LG G8 (LM-G820UMB) for Verizon US unlocked - problem while using in UK/Europe - LG G8 Questions & Answers

Hi all
I've spent last hour to try find answer for my problem in xda forum, without success. I hope that someone could shed more light and then I will know where to dig in (maybe ROMs, kernels etc)
I don't want to put this thread in general questions about LG G8, as I have feeling that if there is a solution it will be in this subject.
I just received my phone today (ordered via ebay from China) and 1st impression was that it's locked as information appeared "SIM card in not from Verizon Wireless" and there was no network conenction. However after digging and contacting Verizon directly I got confirmation that phone is unlocked.
In the meantime I've noticed that it gets some very weak signal now and then. After some more digging I get to conclusion that this version of the phone is not comaptybile with band frequencies here in UK.
Can someone tell me if this is the issue and if there is a solution for it? Is it software thing or hardware and I can forget about using this phone normally?
Details of the phone:
Andriod: 10
Soft version: G820UM20j
Model number: LM-G820UM, this is from phone settings, but I think it should be "B" at the end for Verizon?!
Thank you in advance for sharing your thoughts.
Kind Regards
Tom

Related

Unlocking SonyEricsson SO903i

My girlfriend came back from Japan a few months ago and while she was there she bought a cell phone. This is partially my fault since I told her that if it had a SIM it could be unlocked and used in the US. Mostly true, right?
The problem is she went and bought a brand new phone that was recently released in Japan and I cant find a way to unlock it.
Does anyone know how to unlock this phone? Is there something specific I could use for SonyEricsson or is there a general unlock?
Its branded NTTDoCoMo FOMA. Its a sick phone, I just wish she could use it here.
Any help would be great.
Thanks in advance
Is Sony using WM?
OK when she got the phone did she ask for it to be enabled for roaming?
Have you asked the provider to unlock the phone for you?
The provider will ususally do one or the other.
If you are looking for a software solution you've come to the wrong place.
Its a Quad Band phone so it should work here. I'm not sure I understand why it would have to be roaming enabled. We dont want to roam, that would be expensive; we want to unlock it and use it with T-mobile.
Japanese providers will not assist you in any way to unlock a phone, its almost taboo to ask. When I was in Japan I asked how I could use a GSM Quad Band in the US and all they would say is it cant be done. Untrue because I know people who have Japanese phones in the US.
I'm not looking for a software solution, but if anyone knows where I could find software that might help that would be cool. I'm just wondering if anyone knows how to unlock this phone or knows how to unlock any SonyEricsson as it might be similar.
And are you asking if Sony is using Windows Mobile? If so, no they aren't. Are these forums only for WM?
My fault.
Upon further research I answered my own question.
It's actually not a GSM phone as I initially thought. Its a CDMA phone that uses a UIM card that is identical to a SIM card.
Solved
This is a GSM phone u can find IMEI number INa CDMA set u get ESN number not IMEI this phone is a GSM brand phone working on some other frequency. This can be unlocked using T-Sim but can't get network in your country.

[HELP] How do I get UMTS(1700+2100) USA T-Mobile

I hope is not a noob question, I searched and found nothing about this problem!
At the phone band options I have:
Auto
*UMTS(900+2100)+GSM(900+1800)
*UMTS(850+1900)+GSM(850+1900)
*UMTS(800+2100)
*UMTS(850+2100)+GSM(900+1800)
*UMTS(850)+GSM(900+1800)
*UMTS(1700)
The question is how do I get UMTS(1700+2100)+GSM(850)????????
If anyone knows how please help me, I can't get the 3G to work
The Diamond I have is made in Taiwan and a bought it at an T-Mobile shop!
mushufasas said:
I hope is not a noob question, I searched and found nothing about this problem!
At the phone band options I have:
Auto
*UMTS(900+2100)+GSM(900+1800)
*UMTS(850+1900)+GSM(850+1900)
*UMTS(800+2100)
*UMTS(850+2100)+GSM(900+1800)
*UMTS(850)+GSM(900+1800)
*UMTS(1700)
The question is how do I get UMTS(1700+2100)+GSM(850)????????
If anyone knows how please help me, I can't get the 3G to work
The Diamond I have is made in Taiwan and a bought it at an T-Mobile shop!
Click to expand...
Click to collapse
You can't without soldering RF amplifiers from a G1 to handle t-Mobile UMTS frequences.
Actually editing the Radio ROM would do so. I contacted jockyw2001 awhile ago about doing so and he said that there are no tools currently available for us to edit the chipset microcode in order to do so, even though the rest of the process is supposedly easy.
what ROM have you
Hello you wrote
At the phone band options I have:
Auto
*UMTS(900+2100)+GSM(900+1800)
*UMTS(850+1900)+GSM(850+1900)
*UMTS(800+2100)
*UMTS(850+2100)+GSM(900+1800)
*UMTS(850)+GSM(900+1800)
*UMTS(1700)
I wish to have this options too. What ROM is that who support all the one above ..
THANKS

[Q] Signal Randomly Drops to 0 - Please help!

Hi,
I was wondering if anybody could help me. I have an HTC Desire HD which was originally on the 3 UK network but, I got the unlock code as I am on Talk Mobile UK (The Carphone Warehouse company Operated by Vodaphone).
I have noticed that randomly the phone's signal will drop to zero and I must restart it in order to get the signal back. I've tried putting it into Aeroplane mode and then taking it out again to see if that helps but to no benefit. I've tried leaving it for about an hour to see if it kicks back in but again nothing. The phone is not rooted or anything like that and there are no updates on the HTC website so, I am confused why my phone does this. Is anybody able to shed some light on this issue and let me know how to fix it? I've put some pictures here:
htt ps://ww w.dropbox.com /sh/g4d6trog9ms0u4k/6bscDXu9qT
If that helps demostrate the radio working and no working. It also shows details about the Radio which I am using.
Any help would be most appreciated.
Many Thanks.
Did it function like this before it was unlocked? Maybe you need an updated radio?
Hi,
The phone was bought second hand and the day I got it, I unlocked it so never actually used it on 3 UK. I thought the radio might be the issue to but was hoping someone could confirm if thats how to rectify the issue.

[Q] What's the cutoff point for ROMs to unlock the SIM?

OK, so I have an opportunity to get an LG G5 LS992 Sprint model today for a decent price (under $60), with box, original cable, charger, accessories, 2 or 3 cases, looks to be in fairly good condition from the pictures. The girl selling it doesn't know how to answer most of the questions I have so certainly I can't get her to tell me what the ROM installed is by looking at the Settings - About phone info.
So here's my question: been doing some research today into the current situation and from what I gather, Sprint, in their infinite greedy and stupidity as usual, has found a way to block the ability to unlock the SIM for use with other carriers like T-Mobile (my carrier of choice). Apparently this started with ZVC and I have no idea which specific version of Android that is since there's a bunch of them around but I'm going to presume it's at least Android 7.0 Nougat.
I'm going to presume that if this phone does not have ZVC on it then it's safe to also presume that I would be able to do the SIM unlock and make use of it with T-Mobile so if anyone out there might be able to answer that I'd be eternally grateful.
As stated, I have no idea what firmware is currently on the device, unfortunately, I sure hope it's not ZVC or anything later, guess I'll find out later today when I meet up with this person.
Dammit, Sprint, what the hell are you people doing?

LG WING (LGU+) - NO USIM DETECTED

Hey guys,
Quick question. I am in Australia and bought a LGU+ (LMF100N) from Korea. The phone cannot detect any SIM and I cannot have access to the TEST FIELD menu, I have tried all compatible ROM, still impossible to activate DATA, add APN or have a SIM detected. Do you think it is software or hardware?
Please note that that it is not a DEMO LG Wing and it is unlocked. I have a 'NO USIM DETCTED' message so it is not even ask for a unlock code etc.
I have tried everything with no success.
Thanks hips for your help, advice and answers guys.
PS: congrats for all the posts explaining how to use software to patch etc. XDA forum is really really good. Still looking for the Discord LG WING. Do not hesitate to share the invoice with me.
Lexip_Pixel said:
Hey guys,
Quick question. I am in Australia and bought a LGU+ (LMF100N) from Korea. The phone cannot detect any SIM and I cannot have access to the TEST FIELD menu, I have tried all compatible ROM, still impossible to activate DATA, add APN or have a SIM detected. Do you think it is software or hardware?
Please note that that it is not a DEMO LG Wing and it is unlocked. I have a 'NO USIM DETCTED' message so it is not even ask for a unlock code etc.
I have tried everything with no success.
Thanks hips for your help, advice and answers guys.
PS: congrats for all the posts explaining how to use software to patch etc. XDA forum is really really good. Still looking for the Discord LG WING. Do not hesitate to share the invoice with me.
Click to expand...
Click to collapse
I have seen quit a few LG Wings on Ebay with the sim slot being bad so it wouldn't surprise me.The good thing is,it pops in and out once you pull the back off.No soldering required!
@surgemanx sorry for the long delay mate but you were totally right. My problem was indeed the sim slot, I think i refused to admit it could be hardware as most of the time it is software. I returned it and bought a new WING (US version this time) and it was all good I spent hours install rom etc for nothing lol at least I know how to do it now. Just waiting for Android 12
Very happy of the phone otherwise. Thanks again for your answer.

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