[Q] Flashing over to gsm? - Sprint LG Optimus G

Hey all, Thanks to all the Dev's that have worked on LGOG. They've made life so pleasent since I've been on the LS970. I have since left and moved to the G2 and I am wondering if I can use this phone on AT&T's network. I understand that ATT is a GSM nertwork and Sprint is a CDMA network. So I am wondering if it is possible to flash an AT&T Rom over the phone or would I have to go as far as soldering a sim card holder on to the mother board. Once more, any help is greatly appreciated. Muchos Grassyass!

I don't see a place to insert a sim card. The Att version has the sim behind the volume rocker (which appears to not be removable on my phone). You are probably better off buying an Att one for like $167 or so on eBay and reselling the sprint one after you have it working.
Sent from my LG-LS970 using Tapatalk

Related

[Q] Telus to Bell S3 used

Hi all,
I've been trying to follow a few threads from the Canadians running the i747 S3 but haven't found a definitive answer.
I found a seller on kijiji with a rooted and unlocked (originally Telus) S3. I'm with Bell.
Am I going to have to flash the stock Bell image before I go to the Bell store to activate it? The bloatware and what not from Bell doesn't bother me, I just want to be SURE that I can take his phone and activate it on the Bell network without any issues with performance.
Can I simply take his Telus version that's unlocked and use it with Bell along with Telus' stock image?
I'm mostly new to the Android world and coming from an iPhone 4s... my apologies in advance if any of my terms are out of context.
Thanks for reading
Yes their all the same device i747M im using a bell s3 on the rogers network lte and everything
Just to clarify...
sm625614 said:
Yes their all the same device i747M im using a bell s3 on the rogers network lte and everything
Click to expand...
Click to collapse
Did the Rogers store put their bloatware on your previous Bell phone? And is it a matter of putting my sim card in the phone from my previous iphone 4s to activate it?
Im sure someone will correct me if im wrong, but if you have an iphone4s you should just need to put your sim card in the new phone and you'll be fine. The Cell providers don't really care what phone you have just the data and minute plans attached to that sim card.
If you had a BlackBerry Plan it would be different cause your new phone wouldn't work on that type of plan because the amount of data an iphone or s3 use it way different than a blackberry does.
And since both those phones use micro sim you should be good to go, just bring your micro sim card with you, plug it into the phone your wanting to buy, give it a few mintues and everything should work, make a phone call send a text before you buy it. Shouldn't have to bring it to the store or anything if you already have an active sim card
no i didnt even bring it to the rogers store. Just unlock the phone you will be using and put your sim in and your working. No need to activate it like a iphone
your iphone 4s micro sim card i don't think would work well with the s3. you'll need to buy the lte micro sim from bell.
Your iPhone 4S micro sim will work with the galaxy s3 just fine without connectivity issue. You just won't have LTE.
If you want LTE, then you'll need to change to a LTE micro sim.
Jimmyct
Sent from my SGH-I747M using xda app-developers app
jimmyct said:
Your iPhone 4S micro sim will work with the galaxy s3 just fine without connectivity issue. You just won't have LTE.
If you want LTE, then you'll need to change to a LTE micro sim.
Jimmyct
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
Exactly :highfive:
jimmyct said:
Your iPhone 4S micro sim will work with the galaxy s3 just fine without connectivity issue. You just won't have LTE.
If you want LTE, then you'll need to change to a LTE micro sim.
Jimmyct
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
Yes, that's exactly what I did and everything seems to work. I was in a rush today and only had 60% left on the battery. In less than 6 hours, it is down to 4%.
I killed all the tasks but something is taxing the battery severely. I turned off LTE as well and that seems to have slowed the battery drain.
Anyway, thanks for all the help.

[Q] Can I use a t-mobile SG3 with AT&T?

So I'm planning on getting an unlocked SG3 but it's originally from t-mobile and I currently have AT&T. Will this work? I'm not planning on getting the expensive data plans though... But I heard that AT&T wouldn't be able to read the phone because it's not an AT&T phone.
Also I have a SIM card. Would I be able to go to AT&T and ask them to transfer my contact/info from my SIM to a microSIM free? Some people have said that they simply want to get a microSIM and said that they have an adapter to make it a regular SIM card so that they can still use it for their "dumbphone."
P.S. I don't know anything about networks or phone details since I'm not knowledgable about the hardware and whatnot about technology. So please keep the explanations as simple as possible. Step by step processes would be nice!
dreamersakura said:
So I'm planning on getting an unlocked SG3 but it's originally from t-mobile and I currently have AT&T. Will this work? I'm not planning on getting the expensive data plans though... But I heard that AT&T wouldn't be able to read the phone because it's not an AT&T phone.
Also I have a SIM card. Would I be able to go to AT&T and ask them to transfer my contact/info from my SIM to a microSIM free? Some people have said that they simply want to get a microSIM and said that they have an adapter to make it a regular SIM card so that they can still use it for their "dumbphone."
P.S. I don't know anything about networks or phone details since I'm not knowledgable about the hardware and whatnot about technology. So please keep the explanations as simple as possible. Step by step processes would be nice!
Click to expand...
Click to collapse
Yes you can fully use the T-Mobile version on att and get H+ speeds. Not sure about data plan... I know that worked for international version though.
Just store your contacts on your Google account and you can sync your contacts to any phone in a minute. No need to store by Sim. Yes there are microSIM adapters, but I don't like them as they sometimes mess up the prongs that read the SIM.
The only thing you won't get is lte speeds but h+ is more than sufficient.
Sent from my SGH-T999 using xda app-developers app
I can confirm that as I am using a T-Mobile sg3 on at&t whilst typing this. The only problem I had was the mobile data wouldn't work at first and my local store changed one character of my imei and it started to work. There are other APN settings that work too.
Sent from my Galaxy Nexus using xda app-developers app

*WIP* Making a Sprint galaxy S3 sim card compatible.. *update / installed*

The Goal is to let a L710 sim card compatible. (global capable)
----------------------------------------------------------------------------------------------------------
12/24
I installed a few verizon roms. I can change the network setting, but always get an error when i search for net works.
I only have 2 sim cards to test it out so I am not sure if there are bad sims. One is verizon LTE and onther is from an overseas gsm carrier tigo.
What more can I do with out bricking my phone?
I added some screen caps.
-----------------------------------------------------------------------------------------------------------
12/6
I finally received the part from china. I installed it fairly easily. I did have to cut the back cover and pat of the metal plate from the reader.
Sd card works and reads fine. I only have have a verizon LTE and a tigo sim card to try it out So I am going to try flashing different roms soon, I am on Blazer. Nothing seems to happen when the verizon sim is inserted.
you are still be able to use sprint LTE, since the sprint sim is built into the main board and not the sd/sim reader.
Any have advise on how i can check if it know a sim card is inserted?
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
I was searching ebay for parts and I found this.
http://www.ebay.com/itm/SIM-SD-Card...341?pt=LH_DefaultDomain_0&hash=item2575c1e915
It should be as easy as unplugging the old one and plugging in the new one. You would also need to get a verizon back plate. But this phone is super easy to open and change parts, minus the screen.
You will lose LTE, unless there is some way to get a sim from sprint (the Iphone 5 has one).
Does anyone know a res eon this will not work? I plan on ordering one later today.
Thanks
ranchosteve said:
The Goal is to let a L710 sim card compatible.
I was searching ebay for parts and I found this.
http://www.ebay.com/itm/SIM-SD-Card...341?pt=LH_DefaultDomain_0&hash=item2575c1e915
It should be as easy as unplugging the old one and plugging in the new one. You would also need to get a verizon back plate. But this phone is super easy to open and change parts, minus the screen.
You will lose LTE, unless there is some way to get a sim from sprint (the Iphone 5 has one).
Does anyone know a res eon this will not work? I plan on ordering one later today.
Thanks
Click to expand...
Click to collapse
This seems pretty ambitious! I can't wait to see what develops
Quick question... Why?
Sprint LTE uses a different frequency than every other major carrier. You're not going to pop in an AT&T (or any other) card and use their LTE, and you'd still be tied to Sprint CDMA unless I'm mistaken.
NeoMatrixJR said:
Quick question... Why?
Sprint LTE uses a different frequency than every other major carrier. You're not going to pop in an AT&T (or any other) card and use their LTE, and you'd still be tied to Sprint CDMA unless I'm mistaken.
Click to expand...
Click to collapse
I believe he stated his goal is to put a SIM slot in his s3. No where did he mention AT&T or using it for any other companies. He said he would need a Sprint SIM, and no others. He did say something about a Verizon backplate though
I believe you must have left the Matrix Neo, you're not on your toes
Edit: Oops, didn't see the "JR". You're still in training
Sent from my White Galaxy s3 by Sprint
What is the point? Most carriers that use SIM cards(if not all) use GSM radios. This phone has CDMA radios, so it wont pick up the signal.
shiftr182 said:
What is the point? Most carriers that use SIM cards(if not all) use GSM radios. This phone has CDMA radios, so it wont pick up the signal.
Click to expand...
Click to collapse
I can see it's pointless for most. But for those who travel and don't wanna pay sprint ridicules roaming rates, like me. It does have a cdma radio but the LTE part of the phone has gsm capabilities like the Verizon version.
It's more of proof of concept more than anything.
The Sprint SGSIII uses a RUIM that is hardwired to that board. A RUIM can do what a SIM can do as well as handle CDMA subscriber information. An early manual for the Sprint SGSIII showed instructions for SIM removal/installation, but it was changed before launch to be a non-removable component. Likely why the phone was delayed; they changed their minds on making it a fully-fledged World Phone in lieu of other models like the new Photon.
Sent from my SPH-L710 using xda premium
its next to impossible to get a sim card for the iphone5...
The S3 would have to have another Radio hardware installed to be what you are talking about as in Travel.
That's one of the Cool features on my line 2, Motorola Photon.....World Phones is what they are called.....Sim cards most useful purpose is to move data from one phone to another, contacts etc..
I spent hours researching this as well, not to try and enable GSM for global roaming, but to maybe, possibly get LTE from Cricket working. I looked at a few pictures of the main board from Ebay auctions, and while I think it's possible to do what the OP is proposing, our main board is not the same as other GS3s. I'm no expert, but the components that are under the microSD and cover plate aren't the same, even compared to a Verizon board. On top of that, the embedded SIM card is located on the skinny side that runs up the side of the phone, next to the battery.
I can't say with certainty, since I haven't scoured every single thread on the subject, but I haven't seen anyone provide the ability to bypass the embedded SIM. Well, maybe they did when they hacked the Photon. As far as the radio goes, it would seem that flashing new radio firmware might work to get the radio operating at the right frequency. Again, I make no real claims on this, as I'm no expert. LOL But from the info I can find, the radios are the same, at least on the dual core variants across the board, and are controlled by firmware. So, in the OP's idea, this would be less than ideal, unless someone could write a custom radio version that would retain CDMA voice and EVDO data for Sprint, as well as pointing the LTE/GSM side to the appropriate frequency.
Looking at Sprint's Galaxy Note 2, the embedded SIM looks to actually be on the metal cover that houses its microSD slot, so at least that part of the equation seems like it would be easier to accomplish with that phone.
For my part, I figured that even if Cricket would allow me to buy an LTE SIM and attach it to my ESN in their system, it would still be a major pain to try and overcome the embedded SIM hurdle.
In closing, I hope that no one interprets my ramblings as me being negative. When I saw the Photon hacked, I quickly realized that it was well beyond my comfort zone seeing as I don't have the funds to replace my phone when (Not if!) I destroyed it! I'm sure that it could be possible, especially given the talent of a lot of the members of XDA. I just wanted to put in my 2 cents, and point out that there is a lot more involved than just plugging in a new component and popping in a SIM card. Hopefully people here will rip apart my thoughts and prove me wrong, as I am very interested in trying to convert my phone to use Cricket's LTE.
Why not just get a Verizon gs3 ?
Sent from my SPH-L710 using xda premium
It works on the Photon? If I'm not mistaken that came with a dual freq radio I think.
Sent from my SPH-L710 using xda app-developers app
any updates?
why not just get a gsm gs3?
first post update.
illusionistpro said:
why not just get a gsm gs3?
Click to expand...
Click to collapse
have you SEEN what S3's sell for ? yeah that's why hehehe
Jesus Christ fix the title of this thread already.
Sent from my SPH-L710 using XDA Premium HD app
how about a verizon gs3 port
would you think a verizon gs3 port to sprint gs3 will work being that phone is a world phone? i think it is..
a Sim toolkit is included in /system/app/
All you need i a launcher or an app that lets you create shortcuts to Activities, and you can then point it to the Sim Toolkit.
O I c...
Sent from my SPH-L710 using xda premium

Can I use Verizon Galaxy Nexus on Straight Talk?

THe phone is unlocked but verizon is way too damn expensive. I'd like to switch to straight talk and just use the phones I already have rather than buying new ones, is this possible? I tried googling around but nothing gave me a straight answer. If it's possible what do i have to do?
NO!!
Sent from my Galaxy Nexus using xda premium
You need a sim card for straight talk. The Verizon phone does not physically take a sim card. So, no, unfortunately, you can't.
bananagranola said:
You need a sim card for straight talk. The Verizon phone does not physically take a sim card. So, no, unfortunately, you can't.
Click to expand...
Click to collapse
...? I have a verizon sim card in the phone as we speak....?
infarum said:
...? I have a verizon sim card in the phone as we speak....?
Click to expand...
Click to collapse
Are you trying to say that straight talk doesnt offer the small sim cards that fit the phone?
infarum said:
...? I have a verizon sim card in the phone as we speak....?
Click to expand...
Click to collapse
Verizon phones have sim cards but it is only for lte. There is no GSM radio in your Verizon phone.
Sent from my Galaxy Nexus using Tapatalk 2
infarum said:
...? I have a verizon sim card in the phone as we speak....?
Click to expand...
Click to collapse
Sorry for being unclear; let me clarify. I'm pretty sure you have an LTE sim card, which is not the same as, say, a GSM AT&T sim card (which would be compatible).
If Verizon switched to the compatible sim cards, my apologies for posting the wrong information.
I tried with a verizon galaxy nexus on straight talk i bought the sim card activated then cut the sim card to a mini booted phone and no go different frequencies in canada anyways
Well actually if you have a Verizon Incredible 2 phone it does have a sim card that if tthe phone is unlocked does acept any sim card. The INC2 is a world phone, I have one near Chicago for my son and it works on Verizon, ATT, or Tmo
Esteway.619 said:
NO!!
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
This^^. Wont work dude. You need a GSM phone.
you guys are stupid i cant find a decent answer to this question because no one seems to realize that straight talk supports cdma phones
frostthejack said:
you guys are stupid i cant find a decent answer to this question because no one seems to realize that straight talk supports cdma phones
Click to expand...
Click to collapse
Help yourself then
Search on eBay. There are people that will flash your phone to Straight Talk. And yes, Straight Talk is both a GSM and a CDMA MVNO. If it's a CDMA phone then it gonna be using Verizon's network, but if it's a GSM phone, it's gonna be using At&t's network.
Straight talk doesn't use ATT anymore. You can still find the Sims that will work but they cut the plan down. GSM is primarily focused on TMo now.
I set my gf up with her iPhone 4S and she likes it.
I didn't know about supporting CDMA and their website doesn't say anything about it. I'm not even sure the process. I'm assuming a CDMA sim?
I don't think this will work, at least not by traditional means.
Sent from my Nexus 7 using XDA Premium HD app
player911 said:
Straight talk doesn't use ATT anymore. You can still find the Sims that will work but they cut the plan down. GSM is primarily focused on TMo now.
I set my gf up with her iPhone 4S and she likes it.
I didn't know about supporting CDMA and their website doesn't say anything about it. I'm not even sure the process. I'm assuming a CDMA sim?
I don't think this will work, at least not by traditional means.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
I wasn't aware of that change, thanks for the info. If you go on the Straight Talk site, and look up the phones they have for sale, the CDMA ones will have the Verizon coverage map underneath. The problem is getting your phone's esn/meid onto the Straight Talk system. Like I said, go on eBay and there are people who will do that and fully flash the phone for you.
WARpig5 said:
I wasn't aware of that change, thanks for the info. If you go on the Straight Talk site, and look up the phones they have for sale, the CDMA ones will have the Verizon coverage map underneath. The problem is getting your phone's esn/meid onto the Straight Talk system. Like I said, go on eBay and there are people who will do that and fully flash the phone for you.
Click to expand...
Click to collapse
I flashed mine to straight talk using ets follow this thread. http://forum.xda-developers.com/showthread.php?t=1696621
infarum said:
THe phone is unlocked but verizon is way too damn expensive. I'd like to switch to straight talk and just use the phones I already have rather than buying new ones, is this possible? I tried googling around but nothing gave me a straight answer. If it's possible what do i have to do?
Click to expand...
Click to collapse
You can flash it to Sprint, or Cricket, straight talk is gsm. You might be able to connect to another carriers LTE if they have bad 17
Sent from my [email protected] GHz on Stock 4.2.2
I currently have voice and texting on my Verizon gnex.
Sent from my Galaxy Nexus using Tapatalk 2

[Q] What note 2 to buy next

I currently own a note 2 L900 sprint version flashed over to boost mobile. Right now I have it on ebay. I want to get one I can use with straight talk or other gsm providers. I hear it's easy to get the ATT version on straight talk. I also hear the Verizon version can be flashed over to straight talk but idk why if it was unlocked the apn couldn't be added to use straight talk. If anyone can clarify that please let me know. Also I see different versions for Verizon and different versions for ATT. Please help me in deciding the perfect note 2 for me! Thank you all very much for viewing and any input I may get on this. Also being able to go back to boost mobile might be a plus. Where I go Verizon is the best signal but I'm all done with paying such a high bill and only getting squat for data. Also I would like to add Sprint service sux!
ok, from what I gather the sprint/verizon phones can be used and run on verizon signal. Att and tmobile run on ATT. Anyone know if there's any phones that can be programmed to accept both signals. that would be fantastic. CDMA vs GSM would be the stopper but what about the 4s and it being CDMA and GSM?
jd14771 said:
you will never find a phone in the usa that will run both cdma and gsm. unless you came from the future 0.o
Click to expand...
Click to collapse
this is so wrong that its not even funny. ever heard of the touch pro 2? a world phone with pentaband radios and a gsm sim card slot that runs cdma on sprint.
the moto photon was also a world phone as well as many blackberrys.
↑ austin420 must be from the future... lol
sent from MY BAD A$$ ET4G

Categories

Resources