Hi Homam,

 > ofonod[1407]: Modem: > AT+CGDATA="PPP",1\r
> ofonod[1407]: Modem: < \r\n+CME ERROR: 50\r\n
> ofonod[1407]:
> /ofono/1.14-r0/ofono-1.14/drivers/atmodem/gprs-context.c:at_cgdata_cb() ok 0
> ofonod[1407]: Unable to enter data state
> ofonod[1407]:
> /ofono/1.14-r0/ofono-1.14/src/gprs.c:pri_activate_callback() 0x556ecea8
> ofonod[1407]:
> /ofono/1.14-r0/ofono-1.14/src/gprs.c:pri_activate_callback() Activating
> context failed with error: Incorrect parameters

This was already discussed in the thread "Unable to connect Huawei 
HiLink E303" earlier this month.

Regards,
-Denis