Ralink 7601 doesn't work (warning: unsupported EEPROM version 0d)

Hi all,

Currently, my Raspberry Pi 1B is connected with a LAN cable, but I’d like to be able to use a dongle (USB wifi adapter) too. It’s a Ralink 7601 or mt7601. The driver, mt7601u is supposed to be built-in as the Pi is running: OSMC 4.4.6-3. However, it doesn’t work.

I found this manual to compile a driver, but it doesn’t work with 4.4.6-3-osmc. Anyhow, since the mt7601u driver is built-in, I shouldn’t have to compile it, should I?

This is relevant output of dmesg:
[3.369441] usb 1-1.3: new full-speed USB device number 4 using dwc_otg
[3.529384] usb 1-1.3: new high-speed USB device number 5 using dwc_otg
[3.640146] usb 1-1.3: New USB device found, idVendor=148f, idProduct=7601
[3.640178] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[3.640193] usb 1-1.3: Product: 802.11 n WLAN
[3.640206] usb 1-1.3: Manufacturer: MediaTek
[3.640219] usb 1-1.3: SerialNumber: 1.0
[8.819769] usb 1-1.3: reset high-speed USB device number 5 using dwc_otg
[8.955946] mt7601u 1-1.3:1.0: ASIC revision: 76010001 MAC revision: 76010500
[9.076925] mt7601u 1-1.3:1.0: Warning: unsupported EEPROM version 0d
[9.076958] mt7601u 1-1.3:1.0: EEPROM ver:0d fae:00
[9.611885] usbcore: registered new interface driver mt7601u

If I type ifconfig, I only get eth0 and lo

How can I get my Raspberry Pi connected to the wifi (using this dongle)?

Thanks in advance.
Cor

In short: how do I use my USB wifi adapter?