LG G4 Loses Network After Root and ROM Installation - T-Mobile LG G4

I recently rooted my H811 G4 (T-mobile) and then installed the latest Imperium ROM on it. Everything worked fine for three days. The only thing that kept popping up was an alert from Lookout, saying that the Imperium Settings app had riskware and wanted me to delete it. I just ignored the warning as I figured that it was being fussy over an app from a custom ROM. I also kept getting notifications to upgrade my version of Android but I ignored those too as I learned that with a rooted phone, it either won't work, or will unroot the phone. After 3 days, I suddenly lost connectivity to the T-Mobile network. Could still make calls and text over wifi, but nothing when the wifi was off. After going into the settings, it would say that the network was disconnected. I took the phone to T-mobile and they tested the sim card in another phone, to which it worked just fine. So that told me that something was obviously wrong with my handset. I restored the phone back to factory default and was able to make calls again. Imperium was still installed on it. So I went back into recovery and wiped the phone clean. After selecting to restart the phone in TWRP, I got stuck on the bootloader screen. So I downloaded LG Bridge and got it working again. I was going to wait till I got a notification to upgrade Android before rooting it again, but after 2 days, I never got it. Has anyone else had this happen? I thought Imperium was cool but I'm not thinking of just going with another custom ROM.

Musicman82121 said:
I recently rooted my H811 G4 (T-mobile) and then installed the latest Imperium ROM on it. Everything worked fine for three days. The only thing that kept popping up was an alert from Lookout, saying that the Imperium Settings app had riskware and wanted me to delete it. I just ignored the warning as I figured that it was being fussy over an app from a custom ROM. I also kept getting notifications to upgrade my version of Android but I ignored those too as I learned that with a rooted phone, it either won't work, or will unroot the phone. After 3 days, I suddenly lost connectivity to the T-Mobile network. Could still make calls and text over wifi, but nothing when the wifi was off. After going into the settings, it would say that the network was disconnected. I took the phone to T-mobile and they tested the sim card in another phone, to which it worked just fine. So that told me that something was obviously wrong with my handset. I restored the phone back to factory default and was able to make calls again. Imperium was still installed on it. So I went back into recovery and wiped the phone clean. After selecting to restart the phone in TWRP, I got stuck on the bootloader screen. So I downloaded LG Bridge and got it working again. I was going to wait till I got a notification to upgrade Android before rooting it again, but after 2 days, I never got it. Has anyone else had this happen? I thought Imperium was cool but I'm not thinking of just going with another custom ROM.
Click to expand...
Click to collapse
Modem problem. Don't waste your time. Oreo is the latest build for TM-LGG4:
https://forum.xda-developers.com/g4/development/rom-lineageos-15-1-t3806629
Need TWRP to flash.

Related

[Q] Can't connect to mibile network or wifi cant make calls or send recieve texts

Ok Kinda long but want to cover everything:
So I rooted my htc one m8 (sprint) about 6 months ago I have twrp recovery and I flashed android revolution 8. A few months later I installed android revolution 11 no problems with it what so ever. A cpl days ago I tried to flash android revolution 22 but had no luck just kept boot looping and I lost everything on my phone after some research It seems I wouldnt be able to go to kit kat 4.4.4 without going back to stock rom so I relocked my bootloader ran rom utility updater and flashed it back to stock and reset up my phone tried to flash over to android revolution again after unlocking bootloader and all that good stuff still did not work so just decided to go back to stick 4.4.4 kept bootloader locked and didn't re root my phone didn't see much of a need to at this point could only seem to use stock but anyway after a day or so of phone running just fine well today it wont connect to my mobile network or wifi (can't make or receive phone calls can't send or receive texts and am unabke to get any internet on my phone wont even connect to wif) I have even restored the phone from original back-up that I had also tried 2 other back-ups of stock roms the phone is pretty much just an mp3 player at this point sprint said everything was fine on their end nothing they can do all the icons are there for 4g and wifi and such the phone shows me its connected to sprint shows signal strength and all that so I don't know whats wrong and don't think htc will help me since I rooted it hopefully some one here can i'm
well I must be screwed if over 300 views on my post and not reply well that's what I get I guess
As far as I know ARHD is not Sprint compatible so you probably messed up your partitions.
RUU will fix it.
Only flash roms that are in the Sprint section.
Apart from compatibility off ARHD to Sprint M8 ... There is also that dreaded HTC service pack that was released on 11th Dec which screwed the network n Wi-Fi on my phone (stock Rom)
First time itty happened due to auto update install via play store and started working after I did multiple attempts at cache delete through TWRP
2nd time even after researching and knowing the service pack was the culprit I thought I should try...ending up with factory reset...so do check it
If you too had that service pack installed
Btw even htc acknowledges the sh#@ this update is causing to the phones and wants to collect more data... I don't know if anything else can be called a legit rip off or not...
BD619 said:
As far as I know ARHD is not Sprint compatible so you probably messed up your partitions.
RUU will fix it.
Only flash roms that are in the Sprint section.
Click to expand...
Click to collapse
I used ruu after I tried to flash it and messed everything up and everything worked fine after a cpl days of it working is when it started to have the networking issues I used ruu several times after and it didn't work still is there a different version I need?

[I9295] Cellular not working

Hey guys,
in the beginning, sorry for my bad english (native german). I have a problem with my I9295 aka S4 Active. Since the update to 4.4.2, my phone gets thrown out of the network. Wlan and Bluetooth is fine. Now I flashed the official Samsung DOB4 firmware. Yes, I've downloaded the file multiple times, and the md5 sum was always right. After I flashed it, I was very happy because my cellular network was working again, I could make some calls, etc. But after 20 minutes, it started again. No network. Well, my IMEI was null, and to fix it I had to root. After rooting, my IMEI is there again (yes, the right one) and everything worked fine and was still working, up to yesterday. IMEI still there, baseband too, everything seems fine, but I can't get network. I have to reboot multiple times to get it working again, after that it's working maximum a day, after that, no network again . Atm, i've flashed CM12, but the error is still occuring. I'm very desperate, I hope somebody can help me.
I have a quite similar problem:
My I9295 loses service randomly. Happens quite often.
When I try to go to Settings/More Networks/Mobile Networks I am told "No SIM ..."
SIM is in and had been active. Phono tells me I have network reception.
After reboot it works for an hour or 20 minutes or whatever it wants to.
Sometimes it reconnects after a while, sometimes not.
When I leave it on during night netx morning reconnect works only via reboot.
SIM reader had been replaced.
Problem persists with genuine 5.0.1, with this one: [ROM][Official Nightly CM12/Unofficial CM12.1][5.0/5.1.1] builds for I9295
and WizCyan ROM.
Any suggestions?
BTW I use a TWRP recovery
Possible reason explained here
http://forum.xda-developers.com/showthread.php?p=56955843
Enjoy
Thanks for the hint.
Not sure if I get this. The problem was also there with the genuine Samsung ROM (lolipop)while the thread talks aout losing modem function after flashing custom ROM.
About previous I am not sure as I bought it used with 4.2.2 on it.
I updated to 4.4 and then 5 OTA, all genuine.
Only because the mobile kept on losing network I switched to custom ROM, but the problem persists.
At the moment I use the Pac-Man ROM 5.1.1 where it seems to be more stable.
Strange!
@augek
The linked thread isn't only about custom roms - you can end up with partly flashed baseband on genuine if you don't power off before download mode and flash using Odin.
Was the replacement job of SIM reader done by a qualified person?
Following your Suggestion i flashed the genuine lollipop with odin. Yes i switched of Prior to flashing.
And Yes the Person Who did the card reader Job is qualified.
Still the Problem persists.
So to me the question is if the Firmware (driver) is the Problem of my sim card. The sim i tried on my s4mini and doesn't cause Problems so far as far as i noticed.
P****es me of somehow.

Something went horribly wrong with my Turbo!

So for some reason today, my phone restarted and now I can't call people or receive calls, if I do. My phone restarts. Also can't use Bluetooth or it also does the same and restarts what can cause this? My phone getting too hot and damaged the motherboard? When I installed a kernel it was corrupted? I really have no understanding what caused this. I had resurrection from on it. I updated it with a newer one and did a bootloop. So I put cyangemod on it and worked but noticed those huge issues. Thinking the ROM was corrupted I put rr back on it and had the exact same issues. Any help would mean everything to me
austtint said:
So for some reason today, my phone restarted and now I can't call people or receive calls, if I do. My phone restarts. Also can't use Bluetooth or it also does the same and restarts what can cause this? My phone getting too hot and damaged the motherboard? When I installed a kernel it was corrupted? I really have no understanding what caused this. I had resurrection from on it. I updated it with a newer one and did a bootloop. So I put cyangemod on it and worked but noticed those huge issues. Thinking the ROM was corrupted I put rr back on it and had the exact same issues. Any help would mean everything to me
Click to expand...
Click to collapse
How are you flashing your roms? Like, what sort of wipe, what flash order, etc.
Sent from my DROID Turbo using Tapatalk
for some reason after going back to stock which fixed everything, everytime I go back now to cm 13. I go to advance options under wiping and just check them all, and wipe. Then put the rom and gapps on then do the cache wipe. Then roboot. Afterwards, I still had the problem so I just went back to stock again.
Settings -> Apps -> gear icon -> Default Apps -> Phone app.
Make sure you set your Google Dialer to default, otherwise incoming and outgoing calls cause reboots.

supersu pro latest update killed my radio, now bricked.

Today I received a notification from supersu pro that I needed an update. After it installed it requested a restart. After restart, there was no connection to cell service nor could I turn the radio on in network settings nor were there any settings registered. I was however able to connect using WiFi from my home computer. I was running stock rom with twrp-recovery and OS h81120o for t-mobile. I tried restoring backups by twrp with no radio/network function. I installed
twrp-3.0.2-0-h811.img
android_device_lge_h811-android-5.1.zip
G4-H811-MM-20i-Stock-Debloated-Rooted.zip
G4-H811-MM-20o-Stock-Debloated-Rooted.zip
G4-H811-MM-20o-Stock-Rooted in this order with nothing different working in network connection and radio off. I finally installed LG-H81120i-Flashable.COMPLETE.zip and it said installed successful yet when restarted the phone bricked. No power on, nothing. I received than same notice for my rooted Samsung galaxy tab 4 8.1 and declined it and am still running fine there. Any thoughts?
Hey,
I was in the exact same boat and almost gave up!
Got my LG back from repair and I rooted it then made a back up, everything was working fine. Flashed a new ROM and updated SuperSU, was not able to get a signal or mobile connection after that. IMEI Number was now NULL. I tried factory reset but still nothing can get the network signal back. Even restoring back to my back up did not work.
I read that if you flashed the LG-H81120i-Flashable.COMPLETE.zip you will brick so I avoided that. I finally found the solution and maybe this will work for you.
Download LG UP and your kdz file (H81120o_00_0613.kdz was mine) on your pc.
Set phone into Download mode by pressing volume up and connect to PC.
Open LG UP and load the KDZ path file and run. Phone should reboot and come back. My signal came back after this.
I hope this method works for you.
Best of luck!

Phone won't connect to network and custom roms don't work

So I think I messed up my phone.
TL;DR: Messed up phone by removing stock rom, Costume roms don't work except 1 and in that one IMEI is set to zero and I can't connect to any network.
several month ago I had the stock xperia z Lolipop and made a decision to root the device. I unlocked it's bootloader and did the rooting... all as planned. about a month later my phone started acting funny, so I decided to reset it, the problem is I had installed TWRP and as noob in using the app, I accidentally wiped the entire device. I thought I had bricked the thing so I left it aside.
I had been using an older phone as replacement until last week when I thought I'd give the Z another chance. I looked around this forum, found a bunch of stuff, tried a lot of roms and after failing to make 4 roms work (Cyan nougat, Cyan MM, Costumised sony 5.1.1 and a stock one I found here) I managed to find a fifth one that worked (http://forum.xda-developers.com/xperia-z/general/android-5-1-available-yuga-pabx-t3054304). I always followed the tutorials but I may have done a lot of mistakes... for example I'm not even sure what kernel is and if I needed to change it for any of the roms or if I needed to like wipe the entire system or not before flashing ( I did all the time), and what about rooting? does the system require a previous rooted rom to install new ones? don't we simply format the entire device?.
Now the major problem of the working rom is that my phone can't connect to it's simcard network, the simcard is working since it requires pincode on start and the phone can find the networks by manual search, it simply gives an error "network XXX unavailable". I looked around and saw that my IMEI is set to all zero's in the phone about section. this could be unrelated to the network problem... but I don't have much expertise in these stuff.
So right now it seems like I can't install any other roms (they won't even start up, most get stuck during boot) and the only one I can install doesn't give me network access.
Any Ideas?

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