HWFly stuck training - infinite loop

[YoHonJoe]

Hello all,

So I installed an HWfly v4 a while back on my OLED and I restarted recently and got a solid yellow which is a firmware error. After this, I updated the firmware and reset the chip.
Now I am getting an infinite training light and no error code after 15 minutes.

Values of C and D are 0.6 which is correct and within range
I can still boot into OFW perfectly fine
Yes, I have checked dat0 multiple times and the C value is 0.6

Any advice would be appreciated

 

[MichiS97]

Could you share some pictures of your soldering?

 

[YoHonJoe]

Sure, I'll take some pics soon. Did you want specific places on the board?
Also, do you happen to know what the values of A and B should be?

 

[swutch]

Oled with Samsung Nand

Black to ground:
3v3 0.812v
C 0.605
A 0.825
D 0.826
B OL

Red to ground:

3v3 0.453
C 0.472
A 0.474
D 0.473
B 0.442


maybe a firmware problem:
https://gbatemp.net/threads/hwfly-modchip-stuck-in-training.621230/post-10027923

 

[YoHonJoe]

Oled with Samsung Nand

Black to ground:
3v3 0.812v
C 0.605
A 0.825
D 0.826
B OL

Red to ground:

3v3 0.453
C 0.472
A 0.474
D 0.473
B 0.442


maybe a firmware problem:
https://gbatemp.net/threads/hwfly-modchip-stuck-in-training.621230/post-10027923

Not sure which NAND I have, but here are my values.
Tried the firmware on that post, but sadly still have the same issue.

red to ground
3v3 0.43
C 0.67
A 0.46
D 0.67
B 0.41

If I do black to ground I get weird results
C OL
a 0.6
D OL
B OL

Does this indicate C and D problems with my soldering? Why would red to ground seem normal?

 

[Donnie-Burger]

Sure, I'll take some pics soon. Did you want specific places on the board?
Also, do you happen to know what the values of A and B should be?

Its your C point and 400ish red probe on ground is correct reading. Adapter needs re-positioning.

 

[YoHonJoe]

Its your C point and 400ish red probe on ground is correct reading. Adapter needs re-positioning.

It was 0.6 when I first installed a while back and it worked fine

 

[swutch]

Stuck in training mode can also be a bad C or A point.