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[Q] Flashed LG LS970 & LS980 3G Connection Problem

Hello. I flashed a Sprint LG G2 to PagePlus. The Flash goes well and All my items stick. But the problem is the connection is unstable. I'm noticed with both the LS970 and LS980 the same problem happens. The mobile data will first connect with 1x then to Evdo. Then the network will disconnect. I flash phones to pageplus all the time and they all have 3G - EVDO. But the unstable 3G is crazy. It will not stay connected. Why are the new LG phones like this? Has anyone encountered this problem and found a solution? I look forward to people's reply because I know a lot of people have run into this problem. Thanks in advanced.

Spelunker10 said:
Hello. I flashed a Sprint LG G2 to PagePlus. The Flash goes well and All my items stick. But the problem is the connection is unstable. I'm noticed with both the LS970 and LS980 the same problem happens. The mobile data will first connect with 1x then to Evdo. Then the network will disconnect. I flash phones to pageplus all the time and they all have 3G - EVDO. But the unstable 3G is crazy. It will not stay connected. Why are the new LG phones like this? Has anyone encountered this problem and found a solution? I look forward to people's reply because I know a lot of people have run into this problem. Thanks in advanced.
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Hello spelunker10, can the Verizon LG G2 be put on pageplus also?

nas529 said:
Hello spelunker10, can the Verizon LG G2 be put on pageplus also?
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Hello. Absolutely! That's my personal phone! Just make sure when you flash it, you leave the SIM card in the phone. 3g data works, mms, etc. Good luck.

I have a VZW G2, and want tot ale mine to page plus but I can't find info on flashing anywhere... Can you direct me?

colorsnet said:
I have a VZW G2, and want tot ale mine to page plus but I can't find info on flashing anywhere... Can you direct me?
Click to expand...
Click to collapse
The flashing method is same for all phones. Doesn't matter what kind. I'll give you a good starting place. Viper32 has a forum on here helping people with flashing. And there are plenty of forums with a ton of info. Good luck.

this g2 has been a nightmare for me. i have gotten used to samsung just flash and forget about it, only thing break flash on them is ota. this g2 though..... :/
I'm having same issue. unstable 3g

Sprint probs
What happened with mines is similar but I had the att variant
So I flashed mime to sprint and it worked but only on their 1x network and 3g towers in order for 4g to work and there new spark network I had to get a Sim card and pop it in and boom 4g LTE worked the sec I put it in

You can flash a gsm phone to cdma?
Sent from my SCH-I545 using Tapatalk

More info in the thread. http://forum.xda-developers.com/showthread.php?t=2360776 We got it worked out.

Any issues with losing call history at all, after flashing it to PagePlus?

gadgetdaddy said:
Any issues with losing call history at all, after flashing it to PagePlus?
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No. Call history has nothing to do with flashing. The only way you can lose call history is if you factory reset the phone or you personally delete the call history yourself.

Spelunker10 said:
No. Call history has nothing to do with flashing. The only way you can lose call history is if you factory reset the phone or you personally delete the call history yourself.
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Click to collapse
Actually its a known issue with this phone, that it looses its call history when flashed.
It has something to do with the Stock ROM release

I have the same issue.
Also I get a "MIP : 89" error sometimes.
Also, I have a system update downloaded waiting to install but not sure if it'll kill my flash so I've been scared to hit the button.

loveandhate said:
I have the same issue.
Also I get a "MIP : 89" error sometimes.
Also, I have a system update downloaded waiting to install but not sure if it'll kill my flash so I've been scared to hit the button.
Click to expand...
Click to collapse
Is your phone the LS980? I had a customer who updated his LS980 this past week and I had to re-flash his phone. You'll probably have to re-flash as well.

3G doesnt stick
Spelunker10 said:
More info in the thread. http://forum.xda-developers.com/showthread.php?t=2360776 We got it worked out.
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whats up Spelunker10
did you figure out! how to make the 3G stick on the LG G2 please need your help flashed like 10 different ways but still stuck on 1X

nexio said:
whats up Spelunker10
did you figure out! how to make the 3G stick on the LG G2 please need your help flashed like 10 different ways but still stuck on 1X
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I did. What android version are you running?

Spelunker10 said:
I did. What android version are you running?
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A custom rom 4.4.2 and thank you for answering back to me

nexio said:
A custom rom 4.4.2 and thank you for answering back to me
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I bet I know what your missing. Did you flash the custom nv file?

Spelunker10 said:
I bet I know what your missing. Did you flash the custom nv file?
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Which Custom nv files? Do you mean the ones from cama workshop

nexio said:
Which Custom nv files? Do you mean the ones from cama workshop
Click to expand...
Click to collapse
Yes you flash it in CDMA workshop under the Memory Tab. Did you flash this file?

I can't send or receive MMS unless I unroot :(

So I know this is a weird issue. I've done my research and tested way too many times before posting this up
OK, so the problem is that I can't send or receive MMS on my LTE network. Also, I believe this causes me to have problems with my GPS as it sometimes it can be detected and sometimes it won't.
The steps I've taken to rectify the problem:
1. Completely unrooted phone and flashed stock firmware from sammobile.com.
2. Checked if MMS and maps were working on the stock firmware and they were. I checked the USSD code using *#1234# in the dialer and it was working.
3. Done the rooting process and flashed new recovery and new ROM.
4. Tried to send MMS and issue persisted again. Also, when I send the MMS it disconnects my LTE and stays disconnected till I reconnect again.
5. I checked the USSD again and it says "Connection problem or invalid MMI code"
6. I have flashed so many different modems and bootloaders and the problem is still there. Unless I unroot and stick to my network provided ROM.
7. I checked APN settings, manually set new ones up using the network APN settings and still nothing.
What is the problem here? Is it my phone? A hardware issue? WHAT THE..
Any help is appreciated :fingers-crossed::fingers-crossed::fingers-crossed:

gspotr said:
So I know this is a weird issue. I've done my research and tested way too many times before posting this up
OK, so the problem is that I can't send or receive MMS on my LTE network. Also, I believe this causes me to have problems with my GPS as it sometimes it can be detected and sometimes it won't.
The steps I've taken to rectify the problem:
1. Completely unrooted phone and flashed stock firmware from sammobile.com.
2. Checked if MMS and maps were working on the stock firmware and they were. I checked the USSD code using *#1234# in the dialer and it was working.
3. Done the rooting process and flashed new recovery and new ROM.
4. Tried to send MMS and issue persisted again. Also, when I send the MMS it disconnects my LTE and stays disconnected till I reconnect again.
5. I checked the USSD again and it says "Connection problem or invalid MMI code"
6. I have flashed so many different modems and bootloaders and the problem is still there. Unless I unroot and stick to my network provided ROM.
7. I checked APN settings, manually set new ones up using the network APN settings and still nothing.
What is the problem here? Is it my phone? A hardware issue? WHAT THE..
Any help is appreciated :fingers-crossed::fingers-crossed::fingers-crossed:
Click to expand...
Click to collapse
Which custom rom?

Lennyz1988 said:
Which custom rom?
Click to expand...
Click to collapse
Here bro..

Hi,
gspotr said:
4. Tried to send MMS and issue persisted again. Also, when I send the MMS it disconnects my LTE and stays disconnected till I reconnect again.
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Click to collapse
I have no answer to this, but you're not alone.
See : http://forum.xda-developers.com/galaxy-s4/help/i9506-temaseks-unofficial-cyanogenmod-t3204676
As far as I can tell, we're both having the same issue with MMS.
I recently tried various things, including a fresh ROM re-install (with everything wiped) : with the stock ROM, MMS are working fine but with anything CM 12.1 based, they aren't (unless I'm connected to WiFi, as I explained in my post, which points to a data connection management issue).
I also tried the latest modem available (CM 12.1 based roms were using XXUDOC5, I'm now on XXUDOF2), to no avail.
Have a nice day all

Felindril said:
Hi,
I have no answer to this, but you're not alone.
See : http://forum.xda-developers.com/galaxy-s4/help/i9506-temaseks-unofficial-cyanogenmod-t3204676
As far as I can tell, we're both having the same issue with MMS.
I recently tried various things, including a fresh ROM re-install (with everything wiped) : with the stock ROM, MMS are working fine but with anything CM 12.1 based, they aren't (unless I'm connected to WiFi, as I explained in my post, which points to a data connection management issue).
I also tried the latest modem available (CM 12.1 based roms were using XXUDOC5, I'm now on XXUDOF2), to no avail.
Have a nice day all
Click to expand...
Click to collapse
Hey bro, thank you for your reply.
I have the same issue. It works when I'm on Wi-Fi too.. so no solution to this? =(

gspotr said:
Hey bro, thank you for your reply.
I have the same issue. It works when I'm on Wi-Fi too.. so no solution to this? =(
Click to expand...
Click to collapse
http://forum.xda-developers.com/search.php?searchid=388567062
As that rom is based on this rom, search this thread for anything related to mms. If it works on wifi then it's 100% a wrong apn setting or maybe a bug.

Lennyz1988 said:
http://forum.xda-developers.com/search.php?searchid=388567062
As that rom is based on this rom, search this thread for anything related to mms. If it works on wifi then it's 100% a wrong apn setting or maybe a bug.
Click to expand...
Click to collapse
It's definitely a bug. I've already tried everything to do with my providers APN. I installed so many modems as well no luck whatever. I'm pretty sure is an easy, small script that is an easy fix for a developer =/

gspotr said:
It's definitely a bug. I've already tried everything to do with my providers APN. I installed so many modems as well no luck whatever. I'm pretty sure is an easy, small script that is an easy fix for a developer =/
Click to expand...
Click to collapse
I don't think the fix is that easy for them because there are already a few patches applied in the past for MMS. Your best bet would still be to search that thread I gave you and see if someone came up with a fix.

Lennyz1988 said:
http://forum.xda-developers.com/search.php?searchid=388567062
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Click to collapse
Thanks but we cannot use that search link you gave us... ("Sorry - no matches. Please try some different terms. ")
Which thread were you pointing at, please ?
Cheers !

Felindril said:
Thanks but we cannot use that search link you gave us... ("Sorry - no matches. Please try some different terms. ")
Which thread were you pointing at, please ?
Cheers !
Click to expand...
Click to collapse
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Search for "mms".

Lennyz1988 said:
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Search for "mms".
Click to expand...
Click to collapse
Thanks bro, I'll give it a go when I get home from work tonight..

Lennyz1988 said:
Search for "mms".
Click to expand...
Click to collapse
Thanks a lot, the fix was in there : http://forum.xda-developers.com/gal...lucard24-s-t3066696/post62511742#post62511742
I'm still wondering why that fix that's been added in CM 12.1 since august wasn't in our "custom" CM 12.1 roms but still... IT WORKS !
Have a nice day !

Recovering from USA BAND to AUTO mode in *#*#4636#*#*

If you are unfortunate enough clicks USA BAND or other mode in 4636 caused no signal, please flash this ROM, you can revert to AUTO mode in 4636, find back signal
thanks the great God @bitdomo
https://mega.nz/#!g9IDWATT!qcB_SJAGaPbrQaFhlVzkIzgeWZ0m363aabUm3C8SjpU

@sneakymise @Ferasmn @jipjip777
---------- Post added at 06:36 AM ---------- Previous post was at 06:34 AM ----------
[/COLOR @sneakymise @Ferasmn @jipjip777
---------- Post added at 06:36 AM ---------- Previous post was at 06:36 AM ----------
[/COLOR @sneakymise @Ferasmn @jipjip777 @zhxhwyzh14

eudemonky said:
If you are unfortunate enough clicks USA BAND or other mode in 4636 caused no signal, please flash this ROM, you can revert to AUTO mode in 4636, find back signal
thanks the great God @bitdomo
https://mega.nz/#!g9IDWATT!qcB_SJAGaPbrQaFhlVzkIzgeWZ0m363aabUm3C8SjpU
Click to expand...
Click to collapse
Nice to see it is working

bitdomo said:
Nice to see it is working
Click to expand...
Click to collapse
Any plans to implement this in Nexus 6 and Nexus 5X?

Witek_M said:
Any plans to implement this in Nexus 6 and Nexus 5X?
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Click to collapse
Nexus 5x is here
Is Nexus 6 have the same issue?

bitdomo said:
Nexus 5x is here
Is Nexus 6 have the same issue?
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Click to collapse
Yes, Nexus 6 has same issue. http://forum.xda-developers.com/nexus-6/help/help-locked-nexus-to-usa-band-t2975290

Witek_M said:
Yes, Nexus 6 has same issue. http://forum.xda-developers.com/nexus-6/help/help-locked-nexus-to-usa-band-t2975290
Click to expand...
Click to collapse
Then it is time for cooking some roms!

bitdomo said:
Then it is time for cooking some roms!
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If someone makes change back to "automatic" band selection will this setting remain if you decide to flash factory image?

Witek_M said:
If someone makes change back to "automatic" band selection will this setting remain if you decide to flash factory image?
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Click to collapse
Once you select automatic band with the rom I built you can flash whatever you want. The change remains permanent regardless of what rom are you going to flash afterwards (atleast for nexus 5x and nexus 6p)

shuaishuai said:
@sneakymise @Ferasmn @jipjip777
@zhxhwyzh14
Click to expand...
Click to collapse
thank you very much! @bitdomo @eudemonky@shuaishuai

bitdomo said:
Once you select automatic band with the rom I built you can flash whatever you want. The change remains permanent regardless of what rom are you going to flash afterwards (atleast for nexus 5x and nexus 6p)
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Click to collapse
Great

nvm

Can confirm this works. You are a £450 life saver friend.

This needs to be stickied. There a lot of people with this issue. I've been telling people to use Chroma to get it working again. It looks like this ROM has more options tho.

eudemonky said:
If you are unfortunate enough clicks USA BAND or other mode in 4636 caused no signal, please flash this ROM, you can revert to AUTO mode in 4636, find back signal
thanks the great God @bitdomo
Hi there, I looked everywhere on the site, I saw a mention of a Nexus 5 version of this ROM, can you point me in the right direction please?
Click to expand...
Click to collapse

Well I got stuck with this issue after traveling overseas. I already had a sim, but got no signal when I put it in upon arrival. Of course I pressed every button and changed every setting, who doesn't? Well it turns out the sim had expired and that was the original issue. It went downhill from there when I couldn't get any sim to work in my phone and had to revert to my backup OnePlus.
I've updated to the newest image, but I doubt there is any change that fixed this issue. Is there any way we can get this going without flashing another rom? I tried to get QPST going but didn't have any luck with driver setup.
The other question is how do you know it's fixed BEFORE traveling overseas again?

anybody success get band back to automatic after flash this rom?

pretty desperate as no technical service for 6p in my country,
flashed rom, multiple crashes, able to change radio to auto, still no signal. anyone?

This worked for me, 6p LTE signal drops. Before i Flashed rom, found the mm29m vendor image on afh, flashed rom, open gapps, vendor, rebooted. Had bunch of fc's but struggled to set everything up. Force stopped setup wizard. Logged into google.
Then did a factory reset. Earlier today on stock and on roms 4 lte drops, after flashing this, no more
Edit update:
Day 2 of no drops. Flashed 2 ROMs and all is well.
BEFORE I FOUND THIS FIX, I was losing LTE about every 3 hours, nothing fixed it. Flashed STK on toolkit, airplane mode, dialer codes, nothing.
Thanks OP!!

I am using a Moto X Pure XT1575. So sorry for my question not in the right place.
I have the same mistake to press USA band in *#*#4636#*#* and try many way to fix the problem. But, it is not completely work, I have 2G but lost 3G now.
I see that there is a thread in Moto X Pure about the Pure Nexus - Clark developing now:
forum.xda-developers.com/moto-x-style/development/rom-aosp-pure-nexus-clark-t3337479
@bitdomo: My questions is Can we modify this rom above Purenexus -Clark to make a Rom with Auto Band same as what you did for Nexus? If yes, please instruct/help to make this rom.
Thank you

4g gone off on Virgin (EE), 2g only

3 weeks ago the 4g disappeared from my Redmi 3s after months of working fine on Virgin UK. I now have 2g, and the occasional call coming through. I've checked the APNs, I've done factory reset etc - nothing has worked. I've had 2 new SIMS and got the same problem. I tried a SIM from a different network today and still nothing. The phone was in the car when it suddenly went off so it hasn't been dropped or anything. What's going on??

Anyone..?

Jmac-25 said:
Anyone..?
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Click to collapse
Have you tried using your SIM on another phone? Did 4g work on other phone? If it does, then maybe you should try to flash a fastboot ROM and see if it's fixed or not.

psychopac said:
Have you tried using your SIM on another phone? Did 4g work on other phone? If it does, then maybe you should try to flash a fastboot ROM and see if it's fixed or not.
Click to expand...
Click to collapse
Yes the Sim worked in another phone. Are there any easy to follow guides for installing a flashboot rom? I'm not a technical whizz.

Jmac-25 said:
Yes the Sim worked in another phone. Are there any easy to follow guides for installing a flashboot rom? I'm not a technical whizz.
Click to expand...
Click to collapse
Try this...
http://en.miui.com/a-234.html

my service is also degraded, but i have lycamobile. i use to get H+ and now reciently i only get E. i tried flashing back to stock global and nothing fixed. im calling the company today and see.

I've given up and ordered a 4x

Lost LTE after flashing a ROM

I lost LTE after I flashed Ressurection Remix. I wiped after I flashed Ressurection due to the ROM constantly dropping service randomly. I had LTE perfectly fine with that ROM though. So afterwards, I tried Omni Rom and that's when I started only getting 3G and absolutely no LTE, no matter what ROM I flashed. I flashed the stock ROM, including flashing the stock modem and wiping modemst1 and t2, and still have no LTE, even on the stock ROM. Is there anything I can do? I'm fully rooted with TWRP, and have not had any errors upon flashing. I don't know what would have caused this.

cotylee1991 said:
I lost LTE after I flashed Ressurection Remix...I flashed the stock ROM, including flashing the stock modem and wiping modemst1 and t2, and still have no LTE, even on the stock ROM. Is there anything I can do? I'm fully rooted with TWRP, and have not had any errors upon flashing. I don't know what would have caused this.
Click to expand...
Click to collapse
I think you have to re-create the APN settings that your carrier requires for mobile data. It's possible that RR has APNs built in for various carriers and if that's the case, find the one for your carrier and make it the default. This is what I had to do when I flashed LineageOS and also after I re-flashed the stock ROM.

lmacmil said:
I think you have to re-create the APN settings that your carrier requires for mobile data. It's possible that RR has APNs built in for various carriers and if that's the case, find the one for your carrier and make it the default. This is what I had to do when I flashed LineageOS and also after I re-flashed the stock ROM.
Click to expand...
Click to collapse
That's what I did, and even flashed back the original ROM and all I'm getting is H+ data now. Absolutely no LTE. Something had to have went wrong to cause the radio in the phone to stop picking up LTE.

UPDATE: I found out that it was the kernel that caused me to lose LTE. I flashed a different kernel and it brought back LTE.

cotylee1991 said:
UPDATE: I found out that it was the kernel that caused me to lose LTE. I flashed a different kernel and it brought back LTE.
Click to expand...
Click to collapse
Can you link what kernel worked for you. I'm having the same issues with LTE trying to use it on Verizon. I can get 4G to work if I change the radio to United States but then phone calls don't work. If I get it so that phone calls do work then the signal drops out all the time and 3g is only available.
Thanks.

fictitiousexistence said:
Can you link what kernel worked for you. I'm having the same issues with LTE trying to use it on Verizon. I can get 4G to work if I change the radio to United States but then phone calls don't work. If I get it so that phone calls do work then the signal drops out all the time and 3g is only available.
Thanks.
Click to expand...
Click to collapse
Certainly!
https://forum.xda-developers.com/mo...ernel-vegito-kernel-1-0-13-september-t3461021
Keep in mind, we can use G4 plus kernels and ROMs too, even if were on the regular G4.
ElementalX kernel may also work if that one doesn't work out for you.
Download according to your current ROM (nougat, marshmallow, etc), reboot to recovery, install zip that you downloaded, wipe cache, reboot, done. Turn off WiFi before rebooting to recovery, that way when you reboot after flashing the kernel it will go straight for mobile network instead of WiFi (;
Let me know if it works for you too!

cotylee1991 said:
Certainly!
https://forum.xda-developers.com/mo...ernel-vegito-kernel-1-0-13-september-t3461021
Keep in mind, we can use G4 plus kernels and ROMs too, even if were on the regular G4.
ElementalX kernel may also work if that one doesn't work out for you.
Download according to your current ROM (nougat, marshmallow, etc), reboot to recovery, install zip that you downloaded, wipe cache, reboot, done. Turn off WiFi before rebooting to recovery, that way when you reboot after flashing the kernel it will go straight for mobile network instead of WiFi (;
Let me know if it works for you too!
Click to expand...
Click to collapse
Thanks for the reply!
I was excited, but it did not work for me. Still only getting 3G. Its weird because it constantly says I lost signal cause I went outside my home area. There should be perfect Verizon coverage here.
But when I set the radio band to United States( which I am in) the 4G works perfectly but then the network for calling/SMS is gone.
When the 4g works, the apns all change and then when I set the radio band back to automatic they change again but to something that has no 4G.
I also have no option to edit or add any APNs.

fictitiousexistence said:
Thanks for the reply!
I was excited, but it did not work for me. Still only getting 3G. Its weird because it constantly says I lost signal cause I went outside my home area. There should be perfect Verizon coverage here.
But when I set the radio band to United States( which I am in) the 4G works perfectly but then the network for calling/SMS is gone.
When the 4g works, the apns all change and then when I set the radio band back to automatic they change again but to something that has no 4G.
I also have no option to edit or add any APNs.
Click to expand...
Click to collapse
You know what's weird is I used to use Total Wireless which is on the Verizon network in my G4, and towards the end I was only getting 3G as well.
Which ROM are you currently on if you don't mind me asking?

cotylee1991 said:
You know what's weird is I used to use Total Wireless which is on the Verizon network in my G4, and towards the end I was only getting 3G as well.
Which ROM are you currently on if you don't mind me asking?
Click to expand...
Click to collapse
Its not that personal of a question lol I don't mind at all. I am using Resurrection Remix. And the kernel that you mentioned. The sim came from my work phone which was a Galaxy S5 Verizon.
So does the G4 work on cmda AND gsm? I thought you had to get an unlocked version of one or the other?
I think the guy I bought the phone from said he was using it on TMobile.
He mentioned that the moto g4 had sim issues when it first came out but this one was a new one Motorola sent back to him.

Maybe this will help you out, I had LTE issues right out of the box on mine and fixed it with this:
https://forum.xda-developers.com/moto-g4-plus/help/lte-issues-suggestions-flash-radio-modem-t3672456

natenkiki2004 said:
Maybe this will help you out, I had LTE issues right out of the box on mine and fixed it with this:
https://forum.xda-developers.com/moto-g4-plus/help/lte-issues-suggestions-flash-radio-modem-t3672456
Click to expand...
Click to collapse
I downloaded the rom and extracted the zip file. I'm not seeing where the NON-HLOS.bin and fsg.mbn files are?
Thanks.
Nevermind. Think I downloaded the wrong file.