I posted this in the ATnT section but I think I should of posted it here. Long story short, I got a hold of a ATnT S3, had a cracked screen. I repaired the screen and finally got it unlocked and I am currently using it on T Mobil.
So I was wondering if I need to flash any modem/radio to get the best possible performance.I know I can get LTE (1900mhz) in my area, San Diego. Regular 4G which runs on 1700mhz I will not be able to get. Quite possible I will be running on EDGE. To which I ask, is it worth keeping the phone or should I turn it around and sell it?
Thank you all for your awesomeness!
I can not switch to ATNT because I am still under contract from TMobil
Okay so im gonna be getting a At&t Galaxy s3 and i wanna swap my tmobile motherboard with it because my tmobile s3 has a crack screen and will i be able to swap them with no problems and will i be able to get the same signal and data ? or are the antennas different ?
I was recently gifted a Note 2, which is awesome and I love it, but I feel it's a shame for such a nice phone to be stuck on edge, even with Tmobile's refarming (laaaaaame). Everything I can find on Google says that it's a hardware limitation, not firmware. So I wonder, what if I swapped out the radios?
I'm aware that such a feat would require replacing the entire motherboard. If I buy a T889 motherboard and put it in my phone, what kind of issues would I run into, if any? I would have to flash firmwares and radios and such- would going to the Tmobile Note 2 board and flashing everything stock that I find over there be sufficient? Any IMEI issues that I would run into? Would my phone now be considered a SGH-T889?
No, returning/reselling and buying the T889 isn't an option. It's too much effort for uncertain risks for something I don't care all that much about. I'd be open to a trade, but it would have to be an exact counterpart to my own (unlocked, titanium gray, screen protector from new, great condition). I'm sure trading is much easier, but modding sounds much more fun.
Even if I do the mod, it won't be right away, as motherboards are rather scarce and the prices are higher than I'm willing to pay.
Not sure if it matters, but my note 2 is stock rooted and my efs partition is backed up.
Selofain said:
I was recently gifted a Note 2, which is awesome and I love it, but I feel it's a shame for such a nice phone to be stuck on edge, even with Tmobile's refarming (laaaaaame). Everything I can find on Google says that it's a hardware limitation, not firmware. So I wonder, what if I swapped out the radios?
I'm aware that such a feat would require replacing the entire motherboard. If I buy a T889 motherboard and put it in my phone, what kind of issues would I run into, if any? I would have to flash firmwares and radios and such- would going to the Tmobile Note 2 board and flashing everything stock that I find over there be sufficient? Any IMEI issues that I would run into? Would my phone now be considered a SGH-T889?
No, returning/reselling and buying the T889 isn't an option. It's too much effort for uncertain risks for something I don't care all that much about. I'd be open to a trade, but it would have to be an exact counterpart to my own (unlocked, titanium gray, screen protector from new, great condition). I'm sure trading is much easier, but modding sounds much more fun.
Even if I do the mod, it won't be right away, as motherboards are rather scarce and the prices are higher than I'm willing to pay.
Not sure if it matters, but my note 2 is stock rooted and my efs partition is backed up.
Click to expand...
Click to collapse
1. research/check on the LTE frequency bands t mobile uses then go check for example at gsmarena.com if the N7105 supports those bands by checking it's technical specifications
2. in the mean time you can try this.. go to SETTINGS then MORE SETTINGS then MOBILE WIRELESS change your NETWORK MODE to LTE/GSM/WCDMA AUTO
if this doesn't work and t mobile runs in an LTE frequency band supported by your handset it could also mean you need to upgrade/replace your SIM card .....same number but the new chip has LTE features inside it..it's possible
Sent from my GT-N7105 using Tapatalk 4
dead soul said:
1. research/check on the LTE frequency bands t mobile uses then go check for example at gsmarena.com if the N7105 supports those bands by checking it's technical specifications
Click to expand...
Click to collapse
I've done my research on this. Tmobile uses AWS, which the n7105 doesn't support. Tmobile is refarming some of their 1900Mhz to free up frequencies for LTE, which the n7105 does support, but I'm not getting 3G speeds in those areas at all. I've seen around these boards that I'm not the only one to do so.
dead soul said:
2. in the mean time you can try this.. go to SETTINGS then MORE SETTINGS then MOBILE WIRELESS change your NETWORK MODE to LTE/GSM/WCDMA AUTO
if this doesn't work and t mobile runs in an LTE frequency band supported by your handset it could also mean you need to upgrade/replace your SIM card .....same number but the new chip has LTE features inside it..it's possible
Click to expand...
Click to collapse
As I said before, my research indicates that it's a radio hardware issue, not firmware. There are posts on how to get AT&T/Verizon/Sprint/Tmobile versions to work on each other's networks, but not much on getting international versions to fully support LTE in the US. Besides, I get 4G just fine in my old G2.
Which brings me to my original question- what issues would I run into should I do a motherboard swap?
Bump.
Selofain said:
I've done my research on this. Tmobile uses AWS, which the n7105 doesn't support. Tmobile is refarming some of their 1900Mhz to free up frequencies for LTE, which the n7105 does support, but I'm not getting 3G speeds in those areas at all. I've seen around these boards that I'm not the only one to do so.
As I said before, my research indicates that it's a radio hardware issue, not firmware. There are posts on how to get AT&T/Verizon/Sprint/Tmobile versions to work on each other's networks, but not much on getting international versions to fully support LTE in the US. Besides, I get 4G just fine in my old G2.
Which brings me to my original question- what issues would I run into should I do a motherboard swap?
Click to expand...
Click to collapse
I have seen my note II bring opened up and I have seen a video of a N7100 being open up...they are virtually identical to me atleast.... I saw all the complex/circuitry /smart chips were all on one board like RAM, CPU including the radio...Obb the motherboard..most things if not all which connect to the motherboard are dumb circuits like there was a small board which holds the charging port and Mic and that board has a cable to connect to the main mother board...which I'm pretty sure it's dumb.no advanced circuitry...the 3.5 mm Jack port same thing, the antennas are just cables nothing smart on that, the LCD had a one cable I believed just connecting to the mother board...I personally, only my opinion there could even be a good chance somebody could even switch a note II motherboard and force into a note I so if you want to change mother boards between note II variants I think you could be successful...but again..I could be wrong...see some note II tear downs on YouTube between note II variants..and do the judging by yourself
Sent from my Samsung Note II N7105 LTE using Tapatalk 4
Hey guys! I'm trying to get my Verizon S4 working for my wife on T-Mobile! She got the LG G3 last night and because she's so tiny, it's like a tablet to her!
Anyways, the Verizon S4 is rooted and is still on original MDK firmware. With that said, I'm not too sure exactly which steps in your guide apply to our situation...not having safe strap and all.
With changing the APN settings to match up to my phone (LG G3 on T-Mobile), and inserting a T-Mobile 4G sim card, I'm able to get calls and SMS working over WiFi on the S4...that's it though. No mobile data seems to be coming through. Her mobile signal icon in the status bar keeps switching back n forth from E to H for some reason...but no LTE or 4G icon.
Anyways, is this something anyone thinks they could help with? Or do ya think we're screwed? My sweet wife would be eternally grateful if someone could help to make this happen!!
EDIT: haha, my signature will be changed if I'm able to get this working for her!
Aren't you missing something here? Verizon is CDMA, TMo is GSM. I don't see how you can get cell coverage to work unless the phone has dual antennas.
enmatt said:
Aren't you missing something here? Verizon is CDMA, TMo is GSM. I don't see how you can get cell coverage to work unless the phone has dual antennas.
Click to expand...
Click to collapse
Many newer CDMA devices with LTE support have gsm radios as well, that includes sprint and Verizon..
To OP, you may have better luck searching the Verizon forums if nobody replies here
Hey all. Hopefully this isn't as obvious as I think it is. I have a Verizon Note 3 and recently dropped Verizon and went to Tmobile prepaid. I flashed Alliance's rom from the Verizon forum here and all seems to be working although sometimes the calls and connection are a little flaky. My question is this. ..since I am on Tmobile service now, should I be flashing Tmo ROMs here or should I stick with flashing Verizon Roms since that is the original maker of the phone? Thanks in advance guys
...
As long as the hardware is the same, and I believe it is, you'll probably get much better service on a T-Mobile ROM. Wait for a second opinion though.