Hacking Hardware Picofly - a HWFLY switch modchip

[m3du54]

where is the port or button from tiny?
Yes, ** error code 3 times in total. AFAIK, the picofly fw check rst first so you got error code/LED **
View attachment 407773

Sorry my bad. Not tiny, it's zero. So 3 times ** yellow after a long blue is normal when connected to usb?

 

[jkyoho]

Sorry my bad. Not tiny, it's zero. So 3 times ** yellow after a long blue is normal when connected to usb?

Yes normal. that is just 3 times ** RST is not connected

 

[Nephiel]

-If you did not remove the LDO (the little black 5-legged thingy on thr back) it might couse a problem. You should remove it since it's not needed anymore.

Isn't that for the rp2040 Zero only? Should we remove the LDO from the Tiny versions as well?

If you don't want to buy from ali:
https://munia.io/devices
If you wanna make your own:
https://github.com/Pheeeeenom/BGA153-DAT0-Breakout

My only gripe with those is that they don't have any anchor points at all.

 

[QuiTim]

Isn't that for the rp2040 Zero only? Should we remove the LDO from the Tiny versions as well?


My only gripe with those is that they don't have any anchor points at all.

To be honest, on the first 10pcs I did not remove the LDO (never had any problem), I only started doing so after Rehius recomanded and after seeing some unexplained problems on Zero boards. Also, on the Zeros we need to remove other things aswell so one more component does not make a difference but for the Tinys I would not go through the trouble. There is really no community feedback that there is a problem there.

As for dat0 adapters I'm with you on that one, much easier to use soldering anchor points than solder mask/glue. But I gathered that if someone wants to go to the trouble of making their own they might add anchor points to this design since all the other measurments are already in the gerber files so it saves you alot of time/trouble.
Cheers

 

[psycho-neon]

The kamikaze spot is the same on the v2 as it is on the oled?

Oh no need to expose dat0 on v2. Its a different post just got merged with old one.

 

[m3du54]

Anyone tried the alternate points on EEMC for V2?
It looks a lil easier than the points on the mainboard.
I'm thinking of going that way. Any possible downfalls?

 

[QuiTim]

Anyone tried the alternate points on EEMC for V2?
It looks a lil easier than the points on the mainboard.
I'm thinking of going that way. Any possible downfalls?

I've only used 3v3 from that board a couple of times, it was easier then using the one on the capacitor. For me the other points are easier on the board but you can mix and match

 

[bvang913]

Anyone tried the alternate points on EEMC for V2?
It looks a lil easier than the points on the mainboard.
I'm thinking of going that way. Any possible downfalls?

All my v2 installs I've done them on the emmc board and have not had any issues.

 

[chronoss]

Hi !!!

For the first time, i get this error " **= No eMMC block 1 read (should not happen) "

It's a v1 patched, someone can help me please ?

 

[cilione]

Hi !!!

For the first time, i get this error " **= No eMMC block 1 read (should not happen) "

It's a v1 patched, someone can help me please ?

Have you plugged in the eMMC correctly?

 

[Schn1ek3]

Hello,
I installed a Picofly v5 today (which is similar to the hwfly) but my switch only starts in RCM mode (it already did before the installation). The Picofly flashes short-long-short. Can anyone help me with this problem?
I have measured the wiring and everything seems to be connected. Unfortunately, holding the power button for a long time does not get me out of rcm mode.

Edit:
I Have an OLED Switch

 

[deeps]

Hello,
I installed a Picofly v5 today (which is similar to the hwfly) but my switch only starts in RCM mode (it already did before the installation). The Picofly flashes short-long-short. Can anyone help me with this problem?
I have measured the wiring and everything seems to be connected. Unfortunately, holding the power button for a long time does not get me out of rcm mode.

Edit:
I Have an OLED Switch

first off, you have a chinese clone chip, they are not supported in this thread
secondly, did you install a chip in a broken switch hoping to get support in the chip threads when it unsurprisingly was still broken? go start your own thread mate, your problems have nothing to do with the chip

 

[Schn1ek3]

first off, you have a chinese clone chip, they are not supported in this thread
secondly, did you install a chip in a broken switch hoping to get support in the chip threads when it unsurprisingly was still broken? go start your own thread mate, your problems have nothing to do with the chip

I'm sorry. i've started a own Thread. Thank you

 

[Myst0gan]

time for stocking guys. the price is good now.

You got a link?? Yesterday I paid like 2,60€ from that choice offer

Nvm, I found it

Post automatically merged: Dec 8, 2023

Anyone using lexar SD card when installing picofly ?
View attachment 406356

I got failed to init sdcard msg and cant boot to hekate
View attachment 406355

When i try sandisk sdcard it can boot to hekate

But when i try this lexar on my hwfly it can boot normal
Is thia lexar not compatible with picofly ?

Is it formatted to fat32??

 

[BlueBeans]

Oh no need to expose dat0 on v2. Its a different post just got merged with old one.

Ooooo ok. I was confused as to why you were doing that on a v2.

 

[superxoi]

You got a link?? Yesterday I paid like 2,60€ from that choice offer

Nvm, I found it

The price is normal now friend. It was discounting when i bought it. It has arrived though.

 

[BlueBeans]

Isn't that for the rp2040 Zero only? Should we remove the LDO from the Tiny versions as well?


My only gripe with those is that they don't have any anchor points at all.

I’m glad you said that as I didn’t even notice.

 

[superxoi]

You mean this one. I have not run into any problem yet but for cautious i will remove it in the future.

Post automatically merged: Dec 9, 2023

To be honest, on the first 10pcs I did not remove the LDO (never had any problem), I only started doing so after Rehius recomanded and after seeing some unexplained problems on Zero boards. Also, on the Zeros we need to remove other things aswell so one more component does not make a difference but for the Tinys I would not go through the trouble. There is really no community feedback that there is a problem there.

As for dat0 adapters I'm with you on that one, much easier to use soldering anchor points than solder mask/glue. But I gathered that if someone wants to go to the trouble of making their own they might add anchor points to this design since all the other measurments are already in the gerber files so it saves you alot of time/trouble.
Cheers

 

[chronoss]

Have you plugged in the eMMC correctly?

Yes beacause it boot on ofw...

 

[psycho-neon]

Yes beacause it boot on ofw...

Try to rewire clk cmd and dat0, had this issue before and it was a faulty wire (must have been cut in between inside)

And also try to clean the contacts and make sure no excess flux is there.