I found a premade firmware, now I just need to figure out how to upload the .bin file
If it is indeed a G18 without a crystal, try sending an ItsyBitsy bootloader to it. I can make you a custom one.
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Needs converting to UF2. Can do it for you. Got a link?
OK... This SHOULD be the bootloader to your device. Should give you an empty chip. Then flash what you like...
Everything seems okey now, but it still won't boot. I even gotten back the rickroll, so something is up with the chip now. Maybe the connector since it's quite loose
Aye it works, It's the USB-C connector that is glitching, I took it out of its shell and lightly pulled on it and it came right off, Funny enough if I put it back on and tada, it loaded Hekate 4.2
Thats what we need. Just another report just to rule out a problem with your chip.
Anyway... Small update coming...
Simple-UF2 v0.9.2
Changelog:
In Hekate... Modchip information shown on Hekate screen (mode / payload) - if you change mode / payload on modchip, reboot Hekate to reflect changes. Cosmetic change.
In Hekate... Payloads on SD root can be launched as well as payloads folder...
@snam11
I think I have found the problem with your chip...
Design fault on the RCMX86.
Remove this circled resistor and your chip should work correctly.
This is not needed. It is going to PA08. Which is just another digital pin. I think he put this in because he was getting stray capacitance on old method 3 causing constant chip reboots.
I think I have found the problem with your chip...
Design fault on the RCMX86.
Remove this circled resistor and your chip should work correctly.
This is not needed. It is going to PA08. Which is just another digital pin. I think he put this in because he was getting stray capacitance on old method 3 causing constant chip reboots.
Last edited by mattytrog,
so i did a test with your brilliant solution and i can say is almost working.
i'm using sx payload
your config:
vol d0
joy d3
switch is booting straight into cfw (no sx os menu at all), vol is ok
ofw boot if pressing power+reset
every time i press reset is like i'm pressing the vol+ button, i can see the through the gui the vol is raising on each reset button press
now the bad part:
the flash connection is gone:i tested at least 20 times pusing the reset button twice faster and with 1 sec delay between pushes, no luck
if the usb cable is connected with the switch powered off, i cannot boot at all. i need to fit the usb cable right after any boot
original conf:
joy d0
vol d3
cfw boot into sx menu, so i can choose to do stuff or boot cfw/ofw
power+reset: ofw boot
flash connection is ok
volume buttons issue is still present
i'm using sx payload
your config:
vol d0
joy d3
switch is booting straight into cfw (no sx os menu at all), vol is ok
ofw boot if pressing power+reset
every time i press reset is like i'm pressing the vol+ button, i can see the through the gui the vol is raising on each reset button press
now the bad part:
the flash connection is gone:i tested at least 20 times pusing the reset button twice faster and with 1 sec delay between pushes, no luck
if the usb cable is connected with the switch powered off, i cannot boot at all. i need to fit the usb cable right after any boot
original conf:
joy d0
vol d3
cfw boot into sx menu, so i can choose to do stuff or boot cfw/ofw
power+reset: ofw boot
flash connection is ok
volume buttons issue is still present
Last edited by snam11,
If connected to USB, it won't boot. The bootloader works that well, it is exactly the same as autoRCM.
Reset should be unaffected. I did tweak the bootloader to near enough stock timings of the reset button press.
Just keep disconnected from the switch... Double press, reconnect to pc. There is no reason that shouldn't continue to work
i did all the possible combinations (to have a flash connection):
power off-double press on reset- plugged usb: nothing happens
power off with usb connected- double press: nothing happens
power on- double press- plugged usb: nothing happens
while powered on- double press- plugged usb: nothing happens
while powered on-usb connected- double press: nothing happens
dunno what else to try
EDIT: btw you know why with your config no menu is available? i don't know how to do the same without any chip (maybe menu bypass is triggered by some key press combination)
power off-double press on reset- plugged usb: nothing happens
power off with usb connected- double press: nothing happens
power on- double press- plugged usb: nothing happens
while powered on- double press- plugged usb: nothing happens
while powered on-usb connected- double press: nothing happens
dunno what else to try
EDIT: btw you know why with your config no menu is available? i don't know how to do the same without any chip (maybe menu bypass is triggered by some key press combination)
Last edited by snam11,
Remove the top one too. Ive circled it. Why have a resistor there??? That is the reset line. Looking at this board, there are... to be polite... A fair few errors.
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To elaborate more: He is using that resistor as a pullup resistor. Not necessary on SAMD21.
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What do you mean menu? The SXOS menu? Its there. Just hold vol+ while booting on SXOS splash screen
Last edited by mattytrog,
yea i meant that.
with "standard" conf. i get the menu at cfw boot.
with yours i get straight boot on cfw without sx menu.
i've just did a test after removing the 2nd resistor
still no way to have the flash connected.
i'm sorry to cause you all this troubles...
nothing happens on the switch (i can still see vol rising up each time i press reset).
same on the connection side.
i tried hitting twice reset on power off and usb connected:first simultaneously,and after with a little delay pressing first reset and after the jumper, and the opposite. still nothing
same with powered on switch and twice reset (and the delay between press)
do you want me to put a led somewhere?
same on the connection side.
i tried hitting twice reset on power off and usb connected:first simultaneously,and after with a little delay pressing first reset and after the jumper, and the opposite. still nothing
same with powered on switch and twice reset (and the delay between press)
do you want me to put a led somewhere?
No. It should be working. There is no reason it shouldn`t. Can you connect a voltmeter across GND and reset pads? What are you getting? If you are getting 3v ish, then the pad is right.
It HAS to be your timing. Too fast or too slow. All it can be.
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