My G3 got a boot loop problem, and before solving it (new battery) I unrooted it to the stock firmware. The only problem is, is that with that firmware, along came random foreign apps (polish and french apps) and also apps for a totally different network provider in another language. I re-rooted my phone and got it to 6.0, but everything else came with it. Since this original firmware change, my mobile data has been limited to "H", when usually it goes to "H+" and 4G. I've been having sim problems with my network provider and it is yet to be resolved.
What I'm asking help for is, to get rid of the random apps, get my original network provider apps on the phone, and to fix the limited mobile network.
Thank you!
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Hi Guys, I have a E988 HK version 10D Stock Rom. I found the signal is not stable at all.
As my mobile carrier does not support 4G, so have seleted the network to 2G/WGCDMA.
I found the phone lost signal completely and then it has an error saying sim invalid, but when I reboot the phone, the signal became good again. This is very painfu as I needed to reboot my phone a few times a day.
Can someone give me an idea please? Thanks.
Sounds like modem problem try to install a different stock rom or a new modem
My phone started turning on and off its 3g connection. Wifi works solid.
I'm on a good signal area. It's not like the 3g is on and I can't connect in anything.
The problem is that the phone turns on and off. It doesnt fix the 3g connection.
Also, Checkin service it's draining the battery a lot.
Looks like a software problem with Google Play Services and its Connection checking service.
Anybody have seen this problem?
thanks in advance.
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
alfablac said:
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
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Click to collapse
I have random disconnects/drops too, Although my 3G/LTE icon never actually goes away, just the signal.
Personally I would suspect your modem as #1 suspect.
Factory reset rarely fixes much, I would try re-flashing the phone.
If KDZ flash doesn't fix it maybe try a tot & dll flash using LG Flash Tools with modified megalock.
It definitely looks like a modem issue BUT it can be a your os. I had issues where my modem wouldn't flash from a stock flash on my S4, But manually flashing my modem would SOMETIMES work, I would have to flash the modem a few times usually before it would actually flash.
I had problems before but it was caused by network. Did you tried with different SIM card from other network?
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
viniciuscordeiro said:
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
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Click to collapse
Just try with other network SIM. I had same problem long time back with Nokia n96, Motorola defy and some other phones. Some of time it helped to set phone only to use 2g network. That was happening the most of time when i used VIP network in Serbia.
Setting only 2g signal helped sometimes but after changing SIM card, problem was solved.
This problem happen to me without reason and after some time i tried same network again, there was no problems.
Probably a different SIM will correct the problem, because after a lot of trial and error changes I realized that the current Network APN (you can reach going on Mobile Networks inside Connections and Networks [translation] in the Settings) was faulty. I deleted the APNs and made a restore. (Delete and Restore are the only options inside Network APNs).
I imagine that changing SIM cards from another carrier will reconfigure the APNs and probably fix the problem.
I´ve tried a different SIM card and didn´t found any troubles, but when I put mine, the problem come back again... So it´s a problem with my carrier. I´ve deleted the APN settings, restart, restore, restart again and didn´t solve. I´ll call them to check if they are experiencing any network issues.
Im using a D855 LG G3 running the bumped v20F stock firmware (see the android dev thread) with no issues except this one...
Im currently in singapore using a SIM card that supports 4G on a network that has good 4G coverage (M1) but i simply cannot get LTE/4G to work at all.
Ive tried the WCDMA/LTE/GSM/Auto in mobile settings and it always without fail sticks on "H". Via the hidden menu i select "LTE Only" and i get no data connection icon (or data) at all.
Searching the mobile networks ive tried manually selecting the M1 advertising as LTE on the list but the same thing - it defaults to "H" and wont shift off there.
The APN im using is the one advertised by M1 for 3G and 4G coverage.
I dont think this is a ROM problem hence posting it here but ive got no idea how to solve it. Anyone got any ideas what else i can do/change or check ?
Other than rooted, the stock ROM is not modified or customised in any way - it was a factory reset, clean install.
Similar issue in Argentina, with 20b on my D855. Tried using the 3845#855# code, selecting even the LTE only thing, but nothing, no LTE. SIM card and service is working right (tested on a Nexus 5).
Any thoughts would be appreciated.
alex_herrero said:
Similar issue in Argentina, with 20b on my D855. Tried using the 3845#855# code, selecting even the LTE only thing, but nothing, no LTE. SIM card and service is working right (tested on a Nexus 5).
Any thoughts would be appreciated.
Click to expand...
Click to collapse
Try reinstalling LTEConfigs.apk under system/app
Unfortunately, I can't root or flash anything on this phone until I know it can use our LTE bands, or should I return it. Any other way?
I bought a new logic board 2 days ago after i hard bricked the older board. I rooted this new board which, installed twrp sucessfully. I have tried almost everything including going to stock by tot method, burning modem.bin file and currently i have installed cloudy g2 rom but no success it keeps on searching for network. When i manually search for networks it shows me all available 2g or 3g networks but doesnt registers on any of them. It is showing my IMEI also means no efs issues. I have changed even another antenna but still problem remains... please some one help me i really dont know whats wrong... My phone is ls980
Hi everyone, good morning
I pose this problem ...
I updated my GT-N7100 from the stock version 4.4.2 to 7.1 RR, which is why the phone was no longer lit. The Samsung word appeared looping at its ignition and no reset options worked.
All after the battery suddenly abandoned me!
After the upgrade, unfortunately the mobile network is no longer detected, or rather, the phone does not hook up the signal even if mobile networks are detected (select networks, Vodafone, Tim, Wind, Tre).
If I try to hook my network manually (Tim), the error is the inability to record.
I checked IMEI and is present, and, as mentioned above, networks if you look manually are seen.
I've downgraded to version 4.2.2 to figure out if the problem was about rom, but even with this version the network is not hooked up.
I also tried with other sim, but nothing in fact.
Unfortunately the backup I made did not go well and did not save the files in the EFS folder .... the badge sees us well !!!!!
Do you have any suggestions?
I also tried to reflect the rom Viper, but no change in the network ...
What other tests could I do? Thank you all!