[Q] downgrade from Lollipop to Kitkat - G3 Q&A, Help & Troubleshooting

i accidentally updated my phone to lollipop and i hate it. is there any way to go back to kitkat?
i have lg g3 T mobile D851

Yes.. If you do a simple search there are many posts explaining how to do so.
Sent from my LG-D855 using XDA Free mobile app

mab71 said:
Yes.. If you do a simple search there are many posts explaining how to do so.
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
actually there are many .. but i cant fine one proper and safe and clear method.. do you have any link to that. can you please share?

Follow instructions on this link http://forum.xda-developers.com/showthread.php?t=2785089 Let me know if you have any trouble, I'll walk you through it.

I followed those for my T-Mobile D851 and it worked GREAT for 24 hours. Then eventually I lost all cell service and WiFi calling ceased. Does the revert back to stock include the correct baseband? Could it have even been the baseband that was wrong? Was I possibly using the lollipop baseband and when I reverted back to KK it didn't recognize it?

If u use the tot files all is 100% factory files baseband and all is included in the tot file and as for safe nothing is safe n e more i have had plenty of issues with all the current restore methods for the g2 and g3 i flashed a verizon twrp and a t mobile rom on my g2 for testing and got black screen of death but i restored. bassicly follow the guides for your model and rour model alone

TheMadScientist420 said:
If u use the tot files all is 100% factory files baseband and all is included in the tot file and as for safe nothing is safe n e more i have had plenty of issues with all the current restore methods for the g2 and g3 i flashed a verizon twrp and a t mobile rom on my g2 for testing and got black screen of death but i restored. bassicly follow the guides for your model and rour model alone
Click to expand...
Click to collapse
Yeah I used the tots. Was just making sure. I wonder why after about a day I lost all connectivity. I might have to try flashing back again and praying it works. I can't stand the double texts anymore.

i get double texts all the time when i use go sms when i use the stock app all was fine. asnfor connectivity i have no clue

TheMadScientist420 said:
i get double texts all the time when i use go sms when i use the stock app all was fine. asnfor connectivity i have no clue
Click to expand...
Click to collapse
Yeah stock sms app works fine but it is so ugly. It also makes me wonder why every other 3rd party app doesn't work. Seems to be something wrong with firmware or service and not app related.

Related

Need some assistance

So i have been using the universal root tool for LG optimus g for 3-4 months about two days ago, my phone signal suddenly stop working i cant use my phone to make calls or use my 3G or 4GLTE internet anymore. Only thing i can do is use my Wifi, i tried doing a factory reset and i also tried upgrading my profile but i cant do that without the phones 3G or 4G internet.
Is there a way to fix this? i dont wanna go back to my crappy htc evo 3d again
dolfinfan said:
So i have been using the universal root tool for LG optimus g for 3-4 months about two days ago, my phone signal suddenly stop working i cant use my phone to make calls or use my 3G or 4GLTE internet anymore. Only thing i can do is use my Wifi, i tried doing a factory reset and i also tried upgrading my profile but i cant do that without the phones 3G or 4G internet.
Is there a way to fix this? i dont wanna go back to my crappy htc evo 3d again
Click to expand...
Click to collapse
So by the universal root tool, do you mean fiddy's universal root? All it does is root your phone. It won't mess up your EFS.
Are you unlocked? Using FreeGee? If you were unlocked, there was an option to backup your EFS. Hopefully you did it if you were unlocked.
Go to Settings>About phone>Phone Identity. Do you have all zero's? Or do you have all kinds of different numbers there. You can learn/fix EFS here. http://forum.xda-developers.com/showthread.php?t=2161498
If you still have all the numbers for your EFS, check and make sure your Data is turned on. In the notification bar, or in Setting>More>Mobile networks.
Worse case you may need to LGNPST to fix it. You can get info on that here. http://forum.xda-developers.com/showthread.php?t=2230106 Under the Additional info.
All of this is assuming you're still on stock.
engine95 said:
So by the universal root tool, do you mean fiddy's universal root? All it does is root your phone. It won't mess up your EFS.
Are you unlocked? Using FreeGee? If you were unlocked, there was an option to backup your EFS. Hopefully you did it if you were unlocked.
Go to Settings>About phone>Phone Identity. Do you have all zero's? Or do you have all kinds of different numbers there. You can learn/fix EFS here. http://forum.xda-developers.com/showthread.php?t=2161498
If you still have all the numbers for your EFS, check and make sure your Data is turned on. In the notification bar, or in Setting>More>Mobile networks.
Worse case you may need to LGNPST to fix it. You can get info on that here. http://forum.xda-developers.com/showthread.php?t=2230106 Under the Additional info.
All of this is assuming you're still on stock.
Click to expand...
Click to collapse
Im not unlocked i just rooted my phone only
dolfinfan said:
Im not unlocked i just rooted my phone only
Click to expand...
Click to collapse
First off erase that number in your post header. Be safe.
Check those things I have posted above and tell me what happens.
Edit. So edit that post and remove the 99???????? number
engine95 said:
First off erase that number in your post header. Be safe.
Check those things I have posted above and tell me what happens.
Edit. So edit that post and remove the 99???????? number
Click to expand...
Click to collapse
From what i have been told i need to put a restore file or something before i flash my phone with the .zip from the thread u provided me with. Is that true?
dolfinfan said:
From what i have been told i need to put a restore file or something before i flash my phone with the .zip from the thread u provided me with. Is that true?
Click to expand...
Click to collapse
Well, did you check those things above? You can't flash anything unless you're unlocked. And you said you're just rooted.
If your EFS was fine and not zeroed out, you shouldn't need to fix anything. And if you unlock and then back it up, you're just backing up a bad EFS.
So following the earlier post, what were your findings. Then, where are you at now.
Sent from my LG-LS970 using XDA Premium 4 mobile app
engine95 said:
Well, did you check those things above? You can't flash anything unless you're unlocked. And you said you're just rooted.
If your EFS was fine and not zeroed out, you shouldn't need to fix anything. And if you unlock and then back it up, you're just backing up a bad EFS.
So following the earlier post, what were your findings. Then, where are you at now.
Sent from my LG-LS970 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
i think my phone is brick cant tell if its soft brick or hard brick.
PS: Its stuck at the LG symbol when you turn the phone on.
dolfinfan said:
i think my phone is brick cant tell if its soft brick or hard brick.
PS: Its stuck at the LG symbol when you turn the phone on.
Click to expand...
Click to collapse
Read in here. http://forum.xda-developers.com/showthread.php?p=43983721
It'll get you into stock recovery. You'll need to do a factory reset. It'll erase everything. Then it should boot up.
Stock recovery can be tricky to get into the first time.
Sent from my LG-LS970 using XDA Premium 4 mobile app
engine95 said:
Read in here. http://forum.xda-developers.com/showthread.php?p=43983721
It'll get you into stock recovery. You'll need to do a factory reset. It'll erase everything. Then it should boot up.
Stock recovery can be tricky to get into the first time.
Sent from my LG-LS970 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
wow it works and i think it also fixed my problem where i couldnt make any phone calls.
Edit: Sad thing now is that i need to fix this MIN, ESN, IMEI, MEID Hex & DEC zero numbers problem; that is now stopping me from activating my cell phone now which sucks

[Q] PLEASE HELP! LG G3 Bricked?

So, on Thursday I picked up an LG G3 from Verizon. I was absolutely loving it. But like most people, I wanted custom ROM's and roots and all the fun stuff you can do with android phones. I rooted my device the day I got it with IORoot. Everything is working fine at this point.
After this, i wanted a custom ROM. I found that there wasn't many for my specific model, but i did see the Sphinx G3 Neo ROM. I payed no attention to what variant it was for and loaded it up on my phone. At first, everything was working perfectly and it was butter smooth. But then I noticed whatever messaging app I tried to use would not work. I did a factory reset and then did the same process to load Sphinx on my G3. This time, messages were working, however, mobile data was not. I finally had enough of this and decided to return to the stock ROM. I found all of the stock files and was attempting to use the TOT method. I put the phone in download mode (which it won't come out of btw) and tried to start flashing. I then realized what I had done and saw that my device was reading something like D855. So when I downloaded the Verizon files it wont work. But will I be able to fix this? Have any of you had this problem before? This phone is brand new and I cannot replace it at this point. I would really appreciate it if someone could help me out.
Hi,
So sad to hear that. Have you tried TOT files from this thread?
I hope your imei is intact.
VeriLG said:
So, on Thursday I picked up an LG G3 from Verizon. I was absolutely loving it. But like most people, I wanted custom ROM's and roots and all the fun stuff you can do with android phones. I rooted my device the day I got it with IORoot. Everything is working fine at this point.
After this, i wanted a custom ROM. I found that there wasn't many for my specific model, but i did see the Sphinx G3 Neo ROM. I payed no attention to what variant it was for and loaded it up on my phone. At first, everything was working perfectly and it was butter smooth. But then I noticed whatever messaging app I tried to use would not work. I did a factory reset and then did the same process to load Sphinx on my G3. This time, messages were working, however, mobile data was not. I finally had enough of this and decided to return to the stock ROM. I found all of the stock files and was attempting to use the TOT method. I put the phone in download mode (which it won't come out of btw) and tried to start flashing. I then realized what I had done and saw that my device was reading something like D855. So when I downloaded the Verizon files it wont work. But will I be able to fix this? Have any of you had this problem before? This phone is brand new and I cannot replace it at this point. I would really appreciate it if someone could help me out.
Click to expand...
Click to collapse
I don't it is bricked per say. I do believe that the only way to solve the problem will be to do as you were trying, return it to stock with .tot files, you just need to find some information which I did see in the threads somewhere with regards to getting out of download mode.
Once you get that done and flash back to stock, then you can root again, I would suggest using Stump root, and the unlock the bootloader with Bump, and this would be a good time to make a backup with the recovery TWRP.
Be calm and read as much as possible, I hope you sort it out. Good luck.
Sent from my LG-D855 using Tapatalk
hierarchy666 said:
Hi,
So sad to hear that. Have you tried TOT files from this thread?
I hope your imei is intact.
Click to expand...
Click to collapse
Just started the download hoping for different results.
BioVolt said:
I don't it is bricked per say. I do believe that the only way to solve the problem will be to do as you were trying, return it to stock with .tot files, you just need to find some information which I did see in the threads somewhere with regards to getting out of download mode.
Once you get that done and flash back to stock, then you can root again, I would suggest using Stump root, and the unlock the bootloader with Bump, and this would be a good time to make a backup with the recovery TWRP.
Be calm and read as much as possible, I hope you sort it out. Good luck.
Sent from my LG-D855 using Tapatalk
Click to expand...
Click to collapse
I have not found ANY information regarding being stuck in download mode. Not asking for you to go digging, but if happen to find a thread about that I would be pleased if you sent it my way. I have attached some screenshots for you to see the error I'm getting.
VeriLG said:
Just started the download hoping for different results.
I have not found ANY information regarding being stuck in download mode. Not asking for you to go digging, but if happen to find a thread about that I would be pleased if you sent it my way. I have attached some screenshots for you to see the error I'm getting.
Click to expand...
Click to collapse
Can you confirm that you are using a USB 2 port and not a USB 3? Just in case...
Sent from my LG-D855 using Tapatalk
---------- Post added at 10:39 AM ---------- Previous post was at 10:30 AM ----------
Also another question, what modes are you able to boot into when holding down etc the right combination of keys?
Or does it always boot into download mode no matter what?
Sent from my LG-D855 using Tapatalk
---------- Post added at 10:42 AM ---------- Previous post was at 10:39 AM ----------
And finally, have you tried using the LG pc suite?
Please note I have not had any of these problems and so I am only offering suggestions of various things I have read while owning a G3, just makes me sad to see posts like this... Really hope you manage to get it working again... Afterall, we finally have unlocked bootloader!
Sent from my LG-D855 using Tapatalk
Went and picked up another G3 today. Thanks everyone.
VeriLG said:
Went and picked up another G3 today. Thanks everyone.
Click to expand...
Click to collapse
Probably best not to flash something again... like ever
Vivasanti said:
Probably best not to flash something again... like ever
Click to expand...
Click to collapse
Nah, just gotta pay more attention to what I'm doing. Plus, bump just came out.
I take 6 hours to find solution, must use another dll "LGUP_8974.dll"
This one let .tot file take control and don't check phone model, if someone have the same issues this can help

[Q] What is going on with my LTE (after downgrading to KK from L)??

A bit of background on my device - I have a D855 from HK. I flashed the rooted Lollipop by @Skin1980 but decided to go back to KK. While on L, my LTE didn't work. Now that I've downgraded to KK, if I have the phone set to LTE/GSM/WCDMA, the phone will boot up with LTE working. As soon as I go into the Phone Info screen to change it to WCDMA preferred, it will go on H+. If I want to go back to LTE, the phone pick up the LTE signal for half a second and then lose it. The only way I can get it to get back on LTE is if I reboot the phone.
The reason I do this is because I get a better H+ signal in most places than I do the LTE signal so I leave it on H+ to conserve battery life as I'm mostly on wifi and I change it to LTE when I need to download large files when I'm not on wifi.
I have already flashed the KK Modem file that was provided by @Skin1980. This never happened before I upgraded to L and then downgraded back to KK. Does this happen to anyone else who has downgraded and does anyone know how to fix this?
Try flashing the kk modem a couple more times, for some reason modems can be a bit tricky and dont always flash properly, can some times take several flashes before they seem to stick
if this doesnt work then maybe the modem is for the international d855 and not for the hk rom your using?
Sent from my LG-D855 using XDA Free mobile app
rosso22 said:
Try flashing the kk modem a couple more times, for some reason modems can be a bit tricky and dont always flash properly, can some times take several flashes before they seem to stick
if this doesnt work then maybe the modem is for the international d855 and not for the hk rom your using?
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
I tried installing it several times but it didn't help. I wasn't aware there was more than one modem for different regions. I was always on an HK modem before and it works here in the UK. But after I applied the KK modem skin1980 provided for downgrading to KK from L, I started seeing this issue.
If I turn the radio off and then back on, it'll lock onto an LTE signal some of the time. But if I set the modem to LTE only, it will find the LTE signal for half a second, then lose it and cannot find it again....
Well it sounds like the same sort of problem some get using the lp modem on kk rom, maybe try installing a custom rom like cloudy if your models supported, failing that try a full wipe and flash kdz again
Sent from my LG-D855 using XDA Free mobile app
Japultra said:
A bit of background on my device - I have a D855 from HK. I flashed the rooted Lollipop by @Skin1980 but decided to go back to KK. While on L, my LTE didn't work. Now that I've downgraded to KK, if I have the phone set to LTE/GSM/WCDMA, the phone will boot up with LTE working. As soon as I go into the Phone Info screen to change it to WCDMA preferred, it will go on H+. If I want to go back to LTE, the phone pick up the LTE signal for half a second and then lose it. The only way I can get it to get back on LTE is if I reboot the phone.
The reason I do this is because I get a better H+ signal in most places than I do the LTE signal so I leave it on H+ to conserve battery life as I'm mostly on wifi and I change it to LTE when I need to download large files when I'm not on wifi.
I have already flashed the KK Modem file that was provided by @Skin1980. This never happened before I upgraded to L and then downgraded back to KK. Does this happen to anyone else who has downgraded and does anyone know how to fix this?
Click to expand...
Click to collapse
delete the lteconfig files from system/app or system/privapp
suljo94 said:
delete the lteconfig files from system/app or system/privapp
Click to expand...
Click to collapse
Thanks for the suggestion but unfortunately, this didn't work.
rosso22 said:
Well it sounds like the same sort of problem some get using the lp modem on kk rom, maybe try installing a custom rom like cloudy if your models supported, failing that try a full wipe and flash kdz again
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
That's my last resort, but I guess I'll have to try it. Thanks.
rosso22 said:
Well it sounds like the same sort of problem some get using the lp modem on kk rom, maybe try installing a custom rom like cloudy if your models supported, failing that try a full wipe and flash kdz again
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
I just did a CSE flash and the problem still persists.... Are there any other options I haven't thought of to do?
Dunno then, try the custom rom route maybe, or possibly its the kdz your using, might be wrong one, when i went back to stock before i downloaded mine from the lg site where you put your imei number in so you get the exact firmware for your phone, not sure of the link for the site though sorry matey
Sent from my LG-D855 using XDA Free mobile app
rosso22 said:
Dunno then, try the custom rom route maybe, or possibly its the kdz your using, might be wrong one, when i went back to stock before i downloaded mine from the lg site where you put your imei number in so you get the exact firmware for your phone, not sure of the link for the site though sorry matey
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
That's actually the version I flashed. Thanks for your help.

Verizon g pad missing update center

I was trying g to use qpair and it told me to update via the update center. The only problem is I don't have the update center on my pad, I even looked in system/privapp/ and there was no lgupdatecenter.apk, could someone please upload the app along with the odex file.
jsminnis said:
I was trying g to use qpair and it told me to update via the update center. The only problem is I don't have the update center on my pad, I even looked in system/privapp/ and there was no lgupdatecenter.apk, could someone please upload the app along with the odex file.
Click to expand...
Click to collapse
Which variant of G Pad 8.3 do you have? VK810? V500? V510? I think there's at least one more model.
Vk810 4.4.2 stock rooted
Sent from my VK810 4G using XDA Free mobile app
Do you think rooting it with stump straight out of the box did it?
jsminnis said:
Vk810 4.4.2 stock rooted
Sent from my VK810 4G using XDA Free mobile app
Click to expand...
Click to collapse
I'll be able to get upload it for you but not until later today.
Sent from my VK810 4G
roirraW "edor" ehT said:
I'll be able to get upload it for you but not until later today.
Sent from my VK810 4G
Click to expand...
Click to collapse
Thank You, I see on the other threads you are very helpful. I have been rooting/roming since the droid 1 but with every device it's always something new.
I was allready rooted, but by searching the threads I was also able to downgrade my aboot to 4.2.2 and then flash twrp and make a backup, I feel much safer now as far as tweaking etc.
jsminnis said:
Do you think rooting it with stump straight out of the box did it?
Click to expand...
Click to collapse
That's a good question. I'll have to keep my eyes open.
jsminnis said:
Thank You, I see on the other threads you are very helpful. I have been rooting/roming since the droid 1 but with every device it's always something new.
I was allready rooted, but by searching the threads I was also able to downgrade my aboot to 4.2.2 and then flash twrp and make a backup, I feel much safer now as far as tweaking etc.
Click to expand...
Click to collapse
I haven't had a chance to restore my stock backup yet, been a hell of a day trying to get new official stock Lollipop to behave on my wife's phone. I won't digress further.
I'm going to clear space on a USB OTA flash drive now to make a fresh nandroid, then I can restore 100% stock and get that for you.
And thanks for noticing! *blush* LOL!
Sent from my VK810 4G
jsminnis said:
I was trying g to use qpair and it told me to update via the update center. The only problem is I don't have the update center on my pad, I even looked in system/privapp/ and there was no lgupdatecenter.apk, could someone please upload the app along with the odex file.
Click to expand...
Click to collapse
Okay, here's where we're at... First, your system settings menu doesn't have the System Updates menu, right? Like this:
Edit: argh, attachments not working right for me via Tapatalk.
Edit 2: attachments in the next post. If these don't provide what you need, we'll have to do some experimenting.
These were the only system files I could find related to updates:
Attached in a non-flashable zip.
Sent from my VK810 4G
Here are the attachments meant for the previous post.
Sorry for the confusion but I do have that screen. Qpair tells me to updatevia the update center. So after searching xda I was under the impression that there was supposed to be an update center app on my tablet that was preloaded by LG. Then in that update center app it's supposed to have app updates for the LG apps. I will post screenshots of my error when I try to use qpair.
The update center apk should be in system/priv_app/lgupdatecenter.apk
jsminnis said:
Sorry for the confusion but I do have that screen. Qpair tells me to updatevia the update center. So after searching xda I was under the impression that there was supposed to be an update center app on my tablet that was preloaded by LG. Then in that update center app it's supposed to have app updates for the LG apps. I will post screenshots of my error when I try to use qpair.
The update center apk should be in system/priv_app/lgupdatecenter.apk
Click to expand...
Click to collapse
That's okay. I expected that to be the case.
I too haven't found any app in the app drawer or apk in priv-app. What I found I searched for "update" in my file manager, plus the OTA-related one I spotted.
I'm going to do some digging into the pre-Stump'd 23A and see if I have any better luck. What I'm running now is a restored nandroid I had saved of completely stock, no SuperSU, but I didn't specifically note and I'm not sure if I had Stump'd this copy. Obviously I had to have Stump'd to get rooted in the first place, but this time around, anyway, I merely wiped the device, restored only the System (I had only backed up that and Boot) and then flashed the latest SuperSU.zip to root it but my memory is hazy on what I had done to make a nandroid on as pure stock as I could.
I've got some ideas to try a definite pre-Stump'd copy and I'll give you an update when I get anywhere.
I apologize for being so wordy. [emoji6]
I just wanted to check, you are on 23A, right?
Screenshots in the following post.
Sent from my VK810 4G
Sent from my VK810 4G
So I guess the next question is, how do I update qpair? Or maybe it just doesn't like my htc m8? ? Thanks for trying anyway.
jsminnis said:
So I guess the next question is, how do I update qpair? Or maybe it just doesn't like my htc m8? ? Thanks for trying anyway.
Click to expand...
Click to collapse
Are you on 23A? Sure! I haven't given up, just been busy. I was going to try Googling the problem. Also, where exactly did you find the name of that apk?
Sent from my VK810 4G

[MODEM]/[RADIO] [20B] TMO D851 LG G3 Lollipop Only

I was having a problem trying to find the modem for my D851 here on XDA. There were many plainly listed for D855 and other models of the G3. I am using Paranoid/ASOP 5.1.1 Rom and I accidentally flashed a D855 radio. Rookie mistake, I know... And thought I backed up the modem along with the system files. Well I didn't and lost my imei, apn, signal and all... So while searching and again not obviously placed easy to find I read a thread and found one, flashed it, and it returned everything to normal without having to flash back to stock rom and blah blah blah... From what was listed, this for L 5.0 and up.
1. Boot phone into recovery, preferably TWRP
2. Flash the modem zip DOWNLOAD: https://www.dropbox.com/s/xz26z91hej9ryz3/LGD851.20B.MODEM-iNb4TMO.zip?dl=0
3. Reboot
I didn't make the radio, nor take any credit for its creation. I'm just trying to make it easier for T-Mobile D851 users on Lollipop to find incase they have deleted or lost theirs like I did...
I am not responsible for any issues or problems that may be encountered by using this.
I hope this help those in need like it helped me... Please let me know...
Im currently having a major issue with the lollipop update. I had my d851 with t mobile and I wouldn't lose lte when I would make a phone call... I currently switched to metropcs and now when I make a phone call I lose lte and my signal drops to 4g. I tried everything... APN, restoring the phone, called metro like a thousand times and nothing. Any help would be greatly appreciated.
Tito622 said:
Im currently having a major issue with the lollipop update. I had my d851 with t mobile and I wouldn't lose lte when I would make a phone call... I currently switched to metropcs and now when I make a phone call I lose lte and my signal drops to 4g. I tried everything... APN, restoring the phone, called metro like a thousand times and nothing. Any help would be greatly appreciated.
Click to expand...
Click to collapse
Make sure you have volte enabled.
That's on too.
RussianBear said:
Make sure you have volte enabled.
Click to expand...
Click to collapse
I actually have the same issue, how do you enable volte?
firemedic0911
Model: T-Mobile D851/LG G3
Rom: Paranoid ASOPL
Version: 5.1.1
Build: May 28th, 2015
Sent on XDA Mobile Pro
firemedic0911 said:
I actually have the same issue, how do you enable volte?
firemedic0911
Model: T-Mobile D851/LG G3
Rom: Paranoid ASOPL
Version: 5.1.1
Build: May 28th, 2015
Sent on XDA Mobile Pro
Click to expand...
Click to collapse
Go to options - call.
Guys, what's the current latest radio version for our phone and does anyone have a link?
Tito622 said:
Im currently having a major issue with the lollipop update. I had my d851 with t mobile and I wouldn't lose lte when I would make a phone call... I currently switched to metropcs and now when I make a phone call I lose lte and my signal drops to 4g. I tried everything... APN, restoring the phone, called metro like a thousand times and nothing. Any help would be greatly appreciated.
Click to expand...
Click to collapse
did you ever figure this out or did you get a new phone?
psantos1091 said:
did you ever figure this out or did you get a new phone?
Click to expand...
Click to collapse
Flashing the 30D modem seemed to help quite a bit, the signal will drop to 4g while you're on a phone call but the data is alot faster. Give it a try, it worked for me.
Tito622 said:
Flashing the 30D modem seemed to help quite a bit, the signal will drop to 4g while you're on a phone call but the data is alot faster. Give it a try, it worked for me.
Click to expand...
Click to collapse
Where do you get the 30D modem?
kfcherry said:
Where do you get the 30D modem?
Click to expand...
Click to collapse
Here is one place:
https://forum.xda-developers.com/tm...ock-d851-30d-kdz-flashable-zips-imgs-t3367371
christoophat said:
Here is one place:
https://forum.xda-developers.com/tm...ock-d851-30d-kdz-flashable-zips-imgs-t3367371
Click to expand...
Click to collapse
Well, I went camping over the weekend and of course the phone dropped service again. The cell signal was weak and the data was almost non-existent. Luckily I brought an old phone, re-activated it, and was good with LTE signal. My question is would flashing a different modem help? I have the LG-D851 with SW version D85130e so I assume that has the 30e modem. Is that correct and would the 30d modem be better? Thanks.
kfcherry said:
Well, I went camping over the weekend and of course the phone dropped service again. The cell signal was weak and the data was almost non-existent. Luckily I brought an old phone, re-activated it, and was good with LTE signal. My question is would flashing a different modem help? I have the LG-D851 with SW version D85130e so I assume that has the 30e modem. Is that correct and would the 30d modem be better? Thanks.
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No idea. Could be something else (mechanical) causing the issue. 30e is the latest for our phones. You can also drop it down to 30d & see if it is any better.
christoophat said:
No idea. Could be something else (mechanical) causing the issue. 30e is the latest for our phones. You can also drop it down to 30d & see if it is any better.
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That's what I was hoping to do but was trying to see if there was a way to just install the 30D modem instead of loading the entire phone with the older SW version and having to re-install all of my apps. I downloaded the modem file but after doing some research I couldn't figure out the procedure to install it. I saw a few videos about a TWRP recovery but I prefer not to root my phone. If I have to root it in order to get it working then I will...I just wish I could figure out what the issue is. I saw a few other people mention issues with the LTE setting defaulting back to WCDMA/GSM (which I experience) and they said the 30E modem could be the issue. The phone was just wiped clean a few months ago before I bought it from the previous owner.
kfcherry said:
That's what I was hoping to do but was trying to see if there was a way to just install the 30D modem instead of loading the entire phone with the older SW version and having to re-install all of my apps. I downloaded the modem file but after doing some research I couldn't figure out the procedure to install it. I saw a few videos about a TWRP recovery but I prefer not to root my phone. If I have to root it in order to get it working then I will...I just wish I could figure out what the issue is. I saw a few other people mention issues with the LTE setting defaulting back to WCDMA/GSM (which I experience) and they said the 30E modem could be the issue. The phone was just wiped clean a few months ago before I bought it from the previous owner.
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yeah without having root, your options are limited. If you own the phone, I would say go for it, if you are leasing it, then take it back to where you got it & tell them it's reception sucks.
I own it and bought it second hand. According to the previous owner he didn't have any issues with it but who knows. I assume if I root it and load the 30D SW I will have to load everything from scratch? Is there an LG backup program for this phone? Thanks for the help.
Restore from SD card
From any home screen, tap Apps.
Tap Settings.
Scroll down to 'DEVICE,' then tap Backup & reset.
Tap LG Backup service > Backup & restore.
Tap Restore from backup.
Locate and tap the SD card backup.
Tap Next.
Review the warning information, then tap OK to confirm.
---------- Post added at 12:51 PM ---------- Previous post was at 12:45 PM ----------
I have the TMo version (D851) & the first thing I did was root it & install a custom ROM to get rid of all the Tmo crap that is stuck onto it. ugh! I don't use my phone all that much for calls, mostly emails data & music playing, so losing the stock Wifi Calling function wasn't an issue for me. Currently on the OctOS Nougat weekly builds, tremendous ROM, great battery life fast & smooth & decluttered. Since you already own the phone & do not have a warranty, you've nothing to lose here. Do some reading in the threads on how to do it, you'll be very happy once you see how much better your phone can be. You put on it only what you want to put on, less junk, less memory hogging.

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