most likely the mosfet is stuck on closed state... need to hard reset or you can short the gate with ground to force it to an open state. happen once on me.I’ve installed so far 10-12 picos and I did one on a oled yesterday. Switch glitches fine and works but I’ve noticed 1 out of 30-40 glitches (I test my installs a lot lol) it won’t power on after pressing the power button. I would have to hold the power button for 10-15 seconds to fully power down and then it works fine. Checked all wires, clean flux, etc. not sure what might be causing this weird random no power but again it happens very rarely. Not sure if anyone has come across something like this?
If this is the case then soldering a 3k resistor from gate to source will fix the issue permanentlyif switch cannot turn on, then most likely the mosfet is stuck on closed state... need to hard reset or you can short the gate with ground to force it to an open state. happen once on me.
Hi guys, I've been reading the topic in the last few weeks, and I'm about to start the mod (if the enameled wire finally arrives..).
I have a question about the backup for boot0: I'm not 100% sure what the chip exactly does but I read that the boot0 will be 'dirty' after booting with pico installed, so how safe is to backup? Or is it clean before doing any cfw related things? (I'm planning to do emunand)
Thanks! I know that it's important to be safe in case of a corruption, I just want to create backups which are clean for restore later and also wasn't sure if using emunand affecting sysnand anyway or will I be safe for online access.It's a cfw thing, plus if the boot table gets corrupted more you have a working point to get back to if that makes sense. its also an anti brick thing
I used a legit sx lite cpu ribbon though…if switch cannot turn on, then most likely the mosfet is stuck on closed state... need to hard reset or you can short the gate with ground to force it to an open state. happen once on me.
I also got cyan colour similar to baby blue try two mosfet or single mosfet connected with two capsHi I have problem I get led color white after blue after baby blue sorry my Ingles is cpu mosfet? Problem
Try to extend your solder points like this first.Hi I have problem I get led color white after blue after baby blue sorry my Ingles is cpu mosfet? Problem
the one you put on your switch v2 has no resistorIf this is the case then soldering a 3k resistor from gate to source will fix the issue permanently