AT&T Mifi 2372 unlock [Archive]

jgarcia1f

2011-06-04, 05:36 AM

Hi, I'm new to the forum. Please bear with me. I read through a couple of other threads, but they didn't really address the question I've got. At least as far as I can tell.

I just got a secondhand AT&T-branded Mifi 2372 a couple of days ago. I'm trying to get it to work with a normal sim card from an AT&T phone account. When I try to use wap.cingular for the apn, the software tells me that the apn is not allowed.

I know that AT&T has sims that only work with 4G apns, sims for data cards, and sims for the rest of their phones. I got the sim from a regular phone, and I know it uses wap.cingular in three different phones I've owned over the past few years I've had it (grandfathered in to a true no-limit data plan ;-).

What can I do to remedy this and use it with wap.cingular? Do I still need to unlock it, or is there a simpler fix? Will using the stock, unbranded firmware remove this block? If so, where can I find it?

I'm fairly tech-savvy, but I've never had to unlock a data card before. Thanks for any help and advice!

Vincentas

2011-06-04, 07:58 PM

If sim from same provider in same provider modem is not working, then unlock with dc-unlocker will not help you.
Unlock allows to use any provider sim with modem. But in your case there should be limitation from provider and dc-unlocker can not help here.

flymooney

2011-06-11, 09:53 AM

Garcia,
in profiles, for apn, try using "broadband" without authentication. That's the way mine is set up.

jgarcia1f

2011-06-11, 01:56 PM

Garcia,
in profiles, for apn, try using "broadband" without authentication. That's the way mine is set up.

Do you have a "data plan" sim installed or a sim pulled from a phone? Also, is yours over 6-8 months old? I believe they started blocking phone sims in the latest firmware from AT&T.

In any case, broadband does not work. That's the apn it came set up with. It wasn't working, and my research concluded it was because AT&T began blocking the apn if used with a phone sim. I've not been able to find out if changing the firmware and/or unlocking the device will allow me to enter the wap.cingular apn.

I'm trying to leave the mifi with someone who has no other possible internet access, but I'm leaving the country in this time tomorrow. Any help would be greatly appreciated. :-D

flymooney

2011-06-12, 12:01 AM

My ATT phone sim card does not work in the Mifi. I bought a 3 Gigs Data Plan with the Mifi last month. The sim cards are not interchangeable. Hope this help.

Do you have a "data plan" sim installed or a sim pulled from a phone? Also, is yours over 6-8 months old? I believe they started blocking phone sims in the latest firmware from AT&T.

In any case, broadband does not work. That's the apn it came set up with. It wasn't working, and my research concluded it was because AT&T began blocking the apn if used with a phone sim. I've not been able to find out if changing the firmware and/or unlocking the device will allow me to enter the wap.cingular apn.

I'm trying to leave the mifi with someone who has no other possible internet access, but I'm leaving the country in this time tomorrow. Any help would be greatly appreciated. :-D

jgarcia1f

2011-06-13, 05:13 AM

Thank you, flymooney. After flashing with the generic firmware, I was able to add the wap.cingular apn to the list of profiles. The phone sim connected perfectly once I changed to that apn. No need to unlock the device, just flash to the generic firmware.

flymooney

2011-06-13, 09:43 AM

Very good! It's good to know that when you flash the generic fw directly over the ATT fw, there is no need to unlock. Also good to know you can use a wap.cellular voice/data plan with the Mifi.

Thank you, flymooney. After flashing with the generic firmware, I was able to add the wap.cingular apn to the list of profiles. The phone sim connected perfectly once I changed to that apn. No need to unlock the device, just flash to the generic firmware.

techmate99

2011-06-16, 09:23 PM

Hello, all I am in the same boat. need to use wap.cingular
please share the generic file to flash.

I PM flymooney as well

thanks

flymooney

2011-06-17, 12:02 AM

Please note that dc-unlocker now support unlocking the ATT firmware, which has a lot more features than the generic.

2011-06-06
DC-unlocker client software V1.00.0659
Added:Phones:Huawei U8220,U8230,Modems:Huawei:E398,E367,E372,E1732,
Embedded modules:Huawei:EM775,EM820U,Routers:Vodafone R201,Novatel MiFi 2372 USA AT&T version 7.11.02.01-10,Customised modems:Huawei E153 11.609.18.00.297 Dialog Sri Lanka,Huawei E173 11.126.15.00.634 MTS Uzbekistan,Huawei E173 11.126.15.00.592 Metfone Cambodia,ZTE MF100 BD_BLNUAP671A1V1.0.0B03 Beeline,ZTE MF180 BD_BLNMF180V1.0.0B04 Beeline.

flymooney

transgenesis

2011-06-22, 02:54 PM

flymooney

2011-06-22, 04:50 PM

I just changed my firmware from ATT 7.11 to generic 5.26.2. After installing drivers everything has been working like a charm, getting 3 Mbps. However I have been hooked up by USB cable using mobilink, and AT&T sent me a text message saying I need an appropriate plan for mifi devices, and I may get cut off soon.

My mifi is still locked. Is there something I can do so they can't see I'm using a mifi device, or get around this? The SIM inside is a voice/data sim, with the data plan being about 1.5 years old.

1- There should be no need to use USB and Mobilink. The wifi should be working and the MiFi page should come up at 192.168.1.1 (not att.mifi).
2- Maybe the data you downloaded with the mifi exceeded what is normally expected with a voice/data sim card, and this is why you got the message from ATT? I have a 3G plan @ $35/month.
3- Someone reported there is no need to unlock when using the generic f/w. This was not my experience, although my device was already unlocked before flashing the f/w.

flymooney

2011-06-22, 04:52 PM

3- Someone reported there is no need to unlock when using the generic f/w. This was not my experience, although my device was already unlocked before flashing the f/w.

It's jgarcia1f earlier in this thread.

lingnk

2011-06-23, 03:47 AM

Could someone let me know where can I get it please. Thanks

DOCTORCMD

2011-09-07, 08:00 PM

Hey everyone, I'd just like to say that I followed the others in this thread and did this same setup (flashing the Novatel generic 5.26.2 firmware over the AT&T MiFi 2372 firmware I got) and while it does indeed work, and work nicely, putting a voice/data SIM card in the device (using the wap.cingular APN and PAP authentication) brought me a warning text message less than 24 hours later warning me: "An eligible data plan is required for Laptop, Tablet or MiFi devices. Call 611 as soon as possible for details and to avoid service interruption"

No idea if this is a bluff, or if they actually have some way of finding that the data is being sent over a MiFi device instead of through a cell phone, but I just wanted to let you all know that yes, it does work, but yes, they are aware of the workaround's existence and are quick on letting you know of that fact.

Also, to linkgnk, you can request the firmware from Multiplex Systems on their Facebook or Twitter, or by filling out a contact form on their website. There is no simple download link anywhere online that I've found, but you ask them for the firmware and they'll put it on Mediafire for you to grab (68MB download).

Hope that helped someone!

transgenesis

2011-09-07, 10:00 PM

ATT also notified me within a day twice now for using a voice/data sim. I just flashed the firmware to generic, I didn't unlock it with DC unlocker. Does unlocking with dc unlocker it prevent them from finding out you've put a voice/data sim inside?

DOCTORCMD

2011-09-08, 02:35 AM

As far as I can tell, with my limited understanding of the DC Unlocker client and its features, it seems that unlocking it will not assist in keeping AT&T/other providers from suspecting you of SIM-swapping. It appears the DC Unlocker is simply to make a proprietary device work with other service providers (i.e. make an AT&T MiFi 2372 work with a SIM chip from the Rogers company in Canada).

I do not know yet how or even if they really know that a person is using a swapped SIM chip in a different device. If I find something useful, information-wise, I'll post it here or in a new thread. Until then, please keep coming back here and let us all know how your service goes, in case it gives the rest of us an insight into continuing our regular usage of the MiFi devices.

DOCTORCMD

2011-09-09, 07:17 PM

It seems I can't edit my old post, so forgive the double-post.

Two days into using my great new setup and the company shut off the data service. Customer service (over the phone) couldn't see any issues on my account, though I received the following text when the data service was interrupted: "Your data service has been restricted due to SIM swapping with a Data Connect device. Please call ### to discuss available plan options."

Currently in the process of figuring it all out. So! Verdict on this method: It works, but only for a day or two. I have yet to have found how they determine if a Data Connect device uses the SIM, since tethering the week before produced no warning texts or anything, still using a substantial amount of data over a regular PC web browser.

One more thing: I use Peerblock and pay close attention to what is going on with my Internet connectivity. Again, hoping this information is of use (or warning?) to those who may be interested in trying this setup.

butterfly24

2011-09-13, 09:10 PM

Gintas

2011-09-14, 08:10 AM

Hello, I am new and i am not sure if i am in the right forum but i would like to know if anyone can help me. I just brought an unlocked at&t mifi 2372 (well it is supposed to be unlocked). I am not in the states so i put in a sim card from the country that i am in which uses EDGE and the LED light flashes blue and green.
Can anyone tell me if that means my mifi is not unlocked?
If my mifi is locked can you tell me how to unlock it?
I really need for this to work so i can stay in communication with my children.

Hello. You should try to connect to internet and see if it is working. If it is working with other providers SIM card - means it is unlocked.
If it is not working with other providers SIM card - means it is locked.
You can unlock MiFi 2372 using DC-Unlocker. Download it here: http://www.dc-unlocker.com/downloads/get/FoJh1tGt

butterfly24

2011-09-14, 10:39 AM

Hello. You should try to connect to internet and see if it is working. If it is working with other providers SIM card - means it is unlocked.
If it is not working with other providers SIM card - means it is locked.
You can unlock MiFi 2372 using DC-Unlocker. Download it here: http://www.dc-unlocker.com/downloads/get/FoJh1tGt

Good morning, I have tried to connect. My ipad picks up the wifi from the device but when I try to use the internet it says it can't connect because it is not connect to the internet. It looks like it tries for 2 seconds but that messages pops up about not being connected to the internet.
Is it normal for a locked mifi to look like it is working cause it is picking up the signal of my sim card but just not connect because it is still locked? (Hope you understand my question)

Gintas

2011-09-14, 10:51 AM

Good morning, I have tried to connect. My ipad picks up the wifi from the device but when I try to use the internet it says it can't connect because it is not connect to the internet. It looks like it tries for 2 seconds but that messages pops up about not being connected to the internet.
Is it normal for a locked mifi to look like it is working cause it is picking up the signal of my sim card but just not connect because it is still locked? (Hope you understand my question)

Maybe you did not set the correct providers network connection setings? (APN, username, password, etc.).