[General Questions and Answers] juyer:
probably the problem started here, the aero2 26017 network which does not work, which needs dataRoaming:

01-26 10:09:19.689 689 2488 D GSM : [GDCT][simId1]dataRoaming = true /* that's ok, aero2 needs roaming*/

01-26 10:09:19.691 689 2488 D GSM : [GDCT][simId1]createAllApnList: selection=numeric = '26017' and carrier_enabled = 1

01-26 10:09:19.691 689 1521 D GSM : [SIMRecords] getIMSI: 260171100079293

01-26 10:09:19.696 689 2488 D GSM : [SIMRecords] getSpNameInEfSpn(): null

01-26 10:09:19.696 689 2488 D GSM : [GDCT][simId1]createApnList spnString=null

01-26 10:09:19.696 689 2488 D GSM : [SIMRecords] getIMSI: 260171100079293

01-26 10:09:19.696 689 2488 D GSM : [SIMRecords] isOperatorMvnoForImsi(): null

01-26 10:09:19.696 689 2488 D GSM : [SIMRecords] getFirstFullNameInEfPnn(): first fullname: Aero2

01-26 10:09:19.696 689 2488 D GSM : [SIMRecords] isOperatorMvnoForEfPnn(): mccmnc = 26017, pnn = Aero2

01-26 10:09:19.697 689 2488 D GSM : [GDCT][simId1]createApnList: X result=[[ApnSettingV2] darmowy, 1390, 26017, darmowy, , , , , , -1, default, IP, IP, true, 0]

01-26 10:09:19.703 689 2488 D GSM : [GDCT][simId1]getPreferredApn: canSetPreferApn= true,count 1

01-26 10:09:19.704 689 2488 D GSM : [GDCT][simId1]getPreferredApn: X not found

01-26 10:09:19.704 689 2488 D GSM : [GDCT][simId1]createAllApnList: mPreferredApn_XXX=null

01-26 10:09:19.704 689 2488 D GSM : [SIMRecords] getIMSI: 260171100079293

01-26 10:09:19.704 689 2488 D GSM : [GDCT][simId1]createAllApnList: mPreferredApn=null

and here the "PlusGSM" 26001 network which works

01-26 10:14:51.058 660 3005 D GSM : [GDCT][simId1]dataRoaming = false /* that's ok, plus doesn't need roaming*/

01-26 10:14:51.060 660 3005 D GSM : [GDCT][simId1]createAllApnList: selection=numeric = '26001' and carrier_enabled = 1

01-26 10:14:51.066 660 3005 D GSM : [SIMRecords] getSpNameInEfSpn(): null

01-26 10:14:51.066 660 3005 D GSM : [GDCT][simId1]createApnList spnString=null

01-26 10:14:51.066 660 3005 D GSM : [SIMRecords] getIMSI: 260019807816936

01-26 10:14:51.067 660 3005 D GSM : [SIMRecords] isOperatorMvnoForImsi(): null

01-26 10:14:51.067 660 3005 D GSM : [SIMRecords] getFirstFullNameInEfPnn(): empty

01-26 10:14:51.067 660 3005 D GSM : [SIMRecords] isOperatorMvnoForEfPnn(): mccmnc = 26001, pnn = null

01-26 10:14:51.072 660 3005 D GSM : [GDCT][simId1]createApnList: X result=[[ApnSettingV2] GaduAIR, 388, 26001, internet.gadu-gadu.pl, , , , , , -1, default | supl, IP, IP, true, 0, [ApnSettingV2] PlusGSM, 389, 26001, internet, , , , , , -1, default | supl, IP, IP, true, 0, [ApnSettingV2] FM Group Mobile MMS, 390, 26001, mms.fmgmobile.pl, , mms.fmgmobile.pl:8002/, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] GaduAIR MMS, 391, 26001, mms.gadu-gadu.pl, , mms.gadu-gadu.pl:8002/, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] mBank mobile MMS, 392, 26001, mms.mobile.pl, , mms.mobile.pl:8080, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] Carrefour Mova MMS, 393, 26001, mms.mova.pl, , mms.mova.pl:8002/, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] Plus MMS, 394, 26001, mms.plusgsm.pl, , mms.plusgsm.pl:8002, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] PlusGSM MMS, 395, 26001, mms, , mms.plusgsm.pl:8002, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] FM Group Mobile, 396, 26001, fmgmobie.pl , , , , , -1, default | supl, IP, IP, true, 0, [ApnSettingV2] mBank mobile, 397, 26001, , , , , , , -1, default | supl, IP, IP, true, 0, [ApnSettingV2] mBank mobile MMS, 398, 26001, mms.mobile.pl, , mms.mobile.pl:8002, 212.2.96.16, 8080, , -1, mms, IP, IP, true, 0, [ApnSettingV2] Carrefour Mova, 399, 26001, , , , , , , -1, default | supl, IP, IP, true, 0]

01-26 10:14:51.076 660 3005 D GSM : [GDCT][simId1]getPreferredApn: canSetPreferApn= true,count 1

01-26 10:14:51.076 660 3005 D GSM : optr

01-26 10:14:51.076 660 3005 D GSM : canHandleType(): entry in types=default, reqType=default

01-26 10:14:51.076 660 3005 D GSM : [GDCT][simId1]getPreferredApn: X found apnSetting[ApnSettingV2] PlusGSM, 389, 26001, internet, , , , , , -1, default | supl, IP, IP, true, 0

01-26 10:14:51.077 660 3005 D GSM : [GDCT][simId1]createAllApnList: mPreferredApn_XXX=[ApnSettingV2] PlusGSM, 389, 26001, internet, , , , , , -1, default | supl, IP, IP, true, 0

01-26 10:14:51.077 660 3005 D GSM : [GDCT][simId1]createAllApnList: mPreferredApn=[ApnSettingV2] PlusGSM, 389, 26001, internet, , , , , , -1, default | supl, IP, IP, true, 0

but why the f...ing aero2 cannot connect, when it works ok on and old huawei .... :( who knows... RIL, ROM, or what ?