EC200 Incorrect data and ACK received from the server

nilkanth · February 8, 2025, 8:43am

EC200 modules couldnot receive entire data.

First data sent 174 bytes, but received ack of 172 bytes(+QISEND: 172,172,0<\r><\n>)
Second data sent 1021 bytes, but received incorrect ACK(+QISEND: 1161,172,989<\r><\n>)
I have observed this issue when signal strength is 12/22/27.
Could you please help, If there anything missing from my side in execuation?
Please refer below log:
Thank you!

[APP GSM][UART RX] Size_Bytes:11
ATV1

OK

<************************

[APP GSM][UART RX] Size_Bytes:11
ATE0

OK

<************************

[APP GSM][UART RX] Size_Bytes:6

OK

<************************

[APP GSM][UART RX] Size_Bytes:25

869009063777990

OK

<************************

[APP GSM][UART RX] Size_Bytes:16

EC200U

OK

<************************

[APP GSM][UART RX] Size_Bytes:17

Quectel

OK

<************************

[APP GSM][UART RX] Size_Bytes:29

EC200UCNAAR02A13M08

OK

<************************

[APP GSM][UART RX] Size_Bytes:22

+CPIN: READY

OK

<************************

[APP GSM][UART RX] Size_Bytes:38

+QCCID: 89914509006355993535

OK

<************************

[APP GSM][UART RX] Size_Bytes:25

404450635599353

OK

<************************

[APP GSM][UART RX] Size_Bytes:21

+CSQ: 12,99

OK

<************************

[APP GSM][UART RX] Size_Bytes:22

+CPIN: READY

OK

<************************

[APP GSM][UART RX] Size_Bytes:20

+CREG: 0,1

OK

<************************

[APP GSM][UART RX] Size_Bytes:21

+CGREG: 0,1

OK

<************************

[APP GSM][UART RX] Size_Bytes:21

+CEREG: 0,1

OK

<************************

[APP GSM][UART RX] Size_Bytes:21

+CSQ: 12,99

OK

<************************

[APP GSM][UART RX] Size_Bytes:6

OK

<************************

[APP GSM][UART RX] Size_Bytes:6

OK

<************************

[APP GSM][UART RX] Size_Bytes:39

+QIACT: 1,1,1,“10.254.33.158”

OK

<************************

[APP GSM][UART RX] Size_Bytes:6

OK

<************************

[APP GSM][UART RX] Size_Bytes:8

OK

<************************

[APP GSM][UART RX] Size_Bytes:6

OK

<************************

[APP GSM][UART RX] Size_Bytes:43

+QLTS: “2025/02/08,13:53:25+22,0”

OK

<************************

[APP GSM][UART RX] Size_Bytes:24

+QISEND: 0,0,0

OK

<************************

[APP GSM][UART TX] Size_Bytes:174
53 49 00 a6 10 0c 03 16 5b f0 8d 96 c6 04 df d0 81 8d c5 82 93 bf 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 03 f2 16 a8 46 50 65 90 00 89 9e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 25 02 08 13 53 25 28 7f 45 49
<************************

[APP GSM][UART RX] Size_Bytes:15

SEND OK

<************************

[APP GSM][UART RX] Size_Bytes:30

+QISEND: 172,172,0

OK

<************************

[APP GSM][UART TX] Size_Bytes:1021
53 49 03 f5 40 70 fb 90 08 00 00 00 00 00 00 00 00 91 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96 0e 00 00 00 ff 00 00 00 00 00 00 ff 00 00 00 97 0c 00 00 00 00 00 00 00 00 00 00 00 00 98 04 00 00 00 00 99 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9a 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9b 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 06 00 00 00 00 00 00 a1 08 00 00 00 00 00 00 00 00 a2 08 00 00 00 00 00 00 00 00 a3 05 00 00 00 00 00 a4 04 00 00 00 00 a8 08 00 00 00 00 00 00 00 00 71 fb 90 08 00 00 00 00 00 00 00 00 91 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96 0e 00 00 00 ff 00 00 00 00 00 00 ff 00 00 00 97 0c 00 00 00 00 00 00 00 00 00 00 00 00 98 04 00 00 00 00 99 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9a 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9b 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 06 00 00 00 00 00 00 a1 08 00 00 00 00 00 00 00 00 a2 08 00 00 00 00 00 00 00 00 a3 05 00 00 00 00 00 a4 04 00 00 00 00 a8 08 10 00 00 00 00 00 00 00 72 fb 90 08 00 00 00 00 00 00 00 00 91 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96 0e 00 00 00 ff 00 00 00 00 00 00 ff 00 00 00 97 0c 00 00 00 00 00 00 00 00 00 00 00 00 98 04 00 00 00 00 99 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9a 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9b 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 06 00 00 00 00 00 00 a1 08 00 00 00 00 00 00 00 00 a2 08 00 00 00 00 00 00 00 00 a3 05 00 00 00 00 00 a4 04 00 00 00 00 a8 08 20 00 00 00 00 00 00 00 73 fb 90 08 00 00 00 00 00 00 00 00 91 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96 0e 00 00 00 ff 00 00 00 00 00 00 ff 00 00 00 97 0c 00 00 00 00 00 00 00 00 00 00 00 00 98 04 00 00 00 00 99 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9a 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9b 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 06 00 00 00 00 00 00 a1 08 00 00 00 00 00 00 00 00 a2 08 00 00 00 00 00 00 00 00 a3 05 00 00 00 00 00 a4 04 00 00 00 00 a8 08 30 00 00 00 00 00 00 00 ef f4 45 49
<************************

[APP GSM][UART RX] Size_Bytes:15

SEND OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:43

+QLTS: “2025/02/08,13:53:46+22,0”

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

[APP GSM][UART RX] Size_Bytes:31

+QISEND: 1161,172,989

OK

<************************

Hayes · February 28, 2025, 5:45am

This issue requires you to provide an Aplog for further analysis.