固件更新后，PYCOM FIPY板不再被任何设备识别
木板在固件更新后不再识别，无论插入了哪种设备，都会不断断开和重新连接。
董事会：Fipy 固件：1.20.2.r6 开发委员会：扩展板3.1 固件：0.0.11 LTE固件：39529
我有一个Fipy板，并带有扩展板3.1开发板。我能够成功地更新两个板的固件（它们以前没有工作），并且能够与Lora连接到TTN。我想与LTE连接到Pybytes，并在插槽中有一个Vodafone NB-iot Sim。我一直无法与到目前为止的任何程序连接，例如，在此链接尚未导致连接，所有尝试都会导致核心转储。这是我运行sqnsupgrade.info（）的调制解调器信息时最终的核心转储：
尝试使用LTE调制解调器时，由此产生的核心转储：
由于我能够与洛拉连接，因此我认为问题必须与LTE调制解调器固件相关，但要确保我想更新扩展板3.1固件，以防万一。在本教程之后，我成功地更新了Windows的固件，并获得了此输出：
扩展板3.1固件更新结果：
但是，现在设备管理器完全无法识别设备：
设备管理器不再识别董事会：
它也会断开并重新连接每隔几秒钟，该设备管理器窗口每四秒钟左右重置一次。无论我将其插入什么设备，都会发生这种情况，并且在Linux Mint虚拟机中也未识别它。
我真的不明白会导致问题的原因。我准确地遵循了教程，并获得了预期的输出。在我尝试更新固件之前，LTE不起作用，但是现在设备在设备管理器或原子中根本没有识别，因此无效。我已经尝试删除和重新安装USB驱动程序，尝试使用固件进行同样的操作，但它们都没有用。
所有的帮助都得到赞赏。谢谢。
Board no longer recognised after Firmware update, keeps disconnecting and reconnecting regardless of what device it is plugged into.
Board: FiPy
Firmware: 1.20.2.r6
Development Board: Expansionboard 3.1
Firmware: 0.0.11
LTE firmware: 39529
I have a FiPy board with the Expansionboard 3.1 development board. I was able to successfully update the firmware of both boards (they weren't working before) and was able to connect to TTN with LoRa. I want to connect to PyBytes with LTE, and have a Vodafone NB-IOT sim in the slot. I have been unable to connect with any program thus far, for example, running the program at this link has not resulted in a connection, all attempts result in a core dump. Here is the resulting core dump when I run sqnsupgrade.info() for modem information:
Resulting Core Dump when trying to use LTE modem:
As I was able to connect with LoRa, I assumed the problem must be with the LTE modem firmware, but just to be sure I wanted to update the expansionboard 3.1 firmware just in case. Following this tutorial, I updated the firmware for Windows successfully and got this output:
Expansionboard 3.1 Firmware Update results:
However, now the device is completely unrecognised by the device manager:
Device Manager no longer recognising the Board:
It also disconnects and reconnects every few seconds, indicated by the device manager window resetting every four or so seconds. This occurs regardless of the device I plug it into and it is also not recognised within a Linux Mint virtual machine.
I really don't understand what could be causing the issue. I followed the tutorial exactly and got the expected output. Before I tried updating the firmware, LTE did not work, but now the device isn't recognised at all, in the device manager or in Atom, so nothing works. I've tried deleting and reinstalling the USB driver, tried doing the same with the firmware, none of that has worked.
All help is appreciated. Thanks.
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评论（1）
您是否检查过板上的电压并验证它不是从更新中得出的硬件故障？
如果电压还可以，我建议您使用另一个操作系统，并尝试使用不同的方法来尝试进行故障排除。
我已经有一段时间没看过了，因此有关您进步的任何信息可能会有所帮助。
祝你有一个浪漫的一天！
Have you checked the voltages on the board and verify it is not a hardware failed derived from the update?
If it's voltages are okay, i sugguest you using another OS and trying different ways to comunicate to try to troubleshooting.
I haven't seen this in a while so any information on your advances might be helpful.
Have a noice day!