SIMCOM 7600E ESP32 MQTT client is busy issue №2

Projects Networking, Protocols, and Devices
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I have answer for topic SIMCOM 7600E ESP32 MQTT client is busy issue
I've got same problem, module SIM7600E-H mPCIE with firmware LE11B08SIM7600M22.
And it solved by getting new firmware LE11B13SIM7600M22.

You need links:

  1. Here I took the firmware and how to sew
    (http://www.ingcool.com/wiki/SIM7600CE-T/E-H/A-H/G-H_4G_Modules#TCP)

All infomation you can find on links

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And one link to solve error failed sahara
2. Here is a description of the solution to my firmware problem
(SIM7600 LTE Firmware update. | Forum for Electronics)

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