¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. Nanovna-Users
  2. Topics

Micro SD Card Issue

 

My NanoVNA-H4, HW version4.3_MS from SeeSii, gives a write error when writing to the SD Card. My NanoVNA-H4, HW version 4.2 from R&L Electronics, writes perfectly to the SD card. Both are running 1.2.15 firmware. Is the SeeSii VNA a bad clone? Any ideas?
Thanks,
Tom W0IVJ
 

On Sat, Oct 29, 2022 at 12:12 AM, Tom Thompson W0IVJ wrote:

R93.png

 

Thanks, Hugen,
Attached are two pictures of the area.? The board that does not write has a lot more circuitry around the SD card slot than the board that does write.? Should I just place a ferrite bead in place of R93?
Tom? W0IVJ

On 10/28/2022 6:17 PM, Hugen wrote:
On Sat, Oct 29, 2022 at 12:12 AM, Tom Thompson W0IVJ wrote:




Does Not Write.PNG
Does Write.PNG

 

Hugen,
I replaced R93 with a short and that fixed the problem.
Thank you,
Tom? W0IVJ

On 10/28/2022 6:17 PM, Hugen wrote:
On Sat, Oct 29, 2022 at 12:12 AM, Tom Thompson W0IVJ wrote:
Gene Fish
 

I purchased my H4 from R&L. I only have version 1.1.01. It saves files perfectly to a SanDisk 32 GB Ultra Plus card. I know I need to upgrde the software, Don't know how, but I'm sure I'll figure it out.
 

Greetings, I highly recommend this document from the files section of the group./g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf

On Sunday, January 22, 2023 at 05:14:16 PM EST, Gene Fish <gerufish@...> wrote:

I purchased my H4 from R&L.? I only have version 1.1.01.? It saves files perfectly to a SanDisk 32 GB Ultra Plus card. I know I need to upgrde the software,? Don't know how, but I'm sure I'll figure it out.

1 - 6 of 6