GS2 Korean M250K model - Galaxy S II Q&A, Help & Troubleshooting

Hey guys,
I have searched throughout the forums but have not been able to find a solid answer. I just got a Korean variant of the SG2, model M250K. I reside in Canada and am on the Fido network which is the same as Rogers. Wondering if this is a software or hardware issue. I am on the stock Korean firmware. The phone is working except I cannot acquire 3G data. Is there anything I can do to let it acquire 3g speeds here, Fido uses the 850 frequency. As far as I have read the korean firmware does not use that frequency hence I am getting edge connections. Are all of the Samsung Galaxy S2 phones built the same ie, GSM phones all have the same abilities. Would flashing to another firmware allow me to connect to the 850 frequency. Basivcally is this a software issue or hardware issue. Thanks guys.

Related

[Q] I900 vs I9100T frequencies - changeable

I suspect someone has asked this before, but I can't see an answer...
Here in Israel, the S2 is marketed as two versions - the I9100 and the I9100T. From what people have been saying, it seems the former supports the 900/1900/2100 bands while the latter supports the 850/1900/2100 bands (there's also a difference in the SAR). However, all the specs I've seen for the device indicate it's supposed to be a quad-band device.
Is the difference in available frequencies something hardwired into the particular model? Or can I change it by changing the firmware?
Thx
I have an i9100t in australia which is 850mhz network telstra, however the 3g data has some problems on a 900mhz network. This phone maybe different even though the specification says dual 850/900hz be careful. I do not have a solution yet. Hopefully this can be fixed by firmware mod.

[Q] Korean version GII 250S for AT&T

Hi guys.
I didn't know where to post and I have few questions on my Galaxy SII I bought from Korea and brought to USA.
I have KT's 250S galaxy SII and I'm trying to use it for At&t. I tried to put my At&t sim card in and looks like it is getting some connection. I was able to make a call.
However, looks like it's not getting any 3G connections. I heard there is some modification on the network I need to change to get 3G. Could you please let me know what should I do?
Thank you,
Andy
yubbi84 said:
Hi guys.
I didn't know where to post and I have few questions on my Galaxy SII I bought from Korea and brought to USA.
I have KT's 250S galaxy SII and I'm trying to use it for At&t. I tried to put my At&t sim card in and looks like it is getting some connection. I was able to make a call.
However, looks like it's not getting any 3G connections. I heard there is some modification on the network I need to change to get 3G. Could you please let me know what should I do?
Thank you,
Andy
Click to expand...
Click to collapse
Go to the miui thread in development section and use the apn from there. That should theoretically fix your issue...
Sent from my SGH-I777 using xda premium
yubbi84 said:
Hi guys.
I didn't know where to post and I have few questions on my Galaxy SII I bought from Korea and brought to USA.
I have KT's 250S galaxy SII and I'm trying to use it for At&t. I tried to put my At&t sim card in and looks like it is getting some connection. I was able to make a call.
However, looks like it's not getting any 3G connections. I heard there is some modification on the network I need to change to get 3G. Could you please let me know what should I do?
Thank you,
Andy
Click to expand...
Click to collapse
There is nothing you can do.
http://forum.xda-developers.com/archive/index.php/t-1052222.html
From the third post down:
Code:
<< Korea Galaxy S2 Network support >>
Double band UMTS 900/2100
Triple band GSM 900/1800/1900
<< EU Galaxy S2 band Network support>>
Quad band GSM 850/900/1800/1900
Quad band UMTS 850/900/1900/2100
AT&T and International (I9100) GSIIs support the same bands, which is why I9100s work perfectly in the US. Your device is completely missing support for the 850 MHz band (first device I've seen in years that wasn't quadband GSM other than dumbphones) and also missing support for 3G in the 1800 MHz band.
So you will not have 3G coverage anywhere, and you will completely lose coverage where AT&T uses the 850 MHz band.

[Q] Huawei U8860 How to use 3G on T-mobile in the US

Hello All,
Has anyone had any luck getting a Huawei U8860 to work on T-Mobile in the US?
Here are the details on the phone:
It was a Chinese model that I upgraded to the worldwide Android 2.3 ROM from the huawei site.
I have voice and 2G Edge Data working, but I can't get 3G.
It is a quad-band (GSM 850/900/1800/1900) device.
The phone says it supports 3GGPRS, HSPA and WCDMA. I also read a CNET review where they were unable to get 3G and were limited to 2G Edge.
Has anyone had any luck with this device in the US? T-Mobile or AT&T?
Thanks
3g connectivity
I am in South America, and I am experiencing the same problem. No 3G connection! Please help!!
So far I've tried two officicial ROMs (2.3 and 4.0) withou luck. In fact, I was hoping that the problem was fixed with the new official ROM released today, but I am still getting just EDGE connectivity.
Help!!
I think the problem is the radios on the phone. I did more reading, and it appears that it does not support the HSPA frequencies, so it cannot do 3G in the US. Apparently, the only penta-band phone that does 3G world wide is the Galaxy Nexus. Oh well, the phone is still usable, I just have to suffer through 2G speeds.

[Q] tmobile in att area, which sgs3 to get?

I've been wanting an upgrade from my G2x for a while and what I want, which is what everyone else wants, is the Samsung Galaxy S3. I don't know which model to get, being that there are so many models of the S3 depending on the service provider. Here's the situation: I'm on a t-mobile value plan, living in West Virginia (I'm a student) with the only service here is roaming on AT&T, thus I only get edge. Can I use a different model, like an unlocked AT&T, and then be able to use more than 2G? Then be able to get full 4G when I do go to t-mobile service area? (From the chart by forum moderator, it shows AT&T shares 1900 mHz, 2100mHz, HSPA+, so it should technically work with tmobile, correct line of thought?)
*I already know that unlocked international version won't be able to get on anything more than 2G in US, it having different radios.
Also, read somewhere that I could buy the AT&T model and be able to use international LTE networks. Is that true? Could someone here enlighten me about the issues with the radios/frequencies (for US) for S3?
Much appreciated. Tried to find this question answered somewhere, and couldn't so posting now.

[Q] How to Flash AWS unto Rogers Variant

Hey I have the Rogers variant of the galaxy note. I want to be able to use it on wind mobile, and previously it was assumed that such a task was impossible. However, I hear now that we can flash AWS the 1700mhz frequency bands onto the device. Now I'm curious in how I would go about accomplishing such a feat. I am new hear as I have just recently bought the device for my mother as it was priced at such a bargain $300, thus I lack the knowledge.
You don't flash the frequency bands. You flash modem software capable of connecting your phone to that set of frequencies.
There's a thousand posts about using the note on t-mobile network -- to use it on Wind, just follow those threads, as they are the same frequencies.

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