Develop Bugs

3G Problems Non Sprint

Hi i'm not sprint user, i'm using different provider in my country
i have 3G all the time (doesn't have LTE here yet), voice call and sms working. But my 3G speed is really2 slow, somehow my speed is capped to 50kb/s normally i can get 200kb/s in my area. i have samsung s1 CDMA here with same provider and there's no problem. i ned patch for custom ROM but not with stock ROM
Some said that because sprint lock my EVDO if i'm using different carrier. The carrier provider here not to friendly so i cannot ask for their help :laugh: . is there any way to unlock that?
I Already tried ##RTN# and i have trouble to enable my voice call and sms , and i already tried to zero my EFS still no go
Doing a little research, my AN-AAA status is pending in DEBUG. I already tried LG service Menu to set "undetermined" but somehow the setting is not stick, after reboot, the 3 option there just blank are that normal? my parameter for data stick tough
APN modifying not helping, what ever i input i still have 3G
To be more clear i'm from indonesia, using smartfren carrier.
Maybe i can get more clue from you guys non sprint user. and helping other user :victory:
Thanks, and sorry for my bad english :angel:

[DOMESTIC][UNLOCK] Domestic GSM confirmed working on some AOSP roms

I can confirm that you no longer need to use the much outdated CM11 T-Mobile ROM, T-Mobile Stock ROM or the RayGlobe Flex ROM in order to use a USA domestic sim such as T-Mobile. I noticed that the BUILD.PROP on the T-Mobile CM11 ROM has some enabled goodies which do not come on the default CM11 for the LS980. That made me wonder what if I use a unified ROM (built for all variants) instead of the ROMs available on the Sprint G2 section? The build.prop there will still include capabilities for GSM devices, which CyanogenMod seems to strip in order to avoid switching to GSM (correct me if I am wrong). Anyways I gave it a go using the LS980 Bliss Pop ROM based on 5.1, which is found in the non-carrier specific section of the G2 Android Development, and sure enough I was back to being a Sprint device. Using the dialer, I accessed the Testing menu by dialing *#*#4636#*#*, switched to WCDMA preferred, and it seemed to have revert. Then I clicked WCDMA only and it stuck and I could see my signal bars changing. THEN I switched it to GSM/LTE and FINALLY HSPA+ appeared. Calls, texts, data, it all works as the APNs were already auto selected. MMS DOES NOT WORK. I've been using it like this for the past couple of hours and no issued so far. I cannot remember if I did the official unlock available on our section of XDA as I've had quite a few of the Sprint version on and off, but I really do not see what role that plays in the matter. If it doesn't work for you, then you probably do need to use the official unlock.
***Again, if my theory is correct, this should work only on unified ROMs, which are ROMs compiled for all/multiple variants.
It never worked for me on stock CyanogenMod ROMs for the LS980, thus my theory. Another theory I have is that since Sprint now allows domestic unlocks, these phones may be free to enter the domestic side if you can get them to recognize a domestic sim...
If you want pictures/proof, ask, its about 5am in my time zone and I'm too lazy to take them and upload them.
If you want to force HSPA+ instead of HSPA, use the "HSPA+ Tweaker" app found in the Play Store.
If you feel like this is good news since you use this device on a carrier other than Sprint, remember to thank me.
If you are in another country and are willing to experiment, try it and I'll update my OP as soon as I can.
If you have already mentioned this in another thread, this is my own thread, started so that others can see it easier rather than having to accidentally stumble across yours in another thread.
EDIT: Can confirm it works on other AOSP ROMs. When switching network modes, you must have a stable data connection or else it will automatically try to connect to Sprint towers.
MMS DOES NOT WORK!

Outside the usa GSM sims works perfect on every not SPRINT rom (stock based like cloudy or optimus, or AOSP/CM based)
_____________________________________Read more write less and be smart

siggey said:
Outside the usa GSM sims works perfect on every not SPRINT rom (stock based like cloudy or optimus, or AOSP/CM based)
_____________________________________Read more write less and be smart
Click to expand...
Click to collapse
Thus the first word in the title of this thread is "Domestic". Back then, you couldn't get a USA sim working with those AOSP based ROM, heck you couldn't even use it if the rom wasnt modified to spoof the T-Mobile version, see for yourself the domestic "unlocked" roms I mentioned above show your device as a D801. There has always been the international unlock which can be used even on stock, but that wouldn't help USA users.

Straight Talk data issues with custom roms using 4g LTE Verizon sim

Greetings everyone!
Signed up so that I can hopefully help someone else in need with their LG G3 phone using the Straight Talk 4G LTE Verizon sim card.
After many hours of flashing roms and trying out various things, it turns out for some reason other variants of the stock roms like Bliss Pop, CoudyG3, and Skydragon will not work with the data. I can still use my phone and make calls and i can still get text messages and even pictures sent through text messages, but for the life of me data would NOT work.
The only rom that did work again was the Jasmine rom. To my understanding it works pretty close to the stock verizon rom that comes with the LG G3. After the flash, BOOM! Everything worked and data came back to life.
I noticed the APN settings is very very different but this rom wont let you go in it to see it's settings. Surely there is a way to import/export the APN data to push on over to another custom rom? Just weird that after putting this specific custom rom data happily worked again.
BTW, if anyone tries to activate a verizon lg g3 with straight talk, be careful. Though their stupid website said that the phone was already registered with another tracfone provider/service, I was still able to get the phone to work. If after entering your MEID/EMI or whatever the numbers are and the straight talk website spits it back out at you, CALL straight talk. I got screwed and used up the network access code which somehow got lost into oblivion, but turns out that they themselves can manually add the Verizion 4G LTE sim card with the network access code card. (I bought the 4g LTE sim card package from wal mart). As long as the phone is in good standing, it will work!
Thanks. Hope this helps someone else out trying to get it to work with straight talk. I will try and see if there is a way to export this APN setting. I was told by straight talk that you don't need an APN set, but i think they are lying.
Peace!

solved
Back again,
Happy to report im using skydragon Rom with straight talk. Turns out you do in fact need to set the apn in the settings. Just add this apn
acct.tf.gw6.vzwentp
This is the apn for the Verizon 4g lte sim card when you use it. I didn't have to reset the phone but now data works great.

Hey question. I have a Straight Talk S3 currently running CM 11 kitkat based rom and things work great but I found other roms I want to install one of them being a Pac-Man custom rom but I have no data. I have a Verizon CDMA 4G LTE sim coming in acouple days just need the apn settings. Could anyone help me out with this? Thanx in advance for any help.
Sent from my SCH-S968C using xda premium

Surely it is the same APN setting as above. Try it out once you get your Sim card. Also, that S3 being a different phone may pick up on the access point names when you try another rom and set itself up, but if data is still not working, then try that APN I posted on the first post.
Also, be careful that you are actually connecting at LTE speeds as long as your area has it. Flashing to another rom I was only connecting at 3G. Turns out that once I tried another rom, you have to set the preferred network to LTE, then give the phone a reset. It took it a moment after reboot, but LTE finally showed up.
Depending on your phone, there are other settings to be set in it's hidden menu settings using the phones dialer. Just google around.
Hope this helps!

Help improve Verizon compatibility

The OP3 does work on Verizon, however there are some "issues" that can probably be easily fixed by someone who knows what they're doing (aka not me).
So far I can confirm 1X/3G (eHRPD) works. I have to enable data roaming for data to work, but I can make/receive calls, sms, mms, and cellular data.
I've also been able to force a connection to LTE by placing the phone into "LTE Only mode". However, when I do this sms, mms and calls don't work (only data works).
For some reason the phone defaults to 3G rather than 4G even though it can use both.
3G/4G data, sms, mms and calling are working, they just aren't working together.
I have done a lot of testing on ,apns and build.prop edits but I have not made any progress.
My personal theory is that the phone is defaulting to a US Cellular APN which then attaches to Verizon's network as a roaming partner.
I really need some help from the community to get this thing working right. Any help would be much appreciated.

I just wanted chime in and say I'm also on VZW and considering picking up an OP3. From reading your other thread, as long as I have XLTE/Band 4, I should be able to at least get some use out of the phone, correct?
The idea of unlocking Band 13 sounds like a fun challenge I'm willing to try!

@notjaykay I tried to unlock b13 but the nvram would reset after boot. Here's the link http://forum.xda-developers.com/showthread.php?p=67648238

I haven't tried to get LTE working, but I've been using Verizon on my OP3 for a week now. Most of the time I use Verizon only for SMS, MMS, and calling, but on several occasions when I don't have T-Mobile LTE signal, I switch to Verizon SIM for data, too. I only get 3G in this case, but it does work pretty well (albeit slow, at 3G speeds). I'm also interested in somehow getting the phone to play nicely with Verizon's LTE.

What about "telephony.lteOnCdmaDevice=1"
In build. Prop

george241312 said:
What about "telephony.lteOnCdmaDevice=1"
In build. Prop
Click to expand...
Click to collapse
I just made this change but I don't get Verizon LTE signal at my house, so I'll have to wait until I'm at work tomorrow to actually test it.

That build.prop edit will not get you LTE. I suggest using this app https://goo.gl/620Kc7 and setting it to "LTE Only". You may have to toggle the "turn radio off" option. Be patient and it will work. What you will find is that when in LTE only mode you will only get LTE data. I do all my calls and SMS/MMS using my Google voice number so I don't need traditional voice/sms services. However this is the point of this thread. For some reason the op3 defaults to ehrpd (3G) rather than LTE. Until volte gets working (doubt that will be anytime soon) we will reply on CSFB (circuit switch fallback) for voice and text. Not ideal but a lot better than what we have now.
I did find this folder with a .mbn file in the OSS firmware folder which shows volte config specifically for Verizon (check the attached screenshot)

Thanks for the info, @cdkg. I wasn't optimistic about the build.prop change having an effect, but it was an easy enough thing to try just in case. Unfortunately, in my case, LTE-only is out of the question, at least for now. I'm leaning toward porting my number to T-Mobile to give them a real try for a couple months anyway. However, if this whole compatibility with Verizon <=> OP3 thing ever gets totally worked out, I'd probably come back to Verizon.

Problem with using on ATT

Hey So I'm having some issues after sim unlocking phone;
I sim unlocked my phone and then flashed it back using odin to stock and still having issues.
Issues:
-While it says LTE the device does not seem to be getting actual LTE as doing a speed test revealed about 2-3 mbps
-When calling someone, they can rarely hear me
-When someone calls me I can't answer the call, I swipe to answer and the phone hangs then shows the call screen again and I try to answer the second time it usually disconnects the call
-When I am able to answer the call no audio and the call automatically hangs up after about 5 seconds
I know that the microphones are good as I can make calls using FB Messenger and don't have any issue since it's using the data.
Steps I have done:
-Flashed back to stock
-Factory Reset after Flash
-Manually set network to: AT&T
-Disabled WiFi calling
-Set network to 2g/3g to see if the LTE was causing the issue
....none of this seems to have made any difference in the issue.
Any recommendations, suggestions, in-sight would be great! Wondering if I should just sell this and get an ATT phone or if I can fix the issue.
I had read in some thread that someone had to get a new sim but from what I remember of the thread they weren't seeing anything data or the ability to select a operator. The phone the SIM originally came from was a iPhone 5C if that makes any difference.

This worked for me:
1) Use an "activity launcher" app to launch Device Info com.android.settings.radioinfo (there is one by that name in the Play Store that I use; Alternatively, Nova Launcher has a handy widget function to launch activities.)
2) Once Device Info/Radio Info is open, there is a drop down menu mid-way down the page that allows you to select various combinations. The default is intended for TMOBILE networks.
For AT&T, select "LTE/GSM (Auto)"
3) Reboot the phone
While the Radio Info settings updated to "LTE/GSM (Auto)" did immediately resolve the mobile data issues on AT&T for me, checking your active APN (that's it's using the AT&T Nextgen APN) might be worthwhile as well.

The program I actually tried to do this with was "4G LTE Switcher"; I had used it back with my XT912(Droid Razr Maxx) because it had lots of problems with custom roms and not connecting to the network and I tried those methods:
1. Turn on airplane mode and turn back on to establish connection after power on
2. Turn on airplane mode, power cycle
3. 4g Switch/ Turn data to CDMA only and then back to LTE (when was on verizon)
Things I've noticed:
1. If I'm on wifi the call audio never works even though I have disabled wifi calling
2. If I'm on LTE the call never works and for some reason like the phone doesn't want to switch over to HSPA
3. If I'm on HSPA+ it works more often on incoming calls than outgoing
I got a new sim card from ATT and had them add the IMEI into the system but didn't help at all.
Nougat should be out soon and hoping that I can get it fixed, going to try some rom flashing and CSC flashing to see if I can get a result out of it

I got my s6 edge plus in a trade, i was able to get it unlocked finally and was wondering if there is an unbranded rom that can be installed on the tmobile variant ? I have at&t as well.