Hello all - I have one of these. I know they are no longer sold, but I am hoping I can find some help here on the forum. It was brand new (I cut it out of the sealed plastic bag).
I have it connected to a Windows laptop with a TTL-to-USB adapter. I downloaded the latest version of Universal Reader Assistant 6.3
Here is the issue: It will not read in the normal mode (where you click “Read” on the “tag results” tab), I always get this error:
It WILL read if I go to the Tag Inspector tab and click read:
I am also able to write to tags using the other tabs (Write EPC, etc) and successfully read them back (again: ONLY in Tag Inspector, not in the general “Tag Results” view where you can read multiple tags at the same time)
So, this proves the hardware (and my serial USB board) works. I am powering the card from the USB adapter, but I have set the TX and RX power down to 4dBm (I have to put the tag directly on the board to get a read, but it works). So, that is not the problem.
I am using the on-board antenna, have selected antenna 01, and not changed the onboard jumper or tried to add an external antenna.
I tried Googling the error. Oddly enough, the search does return somewhat relevant hits related to Jadak software, but most of the resulting documents swap the word “parameter” for “value” (!) and seem to all be related with the newer M7E Hecto product
Example from https://www.jadaktech.com/wp-content/uploads/2024/06/TM_HECTO-UG-Rev_06142024.pdf
I don’t see why this would be a firmware issue, but I looked through the documentation for help and it said that Firmware was provided here. There are a lot of files at that link; I was not sure which to download. I also didn’t understand if/why a new license would be needed and didn’t want to mess anything up, so I did not pursue this yet.
Here’s what the help file said:
The section provides a means to upgrade the firmware and license of the connected reader.
- Firmware: Steps to update the Firmware-
- Click Choose File and navigate to the filesystem location where the firmware file is located.
- Select the firmware file and click Open.
- Click Update.
- Upon completion, a pop up message will come to indicate it has been completed.
- License: Steps to update the License-
- Give the ‘License Key’ generated for the reader in the provided space.
- Click Update.
- Upon completion, a pop up message will come to indicate it has been completed.
Note : The latest firmware is always available on https://www.jadaktech.com/resources/rfid-document-library.
Note : This utility can be used to downgrade firmware also.
Here’s my firmware info:
RFID Engine : M6e Nano
COM/IP : COM6
Firmware Version : 1.07.03.17
Hardware Version : 30.00.00.02 Rev 0G
Serial Number : (redacted)
URA Version : 6.3.29.29
Mercury API Version : 1.37.3.29
Here’s a log. All I did here was connect to the board and performed two operations:
06/15/2026 10:12:31.054 PM Sending
FF 00 03 1D 0C
06/15/2026 10:12:31.058 PM Received
FF 14 03 00 00 14 12 08 00 30 00 00 02 20 17 09
25 01 07 03 17 00 00 00 10 A6 6E
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FF 00 03 1D 0C
06/15/2026 10:12:31.139 PM Received
FF 14 03 00 00 14 12 08 00 30 00 00 02 20 17 09
25 01 07 03 17 00 00 00 10 A6 6E
06/15/2026 10:12:31.155 PM Sending
FF 00 72 1D 7D
06/15/2026 10:12:31.164 PM Received
FF 01 72 00 00 2C 48 2B
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FF 00 67 1D 68
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FF 01 67 00 00 0D B4 8C
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FF 00 71 1D 7E
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FF 11 71 00 00 0D 0E 04 05 06 08 09 0B 0C 10 11
12 13 14 15 16 FF 12 16
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FF 01 62 01 BE BC
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FF 07 62 00 00 01 01 86 0A 8C 00 00 8D 6A
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FF 01 62 01 BE BC
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FF 07 62 00 00 01 01 86 0A 8C 00 00 8D 6A
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FF 02 92 0A 8C 4B D5
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FF 00 92 00 00 27 3B
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FF 02 94 0A 8C 2B 13
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FF 00 94 00 00 47 FD
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FF 00 65 1D 6A
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FF C8 65 00 00 00 0E 21 30 00 0E 08 30 00 0E 1C
80 00 0E 13 E8 00 0E 10 00 00 0E 1E 10 00 0E 03
80 00 0E 06 A0 00 0E 17 D0 00 0E 10 C8 00 0E 16
40 00 0E 0A 88 00 0E 07 68 00 0E 0E 70 00 0E 23
88 00 0E 24 50 00 0E 0C E0 00 0E 1A F0 00 0E 18
98 00 0E 0D A8 00 0E 1B B8 00 0E 11 90 00 0E 01
28 00 0E 14 B0 00 0E 05 D8 00 0D FF 98 00 0E 22
C0 00 0E 19 60 00 0E 08 F8 00 0E 21 F8 00 0E 1D
48 00 0E 04 48 00 0E 05 10 00 0E 15 78 00 0E 02
B8 00 0E 25 18 00 0E 1E D8 00 0E 12 58 00 0E 13
20 00 0E 00 60 00 0E 0B 50 00 0E 20 68 00 0E 0C
18 00 0E 1A 28 00 0E 01 F0 00 0E 25 E0 00 0E 09
C0 00 0E 0F 38 00 0E 17 08 00 0E 1F A0 5F F6
06/15/2026 10:12:31.237 PM Sending
FF 01 62 01 BE BC
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FF 07 62 00 00 01 0A 8C 0A 8C 00 00 54 B4
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FF 01 62 01 BE BC
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FF 07 62 00 00 01 0A 8C 0A 8C 00 00 54 B4
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06/15/2026 10:12:31.286 PM Sending
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FF 02 10 00 00 F0 93
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FF 37 10 00 00 00 7F 01 02 41 49 02 02 00 30 04
02 96 19 08 02 00 01 10 0B 34 30 30 2D 30 30 36
37 2D 30 31 20 02 30 47 SERIAL NUMBER REDACTED FA 51
06/15/2026 10:12:31.338 PM Sending
FF 02 10 00 40 F0 D3
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FF 16 10 00 00 00 40 SERIAL NUMBER REDACTED 19 6C
06/15/2026 10:12:31.364 PM Sending
FF 02 6A 01 03 2E 4D
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FF 03 6A 00 00 01 03 00 3D 44
06/15/2026 10:12:31.368 PM Sending
FF 03 9A 01 03 00 AC 5D
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FF 03 61 00 00 05 01 00 61 DF
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06/15/2026 10:12:44.255 PM Received
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06/15/2026 10:12:49.245 PM Received
FF 00 94 00 00 47 FD
06/15/2026 10:12:49.263 PM Sending
FF 02 94 01 AE 20 31
06/15/2026 10:12:49.265 PM Received
FF 00 94 00 00 47 FD
06/15/2026 10:12:49.290 PM Sending
FF 02 94 01 86 20 19
06/15/2026 10:12:49.293 PM Received
FF 00 94 00 00 47 FD
06/15/2026 10:12:49.685 PM Sending
FF 02 94 01 A4 20 3B
06/15/2026 10:12:49.688 PM Received
FF 00 94 00 00 47 FD
06/15/2026 10:12:50.396 PM Sending
FF 02 94 01 86 20 19
06/15/2026 10:12:50.398 PM Received
FF 00 94 00 00 47 FD
06/15/2026 10:12:50.436 PM Sending
FF 02 94 01 68 20 F7
06/15/2026 10:12:50.438 PM Received
FF 00 94 00 00 47 FD
06/15/2026 10:13:03.723 PM Sending
FF 02 93 00 05 51 7D
06/15/2026 10:13:03.739 PM Received
FF 00 93 00 00 37 1A
06/15/2026 10:13:03.739 PM Sending
FF 03 91 02 01 01 42 C5
06/15/2026 10:13:03.743 PM Received
FF 00 91 00 00 17 58
06/15/2026 10:13:03.743 PM Sending
FF 08 22 88 10 00 13 02 EE 00 57 4C 28
06/15/2026 10:13:04.494 PM Received
FF 00 22 04 00 84 E0
06/15/2026 10:13:09.816 PM Sending
FF 03 9A 01 0C 01 A3 5C
06/15/2026 10:13:09.819 PM Received
FF 00 9A 00 00 A6 33
06/15/2026 10:13:09.819 PM Sending
FF 01 62 00 BE BD
06/15/2026 10:13:09.822 PM Received
FF 03 62 00 00 00 01 72 AA D4
06/15/2026 10:13:09.822 PM Sending
FF 01 64 00 B8 BD
06/15/2026 10:13:09.824 PM Received
FF 03 64 00 00 00 01 68 8D 57
06/15/2026 10:13:09.824 PM Sending
FF 03 9B 05 02 02 DE EA
06/15/2026 10:13:09.830 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.830 PM Sending
FF 03 9B 05 12 00 CE E8
06/15/2026 10:13:09.833 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.833 PM Sending
FF 03 9B 05 16 00 CA E8
06/15/2026 10:13:09.835 PM Received
FF 00 9B 01 05 B7 17
06/15/2026 10:13:09.835 PM Sending
FF 03 9B 05 10 00 CC E8
06/15/2026 10:13:09.851 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.851 PM Sending
FF 03 9B 05 11 00 CD E8
06/15/2026 10:13:09.857 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.857 PM Sending
FF 03 9B 05 02 02 DE EA
06/15/2026 10:13:09.863 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.863 PM Sending
FF 03 9B 05 12 00 CE E8
06/15/2026 10:13:09.865 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.865 PM Sending
FF 03 9B 05 16 00 CA E8
06/15/2026 10:13:09.868 PM Received
FF 00 9B 01 05 B7 17
06/15/2026 10:13:09.868 PM Sending
FF 03 9B 05 10 00 CC E8
06/15/2026 10:13:09.884 PM Received
FF 00 9B 00 00 B6 12
06/15/2026 10:13:09.885 PM Sending
FF 03 9B 05 11 00 CD E8
06/15/2026 10:13:09.891 PM Received
FF 00 9B 00 00 B6 12
I apologize for breaking this post up into multiple messages. I signed up for the forum, then composed the post, and after clicking “Create Topic” a popup said that new users can’t post more than one link or embedded graphic, so I had to split the post up into pieces. Then it said I was posting too fast and had to wait 
Thanks for any help you can provide. Without access to the Read function on the Tag Results tab, I don’t see a way to play Radio Horsehoes as shown in this fun video 
PS: I threw AI at this and it thinks that the following commands show URA trying to iterate through multiple antenna ports whereas the board only has one antenna connected/active.
Sending FF 02 6B 05 10 … Sending FF 02 6B 05 11 … Sending FF 02 6B 05 02 … Sending FF 02 6B 05 00 … Sending FF 02 6B 05 01 … Sending FF 02 6B 05 12 … Sending FF 02 6B 05 16 …
AI also says:
These look exactly like: - **multi-port / multi-antenna probing logic**
That logic is valid for:
- M6e
- Micro
NOT valid for Nano
I am not sure if this is the problem (it does seem to jibe with the example of this error I found in the PDF above). If so, how can I fix it? I assume this is something URA is doing that I can’t control (I think I have the antenna parameter set correctly? There’s only one and it is ‘01’). Do I need an older version of URA?
The URA works, no need for another one.
In read/write option, select:
antenna dynamic
do NOT select antenna detection and NOT select antenna multiplexing
select 01
select Gen2
do NOT select any of the GPIO’s
do NOT select filter
Just in case you wonder the debug file:
result.txt (76.9 KB)
Your firmware on the M6E is old (1.07). There is a 1.9 release available from Jadak/thingmagic that you can load with the URA menu (bottom right hand side)
Hello @paulvha - Thank you for reading and responding to my post!
I double checked these parameters were set the way you mentioned. These are the default settings (except that (antenna) 01 has to be checked each time I connect to the reader). However, I still get the same error:
I tried with “Read Continuously” enabled, and get a slightly different error:
Is there anything else I can try?
Thank you again
Thank you!
What is the license? Will I need a new one if I install new firmware?
Will I lose any existing functions if I upgrade?
Can I downgrade if there’s an issue? Where can I find a copy of this old firmware (I don’t see it on (https://www.jadaktech.com/resources/rfid-document-library/)? Can I somehow save a copy from the firmware installed on the device now?
