Develop Bugs

Will a sprint galaxy nexus work in India?

I've got a photon that I can fall back on but I hugely prefer my JB-powered gnex... just trying to understand if it is compatible with the networks in India (Mumbai specifically).
Thanks!
Jeff
Sent from my GT-P7510 using Tapatalk 2

HiBoost said:
I've got a photon that I can fall back on but I hugely prefer my JB-powered gnex... just trying to understand if it is compatible with the networks in India (Mumbai specifically).
Thanks!
Jeff
Sent from my GT-P7510 using Tapatalk 2
Click to expand...
Click to collapse
are you going to be using a GSM network and have a GSM galaxy nexus? if so, yes it should work.

Sprint no, its CDMA.
Sent from my Galaxy Nexus using Tapatalk 2

I've read that there is cdma service in India, but is it some other frequency or something that makes it incompatible?
Sent from my Galaxy Nexus using Tapatalk 2

Just to finalize this thread, the Sprint Galaxy Nexus DOES work here in Mumbai. No problems or special settings needed. CDMA signal is significantly stronger than it is back in the states which is quite pathetic (on Sprint's behalf).

Wow I learned something new, I had no idea India had CDMA.

HiBoost said:
Just to finalize this thread, the Sprint Galaxy Nexus DOES work here in Mumbai. No problems or special settings needed. CDMA signal is significantly stronger than it is back in the states which is quite pathetic (on Sprint's behalf).
Click to expand...
Click to collapse
What network are you using it on? I am going to India later this year and it would be awesome if I would be able to use my GNEX (Verizon) there. I would be in Gujarat for the most part.

super_dk said:
What network are you using it on? I am going to India later this year and it would be awesome if I would be able to use my GNEX (Verizon) there. I would be in Gujarat for the most part.
Click to expand...
Click to collapse
I'm not even sure what the network is because this isn't anything I had to buy a SIM card for... I just turned the phone on and it popped up "Mumbai" on the screen, showed full strength (with the "R" by the bars for roaming), and sent me a text message saying voice was $2.49/min, incoming text is $0.05 and outgoing is $0.50 and data is $0.008/kb. I just used 3G watchdog to turn off mobile data completely. The guys here tell me that CDMA and GSM are both built up everywhere. It's pretty crazy to be driving in a cab through an area where people aren't even wearing shoes and there's stray dogs running through the street and I have 5 bars of signal. Yet back in the US I have 1-2 half the time... dammit Sprint really sucks.

HiBoost said:
I'm not even sure what the network is because this isn't anything I had to buy a SIM card for... I just turned the phone on and it popped up "Mumbai" on the screen, showed full strength (with the "R" by the bars for roaming), and sent me a text message saying voice was $2.49/min, incoming text is $0.05 and outgoing is $0.50 and data is $0.008/kb. I just used 3G watchdog to turn off mobile data completely. The guys here tell me that CDMA and GSM are both built up everywhere. It's pretty crazy to be driving in a cab through an area where people aren't even wearing shoes and there's stray dogs running through the street and I have 5 bars of signal. Yet back in the US I have 1-2 half the time... dammit Sprint really sucks.
Click to expand...
Click to collapse
Thanks. I thought you changed the sim card to use it on one of the Indian networks. They do have good coverage in Urban areas both CDMA and GSM. I noticed that last year when I went there and my OG droid came up with a signal and an R just like yours. I did not use it however because of the high rates.

Working LTE flashed Galaxy S3

Hows everyone doing, like anyone who has this phone I am also waiting on lte. Im actually in South Fl where they are working on LTE service currently some of my friends actually say that they drive around and sometimes are able to connect to 4g,all who are under sprint actually. I just wanted to know if anyone who has a flashed device via boost,metropcs,veizon,etc has any luck picking up 4g lte service on there device in the few areas that sprint has 4G,any feedback would be greatly appreciated.Hopefully I can though when its fully launched I actually saw a video that devices that has not yet been activated was able to use LTE service by qbking77.
www.youtube.com/watch?v=iCp9BDNz4B4

brianhot1 said:
Hows everyone doing, like anyone who has this phone I am also waiting on lte. Im actually in South Fl where they are working on LTE service currently some of my friends actually say that they drive around and sometimes are able to connect to 4g,all who are under sprint actually. I just wanted to know if anyone who has a flashed device via boost,metropcs,veizon,etc has any luck picking up 4g lte service on there device in the few areas that sprint has 4G,any feedback would be greatly appreciated.Hopefully I can though when its fully launched I actually saw a video that devices that has not yet been activated was able to use LTE service by qbking77.
www.youtube.com/watch?v=iCp9BDNz4B4
Click to expand...
Click to collapse
If you are flashes to another carrier I don't think you'll be able to use LTE
Sent from my SPH-L710 using xda app-developers app

budde2 said:
If you are flashes to another carrier I don't think you'll be able to use LTE
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
thanks for your input,are you in an area that supports LTE as of yet?

budde2 said:
If you are flashes to another carrier I don't think you'll be able to use LTE
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I was wondering the same since there is a 4G hack for the ET, is there a hack for the LTE mac address, that would allow access to Sprint 4G LTE
Example: I am flashed to Boost on my Sprint ET, but using my friends Sprint ET 4G mac address for 4G access.
That is one thing keeping me from switching to the S3 cause I will lose 4G.

Yep I actually still have my s2 I'm using it as a walking hotspot

as far as I know.. there is no public info available on accomplishing this. I can't say it's not possible.. because everything is in some way or another.. but LTE is much more difficult than WiMax.
WiMax allows anyone and everyone to connect to the tower. Then, depending on your MAC address, you could browse the web... or be redirected to a sign-up portal. there are even ways to get through the portal without a valid MAC by using VPN connections etc.. the DNS port on the portal page is wide open.
This next part I'm not 100% sure on... still an LTE n00b to be honest.. with no LTE in my area to test things. But.. afaik... LTE is "similar" to GSM. It is based on SIM cards(actually a UICC card). On a Sprint LTE phone in settings you will see a ICCID number.. this is the embedded sim cards ID number. On a true lte system(ATT/VZW) the UICC is programmed OTA with all the needed credentials to connect you... for voice/text/3g/4g. On Sprint, it's more of a hybrid setup. It's still using the CDMA base... where the phone relies on the EFS/NV for calls/text/3g... then it uses the embedded sim(eUICC) to handle the 4G LTE side of things.
I have not found any good Sprint documentation on how their LTE authentication works. I'm not sure if it is OTA provisioning info onto the eUICC... which would make LTE hacking pretty impossible. Or maybe Sprint got lazy and is just using some kinda of MEID/ICCID pairing(sort of like the meid/wimax mac pairing)... which will whitelist an ICCID if its paired MEID if activated on an LTE plan. If the later is true, perhaps the ICCID could be spoofed to a valid one? But I doubt they got that lazy.
Other exploits could be possible.. something that gets around the current provisioning system.. but something like that may never reach the publics eye. Sim cloning is also possible.. but that would require hardware capable of reading a sim and rewriting... not impossible I suppose, but most likely expensive.
I wouldn't get my hopes up about this being possible. There is a very slim change anything like this could be pulled off. Those in Wimax coverage may be using the last hackable "4G" network.
*edit*
as for the qbking video.. I'm not 100% sure, but I was under the impression each of those phones had been previously activated... and that some glitch in the system allowed them to still work.. kinda like when you swap phones on Sprint and 3G still works for a day or so. It's also possible the tower was set up to allow all connections to test things(for a few days at most). Again.. I'm just guessing. Does anyone know if he can still replicate those results?

autoprime said:
as far as I know.. there is no public info available on accomplishing this. I can't say it's not possible.. because everything is in some way or another.. but LTE is much more difficult than WiMax.
WiMax allows anyone and everyone to connect to the tower. Then, depending on your MAC address, you could browse the web... or be redirected to a sign-up portal. there are even ways to get through the portal without a valid MAC by using VPN connections etc.. the DNS port on the portal page is wide open.
This next part I'm not 100% sure on... still an LTE n00b to be honest.. with no LTE in my area to test things. But.. afaik... LTE is "similar" to GSM. It is based on SIM cards(actually a UICC card). On a Sprint LTE phone in settings you will see a ICCID number.. this is the embedded sim cards ID number. On a true lte system(ATT/VZW) the UICC is programmed OTA with all the needed credentials to connect you... for voice/text/3g/4g. On Sprint, it's more of a hybrid setup. It's still using the CDMA base... where the phone relies on the EFS/NV for calls/text/3g... then it uses the embedded sim(eUICC) to handle the 4G LTE side of things.
I have not found any good Sprint documentation on how their LTE authentication works. I'm not sure if it is OTA provisioning info onto the eUICC... which would make LTE hacking pretty impossible.. or if Sprint got lazy and is just using some kinda of MEID/ICCID pairing(sort of like the meid/wimax mac pairing)... which will whitelist an ICCID if its paired MEID if activated on an LTE plan. If the later is true, perhaps the ICCID could be spoofed to a valid one? But I doubt they got that lazy.
Other exploits could be possible.. something that gets around the current provisioning system.. but something like that may never reach the publics eye. Sim cloning is also possible.. but that would require hardware capable of reading a sim and rewriting... not impossible I suppose, but most likely expensive.
I wouldn't get my hopes up about this being possible. There is a very slim change anything like this could be pulled off. Those in Wimax coverage may be using the last hackable "4G" network.
Click to expand...
Click to collapse
Thanks autoprime that means alot coming from you, and as far as with the authentication procedure, any idea on how phones were able to connect to lte that has not yet been activated? So you think Sprint recognized the problem and patched it with software updates? That's what really gave me hope to think it would all be possible

brianhot1 said:
Thanks autoprime that means alot coming from you, and as far as with the authentication procedure, any idea on how phones were able to connect to lte that has not yet been activated? So you think Sprint recognized the problem and patched it with software updates? That's what really gave me hope to think it would all be possible
Click to expand...
Click to collapse
check out the lil edit i made at the end of my initial post.. regarding the qbking situation. there was not enough info there for me to know exactly what was going on in his exact situation. but its very possible, as i mentioned above, that the lte towers had some kind of "accept all" flag while they were testing it.. who knows. If it's still able to be replicated by qbking.. then I would say there might be a loophole.
i will say tho.. ive never had the chance to personally test out lte. all i have to go by are documents i've read.. and other users experience. once i get it in my hands.. maybe something will change. trust me.. i'm looking into this.. and will continue to do so :good:

autoprime said:
check out the lil edit i made at the end of my initial post.. regarding the qbking situation. there was not enough info there for me to know exactly what was going on in his exact situation. but its very possible, as i mentioned above, that the lte towers had some kind of "accept all" flag while they were testing it.. who knows. If it's still able to be replicated by qbking.. then I would say there might be a loophole.
i will say tho.. ive never had the chance to personally test out lte. all i have to go by are documents i've read.. and other users experience. once i get it in my hands.. maybe something will change. trust me.. i'm looking into this.. and will continue to do so :good:
Click to expand...
Click to collapse
O okay thanks, I'm going to be looking into it myself as well

I wonder if this would help
Sent from my SPH-L710 using xda premium

Those settings are from anycut
Sent from my SPH-L710 using xda premium

Would those screen shots be helpful?
Sent from my SPH-L710 using xda premium

Works the screenshots be useful?
Sent from my SPH-L710 using xda premium

Okay so I am able to connect to lte but by default I'm not able to browse anyone good with uiccid and lte? My pic shows that my device was connected to lte but as you can see no 4g icon
Sent from my SPH-L710 using xda premium

This is what it looks like when connected to 3g as you can see the network clearly shows that.I removed my username for obvious reasons
Sent from my SPH-L710 using xda premium

Anyone?
Sent from my SPH-L710 using xda premium

Toggle airplane mode on and off make sure data is not turned off because it should still show either 3g or 4G not blank like your picture.
Transmitted with a portable device using Xparent Blue Tapatalk 2

I have done that and manually disconnected mobile data, it does that because the phone is connecting to 4g lte tower, the thing is that I don't believe the iccid number of not authenticating so that's why the 4g is not popping up
Sent from my SPH-L710 using xda premium

Have you tried updating profile and prl?
Transmitted with a portable device using Xparent Blue Tapatalk 2

brianhot1 said:
I have done that and manually disconnected mobile data, it does that because the phone is connecting to 4g lte tower, the thing is that I don't believe the iccid number of not authenticating so that's why the 4g is not popping up
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
Has anyone figured out how to get LTE working on a sprint S3 flashed to boost? Boost offers LTE now so there has to be some way to get a S3 to authenticate on LTE while on a boost account. Ive looked everywhere and cant find diddly squat.

[Q] LTE Clarification please

I've been seeing a lot of LTE buzz going around in the tmo GN2 forums and I want to get some clarification.
My understanding is that there are two versions of the T-Mobile Galaxy Note II: SGH-T889 and the SGH-T889V, with the latter being LTE-enabled. I have the SGH-T889. The buzz leads me to believe that the regular SGH-T889 does have dormant LTE capabilities which can be activated by flashing the newest radio. Is this true? Or is it only the SGH-T889V that has LTE?
I purchased this phone fully expecting zero LTE capability. All I really wanted was ~15Mbps, and HSPA+ typically delivers between 13-18Mbps depending on recenption in my area, so I'm pretty satisfied. However, I believe T-Mobile does have LTE in my area, so if my phone does have LTE capabilities that can be activated, that would be a nice bonus.

jerm1027 said:
I've been seeing a lot of LTE buzz going around in the tmo GN2 forums and I want to get some clarification.
My understanding is that there are two versions of the T-Mobile Galaxy Note II: SGH-T889 and the SGH-T889V, with the latter being LTE-enabled. I have the SGH-T889. The buzz leads me to believe that the regular SGH-T889 does have dormant LTE capabilities which can be activated by flashing the newest radio. Is this true? Or is it only the SGH-T889V that has LTE?
I purchased this phone fully expecting zero LTE capability. All I really wanted was ~15Mbps, and HSPA+ typically delivers between 13-18Mbps depending on recenption in my area, so I'm pretty satisfied. However, I believe T-Mobile does have LTE in my area, so if my phone does have LTE capabilities that can be activated, that would be a nice bonus.
Click to expand...
Click to collapse
Flash the radio
Carbon Nightly | Kroz Hhue Theme | Crack Flasher

jerm1027 said:
I've been seeing a lot of LTE buzz going around in the tmo GN2 forums and I want to get some clarification.
My understanding is that there are two versions of the T-Mobile Galaxy Note II: SGH-T889 and the SGH-T889V, with the latter being LTE-enabled. I have the SGH-T889. The buzz leads me to believe that the regular SGH-T889 does have dormant LTE capabilities which can be activated by flashing the newest radio. Is this true? Or is it only the SGH-T889V that has LTE?
I purchased this phone fully expecting zero LTE capability. All I really wanted was ~15Mbps, and HSPA+ typically delivers between 13-18Mbps depending on recenption in my area, so I'm pretty satisfied. However, I believe T-Mobile does have LTE in my area, so if my phone does have LTE capabilities that can be activated, that would be a nice bonus.
Click to expand...
Click to collapse
889 is tmo, 889V is americas hat (canadian)
You are correct in believing that 889 has dormant lte capabilities.
Search for teshs thread and upgrade ur modem.
http://forum.xda-developers.com/showthread.php?p=37329397
[ROM][STOCK][4.1.2][T889] XXDMA6 || Deodexed & Odexed, Rooted, Busybox [01/28/13]
Sent from my SGH-T889 using XDA Premium HD app

Thanks for the clarification! Will flash the newest modem.

Reviving my own thread here, but I need some LTE clarification, part 2.
So, I'm in San Jose, which is suppose to be one of T-Mobile's LTE markets, and I have the latest modem (UVBMB4) running Sons of Android build 4. My network mode is set to "LTE/GSM/WCDMA", but I don't see any indication that I'm connected to LTE. My status icon is still H/H+, but one of the known issues is that the icon can be "wonky". Is there anyway to confirm wether or not I am connected to LTE?

jerm1027 said:
Reviving my own thread here, but I need some LTE clarification, part 2.
So, I'm in San Jose, which is suppose to be one of T-Mobile's LTE markets, and I have the latest modem (UVBMB4) running Sons of Android build 4. My network mode is set to "LTE/GSM/WCDMA", but I don't see any indication that I'm connected to LTE. My status icon is still H/H+, but one of the known issues is that the icon can be "wonky". Is there anyway to confirm wether or not I am connected to LTE?
Click to expand...
Click to collapse
if you get lte is will show 4g in the status bar since ur on cm

deeznutz1977 said:
if you get lte is will show 4g in the status bar since ur on cm
Click to expand...
Click to collapse
I don't see 4G, just H/H+. Any idea what I'm doing wrong here?
Sent from my SGH-T889 using xda-developers app

jerm1027 said:
I don't see 4G, just H/H+. Any idea what I'm doing wrong here?
Sent from my SGH-T889 using xda-developers app
Click to expand...
Click to collapse
Nothing you don't have lte where your at
Sent from my SGH-T889 using Tapatalk 2

deeznutz1977 said:
Nothing you don't have lte where your at
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
I find that hard to believe. Again, San Jose is suppose to have LTE, and it has been reported to reach Fremont, which is 20 minutes from where I live in (North) San Jose.
One thing I've noticed, if I have the LTE option enabled, I'll lose all data connection after the phone sleeps a while. In order to restore data, I have disable LTE, and reset the radio (enable then disable Airplane mode).
I'm fairly convinced it's a software bug or configuration issue, but I suppose I could be in an LTE dead-zone. I also doubt that, since I live in a fairly open area, and cell phone reception has never been an issue for me, not CDMA, GSM, HSPA, or WiMAX, which was notorious for spotty reception. Not to mention, according to OpenSignal, it works down the street from where I live.
http://opensignal.com/reports/t-mobile-lte-rollout/

Why dont you go/call near by tmobile store and check.
Sent from my SGH-T889 using xda premium

jerm1027 said:
I find that hard to believe. Again, San Jose is suppose to have LTE, and it has been reported to reach Fremont, which is 20 minutes from where I live in (North) San Jose.
One thing I've noticed, if I have the LTE option enabled, I'll lose all data connection after the phone sleeps a while. In order to restore data, I have disable LTE, and reset the radio (enable then disable Airplane mode).
I'm fairly convinced it's a software bug or configuration issue, but I suppose I could be in an LTE dead-zone. I also doubt that, since I live in a fairly open area, and cell phone reception has never been an issue for me, not CDMA, GSM, HSPA, or WiMAX, which was notorious for spotty reception. Not to mention, according to OpenSignal, it works down the street from where I live.
http://opensignal.com/reports/t-mobile-lte-rollout/
Click to expand...
Click to collapse
Just because they say you have LTE in your area doesn't mean it's fully up and operational just yet. T-mobile is still working on getting ALL the towers upgraded for LTE. Give it time and you'll probably see LTE start popping up more and more.
And before you make comments about how they should have been prepared blah blah blah; go check the LTE thread because it's been done MANY times.

Anyone using this phone on ATT

I understand that this phone has the same hardware and supports the ATT LTE bands. I am done with locked bootloaders, I need confirmation someone is using this phone on ATT Network w LTE successfully without any hacks..
Any other feedback will be great (call quality, radio performance on ATT network)
Seriously pondering getting the T-MO version. I am hoping I can get one off contract.
TIA

I am currently using the phone on at&t. LTE works. Just make sure you set your APN right. I just disabled WiFi calling because it is not supported.
Sent from my SGH-M919 using xda app-developers app

Yes I am. I had to add the apn and then choose lte in the network section. Works great though.
Sent from my HTC One using Tapatalk 2

Same here. Rooted, unlocked and running very smoothly, no lag at all.
Just need to get a case for it.
Sent from my SGH-M919 using Tapatalk 2

what is the apn setting bc im looking to switch to t mobile with the s3 att

I am NOT able to get this to work at all on mine. I am unlocked, rooted and I am using a red pocket sim that uses AT&T towers.
Any suggestions?

Did you get an unlock code from tmo, a 3rd party, or some sort of debug method a la s3 and note 2?

muqali said:
Did you get an unlock code from tmo, a 3rd party, or some sort of debug method a la s3 and note 2?
Click to expand...
Click to collapse
I'm considering buying the TMO variant to use on AT&T as well and I have a few questions related to this topic:
Would service reception be restricted to just LTE or can the T-Mobile S4 still receive AT&T's E, 3G, etc as well when used on AT&T's network?
Also, and I'm sure this is dependent on the answer to my first question, would the T-Mobile S4 work with the AT&T 3G Microcell?

Whos Lte is faster tmobiles or att.
Sent from my SGH-M919 using xda app-developers app

rp56 said:
Whos Lte is faster tmobiles or att.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
hard to answer; it really depends on the area, but for the most part im pretty confident in saying t-mobiles LTE is faster.
see attached photo

I've been using the T-Mobile version on AT&T for a few days. I unlocked using the debug menu instructions in this forum, setup the AT&T LTE APN and set the preferred network to LTE. It works fine on LTE, hspa, etc.
Speed test results were 53Mb down, 19Mb up, 66ms ping in Raleigh, NC.
I gave away my microcell with my POS iPhone because the Samsung phones performed OK without it. So, I can't answer whether the T-Mobile version will work correctly with a microcell.
Sent from my SGH-M919 using Tapatalk 2

Help please...
Hi all,
I have a Galaxy S4 I9500, I keep my brightness at full all the time. When I finish playing games even "subway surfer" for 10 minutes, and exit to the desktop, I find that brightness is lowered alittle bit & increase gradually to the previous state which is full brightness (from 5 to 10 seconds). Could this be a result of that when playing games, the device uses the 1.6 quad core CPU and upon exit it takes alittle time (those 5 to 10 seconds) to shift to the 1.2 quad core CPU?
Really need your help.
Thanks alot.

So it seems this is the perfect phone to use on AT&T due to all that bootloader problems and crap on the AT&T version.

So folks still running fine without issues with this device on AT&T's network? I know LTE bands over lap so those are fine and the specs for the other frequencies all line up too but any problems with any data or voice stuff at this point after more time has passed? Including text and media messaging?

Screwbal said:
So folks still running fine without issues with this device on AT&T's network? I know LTE bands over lap so those are fine and the specs for the other frequencies all line up too but any problems with any data or voice stuff at this point after more time has passed? Including text and media messaging?
Click to expand...
Click to collapse
I had left an area with LTE coverage before I was able to network unlock, so I can't comment as to how LTE is working... but I've had no problems using it on Edge or 3G, texting/mms, etc. It even works flawlessly on my Microcell with no modifications other than the network unlock.

mohan_kr said:
I understand that this phone has the same hardware and supports the ATT LTE bands. I am done with locked bootloaders, I need confirmation someone is using this phone on ATT Network w LTE successfully without any hacks..
Any other feedback will be great (call quality, radio performance on ATT network)
Seriously pondering getting the T-MO version. I am hoping I can get one off contract.
TIA
Click to expand...
Click to collapse
Mohan,
Which phone are you getting? The T-mobile version or the Google S4? I read online that the Google version of S4 is the same as the T-mobile version. I'm a T-mobile customer but I want to follow you using the Embryo rom on your new phone selection and hopefully get wifi-calling feature. I'm currently using the Embryo rom on my T989. Thanks.

adding an APN ... issues
lemme ask what will undoubtedly be a noob question. i've unlocked my T-Mo S4. confirmed. i popped in my AT&T iPhone 5's SIM card and boot up. i see that i have a signal, am able to make and receive phone calls. but no data. when i look at the APN, i'm seeing Cingular APN. what gives? i thought the phone would auto-detect and attach to the correct APN and i'd be good-to-go. thoughts? do i need to manually add the APN? I have all of the info necessary. when i try to add the APN, i am able to get to the proper menu, add all of the info. however, when i try to "save" the info, it never shows up as an APN for me to select. so whatever info i've just entered was never saved.
help!

Phone wont connect to 3g when set to CDMA\LTE\EVDO mode

I have an interesting issue. My wife and I both have Note II's. I have a grey one, she has a white one. Both are on the latest Stock Rom and rooted, same kernel and modem revisions. Both phones on the dreaded 2000 PRL (Havent got around to flashing another one because we have an Airave 2.5)
My phone will not connect to 3g at all when I have LTE enabled. The other phone connects to 3G just fine with LTE enabled.
I have another friend that only sporadically connects to 3g with LTE enabled. If I set the phones that wont stay connected to 3G to CDMA mode everything is fine.
Any ideas?

Try automatic?
Sent from my SPH-L900 using Tapatalk 2

Does this happen around the airave? Airaves are known to cause a host of isues with rooted phones even with no custom roms
Sent from my SPH-L900 using xda app-developers app

The only way to get 3g when lte is enabled is when you lose lte sinal is you just want to use 3g set it to cdam mode only if you set it to lte
Sent from my SPH-L900 using xda app-developers app

Cdma only or global
I was reading some other sites and threads after I encountered a problem almost just like this because I had switched my signal type while on AOSP.
I discovered that because our phone are global they have different connection setting and in short when you switch to either global mode or CDMA only, and try to go back to lte evdo the phone will roam constantly and will not be able to reconnect to lte. So while I was trying to fix my LTE I managed to force my LTE on but I wasnt getting any cdma or evdo. finally I got everything back to normal by flashing a back to stock rom and doing a hands free activation.

I'm also have an overwhelming time with 3g. I have no lte in my area but have tried both CDMA only and CDMA/let settings. My 3g is on and off within 1 minute intervals or hours at a time. I pretty much have no data connection 95% of the day, until I get home from work and can hit WiFi.
I'm just stock rooted on MC2 and also on prl 2000.
I've been on the phone with sprint for days trying to figure this out or get them to waive my ETF. I refuse to keep paying for service when I am not getting any. It's bad enough they don't have 4G much less LTE here, but I can't continue to do these sub par dialup speeds to no speeds.
Any other tips to try would be greatly appreciated. As sprint says everything is fine in my area...
Go figure.
Sent from my SPH-L900 using Tapatalk 2

Yeah, same problem here. Somehow after rooting the phone i completely lost 4G LTE connectivity. Now everywhere i go it's only on 3G or EvDo Rev-8 which sucks. I think the only way of fixing toys issue is to Unroot and go back to stock ROM.
After doing a lot of research on the matter that is the only solution right now to our 4G LTE catastrophe. :thumbdown:
Sent from my SPH-L900 using xda app-developers app