Develop Bugs

question for at&t users

when i got my contract from at&t i got the lg neon with the 10 or 15 dollar data plan for regular phones, not the smartphone data plan. and when i switched back to my dash i noticed all my features that required data (web browser, weather tab, email) all work fine and i dont get charged extra for it.
so i was wondering if it would work with the data sharing too without me getting charged extra?
probably a dumb question but im new to at&t

whats great about at&t is that they have no current way to detect what type of device your using unless it is branded by them, this is cause att can only decode their own imei numbers, it's just like asking them to unlock a tmobile phone.. they can't do it cause the imei numbers are more or less directly related unlocking the device and this makes it confidential or proprietary infomation of the company that licenced the device for sale. they could however just deny the use of data unless you pay for a generic data plan witch is normally about $30 or so witch is what tmobile does if they can't verify what device you have but att has yet to impliment this.
hope this was of some help
ex-tmobile employee

that was very helpful thanks

Galaxy Tab Voice Activation - Carrier Guide

Some awesome folks have posted tutorials for replacing the ROM on the tab to enable voice calling. Carrier info on actually using this "new" feature is a little sketchy, though. Will it work on CDMA? Can you still get the discounted price? All sorts of non-technical questions related to carrier are posted but generally buried so deep in threads that the info is hard to find and often there's conflicting info on carriers in different threads. So I am starting this thread in an attempt to collect data on carrier-specific info related to voice calling on the Tab enabled by custom ROMs found here on XDA. Here are two threads to choose from for updating the ROM:
http://forum.xda-developers.com/showthread.php?t=929479
http://forum.xda-developers.com/showthread.php?t=847273
So please don't talk about ROMs here - this is about carriers, calling plans, etc. At first this post will have lots of questions, but as they are answered in the thread I will update the original post with the info. Don't follow the data here until the thread has had some responses! So here goes...
Disclaimer: I haven't done this yet and haven't verified any of this info.
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Currently the "upgrade" does not work with CDMA because it requires tricking the carrier into not knowing you have a voice-enabled Tab by using a SIM card from another phone. No carrier will sell you a voice plan for the Tab. So the process goes like this:
1. Purchase a Tab, but do NOT activate it! The activation would be data-only and that's no good. The SIM card it comes with will be useless.
2. Activate an old phone or used phone you bought on ebay on a GSM carrier. Currently AT&T seems to produce the best results, but please post carrier details in the thread and I'll compile them here. Activate the phone with the voice and data plans of your choice.
3. Follow instructions from one of the links above to upgrade your ROM.
4. Install different modem software (also instructions in above links).
5. Take the SIM card out of the activated phone and put it in the Tab.
6. That's it! Now you can make calls on your Tab! (is that really it or is there more to it?)
PROS:
Voice on the Tab!
By activating an old/used phone you aren't stuck in a contract.
Cons:
You don't get the discount that comes with activation since activating the data plan without voice does you no good.
At some point the carrier could get wise and cut us off, but this hasn't happened yet.
QUESTIONS:
1. What have I missed (likely a lot)?
2. What is WRONG and needs to be corrected?
3. What carrier-specific details are different (like AT&T vs T-Mobile)?
4. Will CDMA always be out in the cold due to no SIM card or is that being worked on?
5. Which GSM carrier has the best plan for the voice Tab (that it thinks is a smartphone)?

CDMA phones do not use SIM cards, so it's not possible to do the same kind of swapping you can do with them. CDMA phones are provisioned by the ESN/MEID linked to an entry in the carrier's database. So unless you hack their corporate data or have a employee contact who will change something in the database, the entry is already linked to the device type. For example, if you have a feature phone and buy an Android phone on eBay, when you go to activate it, it knows it's an Android phone and will prompt you to call a service representative to change your plan, because that phone requires a data plan. It's also why you can't just take a VZW phone over to Sprint. I've actually heard of people getting clear ESN phones added to the other carrier, but it was always by having a friend who could do it from the inside. I'm not saying there aren't alternatives programs or ways to make voice calls on the CDMA Tabs, but it'll never be possible to do anything remotely like the SIM switching solution.

This is only for the GSM Tabs (at&t Tmobile) usa and yes u need a modem switch to hav 3G and voice but they will not work together u hav to switch from 3g to voice please becareful and read everything, the only person who will be responsable for ur tablet being bricked is you

So far I havent seen anyone that has voice and data with a normal phone sim card on T-Mobile Tab due to the fact that they have the IMEI block set up but if your going to do it you have to but one from AT&T will work with a T-Mobile sim and vice versa due to the system not really caring what the device is for the most part (at least on T-Mobile). Removing the IMEI block is illegal so your best bet is if you go with the opposite carrier from what your already using to avoid contract extentions or if you have a friend with other carrier get them to buy it at a discount while you do the same at your carrier. Then switch the two and use the modem switcher andyou should be able to do all you want.

countkakula said:
So far I havent seen anyone that has voice and data with a normal phone sim card on T-Mobile Tab due to the fact that they have the IMEI block set up but if your going to do it you have to but one from AT&T will work with a T-Mobile sim and vice versa due to the system not really caring what the device is for the most part (at least on T-Mobile). Removing the IMEI block is illegal so your best bet is if you go with the opposite carrier from what your already using to avoid contract extentions or if you have a friend with other carrier get them to buy it at a discount while you do the same at your carrier. Then switch the two and use the modem switcher andyou should be able to do all you want.
Click to expand...
Click to collapse
idk , i have tmobile and i had to use my tab as a phone , waiting for a replacement vibrant, all i did was stick my vibrant sim, modem switcher. and poof i have tabphone

Are you saying you changed out the modem software without having to flash the ROM and it worked?

b0ricuaguerrero said:
idk , i have tmobile and i had to use my tab as a phone , waiting for a replacement vibrant, all i did was stick my vibrant sim, modem switcher. and poof i have tabphone
Click to expand...
Click to collapse
So you have internet and phone without using wifi cause i get wifi easy but get redirected when i use 2G or modem switch to 3G

[Q] DINC as "tablet" on Verizon

I have an off contract DINC. I have been using it for quite some time as a WiFi only tablet. It works so well that I have become increasingly dependent on it and Google Voice for text messages.
My employer provides me with a very basic phone for voice so I really do not need another phone. What I do need is the availability to send receive text messages via Google Voice when away from WiFi.
Verizon has a $10.00 a month "tablet" plan that would fill all my needs, but they refuse to connect my device as they insist it is a phone.
Is there some method where I can change the IMEI and ESN to fool Verizon into thinking that the DINC is some generic tablet with a CDMA radio? Is there perhaps a ROM that truly turns off the phone feature and converts the DINC to a tablet?
One other option would to be to get the DINC to spoof itself as a MiFi 2200 on Virgin Atlantic. Is this possible? I've considered buying a MiFi off the bay and using that route but the only device I want to support is the DINC and I really don't want to have to manage a 2nd battery and keep track of 2 devices.
Has anyone managed to connect a DINC as a "tablet" to any provider?

Working method for E4GT to straight talk.

Will the walmart CDMA activation kit work on the Sprint E4GT? I checked the website with the MEID and it says its compatible but I want to be certain and get some verification first. Or is there a way to flash it to straight talk that doesn't involve cloning? I would appreciate any information that will bring some clarity, I can't find anything specific enough to say either way.

prepay SIM in deactivated S6 Edge with T-Mobile

I have a Samsung Galaxy Edge 6 with T-Mobile from T-mobile, love the phone, but I lost my job and the bill got out of control so I have not paid in like 3 months I think now.
It was not too big of a deal since my main number is a Google Voice number and I use Google Hangouts to make phone calls and text messages by default.
Its perfect when I am at home on wi-fi but as soon as I leave and not within wi-fi of course I get no internet functionality.
For a while I saw the carrier logo at the top of my phone "T-Mobile" but now it just says "searching" where it used to say that in the upper part of the screen on every screen. (I may have switched a setting causing this or they may have blacklisted my phone I am not sure how to tell).
The phone is not carrier unlocked however if I was to go to Walmart or even a T-Mobile store, tell them I don't have the phone on me but I just want to purchase a pre-paid SIM, could I do that and would it work on my phone to get back on the T-mobile or other carriers network?
Since I use Google Hangouts for my texts and calls it is very important for me to have data. I am sure 5GB would be fine but I want to purchase the cheapest SIM which has any kind of data to see if it even works first. I do not care what number it gives me since I will not be using it for outgoing or incoming calls.
My concern is that if I go with T-Mobile pre-pay, when I put SIM in, it may reject it automatically because they may have sent some kind of SIM lock command since it is not showing carrier anymore OR they may look up my IMEI and see that I have an outstanding bill with them and not allow the SIM.
Any suggestions besides the obvious "pay your bill" would be greatly appreciated! When I can afford to pay the bill I will :cyclops:

Short answer, yes it will work.
Sent from my SM-G925T using Tapatalk

Ok great thank you! Will go in and get a T-mob SIM tomorrow. Or actually, does anyone have advice of where to get the cheapest SIM so I can try this to make sure it works first? I think for $30 you can get 5GB data and a little talk from T-Mob is there anything cheaper? I am super-broke right now lol. I just need the data no talk.

Actually it depends on if the phone was part of the bill. If it wasnt payed off and you didnt pay them it will get blacklisted and it wont work with any carrier in the us. But if the phone was paid outright then you should be fine.

See that is what I am talking about. The phone AND Galaxy Gear S with activated SIM both were not paid off and bill is at $600 and it used to say "T-mobile" for carrier on top of phone screen now it just says "Searching" thus I am pretty sure that is a sign of being blacklisted. Even if phone is blacklisted cant I do something to make it use a prepaid SIM? Can I spoof the IMEI? Is that how they blacklist it?

Alex9090 said:
Short answer, yes it will work.
Sent from my SM-G925T using Tapatalk
Click to expand...
Click to collapse
I got around to trying this and no, it did not work. In fact I went to one of those third party T-mobile places which is an authorized dealer but he was still cool to talk about it with and had access to the T-mobile database.
He asked for my phone, went to the dialer app on the phone, put in a code with the numeric keypad, and it pulled up two bar codes and numbers (I think the IMEI).
He then went on his computer and put in my IMEI or whatever number was there and sure enough it said it was blacklisted.
I had a feeling this was the case when my phone went from showing the carrier logo on the top of the screen they it said "searching" after about 3 months on non payment.
So when I tried to purchase a new prepaid SIM and put it in the phone and phone restarted, instead of saying "searching" it now says "no service".
There has to be a work around for this. Maybe changing the phones IMEI is the only way but if there are other alternatives I would like to know. I can program and have been writing code since I was 12 years old but not sure if I need special hardware to flash and internal EEPROM or something like that. Any hep is greatly appreciated!
I hear there are people that I can pay to do it but I enjoying learning things like this on my own so I would really like to do it myself if possible?

Changing the imei might be possible but for legal and policy reasons that can not be discussed here

I see tons of ways to do it with a Google search super easy. But it seems TWRP might do it or at least let me backup everything including the system partition so I dont lose anything and can always go back?
Where can I get and learn more about TWRP and must I be rooted?
Can we currently root Samsung GS6 with Android OS 5.1.1 ?