I have a Raspberry Pi 3 with a USB Modem (Huawei 12d1:1446) E1750.
The modem keeps on resetting every 3-5 seconds as shown in the dmesg logs:
This happens over and over.
Code: Select all
[ +5.103849] usb 1-1.3: new high-speed USB device number 26 using dwc_otg [ +0.102347] usb 1-1.3: New USB device found, idVendor=12d1, idProduct=1446 [ +0.000025] usb 1-1.3: New USB device strings: Mfr=3, Product=2, SerialNumber=0 [ +0.000013] usb 1-1.3: Product: HUAWEI Mobile [ +0.000013] usb 1-1.3: Manufacturer: HUAWEI Technology [ +0.004346] usb-storage 1-1.3:1.0: USB Mass Storage device detected [ +0.000524] scsi host34: usb-storage 1-1.3:1.0 [ +0.001082] usb-storage 1-1.3:1.1: USB Mass Storage device detected [ +0.000309] scsi host35: usb-storage 1-1.3:1.1 [ +0.994053] scsi 35:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2 [ +0.001276] sd 35:0:0:0: Attached scsi generic sg0 type 0 [ +0.000501] scsi 34:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ +0.003325] sr 34:0:0:0: [sr0] scsi-1 drive [ +0.001347] sr 34:0:0:0: Attached scsi CD-ROM sr0 [ +0.002502] sd 35:0:0:0: [sda] Attached SCSI removable disk [ +0.000759] sr 34:0:0:0: Attached scsi generic sg1 type 5 [ +0.696730] usb 1-1.3: USB disconnect, device number 26
First I though it to be a PSU issue, but I am using the official 2.5A pi supply and have tried another official PSU, same effect.
I also tried usb_max_current config. but I understand that it has no effect on the Pi3.
Any idea how I can get this modem to work? or has someone used this modem successfully?