How to connect Huawei EC176 3G modem to Lenovo A3000-H tablet?

Question

Mobile devices

Tablet: Lenovo A3000-H
Modem: Huawei EC176
I'm trying to raise a modem connection on a tablet. I found a PPP widget, which initially complained about the lack of option.ko. Now I'm trying to slip the drivers from this site , but all the ones I've tried, of course, do not work (but there is no one specifically for my tablet). Here is the log of the PPP widget itself:

PPP Widget version 1.3.3
USB_ModeSwitch log from Mon Jan 13 22:32:31 EET 2014

Raw args from udev: 1-1/1-1:1.0

Using top device dir /sys/bus/usb/devices/1-1
----------------
USB values from sysfs:
manufacturer HUAÿWEI TECHNOLOGIES
product HUAWEI Mobile
serial ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
----------------
bNumConfigurations is 1 - don't check for active configuration
SCSI attributes not needed, moving on
checking config: /data/data/de.draisberghof.pppwidget/app_tmp/12d1.1505
! matched. Reading config data
devList 1: 
config: TargetVendor set to 12d1
config: TargetProductList set to 140b,1506,150f,150a
Driver module is "option", ID path is /sys/bus/usb-serial/drivers/option1

Command to be run:
usb_modeswitch -I -W -D -s 20 -u -1 -b 1 -g 5 -v 12d1 -p 1505 -f $cB

Verbose debug output of usb_modeswitch and libusb follows
(Note that some USB errors are to be expected in the process)
--------------------------------

Reading long config from command line

* usb_modeswitch: handle USB devices with multiple modes
* Version 1.2.7 (C) Josua Dietze 2012
* Based on libusb0 (0.1.12 and above)

! PLEASE REPORT NEW CONFIGURATIONS !

DefaultVendor= 0x12d1
DefaultProduct= 0x1505
TargetVendor= 0x12d1
TargetProduct= not set
TargetClass= not set
TargetProductList="140b,1506,150f,150a"

DetachStorageOnly=0
HuaweiMode=0
SierraMode=0
SonyMode=0
QisdaMode=0
QuantaMode=0
GCTMode=0
KobilMode=0
SequansMode=0
MobileActionMode=0
CiscoMode=0
BlackberryMode=0
PantechMode=0
MessageEndpoint= not set
MessageContent="55534243123456780000000000000011062000000100000000000000000000"
NeedResponse=0
ResponseEndpoint= not set

InquireDevice disabled
Success check enabled, max. wait time 20 seconds
System integration mode enabled

Use given bus/device number: 001/005 ...
Looking for default devices ...
bus/device number matched
searching devices, found USB ID 12d1:1505
found matching vendor ID
found matching product ID
adding device
Found device in default mode, class or configuration (1)
Skipping the check for the current configuration
Using interface number 0
Using endpoints 0x08 (out) and 0x87 (in)

USB description data (for identification)
-------------------------
Manufacturer: HUA WEI TECHNOLOGIES
Product: HUAWEI Mobile
Serial No.: 
-------------------------
Looking for active driver ...
OK, driver found; name unknown, limitation of libusb1
OK, driver "unkown" detached
Setting up communication with interface 0
Using endpoint 0x08 for message sending ...
Trying to send message 1 to endpoint 0x08 ...
OK, message successfully sent
Resetting response endpoint 0x87
Could not reset endpoint (probably harmless): -34
Resetting message endpoint 0x08
Could not reset endpoint (probably harmless): -34
Device is gone, skipping any further commands
Bus/dev search active, referring success check to wrapper. Bye.

ok:busdev
--------------------------------
(end of usb_modeswitch output)

Checking success of mode switch for max. 20 seconds ...
Waiting for device file system (1 sec.) ...
Waiting for device file system (2 sec.) ...
Waiting for device file system (3 sec.) ...
Reading attributes ...
Mode switch has completed
Mode switching was successful, found 12d1:140c (HUAÿWEI TECHNOLOGIES: HUAWEI Mobile)
Device class of first interface is ff
Now checking for bound driver ...
No driver has bound to interface 0 yet
Module loader is /system/bin/insmod
Trying to find and install main driver module "option"

Checking for active driver path: /sys/bus/usb-serial/drivers/option1

Driver not active, try to find module "option"
Loading support module /sdcard/pppwidget/lib/ppp_async.ko
Error: insmod: init_module '/sdcard/pppwidget/lib/ppp_async.ko' failed (Exec format error)
Loading main driver module "/sdcard/pppwidget/lib/option.ko"
Error: insmod: init_module '/sdcard/pppwidget/lib/option.ko' failed (Exec format error)

Existing path found: 
No way to use driver "option"
- try falling back to "usbserial"
Module "usb_serial" not found, can't do more here
Driver binding did not work for this device

All done, exiting