--- zzzz-none-000/linux-4.4.60/drivers/net/usb/cdc_ether.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/drivers/net/usb/cdc_ether.c	2021-02-04 17:41:59.000000000 +0000
@@ -218,7 +218,12 @@
 			dev_dbg(&intf->dev,
 				"ACM capabilities %02x, not really RNDIS?\n",
 				header.usb_cdc_acm_descriptor->bmCapabilities);
-			goto bad_desc;
+
+/* == 20171008 AVM/VGJ - CHANGESET: Fix for buggy ZTE rndis modems, ignore buggy descriptor */
+#if 0
+ 					goto bad_desc;
+#endif
+
 	}
 
 	if (header.usb_cdc_ether_desc) {