I used to check the balance on my prepaid sim by issuing the *100# USSD.
However, as for a tablet which does not support voice connection there is no dialer app installed
which could be used to send such USSD.
On the another hand it is possible to enter service mode by telling the device a special (really long USSD)
in a special place.
I wonder if it was possible to send the *100# ussd to operator in same way as the service mode is invoked.
Any idea?
Sony Xperia Tablet Z LTE.
Related
Hi all
I have an eee Pad 3G (TF101G) and a prepaid SIM. One option to top-up the SIM is by dialing a "special" number (#100*1*4#). This connects to a 3rd party that automatically bills my PayPal and debit my account. It is a similar operation as querying a device's IMEI.
The problem is: the TF101G does not have a dialer app. There is no way I can query the IMEI or top-up my prepaid with this technique.
Can anybody suggest a dialer app, or similar?
Note: I know how to get the IMEI, I'm just using it as an example. And I also don't care for other methods of toping up my prepaid.
Thanks!
See if you can download dialer one from the market that might work, although not sure how you would dial out. You could try grove ip and google talk not sure if that would works that would would give you access to dialing out. Not sure though if you could fill the prepaid sim that way, it would be worth a try though.
I don't think you can since the TF 3G will only have internet functions and no phone capabilities.
[Q] Why SIM country & operator codes wrong and how were additional APN's installed?
I’m in Ireland, The offices of the Garda Ombudsman (GSOC) was in the papers earlier this year because it was suspected they were being bugged. Also apparently the Gardai have been recording calls to and from police stations for years without the public (or lawyers) being informed. So recording of telephone calls/interception is topical here is topical now.
Wearing my tin-hat, I did a full wipe and installed a Cyanogen-based ROM on my rooted Samsung Galaxy S (i9000). I manually input the correct APN settings for my network operator (48Months/O2-IRL) and I installed Orbot
I never got a network configuration SMS/MMS from the network operator. But somehow, I found also installed (not immediately) were the following APNs:
Eastlink Internet: wisp.mobi.eastlink.ca
Proximus Internet: internet.proximus.be
Eastlink MMS: mms.mobi.eastlink.ca
Proximus MMS: event.proximus.be
It’s a new SIM from when I changed network operator a few months back. The above four APNs were also installed when it came and I queried this to 48 Months with no response. I never saw these APN’s with my previous network operator.
I downloaded a SIM reader app and got the following results:
SIM State - network locked
SIM country code - be
SIM Operator code 20601
SIM IMSI 20601 8816 582453
Phone type - gsm
Network country ID - ie
Net Oper code - 27202
Net Op name - O2 Irl
Net type - HSDPA
Voice roaming - on
Data roaming - off (even though in my phone settings it is showing as on)
So the SIM country code and SIM Operator code are wrong – being for an ISP in Belgium, and also there are those additional APNs which I never installed.
To my simple mind, APN settings are sent by network operators for auto configuration, so these APN’s came from the network operator. However, I have again queried with them and now they say “The tech team have replied this morning to confirm that there is nothing from the network or anything linked with your SIM that would cause your phone to change the settings on your phone.
Due to that they have had no option but to advise you that the phone must be the reason for this.”
But to my knowledge, there are no preinstalled APNs on the ROM (cm-MacKAY ROM Android 4.4.2), and also a 3rd party app can not edit the SIM country code /SIM operator code.
I would love to get an opinion from a developer more familiar with SIMs/APN’s please
Nearly SOLVED
OK, So tin hat is back in its box now...I emailed Eastlink in Canada and they seem to have solved it - very impressive especially when compared with the responses from my network!
"I have had our network team review your question and they have determined there is no security issue and no data traffic that would affect you.
Google has been changing the method that they use for APNs in AOSP. As part of that change APN's are preloaded in Kit Kat. Eastlink's APNs are correctly present in Kit Kat for Home Network Identity 20601.
If you require further assistance with your questions it is recommended the you contact Android Open Source Project or the Cyanogenmod on line.
Thank You for contacting Eastlink Wireless Customer care. "
Hi there,
Just noticed I can't active or deactive all kinds of call forwarding since upgreaded to mashmallow.
Xperia Z5 Dual / E6683
I get "Call settings error - Network or SIM card error." everytime when I access Settings - Call - <Your Operator> - Call forwarding
I get "Call forwarding - Connection problem or invalid MMI code." when I dial *#21# and all 4 kinds of MMI code.
Suspicions & Recent activities:
1. upgraded to mashmallow
2. subscribed a new 4G LTE plan and changed to a NFC SIM.
I'd like to know is that an individual case or everyone get this problem caused by stock mashmallow.
Thanks
H.W.
Hi guys,
I recently purchased an unlocked Galaxy S6 (SM-G920R6) in the US and brought it with me to Ecuador as a gift for my dad. SIM card is "working" I can make phone calls and send SMS but when I try to call customer service or use the carrier services (USSD), I get connected to the Verizon Wireless Global Roaming hotline. Is there a way I can fix this?
I have changed the configuration to LTE/GSM (instead of global), selected the network manually, turned off roaming, etc...
Any suggestions?
Tried to contact Verizon but they claim it's not up to them.
Any input will be most welcomed!.
Thank you
Why not just add the number of the current network in the contacts? Saves you trouble of configuring. Just tell your dad to call that number instead.
The free calling and texting app Textnow which formerly only worked on Wifi or with a paid subscription is now offering Free cellular service through the Sprint network. You just pay once for a $9.99 SIM activation kit and never need to pay a monthly fee or anything again. The Free part is only Voice and text. Their voice and texting does use mobile data but mobile data can't be used for anything else like surfing the Internet unless you pay extra. It does of course have ads to pay for this service but I haven't found them any problem. You have your own phone number and it automatically will switch between available Wifi and cellular for calls and texting. Great idea in my opinion for an extra phone number or backup phone or even a primary phone if you are in a good Sprint network area. Your phone must be compatible with Sprint's network (CDMA) or you can buy refurbished phones from Textnow that are all set to go.
Textnow now has a GSM SIM that works through T-Mobile. It took a bit of digging to find info needed to make the SIM work but so far I can only make outgoing calls and texts when on cellular (VoLTE) with
Wifi turned OFF. I can't receive calls or texts unless Wifi is ON. Is anyone else trying their new GSM SIM and had this problem? This is free cellular! You just have to put up with some ads. Textnow states you can make and receive calls on cellular but so far can't get the incoming working.
If you have trouble with this new GSM SIM even connecting here is the solution I found to at least make outgoing calls work: Go into settings > Wifi and Internet > SIM and network settings > SIM (T-Mobile) > Access Point Names > Add APN. Getting there may vary some by phone and OS version but you need to add the APN - Name : TextNow APN: textnow.static - then just save it and after saving choose it as the APN in the little circle. Turn on Airplane mode for about 10 seconds and then turn back off and you should see VoLTE and be able to make calls. If you can receive calls and text also please post here with anything you did to accomplish that.