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picofly black screen with sd card / no card sd screen without card

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hey, I have a problem with installing picofly on a v2 switch I used a hwfly pico with a flex cable. When switched on, the chip flashes blue then yellow. Without an SD card I have the "no SD card" screen but when I put an SD card prepared with Hats 1.6.2 the chip starts in the same way but the screen remains black. sorry for the limited english i translate my french with google
 
how then tried to start in ofw? should I unplug the chip? and put the nand back in its location without the chip? I'm sorry these questions may be stupid but I'm a noob on these installations and I prefer not to do anything stupid here are some photos of the chip used.
 

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No need to disconnect the modchip
Press power once while holding VOL+ & VOL- for a few seconds you should be greeted with boot logo
If you get blue screen unfortunately you're in trouble
 
OK thank you I will take the test when I get home from work. It seems to me I did it yesterday and nothing happens black screen
Post automatically merged:

I confirm startup ofw black screen
 
Last edited by jimbow02,
I have the impression that they are good. see photo sorry for the quality. is it possible to leave the flex cable to try to start without a chip or I have to desolder?
 

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It's likely your eMMC isn't properly seated. Return the daughterboard to the original socket and see if your system boots. If it does boot normally then you should know where the problem lies, either from the modchip itself or your SD card.
 
I was thinking of doing that. But the flex cable does not pose a problem, no need to unsolder it?
Post automatically merged:

I found the problem the console is dead. when I put the chip in the flex cable it pulled on one of the processor resistors and it was broken.... Thank you for your help
 
Last edited by jimbow02,
jimbow02 said:
I was thinking of doing that. But the flex cable does not pose a problem, no need to unsolder it?
Post automatically merged:

I found the problem the console is dead. when I put the chip in the flex cable it pulled on one of the processor resistors and it was broken.... Thank you for your help
Click to expand...
Missing caps on SoC will not prevent your system from booting. It seems you just used too much heat while ripping the flex. The presence of the flex will not cause any harm to your system.
 
Hassal said:
No need to disconnect the modchip
Press power once while holding VOL+ & VOL- for a few seconds you should be greeted with boot logo
If you get blue screen unfortunately you're in trouble
Click to expand...
Hi sorry for use your post, but I have the same problem, and the same chip from image,

No sd card logo, with no sd.

Black screen with lights on with sd.

Turn the switch with no sd card, + and - volume put me in sysnand at least.

Seller send without firmware, so I installed 2.73 using usb port on hwfly 2040.

It worked the first time with sd when I installed, I made a nand backup, put in sysnand, asked for rebot to remove old nintendo switch files from sd card and dont turned more on.
 
Loko4 said:
Hi sorry for use your post, but I have the same problem, and the same chip from image,

No sd card logo, with no sd.

Black screen with lights on with sd.

Turn the switch with no sd card, + and - volume put me in sysnand at least.

Seller send without firmware, so I installed 2.73 using usb port on hwfly 2040.

It worked the first time with sd when I installed, I made a nand backup, put in sysnand, asked for rebot to remove old nintendo switch files from sd card and dont turned more on.
Click to expand...
I don't know what you're asking but if your system isn't booting with modchip just disconnect it and see what happens
 
Hassal said:
No need to disconnect the modchip
Press power once while holding VOL+ & VOL- for a few seconds you should be greeted with boot logo
If you get blue screen unfortunately you're in trouble
Click to expand...
I have pressed power once while holding VOL+ & VOL- for a few seconds then I got a blue screen.. Can you tell me is there any way I can fix it?
 
Hassal said:
What do you get when you boot into OFW? Blue screen? Black?
Click to expand...
I have the same issue as above, and when I boot into ofw its black screen
Post automatically merged:

jimbow02 said:
I have the impression that they are good. see photo sorry for the quality. is it possible to leave the flex cable to try to start without a chip or I have to desolder?
Click to expand...
Did you ever figure out the issue?
 
Last edited by david_enoh,
Hassal said:
What do you get when you boot into OFW? Blue screen? Black?
Click to expand...
Some similar happened to me, I got blue directly
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Wasz7866 said:
I get a black screen what could Ii saw that failure on some videos, when is black could be the backlight but it's weird that happens only with OFW, I got a lite that boots because I heard when I touch, but screen is dead, the only thing I made was changing flex receptacle from motherboard but I was able to see some on the screen the only thing was the zl and minus buttons not working
Click to expand...
 
Wasz7866 said:
I get a black screen what could I do
Click to expand...
The symptoms being discussed here (boot to black screen or blue screen upon pressing Vol + -) seem to be due to miscommunication (or lack thereof) between the APU and the memory chips. If you're positive your APU is fine and nothing's been done to the firmware chip, try this: replace this chip
bitch.png

And see how it goes. It's supposed to supply the APU with 0.8V, possibly to communicate with the RAM.
I don't know why or exactly how it goes bad and whether it has anything to do with Picofly, but I think it's related.
If that doesn't work, no panic. TEST the output of this chip (there should be 0.8V there) and if you get that but the console still boots to a black or blue screen, flip the board and check all the voltage outputs from the MAX77620 chip for both boot phases:
this.png
 
IMG1205_001.JPG
IMG1205_002.JPG
IMG1205_003.JPG
IMG1205_004.JPG
IMG1205_005.JPG
IMG1205_006.JPG
IMG1205_007.JPG


I reflowed all the pins multiple times and checked the solder joints, but I’m still only seeing one blue LED and three red ones. After that, I also double-checked the screen connections, but it still gives a black display.
 
hass00789 said:
View attachment 567006View attachment 567007View attachment 567008View attachment 567009View attachment 567010View attachment 567011View attachment 567012
View attachment 567013
I reflowed all the pins multiple times and checked the solder joints, but I’m still only seeing one blue LED and three red ones. After that, I also double-checked the screen connections, but it still gives a black display.
Click to expand...
Your A points and D points are bridged. Difficult to tell if your SP1 point is attached at all
 

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