开云体育

I have a new H4 with a micro SD port. The port polarity is not marked on the case but with a little care I was able to insert it correctly. However, when I try to save a screen plot I get "fail write". What have I missed?
Rudy N6LF

Hi Rudy!
Be sure to have the unit fully charged, and use a SD card max 32GB formatted with FAT32. Turn unit OFF, insert the card and then ON again. If you try to put it the wrong way, there is some kind of lock, you just "feel" it. If correct, you feel the spring. If you use a little force, it's possible to insert it the wrong way. Be careful!
I had the same expirience with another unit!

Karl

Some earlier versions of FW had timing issues. Use the latest HUGEN or DiSlord FW for the H4 and you should be OK.

Hi Rudy.
I own a H4-clone (hardware version 4.2.1).
It came with the soldering pads free and no Transflash connector soldered on it.
I provided for by myself.
The RTC quartz was missing too and I installed it in the same time of the MicroSD slot.
When I try to save a screenshot I obtain the same error like you:
Fail write
Hi Rudy.
I own a H4-clone (hardware version 4.2.1).
It came with the soldering pads free and no Transflash connector soldered on it.
I provided for by myself.
The RTC quartz was missing too and I installed it in the same time of the MicroSD slot.
When I try to save a screenshot I obtain the same error like you:
Fail write
More precisely, the writing of the .BMP file starts but it remains of length 0 and so in the memory card I find the BMP files created but empty.
I reformatted the SD card as FAT, FAT32 and exFAT also.
That didn't solved.
The very strange thing is that I have no problem instead to save S1P, S2P and firmware dump as .bin (about 250kbytes of data).
In those cases the data saving goes perfectly.
I recently reflashed again last release of DiSlord firmware: 1.1 of 2021/12/11.
I lost all my settings and even didn't solved.
Firmware bug?
73
Sergio - IK6QRE

Hi Sergio,
My H4 had the SD card slot installed already. All I had to do to get the SD working was use a 16GB card. It would not work with larger capacity cards.
73, Rudy N6LF

Mine is a 2GB only.
It's big enough for my fun!
As you can see in my attached pic, my problem is limited with bmp (screenshot) files only.
They are created but 0 lenght.
All the rest works well.
Many thanks for your kind reply.
73, Sergio IK6QRE

Answering to myself, I just solved with my screenshot saving issue.
It was guilt my 2GB Transcend transflash: the only device in my avalaibility till yesterday.
Maybe the architecture that was not SDHC/SDXC but as a normal SD?
It was so strange that it correctly saves S1P, S2P and BIN but not BMP (screenshot).
Now I just tested two other memories I have borrowed few minutes ago: a 16GB Moric and a 32 by Samsung: everything works perfectly with them.
Hoping my experience helps someone.
73, Sergio IK6QRE