I have an i777 that was unlocked with Siyah. It obviously was an old AT&T phone but I'm trying to use on T-Mobile.
I know that there are physical differences with the radio that won't allow it to get more than a 2G data signal in most areas on the EDGE network. That would be fine if I could get any signal for voice, texts and 2G data but I don't get anything.
The phone only wants to find AT&T towers and will not ever show T-Mobile signals.
I assume that I need to flash a T-Mobile modem but they are all for the T-9898 and not the i777 or i9100.
I would appreciate any advice.
Thank you,
Patt
I can't speak with first hand experience, but I can say that others report using the I777 on T-Mobile. The only modems that can be installed are the AT&T modems, so your problem appears to lie elsewhere.
I've been reading the I777 forums since the phone first came out, and I think if you search the forums, you will probably find a number of threads that discuss this issue, and that may give you an idea of what to do to get your phone to work on T-Mobile.
Pattonator said:
I have an i777 that was unlocked with Siyah. It obviously was an old AT&T phone but I'm trying to use on T-Mobile.
I know that there are physical differences with the radio that won't allow it to get more than a 2G data signal in most areas on the EDGE network. That would be fine if I could get any signal for voice, texts and 2G data but I don't get anything.
The phone only wants to find AT&T towers and will not ever show T-Mobile signals.
I assume that I need to flash a T-Mobile modem but they are all for the T-9898 and not the i777 or i9100.
I would appreciate any advice.
Thank you,
Patt
Click to expand...
Click to collapse
Just FYI, you cannot carrier unlock a phone with a kernel.
You will need to do some research.
Related
I've been having signal issues with my unlocked tmobile vibrant here in canada. I have telus signal in city (3g i assume) once i go out to the county i got nothing on my phone... i can see other providers just not telus.... and my friends who have telus iphones etc have 4 bars +.
After reading this http://forum.xda-developers.com/showthread.php?t=923712
Assuming the OP is correct in that the fascinate and vibrant are almost identical... would it be possible to switch the modem to solve my signal reception issues?
Thanks
** i've contacted telus and they dont have any answers for me... the phone cleared their online compatibility checker and im on my second SIM.
Any follow-up on this? Im on Wind right now with my T959, might have to switch providers... from what I understood the T959 does NOT use the same bands, so I'm wondering if that's your problem, and possibly my future one... let me know
I have the latest radio from Telus T959TKG2 and runs like a charm
I have been around the forum for many years now, but am new to Android. I purchased a GT-i9100 in India for work travel between US and there. I have rooted and upgraded to 2.3.4, and applied a new kernel to remove the exclamation point. So, with that said, here is my question:
I am in the US right now, and in an area supported by T Mobile HSPA, but the phone will only connect to Edge. I am PRETTY sure it was only connecting to Edge before I did the work, but I cannot be sure. Would there be anything I did to the phone that would prevent it from getting onto the "4G" network? Is there anything I need to do now to change so it can connect?
I am not sure if this is related either, but I have a Verizon LTE data card, and if I place that SIM in the GT-i9100, it won't recognize it at all. It seems to only see T Mobile and ATT in the US.
I have spoken to T Mobile and they confirmed the 4g availability where I am, and they also reset my network connection, so the issue does not appear to be on my account or with TMobile.
Sorry for the long post, but I have been searching around and can't seem to get my small mind around resolution.
The SGS2 does not work with T-Mobile's 4G bands here in the US. If you want 4G you'll need AT&T.
dvinnola said:
Sorry for the long post, but I have been searching around and can't seem to get my small mind around resolution.
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Click to collapse
That's because there is no resolution. As stated in several other threads on these forums (learn to do a search, and there's even one on the main page of Q/A right now) THERE IS NO WAY to get 3G on T-Mobile. The hardware in the phone does not support their 1700MHZ band.
Your 2 options:
1. Buy a T-Mobile phone
2. Switch to AT&T
Hi guys, I am about to receive a "new" refurb AT&T GSII to use on my T-mobile account. I have not yet received it, so forgive me if this is a stupid question, I just want to be ready for when I get it.
Will I be able to root the phone straight out of the box? I know I need to run the unlocker from the market, but need to root first. Is the phone "locked" like iPhones are out of the box? Thanks!
And also, can I ask what the number 1 recommended ROM is for this phone? I read CM7 has some issues, but are there any CM7 based ROMs that everyone loves?
No, I believe the phone works just fine without a simcard. You should be able to start up odin, flash CWM, and flash a rooted rom all without an active sim card. You can also setup the phone by connecting it to a WiFi network. Once unlocked it will work with your T-Mobile sim.
I don't think the att sgs2 has the radio to work on t-mobile's 3g bands. You'll be limited to edge speeds. If you are ok with that, you should be all set.
Sent from my SGH-I777
karth500 said:
I don't think the att sgs2 has the radio to work on t-mobile's 3g bands. You'll be limited to edge speeds. If you are ok with that, you should be all set.
Sent from my SGH-I777
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Click to collapse
Yea, I have no data plan so I'm all good with the incompatible radio. Plus the screen/phone size on the I777 is perfect for me, while the Tmobile one is slightly too big.
I guess I will just follow the guides to root it. Now to pick the best kernel and ROM...
So I originally had my SGS 2 with Tmobile but I recently unlocked it and switched over to ATT (Don't ask). Since then I have been unable to obtain any internet access at all except WIFI. Would anyone with knowledge of this please way in on this topic! I can do everything else but I have no internet at all.
Thank you for considering this and responding if you do. I know it takes your time away from something else.
Scott from Florida
stringewinger123 said:
So I originally had my SGS 2 with Tmobile but I recently unlocked it and switched over to ATT (Don't ask). Since then I have been unable to obtain any internet access at all except WIFI. Would anyone with knowledge of this please way in on this topic! I can do everything else but I have no internet at all.
Thank you for considering this and responding if you do. I know it takes your time away from something else.
Scott from Florida
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Click to collapse
T-mobile USA SGS 2 is the SGH-T989. This is the forum for the i9100. Two totally different phones.
Also, the T989 uses different frequencies than what ATT uses... Even if you do get it running, I don't think you'll be able to get better than Edge for mobile data speeds. From what I hear, you MIGHT be able to flash a different modem to use ATT's network optimally, but I can't guarantee that.
EDIT: actually, after a few minutes research, maybe you won't need to flash any modems. Likely, you may just be missing your APN settings. Check your APNs. If they're missing, google what they should be for ATT, and enter them. You'll want the wap.cingular one.
http://www.youtube.com/watch?v=69lHUIkEOIE
here you go, someone already made a tutorial for you
Hey, I have the SGS2 HD LTE I757M and I was wondering if anyone knows what the substantial difference between the T989's kernel and the I757m's in terms of cellular reception/management as I am having issues getting AWS to work.
I have flashed the t989's radio and unlocked my phone so I can try my WIND sim in it. I had the t989, and on the t989 it worked flawlessy. I could send and receive messages, calls and I had internet speeds of up to 6 or 7 mbps (which is good for WIND ). On the I757M, I could send and receive texts and SOMETIMES they would go through, where other times they wouldn't. I could make calls after a short delay, but I could never receive them. I could also connect to data services and while Speedtest claims I had 3 or 4 mbps, it was slower than dialup.
I looked at dsixda's kernel at github.org/dsixda and noticed the binary blobs from Bell (a non-AWS network). I did some reading on RIL's I copied the equivalent radio files from a T-Mobile T989 kernel (TeamChopsticks I think?) but that didn't do a single thing haha.
Anyway, that was all I could really think of besides kernel source as the RIL and the modem were the same. Seeing as people here know their way around the kernel better than I do ( I know Java well and a fair bit of C but I never have time to muck around with kernels and when I do, it normally ends disastrously...), I was wondering if maybe any of you had some ideas on how to make AWS frequencies work better as I like the screen so much more than the blueish T989.
Obviously they have slightly different radios as one is capable of LTE while the other is not, but I've heard users of the I727 Skyrocket LTE have much more success with the T989 modem than I was (I also tried the T879 modem and the Blaze modem, but neither worked any better).
EDIT: Also, according to pdadb, they're all based on the MSM8660 chipset, so they should be able to work similarly
mangelok said:
Hey, I have the SGS2 HD LTE I757M and I was wondering if anyone knows what the substantial difference between the T989's kernel and the I757m's in terms of cellular reception/management as I am having issues getting AWS to work.
I have flashed the t989's radio and unlocked my phone so I can try my WIND sim in it. I had the t989, and on the t989 it worked flawlessy. I could send and receive messages, calls and I had internet speeds of up to 6 or 7 mbps (which is good for WIND ). On the I757M, I could send and receive texts and SOMETIMES they would go through, where other times they wouldn't. I could make calls after a short delay, but I could never receive them. I could also connect to data services and while Speedtest claims I had 3 or 4 mbps, it was slower than dialup.
I looked at dsixda's kernel at github.org/dsixda and noticed the binary blobs from Bell (a non-AWS network). I did some reading on RIL's I copied the equivalent radio files from a T-Mobile T989 kernel (TeamChopsticks I think?) but that didn't do a single thing haha.
Anyway, that was all I could really think of besides kernel source as the RIL and the modem were the same. Seeing as people here know their way around the kernel better than I do ( I know Java well and a fair bit of C but I never have time to muck around with kernels and when I do, it normally ends disastrously...), I was wondering if maybe any of you had some ideas on how to make AWS frequencies work better as I like the screen so much more than the blueish T989.
Obviously they have slightly different radios as one is capable of LTE while the other is not, but I've heard users of the I727 Skyrocket LTE have much more success with the T989 modem than I was (I also tried the T879 modem and the Blaze modem, but neither worked any better).
EDIT: Also, according to pdadb, they're all based on the MSM8660 chipset, so they should be able to work similarly
Click to expand...
Click to collapse
I have the same issue !
I'm using mobilicity and I only have CDN Roaming.
i tried all the modems aswell but no luck.
Does anyone have a solution for this ?
mangelok said:
Hey, I have the SGS2 HD LTE I757M and I was wondering if anyone knows what the substantial difference between the T989's kernel and the I757m's in terms of cellular reception/management as I am having issues getting AWS to work.
I have flashed the t989's radio and unlocked my phone so I can try my WIND sim in it.
Click to expand...
Click to collapse
Do you have the Bell SGS2 HD LTE i757m?
How do you unlock the phone?
proza said:
Do you have the Bell SGS2 HD LTE i757m?
How do you unlock the phone?
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Click to collapse
I unlocked it by purchasing the code on ebay, placing another sim in it and then typing the code.
you may be able to use the free unlock method used by the skyrocket and the hercules though.
as for getting it to work on WIND, I was able to by copying the modem and modem related files from the system folder on the t989. it did not work well so I ended up selling it.