Related
I originally posted about this here: http://forum.xda-developers.com/showthread.php?p=30570751#post30570751
My post was: I just installed JBSourceryV2.0-LTE on Verizon Nexus and now have no data/4G bars/connectivity at all. I did a full data/cache/dalvik wipe before installing JBSourceryV2.0-LTE.zip and then gapps-jb-20120726-signed.zip. I have flashed several ROMs before and haven't had this issue. I have seen the white bars change from 3 to 4 a few times, but no data/4g connect. Calls and texts work, but web browsing and Play store do not. The blue bars mean no sync to Google? What am I missing? Turned off wifi and lost the blue bars. it seems I can only get the blue bars when wifi is connected. What's going on?
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So now I have seen the same thing on BAMF Paradigm and Dark ParanoidAndroid and Codename Android (all latest versions), but I have no problems using Eclipse. It's obviously something on my phone, but why does it work with Eclipse, nut not the others? What do they do that Eclipse doesn't (or vis versa)?
aldar5 said:
I originally posted about this here: http://forum.xda-developers.com/showthread.php?p=30570751#post30570751
My post was: I just installed JBSourceryV2.0-LTE on Verizon Nexus and now have no data/4G bars/connectivity at all. I did a full data/cache/dalvik wipe before installing JBSourceryV2.0-LTE.zip and then gapps-jb-20120726-signed.zip. I have flashed several ROMs before and haven't had this issue. I have seen the white bars change from 3 to 4 a few times, but no data/4g connect. Calls and texts work, but web browsing and Play store do not. The blue bars mean no sync to Google? What am I missing? Turned off wifi and lost the blue bars. it seems I can only get the blue bars when wifi is connected. What's going on?
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So now I have seen the same thing on BAMF Paradigm and Dark ParanoidAndroid and Codename Android (all latest versions), but I have no problems using Eclipse. It's obviously something on my phone, but why does it work with Eclipse, nut not the others? What do they do that Eclipse doesn't (or vis versa)?
Click to expand...
Click to collapse
check to see if mobile data is turned on and this belongs in Q&A and not dev.
settings -> more -> mobile networks -> data enabled
xredjokerx said:
check to see if mobile data is turned on and this belongs in Q&A and not dev.
settings -> more -> mobile networks -> data enabled
Click to expand...
Click to collapse
Yes, it's on. Toggled it on and off a few times to make sure.
I've also installed the latest radios and same thing. I guess I can do a complete wipe and see what happens.
OK, I reset my phone back to original using ...
"[TOOL] One click back to stock 4.0.4 for warranty/repairs"
http://forum.xda-developers.com/showthread.php?t=1743939
After that, the 4g data worked like it should.
So I re-rooted it using ...
[GNex TOOLKIT V7.8]
http://forum.xda-developers.com/showthread.php?t=1400871
and after that the same thing happened again, only white 4g bars unless wifi was connected.
Then I re-installed the Eclipse b15 rom that worked before (my backup was corrupt) and now it's doing it too, where before it worked. I have now installed at least 4 different roms and same thing happens ... 4 white 4g bars until I connect wifi then the 4bars go blue, while it's just white bars I have no data connectivity (web, play store, etc), but I can make calls and text.
Any ideas from anyone please would be greatly appreciated. Please.
Also, I've had this phone for about 3-4 months and have been putting ROMs on it ever since with no problems. This started about 2-3 weeks ago and, of course, I don't know what I would have done around that time that would have caused it. I don't remember doing anything that I don't usually do when rooting and installing ROMs.
Surely the unlocking, rooting, etc. must change something that effects the radios or something. I have searched for others with similar problems and cannot find a solution. Obviously it's not a common problem, but for some reason it is happening to my phone. It's got to be software because it works when at factory defaults.
No suggestions? Please... I've been rooting and applying ROMs since the Incredible came out, but I'm not a dev, I just can't figure this out. If you think I'm just not looking hard enough, then point me in a direction and I'll look.
Well, the weirdness continues. On my new warranty replacement phone I get 4g stock after using GNex Toolkit option 8 (unlock, root, rename, cwm, busybox all at once). But when I try JBsourcery or Eclipse, same old thing, no 4g!! I have rooted and ROMd my Incredible and my X2 probably 40 times each at least and never had any issues, there just isn't that much too it, so I don't see what can go wrong. I know since it's still happening on another phone it seems like I must be doing something wrong, but I don't know what.
Here is my process for my Nexus (from stock 4.0.4):
-GNex Toolkit option 8 (unlock, root, rename, cwm, busybox all at once)
-Setup newly rooted stock with my gmail acct info, verify it has 4g data.
-Copy over some ROM and gapps .zip files
-Reboot in to recovery
-Wipe data, cache & dalvik
-Install ROM
-Install it's gapps
-Reboot
-Skip gmail setup because I don't have 4g (don't want to use wireless because that's not the point, but even after I do, 4g doesn't work)
-... and no 4g data
I wait for 15 minutes, I check and uncheck airplane mode, I pull the sim card and reboot... nothing.
Just this morning I did the above process and tried the following ROMS and still get no 4g.
http://teamsourcery.com/ICSourcery/gnex/releases/JB/2.3/LTE/JBSourceryV2.3LTE.zip
http://www.teamsourcery.com/ICSourcery/gnex/releases/JB/2.2/JBSourceryGapps.zip
http://goo.im/devs/codenamedroid/stable/GalaxyNexus-VZN/Codename-Android-3.6.6-GN-VZN.zip
http://goo.im/devs/codenamedroid/googleapps/CNA-GAPPS-JRO03C-CameraFeatures-NoPicasa.zip
http://eclipserom.com/mods/click.php?id=174 --> Eclipse-2.0-Toro-Build15.zip
http://eclipserom.com/mods/click.php?id=173 --> gapps-4.1.1-Eclipse0910.zip
I have tried it with LTE-FC05 / CDMA-FC04 and I have tried it with LTE-FG02 / CDMA-FF02. I have even gone backwards radio-wise just to see if that changed anything, it didn't. Right now I can only get 4g data with stock 4.1.1 (4.0.4 too) unlocked, rooted, etc. Any time I install a ICS or JB ROM, the 4g doesn't work. I just really am at a loss. It sucks because I like changing ROMs like 1-2 times a week. *sigh*
So what is the difference, radio-wise, between stock and most ROMs?
Are there any logs I can look at that might point me in the right direction?
Hello,
Tonight I tried two different ROMs on my T-Mobile G2 (USA) and experienced a very weird Wi-Fi unavailability issue in both out of the box. Wi-Fi is not active. I cannot turn it on. It's not that it can't find networks or died after an hour, it's as if the Wi-Fi module is missing to the OS from the moment the device booted. When I go to the settings menu, find Wi-Fi, and flip the toggle switch to ON, it immediately goes back to OFF. Rebooting does not help. Going to Airplane Mode and back does not help.
Some quick background:
My previous working build is Ice Cream Jibwich 2.0. (Link)
While rooting this phone, I followed directions for gfree, and did not get SuperCID, simlock-off, or S-OFF.
I use ClockworkMod Recovery. As of now I can recover to my Ice Cream Jibwich install with no problems.
Here's what happened on the ROMs I've tried:
CM9.1.0 (Link), Kernel 3.x., gapps-20120429-signed
Factory reset, clean install. There is no Wi-Fi as detailed above, and it doesn't even recognize my T-Mobile SIM.
So I try another ROM:
Andromadus Mimicry 1.5 (Link), gapps-20120429-signed
Factory reset, clean install. I did not install either EdKeys' WiFi Calling or the .19 Radio lib-RIL/GPS .so updater.
I do get mobile service this time. However, the Wi-Fi problem remains.
Since I can download something this time, I installed some diagnostics tools. Elixir2 reports that the Wi-Fi module is "unknown", its connection state is "uninitialized", and it thinks it's "ready to start data connection setup" in the Detailed State. logcat shows no errors that are relevant to Wi-Fi.
Dom's Diagnostic Tools has "Unknown" or "Not Available" for every category under Wi-Fi.
I have tried Wifix for Mimicry (Link), and I don't notice any improvement.
What am I missing, what can I look for, and what are my options? Your help is very appreciated, as I'm losing patience for Jibwich's lag and instability. I can live with it, but the people that I want to gift this phone to won't.
Thanks!
Just last week my DZ started to have a very similar (probably the same) issue. When I try to start wifi, the phone gets stuck at "Turning on Wi-Fi..." and never actually turns the wifi on. It started happening occasionally on EliteMod ICS but a reboot would often fix the issue. Eventually rebooting stopped fixing it however. I have since wiped the phone and flashed a new ROM (Andromadus Jelly Belly Beta 1), and the issue remains. The MAC address is shown as unavailable in phone status and when checking in Elixir, I see the same things that infinip sees.
I have read elsewhere on other forums for other phones that it may have something to do with a faulty modem file or something, but frankly I have no idea.
Czechton said:
I have read elsewhere on other forums for other phones that it may have something to do with a faulty modem file or something, but frankly I have no idea.
Click to expand...
Click to collapse
Sounds promising. Do you remember where?
Short - the core problem
I recently looked in to replacing the Android system with a Team Venom Viper ROM. I managed to unlock it with S-off and install TWRP and flash the Viper ROM. I saved a backup of the old ROM. Now, I wanted a stable ROM so I chose not the newest and in pone settings it says Android 4.4.2.
The phone is a Verizon phone (HTC 6500 LVW). I wanted total freedom to use to all over the world and play with it. However, I have a few issues that I think come from the same main issue.
1) I only get edge in US! No 4G, no 3G. Overseas in Europe, I briefly see the 3G sign but then it goes to “H” which has decent speed. I spend a ton of time changing the settings, they are fine. I use T-Mobile and thought I could kick off Verizon with Viper ROM.
Full - Additional issues
2) Images in text don’t work.
3) SMS texts often fail.
4) When I start the phone, a popup emerges: “Non Verizon Sim. The Simcard is from an unknown source” and in status emnu it says “tab to complete Simcard setup”. Then I go choose T-Mobile and it set standard settings to T-Mobile. Still only getting edge.
5) The phone often gets hot.
6) I recently started getting the error android.process.acore , but I removed the sync of Facebook (removed the apps) and flushed the the contacts, so that error is gone now.
The Ask
Does these all come from the same issue? I think I need to upgrade the ROM to latest VIPER ROM and maybe my firmware. My question. Is that the solution and what should I be aware of so I don’t make the same mistake as last time.
Any help is highly highly appreciated!!!!
Jungstar
The phone's radio does not have the 3G GSM or LTE bands to support US carriers. it only will get edge.
H is a form of 3G that the phone supports.
Update your firmware. To use the latest Rom, you need to be on the latest firmware and radio to help alleviate your other issues in the Rom. Also do a clean flash (wipe data, cache and system before installing your Rom.)
You can find the latest firmware in Santod's thread in the development section with instructions on how to flash it.
Sent from my HTC6500LVW using XDA Free mobile app
I picked up a Sprint prepaid HTC 816 recently and decided to flash this rom below
[ROM][UNOFFICIAL][CM12.1][5.1.1][VirginMobileUS][A5][single sim][1/1/2016 security]
That one
It installed great, had everything everything working after I added my Sprint APN settings. The phone still displayed it as Virgin Mobile and only 3g seemed to be working. But I was making and receiving calls, text messages and had mobile data.
Fast forward a couple of hours, I installed a custom theme from the Play store, rebooted and ever since then I lost the ability to pickup a network signal and access my APN settings.
If I re-seat the sim and toggle airplane mode it will pickup a network signal and I can regain apn setting access again but it drops within minutes.
Ive reflashed the rom, wiped everything reflashed again, same thing. Any ideas on what has happened?
Thanks and appreciate your time!
monsai83 said:
I picked up a Sprint prepaid HTC 816 recently and decided to flash this rom below
[ROM][UNOFFICIAL][CM12.1][5.1.1][VirginMobileUS][A5][single sim][1/1/2016 security]
That one
It installed great, had everything everything working after I added my Sprint APN settings. The phone still displayed it as Virgin Mobile and only 3g seemed to be working. But I was making and receiving calls, text messages and had mobile data.
Fast forward a couple of hours, I installed a custom theme from the Play store, rebooted and ever since then I lost the ability to pickup a network signal and access my APN settings.
If I re-seat the sim and toggle airplane mode it will pickup a network signal and I can regain apn setting access again but it drops within minutes.
Ive reflashed the rom, wiped everything reflashed again, same thing. Any ideas on what has happened?
Thanks and appreciate your time!
Click to expand...
Click to collapse
Are these the APN codes you used(poster corrected a mistake in green text)? Looks like there is a different APN for prepaid /postpaid.
http://androidforums.com/threads/working-sprint-prepaid-apn-settings.920752/
I indeed use the apn settings in the green from that post. They were working fine until I had a reboot. Then everything went to ****. It wont even let me access the apn settings and when I can its briefly and then I lose signal and apn access.
monsai83 said:
I indeed use the apn settings in the green from that post. They were working fine until I had a reboot. Then everything went to ****. It wont even let me access the apn settings and when I can its briefly and then I lose signal and apn access.
Click to expand...
Click to collapse
I had an issue with something on my Virgin mobile 816 a5_chl a while back and a member @wxppro was very knowledgeable about APN settings and their intricacies. He had a MVNO 816 at the time with an APN issue and I bet he could help you with this as that was my best suggestion for a fix and it didn't help you.
See if you can direct him here to this forum so that if he can help out the info is here to help others as well. Good luck.
Not sure how much I can help. APN is a tricky business. If your APN settings disappear after some time, it is generally because the cellular network the phone connects to does not match the APN's MCC/MNC numbers. Or it could be the phone is in 3G mode (CDMA EvDo mode).
You can try these things:
Switch network types, from LTE to 3G, wait a minute, and then back to LTE. APNs do not show up in 3G mode. They only show up in LTE (or global) mode.
When you have the APNs show up, check the parameters are correct, you can do a "Restore to default" and then add the new one following that post.
Hope this helps.
I'm having a similar issue as well (except on virgin mobile)
A month ago I flashed squid's version of CM 13 on my phone and everything was fine for a few days, until I completely lost LTE and access to APNs. I reverted to stock and still was unable to get LTE, although I could get a shaky 3g connection if I changed the network mode to CDMA only. I called virgin mobile and they walked me through the troubleshooting steps and eventually determined it was a network outage (even though two desires in my house belonging to other family members had LTE). I called again after they verified that the network was working again and they were still unable to fix the issue.
Recently, a friend upgraded from a desire to a different phone on a different network, and gave me his old phone. I plugged in my sim card and activated this new phone and I got LTE. Figuring everything was good, I decided to flash squid's ROM once again. The same issue happened, I got LTE for a day or two until it cut out service again. No access to APNs, not even any service in stock or on the official build of CM12 with the APN fix (I can't access APNs there either). I'm out of ideas and would appreciate if anyone had any input on my issues.
Techdude154 said:
I'm having a similar issue as well (except on virgin mobile)
A month ago I flashed squid's version of CM 13 on my phone and everything was fine for a few days, until I completely lost LTE and access to APNs. I reverted to stock and still was unable to get LTE, although I could get a shaky 3g connection if I changed the network mode to CDMA only. I called virgin mobile and they walked me through the troubleshooting steps and eventually determined it was a network outage (even though two desires in my house belonging to other family members had LTE). I called again after they verified that the network was working again and they were still unable to fix the issue.
Recently, a friend upgraded from a desire to a different phone on a different network, and gave me his old phone. I plugged in my sim card and activated this new phone and I got LTE. Figuring everything was good, I decided to flash squid's ROM once again. The same issue happened, I got LTE for a day or two until it cut out service again. No access to APNs, not even any service in stock or on the official build of CM12 with the APN fix (I can't access APNs there either). I'm out of ideas and would appreciate if anyone had any input on my issues.
Click to expand...
Click to collapse
I have this same phone a5_chl Virgin Mobile. Did you factory reset your device before flashing back to your stock rom? The other thing is and this is just my opinion not a statement of fact or a knock on the wonderful Bigsupersquid but that 13 CM ROM is nowhere close to being stable enough for me to risk flashing it to my daily driver phone. Just read all the posts and his candid responses. You were basically a beta tester .
I'm not an expert in APN's but if you can't get that fixed your last resort might have to be wiping your system and then flashing or running the executable RUU (rom utility upgrade) file found for our device on HTC/downloads . This is a last resort option and wiping your system will remove your existing firmware so have the correct RUU for your phone downloaded to your computer before attempting a wipe. If it's an exe, which I believe the U.S. Virgin Mobile one is ,you will hook up your phone fully charged in fastboot mode then from your computer run the exe RUU like any other exe executable program and wait. It will reformat all partitions and reinstall pure stock ROM. Hope someone else had an easier fix for your data issues and good luck.
EDIT: you will need your stock recovery flashed back and a relocked bootloader before flashing the RUU but I've read that some have flashed their RUU over a custom recovery with a locked bootloader and it wrote over the custom recovery with the stock recovery. I have never personally tried this just the first way I mentioned and that worked for me.
thoctor said:
I have this same phone a5_chl Virgin Mobile. Did you factory reset your device before flashing back to your stock rom? The other thing is and this is just my opinion not a statement of fact or a knock on the wonderful Supersquid but that 13 CM ROM is nowhere close to being stable enough for me to risk flashing it to my daily driver phone. Just read all the posts and his candid responses. You were basically a beta tester .
I'm not an expert in APN's but if you can't get that fixed your last resort might have to be wiping your system and then flashing or running the executable RUU (rom utility upgrade) file found for our device on HTC/downloads . This is a last resort option and wiping your system will remove your existing firmware so have the correct RUU for your phone downloaded to your computer before attempting a wipe. If it's an exe, which I believe the U.S. Virgin Mobile one is ,you will hook up your phone fully charged in fastboot mode then from your computer run the exe RUU like any other exe executable program and wait. It will reformat all partitions and reinstall pure stock ROM. Hope someone else had an easier fix for your data issues and good luck.
EDIT: you will need your stock recovery flashed back and a relocked bootloader before flashing the RUU but I've read that some have flashed their RUU over a custom recovery with a locked bootloader and it wrote over the custom recovery with the stock recovery. I have never personally tried this just the first way I mentioned and that worked for me.
Click to expand...
Click to collapse
I did try factory resetting and I am on stock after flashing the RUU. It makes no sense as the RUU should have reset everything. That perplexes me the most
Techdude154 said:
I did try factory resetting and I am on stock after flashing the RUU. It makes no sense as the RUU should have reset everything. That perplexes me the most
Click to expand...
Click to collapse
OK then you did get back to stock not from a nandroid backup but from flashing or running exe stock RUU? If that's the case then it replaced everything that might have been changed and your issues shouldn't be related to any APN changes. You also removed and reinserted your sim card as I believe, correct?
EDIT: that perplexes me as well my friend!
Techdude154 said:
I did try factory resetting and I am on stock after flashing the RUU. It makes no sense as the RUU should have reset everything. That perplexes me the most
Click to expand...
Click to collapse
i posted about my lte issues i had for nearly two weeks, running stock just to verify the data service problem wasn't my rom...
i had to install stock recovery, relock bootloader, download the ruu.exe from htc and extract the .img file in Wine, then rename it onto the sdcard and reboot into hboot so it'd flash. neither Wine nor virtualbox xp talk correctly to any of my phones over usb. and i wasn't about to native install Windoze.
factory reset stock didn't fix it, even trying activation, update profile, etc.
i learned i could get 3g data but switching to lte instead of cdma shut down data entirely.
virgin eventually directly escalated me to tier 2 tech support in my last call, they sent a couple service programming pushes to the phone that got my lte back online.
i tried the various service programming menu options repeatedly, with no results but the prl updated once; but the trigger to fix my lte seemed to come from upstream.
i tried various apns, in cm12, cm13, and stock lollipop. rebuilt init_a5.cpp with different mccmnc and adjusted apns. i really tried most tricks in the book plus a few more.
as far as alpha testing goes, at this point I'm just sharing something cool... i always enjoyed flashing latest greatest on my ov way before i was building.
not too many actual logs to really bug report for either rom.
bigsupersquid said:
i posted about my lte issues i had for nearly two weeks, running stock just to verify the data service problem wasn't my rom...
i had to install stock recovery, relock bootloader, download the ruu.exe from htc and extract the .img file in Wine, then rename it onto the sdcard and reboot into hboot so it'd flash. neither Wine nor virtualbox xp talk correctly to any of my phones over usb. and i wasn't about to native install Windoze.
factory reset stock didn't fix it, even trying activation, update profile, etc.
i learned i could get 3g data but switching to lte instead of cdma shut down data entirely.
virgin eventually directly escalated me to tier 2 tech support in my last call, they sent a couple service programming pushes to the phone that got my lte back online.
i tried the various service programming menu options repeatedly, with no results but the prl updated once; but the trigger to fix my lte seemed to come from upstream.
i tried various apns, in cm12, cm13, and stock lollipop. rebuilt init_a5.cpp with different mccmnc and adjusted apns. i really tried most tricks in the book plus a few more.
as far as alpha testing goes, at this point I'm just sharing something cool... i always enjoyed flashing latest greatest on my ov way before i was building.
not too many actual logs to really bug report for either rom.
Click to expand...
Click to collapse
Some of that was over my head but happily not all of it. Basically what your saying is the fix needs to come from the carrier and it's a reset issue on their end not a custom rom issue? By the way I'm a big fan of your work. Hell I might be on one of your older ROMs right now I've flashed so many I forget. Thanks for the education.
thoctor said:
OK then you did get back to stock not from a nandroid backup but from flashing or running exe stock RUU? If that's the case then it replaced everything that might have been changed and your issues shouldn't be related to any APN changes. You also removed and reinserted your sim card as I believe, correct?
EDIT: that perplexes me as well my friend!
Click to expand...
Click to collapse
The first time it happened, I flashed back to stock using the RUU.exe. I tried again but the second time I took out the SIM card before running the program, I still can't get LTE.
bigsupersquid said:
i posted about my lte issues i had for nearly two weeks, running stock just to verify the data service problem wasn't my rom...
i had to install stock recovery, relock bootloader, download the ruu.exe from htc and extract the .img file in Wine, then rename it onto the sdcard and reboot into hboot so it'd flash. neither Wine nor virtualbox xp talk correctly to any of my phones over usb. and i wasn't about to native install Windoze.
factory reset stock didn't fix it, even trying activation, update profile, etc.
i learned i could get 3g data but switching to lte instead of cdma shut down data entirely.
virgin eventually directly escalated me to tier 2 tech support in my last call, they sent a couple service programming pushes to the phone that got my lte back online.
i tried the various service programming menu options repeatedly, with no results but the prl updated once; but the trigger to fix my lte seemed to come from upstream.
i tried various apns, in cm12, cm13, and stock lollipop. rebuilt init_a5.cpp with different mccmnc and adjusted apns. i really tried most tricks in the book plus a few more.
as far as alpha testing goes, at this point I'm just sharing something cool... i always enjoyed flashing latest greatest on my ov way before i was building.
not too many actual logs to really bug report for either rom.
Click to expand...
Click to collapse
It does sound a lot like a carrier/account issue as I managed to kill 2 different 816s. I don't think it's the SIM card itself because I put it into a 3rd phone and got LTE, although since it was someone else's phone, I didn' t bother activating it.
I guess you got lucky with support, I tried talking to them and they tried the same thing with me. Although all I got was excuses saying they're logging a ticket with their "network engineers" and to call back in a few days. This continued on for a few weeks until they determined I needed a new phone, which I was also bounced around for another few weeks (I still don't have it).
I'm just completely lost now. I'm almost certain it's my account and it needs to be reset, but I can't get a tech who can help me. How did you manage to get someone in tier 2?
Techdude154 said:
The first time it happened, I flashed back to stock using the RUU.exe. I tried again but the second time I took out the SIM card before running the program, I still can't get LTE.
This is starting to scare me as well because I'm thinking of going back to stock once Marshmallow gets pushed to our phone to get my beats drivers back and this is making me think twice. Sorry your having so much trouble.
Click to expand...
Click to collapse
thoctor said:
Some of that was over my head but happily not all of it. Basically what your saying is the fix needs to come from the carrier and it's a reset issue on their end not a custom rom issue? By the way I'm a big fan of your work. Hell I might be on one of your older ROMs right now I've flashed so many I forget. Thanks for the education.
Click to expand...
Click to collapse
seemed that way.
i took radio logs before and after it worked, and worked only on 3g, and it looked to me like the sim card responded differently to the ril after things were running right again.
mine might've been a special case, though, it came from ebay with no sim, and virgin had to go to a little effort to get it programmed when i installed the sim initially.
they also claimed for several days that the local Sprint tower was down for lte service.
---------- Post added at 10:37 PM ---------- Previous post was at 10:32 PM ----------
Techdude154 said:
The first time it happened, I flashed back to stock using the RUU.exe. I tried again but the second time I took out the SIM card before running the program, I still can't get LTE.
It does sound a lot like a carrier/account issue as I managed to kill 2 different 816s. I don't think it's the SIM card itself because I put it into a 3rd phone and got LTE, although since it was someone else's phone, I didn' t bother activating it.
I guess you got lucky with support, I tried talking to them and they tried the same thing with me. Although all I got was excuses saying they're logging a ticket with their "network engineers" and to call back in a few days. This continued on for a few weeks until they determined I needed a new phone, which I was also bounced around for another few weeks (I still don't have it).
I'm just completely lost now. I'm almost certain it's my account and it needs to be reset, but I can't get a tech who can help me. How did you manage to get someone in tier 2?
Click to expand...
Click to collapse
tier 2 takes luck, time, many calls, and eventually you learn the answers to all the questions tier 1 outsourced from India asks so you can feed it to them so fast they want to shuffle you along. takes a couple of weeks to over a month to get to tier 2 and sometimes they have to be involved multiple times as well.
I've been dealing with virgin since 2009... replaced only two phones, eventually got the rest of the issues hammered out with persistence.
for a little while, twice, i had direct toll free numbers to American tier two even because my issues were so hard to solve. it didn't take too long for those numbers to be disconnected, though.
So the problem I'm having with my G3 is that the Network either drops and comes back repeatedly or completely drops and does not return. This only happens on 4G. When I go into network settings and change network mode to 3G it works fine and I get a constant signal all the time.
I have been using Fulmics ROM and I thought maybe that was the issue. But it wasn't.
I tried 3 different sims from three different carriers (Three, EE, O2) on several stock firmwares. (20N, 21C, 30A, 30F).
Each scenario is the same; network drops when phone is on 4G network mode, but its fine on 3G mode.
However, I have noticed that if I leave Wifi OFF allowing 4G data to connect first, then its fine. I can even turn Wifi ON again and the network is stable. I can even turn Wifi and Data OFF and the network is still stable.
But, if I toggle aeroplane mode, where Wifi connects first or where Wifi and Data is turned OFF; I am back to the network dropping.
Also, I live in London UK so there should not be any signal issues. Can anyone tell me why this is happening. I doubt it's software issue as I've tried several firmwares.
Any help is appreciated.
Mate I'm afraid there is a high possibility it's the Fulmics ROM.. I'm still trying to read up on the issue myslef, there's a ton of reports in the Fulmics thread and around.

I'm using an UK bought LG G3 as well (from Three) and started experiencing similiar issues after I flashed Fulmics. Even tried rolling back to 4.4.2 using a .tot file but didn't really help me.
Still scouring all around trying to find how to fix the issue..
engmia said:
Mate I'm afraid there is a high possibility it's the Fulmics ROM.. I'm still trying to read up on the issue myslef, there's a ton of reports in the Fulmics thread and around.

I'm using an UK bought LG G3 as well (from Three) and started experiencing similiar issues after I flashed Fulmics. Even tried rolling back to 4.4.2 using a .tot file but didn't really help me.
Still scouring all around trying to find how to fix the issue..
Click to expand...
Click to collapse
Hmmm looking back now this issue did start when I first installed fulmics 3.5. But shouldn't everything revert back to stock when you reinstall stock firmware.
thufz9585 said:
Hmmm looking back now this issue did start when I first installed fulmics 3.5. But shouldn't everything revert back to stock when you reinstall stock firmware.
Click to expand...
Click to collapse
That's what I thought but I guess it's a little bit more tricky.
Anyways I think I managed to restore some kind of stability in the signal, still unsure about the process though. Seems that different stuff are working for different people. In a few days I hope to have some information to give you how to fix it.
In the meantime try checking the Fulmics thread for ideas and suggestions (that's where I start off from).
engmia said:
That's what I thought but I guess it's a little bit more tricky.
Anyways I think I managed to restore some kind of stability in the signal, still unsure about the process though. Seems that different stuff are working for different people. In a few days I hope to have some information to give you how to fix it.
In the meantime try checking the Fulmics thread for ideas and suggestions (that's where I start off from).
Click to expand...
Click to collapse
Yeah let me know when you find a fix. Really appreciate the help.
One thing that is sort of a temporary fix for me, works on Three, EE and O2 (only ones i tried), is connecting Data first when on 4G mode.
So if I toggle airplane mode and if Wifi connects first then the network drops or keeps refreshing.
But, if I leave Wifi OFF and Data establishes a connection; the network is stable and I can then turn Wifi On again and the network will remain stable.
I just have to make sure the network does not lose connection (i.e. tunnel or airplane mode), and if it does ensure Data connects first.
Also, another thing. After I reinstalled Fulmic 5.3 it seems 4G mode is sort of stable. As in when on 4G mode instead of dropping the network it connects via 3G automatically. But this only happens with Three.
thufz9585 said:
Yeah let me know when you find a fix. Really appreciate the help.
One thing that is sort of a temporary fix for me, works on Three, EE and O2 (only ones i tried), is connecting Data first when on 4G mode.
So if I toggle airplane mode and if Wifi connects first then the network drops or keeps refreshing.
But, if I leave Wifi OFF and Data establishes a connection; the network is stable and I can then turn Wifi On again and the network will remain stable.
I just have to make sure the network does not lose connection (i.e. tunnel or airplane mode), and if it does ensure Data connects first.
Click to expand...
Click to collapse
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
thufz9585 said:
Also, another thing. After I reinstalled Fulmic 5.3 it seems 4G mode is sort of stable. As in when on 4G mode instead of dropping the network it connects via 3G automatically. But this only happens with Three.
Click to expand...
Click to collapse
I changed my carrier and got an automatic SMS with configuration for my phone and instructions to save it. I should've known something was fishy when I recieved the "congratulations for setting up" message even before I recieved the actual settings. Anyways 4G was running fine on my new carrier with 32 mbps speed which is okay, much better compared to the same carrier 3G network, however I only had 3 bars of connection so I gussed what the heck, I should save that configuration after all, it might make things better. What a bloody mistake. I lost 4G connectivity and my phone refused to connect to the 4G network, only 3G (just as you describe).
What worked for me in this scenario was wiping the cache and dalvik (not really sure this step is even necessary to be honest, but I was headed for a full rom re-wipe anyway and decided to try with this first), going into the hidden menu and choosing LTE only connectivity (Fulmics Tweaks -> Hidden Menu [or the hidden code for the phone app if you decided to stay on stock, which I dont have] -> Modem Protocol -> RAT Selection -> LTE only. At this step my phone got to the usual 3 to 4 bars of connectiviy but was displaying "Emergency mode only" and no data at all. I proceeded to Settings -> Networks -> More -> Mobile Networks -> Access point names -> Reset to default from the menu. If network mode doesn't change back to GSM/WCDMA/LTE auto automatically, change it back manually. At this point I had restored back my 4G connection and everything is working normally (30-32 mbps connection stationary in my house through a wifi hotspot next to my laptop).
Good luck, I would follow the steps as described just in case. I tried many reflashes before that should've worked but didn't for me. However different things work for different people, hope this works for you and please report back
engmia said:
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
Click to expand...
Click to collapse
I'd like to thank you so much for this information! I was having signal drop issue after installing Fulmics ROM. Tried to flash stock ROM but no success. After doing the downgrade via LGUP method to LP my phone is getting full signal again (at least I didn't notice any drop until now).
Thank you!
waltertakashi said:
I'd like to thank you so much for this information! I was having signal drop issue after installing Fulmics ROM. Tried to flash stock ROM but no success. After doing the downgrade via LGUP method to LP my phone is getting full signal again (at least I didn't notice any drop until now).
Thank you!
Click to expand...
Click to collapse
Glad I could be of help!
engmia said:
Okay here is what worked for me - open this guide and download the Three specifiic Lollipop and Marshmallow .kdz files.
Flash the stock Marshmallow firmware first using the LG Flash Tool method. Your phone probably won't automatically get recognized since you're running Fulmics now so you'll need to change the COM port as described in post #
After that downgrade to stock Lollipop using the LGUP method. Personally I downloaded more updated (I think, not sure) files from here.
Then I proceeded to re-root and clean install Fulmics 5.1 and the 5.2 and 5.3 OTA updates from recovery. Booted and network works without drops now with 4G connectivity.
Click to expand...
Click to collapse
Sorry for the late reply.
I followed your instructions and unfortunately it didn't work. :crying:
I first tried with the D85520f you provided and then with an updated D85521C firmware. But nothing worked.
The temporary fix, which I found works, is to ensure 4G mobile data establishes a connection first before Wifi (turn Wifi OFF then ON after data established). Then there is no signal drop until I go through a tunnel or phone restarts (signal drops completely), which means again i have to ensure 4G mobile data establishes a connection before Wifi or else it'll go back to the constant signal dropping.
Guess I'll just stick with 3G at all times. I've spent too much time trying to correct this than actually finding enjoyment in using the phone.
Anyway really appreciate the time and effort you took to help with this annoying situation. :good::good::good:
thufz9585 said:
Sorry for the late reply.
I followed your instructions and unfortunately it didn't work. :crying:
I first tried with the D85520f you provided and then with an updated D85521C firmware. But nothing worked.
The temporary fix, which I found works, is to ensure 4G mobile data establishes a connection first before Wifi (turn Wifi OFF then ON after data established). Then there is no signal drop until I go through a tunnel or phone restarts (signal drops completely), which means again i have to ensure 4G mobile data establishes a connection before Wifi or else it'll go back to the constant signal dropping.
Guess I'll just stick with 3G at all times. I've spent too much time trying to correct this than actually finding enjoyment in using the phone.
Anyway really appreciate the time and effort you took to help with this annoying situation. :good::good::good:
Click to expand...
Click to collapse
Modem 21C should be your answer! Please try with that.
Is anyone still out there
engmia said:
Modem 21C should be your answer! Please try with that.
Click to expand...
Click to collapse
I flashed dummies and get dropped 4g data like this.
I have tot back to stock and didn't help... not Kdz
Haven't downgraded yet to LP yet.
On turborom now.
Can I just flash this modem? Have a link to the 21c modem?
Flash in twrp or send via LG flash?