EM12-G (FW: EM12GPAR01A21M4G) spontaneous hangups

В Китай её обратно на переплавку)))

Мощно!!! Руками и ногами - ЗА. Если бы на английском, а лучше на китайском - вообще пестня. )))

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Наивно полагать, что китайцы, даже на китайском, читают эту ветку…

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А что, уже есть 12-я прошивка для EG12-EA?

Сегодня обновил EG12-EA до EG12EAPAR01A11M4G с сайта микротиков. Наблюдаем.

На проошивке EG12EAPAR01A11M4G uptime был менее суток, при минимальном входящем и исходящем трафике.

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Hi,

As far as I know, this problem is caused by Qualcomm patch integration.
The boundary between good and bad versions is 2021.03.12. Versions before 2021.03.12 are OK, but later versions have problems.

You can use the EM12GPAR01A18M4G release for testing before 2021.03.12. In the meantime,disabling and enabling the “Quectel Wireless Ethernet Adapter” in the device manager.–>You can try to use MIBM to dial, AT+QCFG=“USBNET”,2 and restart modem; Then uninstall the Quectel Wireless Ethernet Adapter driver, right-click and select uninstall, and during the uninstall process, select to delete the driver
1665213681316

If so, turn everything back as it was, and also in the EG12-EA modem if the problem is the same.

Not everyone uses Windows as their home OS.
Many use Linyx and IOS.

Тут ветка про EM12-G. не распаянный на плате)

Топикстартер не против обсуждения в этой ветке и модема EG12-EA (судя по его коменту).

у меня вообще с этим модемом вот такое

[2.094704] usb 1-1.3: device descriptor read/64, error -32
[3.237663] usb 1-1.3: new low-speed USB device number 5 using xhci-hcd
[3.238093] usb 1-1.3: Device not responding to setup address.
[3.442098] usb 1-1.3: Device not responding to setup address.
[3.650671] usb 1-1.3: device not accepting address 5, error -71
[3.727673] usb 1-1.3: new low-speed USB device number 6 using xhci-hcd
[3.728094] usb 1-1.3: Device not responding to setup address.
[3.931098] usb 1-1.3: Device not responding to setup address.
[4.137663] usb 1-1.3: device not accepting address 6, error -71
[4.138164] usb 1-1-port3: unable to enumerate USB device

с EM06-E все ровно.
и откатывал на 18, и 21 накатывал 007, периодически модем не видно в системе. Arch, ядро 5.19.17 Khadas VIM3 MX2

Проблему решил, пересобрав модуль /drivers/usb/serial/option.ko, согласно гайду от Quectel.

From 86469ecfc5839a0d35e95a60df79ae7993b07fc3 Mon Sep 17 00:00:00 2001
From: BytEvil <***@mail.ru>
Date: Wed, 2 Nov 2022 10:32:51 +0400
Subject: [PATCH] Add Reset-resume Mechanism for Quectel modems

---
 option.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/option.c b/option.c
index 697683e..2a66f8b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2209,6 +2209,9 @@ static struct usb_serial_driver option_1port_device = {
 #ifdef CONFIG_PM
        .suspend           = usb_wwan_suspend,
        .resume            = usb_wwan_resume,
+#if 1 //Added by Quectel
+        .reset_resume      = usb_wwan_resume,
+#endif
 #endif
 };

--
2.38.1

Кто пробовал новую прошивку
EM12GPAR01A21M4G_01.009.01.009

Попробовал прошивку EM12GPAR01A21M4G_01.009.01.009, пока полёт нормальный

Не долго счастье длилось, через сутки выдал TIMEOUT и перестал отвечать

Добрый день. Проблемы заставили меня сюда прийти. Я только зарегистрировался, и не знаю еще, как тут и что) У меня EM12-G, такой же баг. Я игрался с прошивками, в итоге последний раз прошил EM12GPAR01A21M4G и модем мой окирпичился) Мигает только светодиод и неопознается ни в роутере ни в Windows(( Windows не видит устройство, как будно вставляешь кусок бумаги в USB. Что можно сделать?

Under the condition that the module is normally powered on and started and the USB hardware data cable is normal, if the USB port of EM12-G is not enumerated again in Windows device Manager, then the module has a high probability of damage and cannot be recovered. If the module can be enumerated USB port or USB 9008 port, you can try to re-burn the original firmware. But it may not be effective, because the module may have been damaged at this time. Hope it will help you, thank you.

Thanks for the answer. The module is not in the Windows Device Manager ((. Can EVB Kits help me? Can I somehow reset the module in hardware? Close some contacts, etc.?

Hardware reset can choose to power off and restart, but this way is estimated to be difficult to solve the current module brick problem, the module brick problem if there is a USB port can be upgraded and saved, but if there is a complete crash or even no USB port, it is likely that the internal flash module has been damaged and cannot work normally, this is unable to recover. You can also consult whether you can repair through your purchase channel to solve the problem. I hope it will be helpful to you. Thank you.

Thank you. Could the module be damaged during the firmware?