Hi, 这个问题解决了吗？如果已解决，能否分享一下原因？
如果问题仍未解决，可以提供更多信息吗？例如，您之前是否在硬件上成功使用过 ESP-WROOM-02-AT 固件？或者您是否尝试过使用 CuteCom 串口工具进行测试？此外，请确认串口的波特率设置是否正确（默认固件应为 115200）。

ESP32/ESP32C3 AT is based on bluedroid, and ESP32C2/ESP32C6 AT is based on nimble protocol stack. If you need to develop new BLE AT commands based on ESP32C6 AT, please call nimble API.

If 'Write' and 'Write without Response' are supported, ‘write’ is used by default.

Tested with ESP32C6 version v4.0.0.0 AT version firmware, no related issues were found. Please use the AT firmware on the esp-at master branch to test whether this problem still exists. If this problem still exists, please provide detailed logs of the AT command port and log port with timestamps.

In SPP mode, the output of the +BLEDISCONN log is controlled by the AT+SYSMSG command. You can refer to the usage instructions for that command for more information.
Generating +BLEDISCONN does not automatically exit SPP mode, you should always execute +++ to exit SPP mode if possible.

1. The operation of executing `+++` to exit BLE passthrough is already described in the AT documentation.
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2. If you want the ESP device to actively negotiate MTU as a BLE server, please execute the `AT+BLECONN` command to reconnect to the BLE client after establishing the ...

该内容与 [此链接](https://esp32.com/viewtopic.php?f=34&t=43723) 重复，已在该帖子中进行了回复。

可以抓包看下 HC-06 模块发过来的数据是不是在传输到 esp32 之前就已经分成好几包了哈。可以在 MCU 端对于 ESP32 接收到的数据进行重新组包。

AT 不支持同时使用 HID 和 BluFi 指令。

你是直接使用 ESP-IDF 的示例代码吗？如果是的话，可以在 [ESP-IDF 中文版块](viewforum.php?f=25) 提交你的问题，并提供你使用的 ESP 软件版本信息，以及复现该问题的具体步骤，这样可能会更快得到回应。

关于这个问题，你可以抓包，查看手机端发送的包中的 MTU 值。如果包中的 MTU 值正确，请检查 `menuconfig` 中的 BLE 配置，看看是否对 MTU 设置了限制。