Switch lite picofly problem short long long

[longson008]

I got this problem and using the latest fw.
Short long long and it's not even on the list.
Any help?

Longson

 

[Phantomas77]

Well, we ain't magicians, some more info could enlighten this...

What's the console model? Which is the "Latest FW" used and where from did you download it from? Did it worked well before or went FUBAR after install? Did you use DIY MOSFETs or a flex on the SoC? Does the screen stay black/blue/pink or it boots to OFW?

Post install pics and a video of the pulses.

 

[longson008]

It's a switch lite with picofly flash with 2.73

 

[Phantomas77]

Can't comment on the LED code, but use the +3.3V from the diagram which is in the AIO guide by lightninjay. Eventually add a second MOSFET.

 

[rehius]

added eMMC boot detection codes into the main post

 

[longson008]

Thanks everyone. Last attempt was to change rp2040. It did work! Maybe flux or cold soldering on the chip. The solder points where perfekt on board. Used one mosfet and it all went good.

 

[M007P]

added eMMC boot detection codes into the main post

do you know what this code could be? i changed RPI, changed wires, re solidered few times.
left to use awg30 kynar wire and try.

tried 2 mosfets, 1mosfet- same
anybody found solution?

 

[rehius]

do you know what this code could be? i changed RPI, changed wires, re solidered few times.
left to use awg30 kynar wire and try.

tried 2 mosfets, 1mosfet- same
anybody found solution?

this means rp2040 cannot sniff the eMMC bus. it could be anything - wrong points used, excess flux, bad soldering. show pictures, at least

 

[krzys4x]

I am glad I didnt buy hwfly switch oled

 

[longson008]

I still have this problem on a working one. Suddenly stopped working and shows this code. Tested 5 chips same result. I might have too long cables on rst cmd clk and do. Will try again tonight

 

[M007P]

this means rp2040 cannot sniff the eMMC bus. it could be anything - wrong points used, excess flux, bad soldering. show pictures, at least

i removed wires and chip, will try with 0.2wire with insulation, looking to find, buy… hope in few days


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[longson008]

My faulty chips now works. Was mosfet soldering was the problem

 

[M007P]

what have you done to solve issue?


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[longson008]

what have you done to solve issue?


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Resolder my mosfet chip

Post automatically merged: May 28, 2023

Had this problem on a switch V2 again. Didn't work with 2.73. but did work with 2.74.

 

[M007P]

Solution is simple, check pads did you soldered correctly, clean flux
use 0.2mm wire for mosfet, other 0.1mm, you can use one mosfet no problem or use flets for apu.
make solid pads of mosfet with kapton, mask… gnd wire and vcc used hot glue not to move.

Glitching for now is instant no delay, lastest FW 2.74.