Unable to connect to mobile networks - LG Optimus 3D

Greetings, I have created an account in order to seek help directly.
I received a LG P920 phone already rooted on ICS 4.0.4
At this time mobile networks worked and the phone was able to make calls and such. I did a factory reset which led to a recovery-loop so I followed this
http://forum.xda-developers.com/showthread.php?t=2228269
I then obtained CWM 6 using this
http://forum.xda-developers.com/showthread.php?t=2144738
And finally decided to flash Cyanogenmod 11 unofficial
http://forum.xda-developers.com/optimus-3d/development/rom-t2929971
It was at this point that I realized I couldn't connect to networks at all, thinking maybe the ROM was faulty I went for the official CM10 rom (the last nightly available on cyanogenmod), but that did not work either. Tried returning to ICS (v30a) but I couldn't connect to networks.
I've searched a lot of guides to recovering mobile networks but the catch is that most of them talk of lost IMEI numbers, which my phone hasn't lost. I looked into using LG flashtool aswell but all links are broken, be it for the software, the crack or the dll I need to have.
I'm at a loss right now, most of the guides I've seen here are for different purposes other than just getting the mobile networks going.
The SIM card works on another phone. Also, when trying to enter the password it will at times accept anything or not accept anything at all, even if it's the right code. If I search networks, they will be found but I'll just get 'Can't connect to this network right now'
My Baseband reads LGP920AT-00-V30a-EUR-XXX-APR-04-2013 and I'm currently on CM10
update: I have been informed by the previous owner that this phone hasn't been SIM unlocked, which is probably the problem here. Obviously this wasn't going to be so easy as I obtained the code and attempted to unlock it, but for some reason the process was unsuccessful. guess I'm still lost
Thanks in advance

Related

[Q] Custom ROMs/install guides for XT1028?

After months of being stuck on my Verizon Moto G with a locked bootloader, I finally managed to obtain freedom via the recent update to the SunShine app from jcase. My phone was having some issues prior to unlocking, and it took me several hours of labor and installing/reinstalling things to finally get TWRP and any ROM going properly. I've worked with Android tablets and custom ROMs before, but this is my first time on a Verizon phone.
I managed to get the N5X ROM installed and running, but I couldn't seem to resolve issues with data/mms, which I presume are APN related; trying to enter new APN settings in that ROM wouldn't save for whatever reason, either. For now, I'm back on an optimized stock 4.4.4 image until I can get that figured out.
My question: Is there any list of custom ROMs that do specifically work with a Verizon CDMA/XT1028 Moto G? Does anyone have a guide to getting these ROMs working on Verizon prepaid service, including any APN adjustments that need to be made? Thanks.
Followup: Still trying to figure this out, but the N5X ROM will give me working data if I enable Data Roaming. I've attempted to update the PRL for Verizon via *228, but the phone status still shows as roaming even though my PRL has been updated, displaying my network as T-CDMA 64. Is this simply an issue with my phone not properly identifying roaming/non-roaming due to the custom ROM? Verizon has the best coverage in my area, so I want to make sure it is connecting to the proper towers (and I'm not ACTUALLY roaming). Thanks.

[Q] Network unlock code / Koodo stock firmware

After failing at installing a new ROM, I tried to restore my phone to complete stock and now I'm having more issues. Upon booting the phone, I get prompted with a screen asking for a SIM Network unlock pin. I am able to dismiss this screen by clicking the "dismiss" button and continue using my phone normally, but it refuses to connect to any network. I've tried using different SIM cards in the phone, but it is still not working. Furthermore, I am unable to find a koodo version of my firmware, because the only site that supposedly distributes those (the droid developers website) is down. If any one could find a mirror for a download or a solution, feel free to post it!
Many thanks!

[Completed] No signal after flashing rom

Hello.
This is not an urgent issue sincee i have set up voip alternatives, but id' like to see it resolved anyway for curiosity and convenience/payment reasons. So here's the deal. i'm on a rooted g3, with cloudyfa's lollipop rom and the latest version of twrp. the device was ATT unlocked, and I intended to use it later with a tracfone sim card on the byop program. anyway, after flashing the rom i didn't get any signal bars at all anymore. i tried reflashing the kitkat [At that time i downgraded to 4.4.4again and lost signal], lollipop broadbands for my device, the latter even also being released by cloudyfa. i tried goping into the network settings and, since apn's are out of my range, just searched for service providers. i tried everything and still nothing. yet when i downloaded an app to manage my voip, it said my signal was great. what is this?Can my phone still be saved?
XDA Visitor said:
Hello.
This is not an urgent issue sincee i have set up voip alternatives, but id' like to see it resolved anyway for curiosity and convenience/payment reasons. So here's the deal. i'm on a rooted g3, with cloudyfa's lollipop rom and the latest version of twrp. the device was ATT unlocked, and I intended to use it later with a tracfone sim card on the byop program. anyway, after flashing the rom i didn't get any signal bars at all anymore. i tried reflashing the kitkat [At that time i downgraded to 4.4.4again and lost signal], lollipop broadbands for my device, the latter even also being released by cloudyfa. i tried goping into the network settings and, since apn's are out of my range, just searched for service providers. i tried everything and still nothing. yet when i downloaded an app to manage my voip, it said my signal was great. what is this?Can my phone still be saved?
Click to expand...
Click to collapse
Greetings,
Thank you for using XDA Assist.
First, have a look at your device's homepage found here:
AT&T LG G3
Most of the helpful guides and information you need can be found in the General Forum located there. If you create an XDA Account, you can post your questions in the Q&A forum also located there.
Good luck and welcome to XDA!

Weird Connection Issue - Two AT&T Connections

I'm having a super weird issue with my OPO. No matter what I do (install different OS, flash new modem, complete wipe including formatting drives to a different format type) I keep getting two AT&T connections on my phone. *Can't post image due to post restrictions*
I am using a WIND sim from Canada with roaming in the US. I used to be able to connect to my choice of either AT&T or Tmobile. Now when I try and connect to one of those carriers, it flashes registered on network but then does not change what network it is registered on. I've tried disconnecting from the network and then trying to connect. Nothing! The only network it will let me connect to is that weird extra AT&T network, and all call through it have no caller ID, just says call from AT&T.
Any ideas of what this could be would really help me out. I'm all out of ideas
Update - After uninstalling and re-installing everything I could think of, I am now running on CM11. If I update through OTA to CM13 the problem returns.
Update 2 - In case anyone else encounters this issue, after a whole lot of work, including softbricking my phone, I managed to get it working. You must install TWRP Materialized and install the 44S baseband. No other recovery will work, must be Materialized. After I installed the 44S baseband I updated to Omnirom 6.0 and everything is working great!

Lost 4G(LTE) connectivity after latest official update

Hello guys,
I am losing my mind here so I kindly ask for help. I aint no expert in flashing roms or anything, I have a stock Redmi 6 and yesterday I got a pop up about updating my phone. I selected yes and my nightmare begins.
Since then, I cant get the phone to connect via mobile network. I cant get any connectivity of any type using mobile data.
The phone is a Redmi 6, android version is 8.1.0 O11019 and rom is MIUI Global 10.2 Stable 10.2.3.0 (OCGMIXM).
Please help the noob get his phone back, I am about to throw it away
There is an update miui_HM6Global_V10.2.4.0.OCGMIXM_f662ddbe15_8.1.zip
http://ru.miui.com/thread-24171-1-1.html
thanks for your reply, updating to 10.2.4.0.OCGMIXM didnt resolve the issue.
Still no 4G.
Any other ideas? Please I am desperate
Head to" about phone" (in settings ) tap " internal storage " multiple times to enter phone info
Then head over to change network settings to LTE only or enable one with LTE as a possible option if you've disabled it by mistake
Also check which slot your sim is in ...
May not work if sim is in secondary slot and 4g is disabled for it
Let me know if it worked !
Cheers !
Thank you for your reply my friend.
I have tried all these things, they were the obvious ones, so I went with them first. Nothing works, phone is unable to connect to 4G. I have flashed multiple times in case it was a bad flash, I even downgraded to a Developers Rom, but nothing works.
Funniest thing of all, I contacted Xiaomi UK customer services today, and after trying various *# codes, and the guy asking me to turn the phone off and then on again, he ended up saying that I need to wait for the next update.
It is insane

Categories

Resources