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I have been browsing these forums for a few days now and i'm wondering, I got a thunderbolt, rooted, tried a couple different radios, and i'm banging my head against the wall trying to figure out if it can be done.
I am a little bit of a noob when it comes to cellular phones but i have learned alot in the past week about CDMA, GSM, LTE and the sim cards. I have played with the android SDK a little bit have not published anything yet but It is a hobby currently that may go a little farther than that. also i read and understand that verizon phones do not natively use sim cards.
anyways, my phone recognizes that there is a sim card in it now when the T-Mobile card is in. and as a result I am led to the conclusion that it has something to do with the radio I am using.
Other maybe useful information (which could also be another thing in need of a solution) is the T-mobile phone I am using the sim card from was from a nokia phone that cost me $50.00 for the phone and service for a month.
Does the Sim card cause an issue switching it from a non-smartphone to a smartphone?
Other useful information is I am using the Thunderstick ROM
Revolutionary Rooted
HBoot(which I am unsure of the function of hboot) 6.04.1002
Radio 1.39.00.0430r
eMMC-boot
I like this phone so far and see it as a useful tool, got it from a relative after they upgraded their own.
If you need any more information let me know or if you know my problem would be helpful. again i have learned alot since i got this thing, and i've been just using the android emulator on a 6 year old computer so this is quite the present either way!
I've seen youtube videos of people going to websites and putting in codes like *#06# but i think i need a little guidance to the right direction. i'll be checking this thread daily at least. thank you in advance for reading my small wall of text
long time reader, first time poster!
No T-Mobile is GSM thunderbolt is cdma
Sent from my ADR6400L using xda premium
it was fun banging my head against the wall the past few days, learned regardless. thank you for the speedy response!
i despise verizon wireless for their prices of their contracts, i think that the only other solution to use this phone with is MetroPCS, correct me if i am wrong (just watched the guy on the XDA TV go off about how much power the major 4 cell providers in america have so much power)
seems like they have affordable plans also.
Yes, a guy on here posted that you could flash your thunderbolt to PagePlus, but keep it mind that you will have no LTE.
Whoops, it was PagePlus not MetroPCS. Fixed in post.
http://forum.xda-developers.com/showthread.php?t=1294179
thank you so much for that last post, i guess i didn't brows through everything because i missed that one, but i was aiming for t-mobile, but i'm thinking the transition to metropcs will be smoother based on they use LTE and CDMA, either way this is more than i thought i'd bite off, but i'm still hungry.
very interesting tutorial, again thanks so much for knowing the forums better than myself.
if this was a HD2 it would be sooo easy it seems.
while tinkering is always fun, why not just pick up a t-mobile phone on craigslist? For about 200-250, you can get most of the high end t-mobile phones, and you will have hspa+ which works great for data when you can get a signal (left t-mobile due to signal issues at work).
Today on Ebay Daily Deals, Samsung Google Nexus S GSM unlocked for 299. No Contract. 200ish left.
Also I am having signal issues where I am I figure of may be a good time to test the waters and swim to a new service provider. Tinkering is fun and educational. Found the service provider that fits the phone and think it will be fun
Sent from my ADR6400L using XDA App
Gephoria42 said:
Also I am having signal issues where I am I figure of may be a good time to test the waters and swim to a new service provider. Tinkering is fun and educational. Found the service provider that fits the phone and think it will be fun
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
Especially since you'll be seeing Tmobile become ATT.
Ok, just a disclaimer (I am well-aware of my n00b status here)... I spent quite a few hours already on this site and on the Android forums, and on Google searching for answers to this... Not to mention time at the AT&T store and chatting w/some other phone reps (including Samsung tech support and AT&T tech support)... And while I've made some progress, I still can't get any definitive answers here.
So... that being said, first (and big 'sigh' I'm sure to many) is that I'm using a South Korea Note - the SHV-E160S. I know this is the I717 forums, but before I get flamed and booted, let me explain...
Well, I am on AT&T. No problems with calls or texting (minus the annoying 80-character limit, but anyways)... However, I have a BIG problem with the LTE. I'm on the LTE data plan, however, I cannot access any data network other than GPRS. Yes, my pings take about 533ms. My download speeds are about 53kb/s. This sucks, quite a lot. Esp when compared to my fiance's Note, which side-by-side gets about 13mb/s on the LTE network.
So... Did some research, and got the run-around... Less all the crap I heard from AT&T reps... It seems that the antenna for my Note is set to LTE850/LTE1800, and the actual AT&T SGH-I717's antenna is set to LTE700/LTE1700/2100. My sources for this come from PDAdb.net (I'd hyperlink, but my post count is not high enough to do that, yet).
So... Here come the questions. First... Is the antenna frequency tuning something built-into the hardware, or is it something that can be tuned via software?
-If it's in the hardware, would it be possible to buy an AT&T-spec LTE antenna? Which antenna gets replaced (from what I understand, there are two, and I can't find a legit source that tells me which is which), and where could I buy such a thing?
-If it's in the software, what would I have to do to re-tune the antenna? My phone is rooted with the latest Gingerbread Tegrak kernel.
Lastly... Though there is a difference between the LTE antennas... I still cannot access any network other than GPRS. I should at least be able to access EDGE, UMTS, HSDPA, HSUPA and HSPA+ as well, but I can't.
If ALL else fails, I guess I could get a portable tethering device with a contract... But that'd be oh-so-annoying to have to carry around all the time, and I'd like to avoid that option as much as possible. I'm paying $30/mo for LTE service on my phone already!
Anyways... Any thoughts or advice would be very appreciated, and my apologies if anything here is out-of-place. Thanks in advance!
U have the international note. Doesn't have late chip in it. But ur note has better CPU then the att note. The international note CPU is not comparable with att lte chipset that's y Samsung use 2different CPU. Yes u should be able to get 3g. Reset your apn. And search around. To find the code to reset your apn. I forgot. Its something like *2260*
I had an international first, had to rest everything to get data. But after few days. I return it cos I prefer to have lte speed more then CPU speed. And I found out the u can just over clock att note to 1.85 instead of stock 1.5. So now I am very happy with my att note.
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
Hmm I'm not sure if this method works with the International Note but it's worth a try. You need to get into ServiceMode. On your phone dialer keypad type *#2263# and choose 2 WCDMA Band Preference and select (6) WCDMA all.
Reply with your findings.
babymatteo said:
Hmm I'm not sure if this method works with the International Note but it's worth a try. You need to get into ServiceMode. On your phone dialer keypad type *#2263# and choose 2 WCDMA Band Preference and select (6) WCDMA all.
Reply with your findings.
Click to expand...
Click to collapse
Thanks for the tip, but all I get is an error: "Connection problem or invalid MMI code."
:\
Maybe the issue is your kernal and/or radio? Isn't the Tegrak kernal Korean? Most likely your radio is also. That is probably your issue. The way I see it you have 3 choices: Live with it, Sell it and buy an I717 variant, Take the risk and at least flash the ATT Gingerbread radio.
home screen/ menu/ system settings/ more/ mobile networks/ access point names/ AT&T
Do all your entries match these? Write down your current ones before changing or take screen shots. You must use the menu key and save changes. Also make sure that is the APN checked after rebooting.
http://farm8.staticflickr.com/7226/7298567918_306aaab920.jpg
http://farm8.staticflickr.com/7236/7298567982_82c3b41861.jpg
chak29 said:
U have the international note. Doesn't have late chip in it. But ur note has better CPU then the att note. The international note CPU is not comparable with att lte chipset that's y Samsung use 2different CPU. Yes u should be able to get 3g. Reset your apn. And search around. To find the code to reset your apn. I forgot. Its something like *2260*
I had an international first, had to rest everything to get data. But after few days. I return it cos I prefer to have lte speed more then CPU speed. And I found out the u can just over clock att note to 1.85 instead of stock 1.5. So now I am very happy with my att note.
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
Click to expand...
Click to collapse
he doesn't have the international note(n7000) he has the South Korea Note - the SHV-E160S (he says it in OP), which it has the same processor as ours but some minor diferences in other things.
To the OP, why do you have a korean Note when from your avatar you're in the US?, I'm sure there's your problem, that note is set to use bands in korea and not in US, so the data is going to be crap, and for you to attempt to swap out the antenna is risking braking the phone because you run a chance after swapping it, not working and not having a working phone anymore.
aj_vogtman said:
home screen/ menu/ more/ mobile networks/ access point names/ AT&T
Do all your entries match these? Write down your current ones before changing or take screen shots. You must use the menu key and save changes. Also make sure that is the APN checked after rebooting.
Click to expand...
Click to collapse
I matched the APN settings of my fiancee's LTE Note first, and that did not work... It's pretty much exactly what you have posted. However, there are a couple things of note (bad pun, sorry). I do not have a 'APN enable/disable' or 'Bearer' field... However, everything else is set the same.
roloracer said:
To the OP, why do you have a korean Note when from your avatar you're in the US?, I'm sure there's your problem, that note is set to use bands in korea and not in US, so the data is going to be crap, and for you to attempt to swap out the antenna is risking braking the phone because you run a chance after swapping it, not working and not having a working phone anymore.
Click to expand...
Click to collapse
I have a Korean Note because I was living in Korea for a while, and I just got back to the US last week.
As in my OP, I found that the LTE bands are different; however, I can't even get on any other data networks other than GPRS. I've tried some APNs for HSPA+, and the results are the same.
Swapping the antennas shouldn't be THAT big of a deal if I had to... I'm pretty mechanically inclined. Obviously, I need to know if it would provide the intended results or not first.
Pscheoverdrive said:
I have a Korean Note because I was living in Korea for a while, and I just got back to the US last week.
As in my OP, I found that the LTE bands are different; however, I can't even get on any other data networks other than GPRS. I've tried some APNs for HSPA+, and the results are the same.
Swapping the antennas shouldn't be THAT big of a deal if I had to... I'm pretty mechanically inclined. Obviously, I need to know if it would provide the intended results or not first.
Click to expand...
Click to collapse
Thanks for the reply, was just wondering where you got a Korean note. hope you can figure it out and good luck.
Sent from my CM9 Note.
OK I have looked and looked but to no avail. Can someone just give me a straight answer. Will the i717 work with a T-Mobile SIM? t-mobile finally works in my area and decided to go with them, on their $30 a month plan. Which is 100 min( I don't talk much) and unlimited text and data ( data up to 5GB first 2 4G, 3G then on also they give you SIM or $.99 if you order their web site Another reason I went with them, cause I can use any unlocked GSM phone on their network. I never had much of a choice when it came to cell service since I live up in the mountains of East Tennessee. Only Verizon and Sprint Picked up at my house. You'd have to go 4 miles down the road to pick any GSM carrier. So any ways I just got a sweet deal on an i717 on eBay for $238 in great condition with some accessories. I read around that the Radio's and can be changed to accommodate T-Mobile's service? I have rooted devices before and know that's not a problem to put a custom ROM it so as to have the right radio. But Need advice on what to do and where to start. Anyone's help and I will forever be indebted to you. I apologize if This has been answered else where ....I just couldn't find it.
Yes this note will run on t-mobile network. Nice plan!
1. Flash CWM kernel.
2. Flash rooted kernel.
3. Flash Blaze modem.
4. Input APN settings.
Everything you need is here on Bigjoe's Super Everything page:
http://forum.xda-developers.com/showthread.php?p=28040353
Just follow the above sequence to get to your goal. Flash the fancy roms after you get your rig working.
And hit the thanks button for Bigjoe and the other threads you will visit.
A buddy of mine is wanting to do the same thing only he wants the N7000 instead of the i717. I know that the N7000 in the international Version but could you do the same with what yo explained to me with the i717?
Send a PM to Bigjoe. He is a contributor to the international version as well, so he will guide your friend.
sacosta115 said:
A buddy of mine is wanting to do the same thing only he wants the N7000 instead of the i717. I know that the N7000 in the international Version but could you do the same with what yo explained to me with the i717?
Click to expand...
Click to collapse
The international version doesn't support the bands and features a different chipset altogether. I wouldn't recommend getting it for T-Mobile, you'll probably be stuck on EDGE data forever.
Tmobile wont work on Note-7000
Brought a international note on Ebay, used with Tmobile in San Francisco area.
Getting only edge speeds.
So I am leaving Montana for south Korea soon and was pretty excited to learn that my Rezound is global capable. The only thing is I am unsure if it will work on a Korean SIM card, or how to do so. I am s-off running the first leaked ics ruu. Do I need to ruu to the global firmware? Or will any gsm capable roms work without a firmware update? Also, if there's any one out there who has been to south Korea and could give me some tips on providers to choose from it would be appreciated.
Sent from my ... Rezound
You need to install the official Global RUU, leaks can be problematic because they prevent you from getting OTAs on stock rom and may not be the latest, most stable software.
I think there have been like 2 official firmware upgrades and several leaks between what you are running and global.
You do need a GSM enabled ROM, and one that is based on the global firmware. Simplicity or Newts One XXX 5.08 may be good options for you if u want to stick with a Sense ROM.
You may still need to call Verizon re: international calling, although I wouldn't mention I was rooted.
Sent from my Rezound using Tapatalk 2
brenuga said:
You need to install the official Global RUU, leaks can be problematic because they prevent you from getting OTAs on stock rom and may not be the latest, most stable software.
I think there have been like 2 official firmware upgrades and several leaks between what you are running and global.
You do need a GSM enabled ROM, and one that is based on the global firmware. Simplicity or Newts One XXX 5.08 may be good options for you if u want to stick with a Sense ROM.
You may still need to call Verizon re: international calling, although I wouldn't mention I was rooted.
Sent from my Rezound using Tapatalk 2
Click to expand...
Click to collapse
Thanks for helping. I was a little unclear in my original post however; I actually am running Newts One XXX 5.1.0 currently (awesome by the way). What I am wondering though is this; will the fact that I am not on the global firmware mean that I will need to RUU update in order to get service with a South Korean provider. I do not plan on trying to remain with Verizon as I will be in South Korea for more than a year.
Sent from my Windows 8 PC
You will have to ruu to global firmware to obtain global radios to work with the global Rom
Sent from my ADR6425LVW using Tapatalk 2
rezound in rok
I'm also heading to the rok and hoping to use my rezound. I'm on stock ics ota. I'm going to see what I get on a stock rom before I do any unofficial releases, but I expect to drop SMS capabilities or maybe data like you see in the states with a T-Mobile sim in. I arrive in Korea on the 31st so I'll update sometime late next week and let you know. I've been to Korea before and I believe we will have to go with SK Telecom as our carrier because it is the only GSM network. The other networks are cdma to the best of my knowledge. Hopefully my next update will be from my phone on a Korean network!
Rezound in South Korea update
In Korea now. I just flashed my phone from a stock OTA ICS, unrooted, s-on over to the Global RUU found on Androidpolice.
I have tried to buy just a sim card from several stores, SK, KT Olleh etc, and the stores all say that I have to go to the headquarters stores located in Seoul, Yongsan Train Station on the top floor. Apparently this is the ONLY way to get a sim for a global phone, other than having a korean national get one for you and give it to you. This weekend I will be going to the headquarters stores and getting a sim, Other problems you may run into are related to being a foreigner in Korea. They will sometimes not want to sell you a phone on a contract because you as a foreigner could disappear at any time without paying the bill. So, they will try to get you to buy prepaid. I don't want to deal with prepaid anything, but that may be a viable option to get a SIM card easily. Just buy a reallllly cheap prepaid phone that has a sim in it, pull the sim and throw it in your global enabled device. Unless you speak Korean, navigating to the headquarters and getting what you want may prove a bit difficult. Fortunately, I do speak Korean, so I will let you know how it goes.
I will update again once I actually have a Sim in my phone!
Thanks for the valuable information so far. I will be arriving there at the end of November and am looking forward to hearing more about how It's going for you there.
Sent from my... Rezound
got a sim, no data!
Finally got a sim from KT Olleh today. The girl at the counter didn't believe me that the phone would work, but I got her to do it anyway. By the way, don't try to set up service for a phone anywhere in Korea on a weekend. They cannot activate a new phone unless its a weekday. So anyway, got it all setup and the girl sits there and plays with my phone for a while without saying anything to me. Then she tells me that the calling and texting is fine but the phone won't get a data signal. I asked her to set the APN, and she said she did. I checked it out and she had put in the KT APN as alwayson.ktfwing.com Looks right to me, and she seemed to know what she was doing for the most part. Then she started to go on about how Korea runs on CDMA for the most part and not GSM yadda yadda.
So, I have a Rezound, working for incoming and outgoing calls and text on KT Olleh, but no data signal at all. I might repost a similar message in another forum topic to see if any gurus have any advice on how to get it working. Also going to do some more research. I'm new to this but there is tons of information out there. I will post again once I have resolution or give up and buy a new phone!
PS Phones in korea can be REALLY expensive. Dropped 850 on my wifes LG phablet (optimus VU2)!!! Equivalent to the instinct in the states I think?
didn't flash twice
So, I am a phone noob, and did a lot of reading last night. Saw that most people flash rezounds twice anytime putting on new firmware etc. I think I will try that tonight and see if I pick up the data signal.
The ruu's generally need to be flashed twice. However I did not need to do so going to the global, the ruu automatically took care of everything.
Sent from my...rezound
website for kt olleh
Some helpful information that KT Olleh has to say about using a non-korean phone in Korea.
http://expatblog.kt.com/71
The rezound may not have the radio frequency that network uses. That would be the main problem as to why you aren't picking up data.
Sent from my ADR6425LVW using xda premium
jonezj said:
Some helpful information that KT Olleh has to say about using a non-korean phone in Korea.
I am currently in Seoul and have rented an Evergreen Mobile Sim Card that works on KT Olleh's network. I am curious as to whether you were ever able to get your Rezound to work with their Data network, and if so, how? Mine works with Olleh Wifi for free but will not even recognize the 3G, despite my having changed the APN settings, and even going to the Evergreen Mobile office in Yeoksa-dong today (they said they couldn't get it to work after an hour of fiddling with it themselves).
Suggestions? Do I have to root?
Oh, and the link in your above post has expired. Could you summarize what KT said?
Thanks!
Click to expand...
Click to collapse
Hello all, so I recently consulted your fine website about purchasing the Optimus G to use on T Mobile here in Pittsburgh. It seemed to me that people were able to get HSPA+21 and LTE on the phone in the right circumstances, and that was good enough for me. So I bought the phone, unlocked it through cellunlocker.com and everything seemed to be going smoothly. I punched in the standard fast.tmobile.com APN address and I got 4G HSPA+ right away. I then proceeded to drive into downtown Pittsburgh, which now has T Mobile LTE, to see if it would connect. It didn't connect and stayed on HSPA. At that point I drove out of the city and went back down to EDGE and my phone no longer connected to HSPA anymore, only EDGE, until I went into my Mobile Network settings and selected the carrier directly. So I went into T Mobile to ask why my phone won't automatically connect to the most OPTIMUM speed and he couldn't figure it out. As a last ditch effort, we switched SIM cards and my phone automically jumped to LTE and his was stuck on HSPA. So hey, we figured it must be the SIM card keeping me from LTE. He gave me a new card, and it was on LTE until I left the store's broadcast radius. From then on, same story. The phone seems to pretty frequently get stuck on EDGE speeds and I contantly have to go and manually set the network to get HSPA+. What's more, I can't seem to get LTE under any circumstances. Can somebody out there please tell me what's going on? Do I have a defective phone with confused radios? Is T Mobile having a hard time syncing with my AT and T device? Do I need to do something with my APN or Mobile Network settings? Does this have anything to do with the way I unlocked the phone? Is it because the LGOG shares radios for LTE and HSPA or something that it won't default to LTE when it's around? I love absolutely everything about this phone and would like to keep it, but if it keeps behaving like this and won't even give me LTE or consistent HSPA+ then I might as well just get a crappy LG Optimus L9 that at least was designed for the network. Any insight you guys can offer would be much appreciated. Thanks so much!
Here are my current APN settings in case that has anything to do with it:
APN: fast.t-mobile.com
Proxy: Not Set
Port: Not set
Username: Not Set
PAssword: Not set
MMS Proxy: Not set
MMS Port: Not Set
MCC: 310
MNC: 260
Authntification: Not set
APN Type: Not Set
Network Operator: Automatically select
Try flashing the 33-84 radio: http://www.mediafire.com/download/wec8eeext05x8ge/LTEhybrid33-84.zip
That's what I use to flash my LGOG. That's from the Nexus 4 radio thread, and from T-Mobile N4 devices. I was able to add a different APN for AT&T easily, maybe can do the same for your T-Mobile.
- Combines the latest .84 radio from T-Mobile N4 and .33 LTE support.
- The N4 Radio thread: http://forum.xda-developers.com/showthread.php?t=2087227
I see. Well seeing as I'm kind of a noob at this your post intimidates me a bit. How dangerous is it to put these N4 radios onto an LGOG? Will I risk bricking this thing or losing signal forever if I screw it up? Also, I'm assuming that the device must be rooted to do this? Also, if you think it's safe to try is there a thread or something that you can link detailed instructions for? I've never done anything like this in my life...I felt like a rebel just unlocking my phone! Thanks!
acshaffe said:
I see. Well seeing as I'm kind of a noob at this your post intimidates me a bit. How dangerous is it to put these N4 radios onto an LGOG? Will I risk bricking this thing or losing signal forever if I screw it up? Also, I'm assuming that the device must be rooted to do this? Also, if you think it's safe to try is there a thread or something that you can link detailed instructions for? I've never done anything like this in my life...I felt like a rebel just unlocking my phone! Thanks!
Click to expand...
Click to collapse
Not dangerous if you use TWRP. Just make a backup of your current stuff, and if it doesn't work can just restore. It won't hard brick your phone. And I've had it flash on more than one rom so far.
Root needed?
zymphad said:
Not dangerous if you use TWRP. Just make a backup of your current stuff, and if it doesn't work can just restore. It won't hard brick your phone. And I've had it flash on more than one rom so far.
Click to expand...
Click to collapse
I see. Will the phone need to be rooted for that app to be used for the radio ROM? That's probably a silly question to ask on this website especially...but there it is.
I just got this phone and I'm loving it..came from the gs3. I was looking for a thread like this...hoping for a way to unlock the aws band..will root and flash tarp and try this tonight.
Sent from my LG-E970 using Tapatalk 4
---------- Post added at 10:13 AM ---------- Previous post was at 10:12 AM ----------
Twrp** darn auto correct..lol
Sent from my LG-E970 using Tapatalk 4
I don't get lte at all with the FAST apn, I get very fast h+ with epc.tmobile.com. It all depends on your area though, if your tmo towers are refarmed for the correct band that our att phones support.
Sent from my LG Optimus G using Tapatalk 4
Jakeroxs said:
I don't get lte at all with the FAST apn, I get very fast h+ with epc.tmobile.com. It all depends on your area though, if your tmo towers are refarmed for the correct band that our att phones support.
Sent from my LG Optimus G using Tapatalk 4
Click to expand...
Click to collapse
So this modem works on our LG optimus g?
Sent from my LG-E970 using Tapatalk 4
would like to know if there's any update, thank you!
I have almost exact same problem. T-mobile lte not working for me, always getting the hspa+. I went to store and asked for a replacement sim card, then bang, lte shows up with the new sim card. Right after I walked out of the store and left in about 1 minute it's gone, forever. I'm not able to pick up any lte signal anymore. When I put this sim card in my ogp, it fires up lte right away.
I have read in another post people reporting they get lte with unactivated sim card but it went right away when they activated it. Really hope someone to explain for us how this situation is happening.
Thank you for all your great work.
---------- Post added at 02:24 PM ---------- Previous post was at 02:15 PM ----------
I couldn't edit my last post so I'm putting a new reply to add some info.
Both my og and ogp have the same apn settings. I tested them using the same sim card.
I just put another unactivated sim card in the og and surprisingly it picks up lte immediately. I don't want to activate this sim card right now so I can't tell if it would go away if I activate it. I hope this info would help a little bit.
qwertyegg said:
would like to know if there's any update, thank you!
I have almost exact same problem. T-mobile lte not working for me, always getting the hspa+. I went to store and asked for a replacement sim card, then bang, lte shows up with the new sim card. Right after I walked out of the store and left in about 1 minute it's gone, forever. I'm not able to pick up any lte signal anymore. When I put this sim card in my ogp, it fires up lte right away.
I have read in another post people reporting they get lte with unactivated sim card but it went right away when they activated it. Really hope someone to explain for us how this situation is happening.
Thank you for all your great work.
---------- Post added at 02:24 PM ---------- Previous post was at 02:15 PM ----------
I couldn't edit my last post so I'm putting a new reply to add some info.
Both my og and ogp have the same apn settings. I tested them using the same sim card.
I just put another unactivated sim card in the og and surprisingly it picks up lte immediately. I don't want to activate this sim card right now so I can't tell if it would go away if I activate it. I hope this info would help a little bit.
Click to expand...
Click to collapse
Help! I have the exact same problem. I have a brand new att lg optimus g and unlocked it. Popped in the sim and bam LTE! Ran a bunch of speedtests, drove to my friends house and it switched to 4g and hasn't come back. The guy at tmobile wasn't sure. ...any help ? I'm going to root this and try flashing a new rom...maybe radio?
Seems to be an issue with this device, perhaps it's doing something to the SIM cards (who the hell knows) because mine did/does the exact same thing, and here's my particular example:
When I first got this LGOG last Sunday (8 days ago) I put my T-Mobile microSIM in it (one of the TM9190 series SIM cards) and got LTE off the bat without any issues. I kept the stock ROM on here for the first day or so and never had any issues and then I got into doing the typical root/unlock bootloader/install recovery/backup stock ROM/flash custom ROM/etc routine and even after that I was still able to get LTE working almost immediately.
A few days ago I noticed that the LTE wasn't being picked up, and it hasn't since. I've flashed several radios for testing (.33, .48, .33-.84 hybrid, etc) and the ones that are LTE ready still didn't get LTE so I just flashed the whole thing back to complete JB stock (JZO54K, the last available LG build) and even that didn't help - I've yet to see LTE show up in any respect at all with that SIM card.
Now the interesting part:
I have another microSIM that had prepaid service a few months back, bought it at the same time as the one I use for my primary service - they were on sale from T-Mobile online for $.99 each so I got two and kept the other one around just to have it.
In spite of all the flashing I've done in the past few days, with like 5 ROMs tested, a kernel or two, and maybe 7 flashes back to pure stock using LGNPST and the LGE970AT-01-V20j-310-410-MAR-08-2013 ROM (the stock one), after all that flashing torture I put this LGOG through, as soon as I put that other SIM card in it - which is not active at this time - and powered up the phone I got an LTE signal right off the bat without a problem. Had already made the APN changes to fast.t-mobile.com so they just kicked right in and wham, 4G LTE right there on the status bar.
And yes, the SIM cards are the same "series" (?!?!) with TM9190 imprinted on both of them - they also have the same code on the front side (620048) and their serial numbers are just a few digits off in sequence - like I said, I bought both of them with the same order so, it stands to reason they'd be from the same batch.
Loaded a few web pages on the T-Mobile prepaid billing site (it's what comes up when you insert a prepaid already activated but not presently in use SIM, very limited but it does work), checked the system stats, everything showed me I was connected to T-Mobile with their LTE service, this phone, and that other SIM card including the status bar icon being the traditional 4G LTE one (big 4, little G, little LTE under it).
Then I rebooted the phone and that was that, the LTE capability just up and vanished like a fart in the wind, and I've done most everything that I could do - including reading a few hundred posts in two dozen threads - to get it functional again and it just doesn't work anymore.
I suppose it's not a big deal to me since T-Mobile's HSPA+ is fine with me, I regularly pull in 10-15Mbps on a speed test in various locations (was out earlier today testing stuff in the eastern parts of Vegas), but I am somewhat pissed that I am unable to get that LTE functionality working again.
Tried:
- a complete stock flash, several times, of the AT&T JB ROM, no dice
- all the currently available LTE-capable radios, no dice
- an AT&T SIM but it's not provisioned so it doesn't work at all (T-Mobile doesn't do that, hrmmm... their SIM cards work months later even after the number has been assigned to another customer, go figure)
- all the hidden menu options (3854#*970#, WCDMA automatic, tried forcing LTE only, several other things), no dice
- tried manually setting LTE only with *#*#4636#*#* using custom ROMs, no dice
- adding the LTE enabling lines to build.prop, no dice
Nothing works, so I'm only left to conclude that either a) T-Mobile is doing something funky (highly unlikely), b) something is borked with the phone (potentially true), or maybe c) the phone is doing something to the SIM cards after a reboot or any change in the network mode from LTE to anything else (leaning towards this possibility more).
I can't explain it, I can't figure it out, and I can't get LTE working anymore but as I said, the HSPA+ is enough for me as here at home the LTE signal is somewhat weak (1-2 bars at best whereas HSPA+ pulls in 5 bars and a -61dB signal almost constantly).
I wish I could figure it out because I'd like to do more testing with LTE enabled but apparently once LTE gets disabled for whatever reason after having it actually working, not once but twice now it just dies and never becomes possible again.
Stranger things I suppose...
If anyone does ever figure this fiasco out, post whatever solution you came up with or discovered so the rest of us can give it a shot as well 'cause I'd love to be able to enable LTE if I so chose. This is pretty frustrating in the long run - if it never ever worked at all that would be one thing, but having it work then suddenly just disappear never to work the same again, that's just pooched.
Slightly off-topic, but how's the battery life compared to AT&T? Or, in general, is it okay?
br0adband said:
Seems to be an issue with this device, perhaps it's doing something to the SIM cards (who the hell knows) because mine did/does the exact same thing, and here's my particular example:
When I first got this LGOG last Sunday (8 days ago) I put my T-Mobile microSIM in it (one of the TM9190 series SIM cards) and got LTE off the bat without any issues. I kept the stock ROM on here for the first day or so and never had any issues and then I got into doing the typical root/unlock bootloader/install recovery/backup stock ROM/flash custom ROM/etc routine and even after that I was still able to get LTE working almost immediately.
A few days ago I noticed that the LTE wasn't being picked up, and it hasn't since. I've flashed several radios for testing (.33, .48, .33-.84 hybrid, etc) and the ones that are LTE ready still didn't get LTE so I just flashed the whole thing back to complete JB stock (JZO54K, the last available LG build) and even that didn't help - I've yet to see LTE show up in any respect at all with that SIM card.
Now the interesting part:
I have another microSIM that had prepaid service a few months back, bought it at the same time as the one I use for my primary service - they were on sale from T-Mobile online for $.99 each so I got two and kept the other one around just to have it.
In spite of all the flashing I've done in the past few days, with like 5 ROMs tested, a kernel or two, and maybe 7 flashes back to pure stock using LGNPST and the LGE970AT-01-V20j-310-410-MAR-08-2013 ROM (the stock one), after all that flashing torture I put this LGOG through, as soon as I put that other SIM card in it - which is not active at this time - and powered up the phone I got an LTE signal right off the bat without a problem. Had already made the APN changes to fast.t-mobile.com so they just kicked right in and wham, 4G LTE right there on the status bar.
And yes, the SIM cards are the same "series" (?!?!) with TM9190 imprinted on both of them - they also have the same code on the front side (620048) and their serial numbers are just a few digits off in sequence - like I said, I bought both of them with the same order so, it stands to reason they'd be from the same batch.
Loaded a few web pages on the T-Mobile prepaid billing site (it's what comes up when you insert a prepaid already activated but not presently in use SIM, very limited but it does work), checked the system stats, everything showed me I was connected to T-Mobile with their LTE service, this phone, and that other SIM card including the status bar icon being the traditional 4G LTE one (big 4, little G, little LTE under it).
Then I rebooted the phone and that was that, the LTE capability just up and vanished like a fart in the wind, and I've done most everything that I could do - including reading a few hundred posts in two dozen threads - to get it functional again and it just doesn't work anymore.
I suppose it's not a big deal to me since T-Mobile's HSPA+ is fine with me, I regularly pull in 10-15Mbps on a speed test in various locations (was out earlier today testing stuff in the eastern parts of Vegas), but I am somewhat pissed that I am unable to get that LTE functionality working again.
Tried:
- a complete stock flash, several times, of the AT&T JB ROM, no dice
- all the currently available LTE-capable radios, no dice
- an AT&T SIM but it's not provisioned so it doesn't work at all (T-Mobile doesn't do that, hrmmm... their SIM cards work months later even after the number has been assigned to another customer, go figure)
- all the hidden menu options (3854#*970#, WCDMA automatic, tried forcing LTE only, several other things), no dice
- tried manually setting LTE only with *#*#4636#*#* using custom ROMs, no dice
- adding the LTE enabling lines to build.prop, no dice
Nothing works, so I'm only left to conclude that either a) T-Mobile is doing something funky (highly unlikely), b) something is borked with the phone (potentially true), or maybe c) the phone is doing something to the SIM cards after a reboot or any change in the network mode from LTE to anything else (leaning towards this possibility more).
I can't explain it, I can't figure it out, and I can't get LTE working anymore but as I said, the HSPA+ is enough for me as here at home the LTE signal is somewhat weak (1-2 bars at best whereas HSPA+ pulls in 5 bars and a -61dB signal almost constantly).
I wish I could figure it out because I'd like to do more testing with LTE enabled but apparently once LTE gets disabled for whatever reason after having it actually working, not once but twice now it just dies and never becomes possible again.
Stranger things I suppose...
If anyone does ever figure this fiasco out, post whatever solution you came up with or discovered so the rest of us can give it a shot as well 'cause I'd love to be able to enable LTE if I so chose. This is pretty frustrating in the long run - if it never ever worked at all that would be one thing, but having it work then suddenly just disappear never to work the same again, that's just pooched.
Click to expand...
Click to collapse
Thanks for posting your experiences. I've had the exact same problem, though I've never been able to get LTE working at all with my phone. I'm planning on taking a trip to a T-Mobile location within the next few days and see what they can do. Maybe they'll let me try putting my SIM in some of their display phones to see if I can get an LTE connection. Then at least I could probably rule out the SIM as the problem.
643121 said:
Thanks for posting your experiences. I've had the exact same problem, though I've never been able to get LTE working at all with my phone. I'm planning on taking a trip to a T-Mobile location within the next few days and see what they can do. Maybe they'll let me try putting my SIM in some of their display phones to see if I can get an LTE connection. Then at least I could probably rule out the SIM as the problem.
Click to expand...
Click to collapse
Make sure that your phone has the fast.t-mobile.com APN info in place (just create a new APN with that info if needed, maybe call it T-Mobile LTE and see what happens. My guess is if they put a new unused SIM into your phone it'll most likely kick into 4G LTE right from the start (as long as the APN is in place) and then at some point it'll switch to HSPA+ and it'll never go back like it has for those of us that have noticed it.
Who knows... it's probably just one of those things.
br0adband said:
Make sure that your phone has the fast.t-mobile.com APN info in place (just create a new APN with that info if needed, maybe call it T-Mobile LTE and see what happens. My guess is if they put a new unused SIM into your phone it'll most likely kick into 4G LTE right from the start (as long as the APN is in place) and then at some point it'll switch to HSPA+ and it'll never go back like it has for those of us that have noticed it.
Who knows... it's probably just one of those things.
Click to expand...
Click to collapse
Could be...I've always had my settings on T-Mobile LTE, and I even called T-Mobile and confirmed every field in the settings with them. When I explained that I still couldn't get LTE, they had no other solution for me. The lady on the line didn't even know that LTE was faster than HSPA+, so I wasn't exactly expecting any sort of resolution. I think the reps in-store will be more suited to this type of issue.