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Hi,
I'm in the UK and I work in the gadget repair industry. I have been asked to sort out an LG Optimus Big LU6800 that's having problems with the Wifi and Bluetooth. It's locked to a South Korean phone network called LG U+ (No Sim card)
After a couple of hours of research (which has been difficult given that there's not much English documentation or discussion on this phone) I think I've worked out that LG U+ have the phone locked down so that the WiFi and Bluetooth functionalities don't work unless you purchase a data plan with the network. I've also read that they blacklist the phone if the contract plan is terminated, also rendering Wifi and Bluetooth unusable. Is this even possible, or is this what they might have done?
Can anyone help me on this? Or can anyone fluent in Korean do some Googling on my behalf to find this out. I know it's not a hardware problem as I have already replaced the antenna to no avail. (this is my first experience with CDMA phones, I've never seen one before). I can't even boot the phone into developer mode, it seems like they've locked that down too .. meaning I don't actually know how I'm going to go around sorting this phone out.
Hopefully someone can help me, this seems like a good forum.
Thanks.
Hi, I have been looking everywhere for answers and hopefully some one here can give me one.
I researched rugged phones and decided on the BV7000 Pro because it supports LTE Bands 1/3/7/8/20
My cell provider - Virgin Mobile Canada stated they run on LTE Bands 2/3/4/7
So my phone should work on Bands 3/7
When the phone searches for networks, it is able to display Virgin 4G, Telus 4G, EXT 2G, EXT 4G
When I try to connect to Virgin 4G, it tries then states it failed to register to the network and to try again later
I have confirmed my SIM card and APN settings with Virgin and the SIM card works in my old Motorola Razr but on 3G. The BV7000 doesn't work on the 3G bands Virgin uses so I can't try connecting using 3G.
So I want to know what you think is the reason why my phone can't register to Virgin Mobile Canada's Network?
Other BV7000 Users in Canada, United States and Mexico have reported the same problem.
I have contacted Blackview support and they eventually stated it won't work in Canada but provided no reason why. They posted this 11 days after I had purchased the phone and it was in the middle of being sent to me. However I suspect their support isn't the brightest based on some of the responses I have seen on their forum. The BV6000 works in Canada and the US.
I don't know anything about how the phone communicates to the provider exactly but to me it seems like there is a failure in communication in terms of security which is preventing it from connecting.
Hopefully some one can shed some light on this and maybe find a way around it so I can get this thing to work as a phone.
bv7000 pro, fails on mexico
hello, i have the same problem, live in mexico, it doesnt support 4g, If i have luck it will be 3g data, but i never seen that, only edge, i have i cool phone, but It is useless on internet data.
On the blackview forum theres no help there, Only users complaining about the same in North America
Niagua said:
hello, i have the same problem, live in mexico, it doesn't support 4g, If i have luck it will be 3g data, but i never seen that, only edge, i have i cool phone, but It is useless on internet data.
On the blackview forum theres no help there, Only users complaining about the same in North America
Click to expand...
Click to collapse
Hi, I unfortunately haven't found a solution yet. I have attempted to request a return through the AliExpress website and the seller has completely ignored me. I had to contact AliExpress customer support to have my return request escalated. The seller finally contacted me today asking if I had received the phone. Which is a stupid question because there clearly is communication between use showing I received the phone and have had problems with it.
Your only option is to try to return it or find a phone provider there that it will work on so you can try to sell it to some one on that network or switch to that provider. I found a provider in Canada called 'Rogers' that it works on but I can't switch to them because I would loose my old plan that is cheaper than the modern equivalent.
Either that or learn how to hack the phone to get to the modem that technically can operate on all bands, they just have to be enabled. Blackview uses the MediaTek CPU. I am desperate to try but I am pretty sure I would kill the phone.
sooo...... do you kill the phone??.. hahaha
Is a bad phone, i try with another company in mexico (telcel), but it lost a lot the signal, when you have to make a call, surprise you can't.
asking on the facebook pago of blackview, they say is a hardware problem, so, there is no solution, only keep waiting for bv8000 (if you want to try again)
Niagua said:
sooo...... do you kill the phone??.. hahaha
Is a bad phone, i try with another company in mexico (telcel), but it lost a lot the signal, when you have to make a call, surprise you can't.
asking on the facebook pago of blackview, they say is a hardware problem, so, there is no solution, only keep waiting for bv8000 (if you want to try again)
Click to expand...
Click to collapse
Still waiting for either the aliexpress customer care to figure it out or the seller to reply to me. I haven't done anything with the phone yet. I have been trying to sell it locally but only one person was interested.
When you say they said there is a hardware problem, do you mean the phone is defective or the hardware just isn't configured to work with North American networks but works fine in Asia?
Capskyfox said:
Still waiting for either the aliexpress customer care to figure it out or the seller to reply to me. I haven't done anything with the phone yet. I have been trying to sell it locally but only one person was interested.
When you say they said there is a hardware problem, do you mean the phone is defective or the hardware just isn't configured to work with North American networks but works fine in Asia?
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Click to collapse
i understand that..... is work fine in asia but not in north america.
i'm in contact whit my seller, they try to help me with 3 problems,
- Does not detect my company's signal
- Only works with edge (doesn't support 3g or 4g)
- after make or receive a call, i can't do another one, have to reboot the device.
If they find a solution i will let you know on this forum
Niagua said:
i understand that..... is work fine in asia but not in north america.
i'm in contact whit my seller, they try to help me with 3 problems,
- Does not detect my company's signal
- Only works with edge (doesn't support 3g or 4g)
- after make or receive a call, i can't do another one, have to reboot the device.
If they find a solution i will let you know on this forum
Click to expand...
Click to collapse
Hi, I was just wondering what website you bought your phone through? I bought mine through the AliExpress website, through the Desoon Technology Co., Limited store. The seller has ignored my repeated requests for a return for refund and AliExpress Customer Service won't even talk to me anymore. Nice place to run a shady store when the host website can't even enforce their own rules.
i bought on ebay, honesty i thought i will find a solution for the problem #3 (reboot after a call), but nope, blackview forum is very slow on don't give any solution.
for the problema 1 and 2.... there is no solution, the phone doesn't support 3g whit most of the companys in America (canada, us, mexico or south america), is hardware problem., this problem is fixed on the new bv8000 pro, is has more frequency bands to support global network.
It does not work 3G or 4G only 2G.
I have a blackView bv7000 pro, but it does not detect the networks of 3G or 4G only 2G, here works well only the phone with 2 SIM, the wathapp works well only the internet is very slow, in one word is not good for the internet, it is fast with the applications, but with the internet nothing else is not good.
This in Mexico with any telephone service here.
I plan to keep updating this XDA forum thread with what I find out about this problem, potential solutions, and hopefully what solves it. Hopefully this will be useful to those with the same or similar problem.
Please excuse typos...
The Solution
The reality is, prevention is the best solution here, do a bunch of research to make sure you don't encounter this problem. Read the rest of the post to better understand.
Original
Thank you in advance for reading this and helping me. (I also posted this in r/LGG8X, and am posting it here because some people don't have accounts with both. The more people that see it, the better, if by chance someone has ideas, wants to help, and has time to post the ideas)
It seems like a lot of people are having this issue, so maybe someone might have an idea.
I bought this phone to replace my Xiaomi Mi 9 (which was on the fritz, turning itself off randomly), about 1.5 weeks ago. I did my research and reasonably concluded that this phone has LTE band 12 and VoLTE; also it would be foolish of LG to not to have that. I could not find the VoLTE or Wifi Calling switches anywhere in the settings app, or in the phone app. I then dialed " *#*#4636#*#* " which opened up the "Testing Settings" (as usual). I click on the "Phone Information" tab, scroll down and find both the VoLTE and Wifi Calling switches, which are, to my dismay, greyed out.
I called Ting and they said, (after getting the IMEI), that this doesn't have LTE band 12, therefore no VoLTE. That confused me, because like I said, my research before buying had already concluded that it has band 12. The Ting rep said that's all he could do for me, so we ended the call. I did another 30 mins of research, again concluded it has band 12 with VoLTE. I also called LG themselves, and the rep there confirmed that this phone has band 12 with VoLTE, they also said "we would be more than happy to verify that the phone works with you carrier through phone conferencing". I asked the rep about about the previously mentioned VoLTE and Wifi Calling switches being greyed out, and they said that's because the phone has those 2 capabilities, but the carrier has to enable them.
I really love this phone, especially in comparison to the Mi 9 (even tho the Mi 9 is a good phone). I love the software better (even with the weird quirks that it has), and the value proposition is quite good. I really don't want to have to get a 3rd new phone in one year. If anyone has any ideas/help that would be greatly appreciated.
Thank you
[Edit]: P.S. I think this is partly a problem with LG, and partly with the carriers. I suspect that LG messed up with the IMEI/etc and other important identifiers as to what the device is, what exact version (i.e. LM-G850UM, etc) of a particular model (i.e. LG G8X Thinq Dual Screen, etc). This leads to the cell carrier's infrastructure seeing this phone as incompatible (doesn't see LTE Band 12, when it really is. The cell carriers, (from my own experience with 2 Ting Reps, and from what others have said on other forum threads), can't or won't solve this problem, even tho it may be solvable. From what I have seen on other forums, some got it solved by the cell carrier entering codes on the phone and doing something on their side. If LG and the all the networks would talk to each about this problem and get it solved if possible that would be awesome...
Update - 11/04/2020:
It seems I unintentionally bought a G8X with the Canadian rom LMG850UM20e. I am doubtful, but is the hardware the same or similar enough to flash the USA unlocked rom LMG850QM? Or is there something else I can do to make the Ting network allow VoLTE? As far as I can tell, the Canadian model still supports VoLTE LTE Band 12, but correct me if I'm wrong.
Update - 11/05/2020:
Ting says that my phone has LTE Band 12 and therefore VoLTE, but that will only work on ATT. A bit confusing because (like I said) the particular rom on my phone is Canadian (LMG850UM20e), so why ATT? The explanation for that, it seems is that ATT, (and Sprint), and the unlocked Canadian version have the same sub-model: LMG850UM. The USA unlocked version has a different sub-model (LMG850QM), the rest of the world has yet another sub-model (LMQ850EMW). There are around 15 different versions it seems; see this reddit post on the different models: (can't post the link yet) title: "Hey G8X owner, what is the submodel number and regional code of your unit? And where did you buy it from? I am trying to complete this list, also relating to timing of security updates and Android 10 release." posted in r/LG G8X
It seems like all the versions (LMG850......) have the same hardware, the only difference are the roms, which seem artificially disable certain capabilities of the phone. I am pretty sure my phone would do VoLTE just fine on Ting (or most other carriers). The thing wrong here, I think, is that the IMEI and other specific identifiers of the phone artificially show that the phone does not have the functionality, so the networks don't enable it. It also seems like LG made an agreement or something with ATT as well as Sprint (separately), to release carrier-specific version (as most brands seem to do), and that the phone would fully work on their respective networks and MVNOs, at least the versions in the LMG850UM sub model group, and the USA unlocked sub-model group. LG and T-Mobile seem to have come to no such *official* agreement, unfortunately. I am wondering any of the versions work with T-Mobile and it's MVNOs out of the box, some *modifications* may have to be done in order to get it working on TM towers. There may also be unintentional bugs in some or all roms that are possibly causing, or more likely, adding on to the problem.
Obviously, I am still trying to find my around this problem. I'm considering flashing a USA unlocked rom (LMG850QM sub-model), though not sure if that's possible, or if it'll change what the IMEI and the other specific identifiers tell the cell carrier about compatibility. I also wonder if carriers have the ability to override the artificial restrictions. There is also one report of T-Mobile supposedly fixing the same/similar problem with Sprint for a customer, see u/Veshtarii's comments on this reddit post: (can't post link yet) title: "LG G8X unlocked models having issues with US carriers." Posted in r/LGG8X. Another reddit user used a cheap Tracfone sim card to make his phone work on T-Mobile: (can't post link yet) title: "Tutorial: How to Update eBay Unlocked ATT / AT&T LG G8x" Posted in r/LGG8X. I am unsure if he also has VoLTE working.
Update - 11/06/2020
I'm done with this... It is pretty much impossible. I commented on the "Tutorial: How to Update eBay Unlocked ATT / AT&T LG G8x" post, and the OP responded and said he can't get VoLTE working, even with doing that update. The only thing that could possibly work, is flashing the USA unlocked sub-model onto it. However I probably don't know enough to do it right, but the bigger reason is that it'll probably brick it. I've realized, and should realized when I was doing the research for a new phone, that ATT and TMO's VoLTE/Wifi Calling work differently. They both use propriety coding, which they license to each brand to use in the models they both come to agreement on, and a similar agreement with each MVNO under their towers. LG and TMO seem to have made no such agreement for the G8X, therefore in all practicality, no G8X will work on any of their towers. Also, I called H2O Wireless just to see if my phone works with them, but they said my IMEI is not compatible; so I'm not the Canadian model that I have works in the US at all, that makes me think that not even the versions inside each sub-model aren't even compatible with each other. There is that one situation I mentioned, where the person who was having problems with Sprint before the merger, took it to TMO after the merger and the TMO tech fixed it for him. But I think he must've been having a different problem, because his phone is probably still technically running on Sprint towers. Sprint made the agreement with LG, so VoLTE would work in that instance. Flashing is practically not a solution for most people.
I should've done more research than I did before buying the phone. That is the moral of this story; make sure you do all your "homework" before buying any phone anywhere but the shop of the carrier you are using (or plan to use). That leads me to my number one complaint with phone brands and especially cell carriers as whole: they make it incredibly annoying, often difficult, and confusing to find a compatible phone that isn't on the carrier store. And the problem with that is that everything in any carriers' stores is everything is stupidly overpriced, and then they get you hooked with pricey deals you don't want. If you're reading this, you're most likely like me, you know better than to spend more than you have to on a phone and plan in the carrier store, you know (or at least kinda know) how to get past that. I get that cell carriers want to make money, but I tell you, this is too far. Anyways, the point is, there is no immediate solution, in other words, your only worthwhile solution is prevention, doing a bunch of research. I'm done with this... I'm returning this phone and getting the vanilla G8...
I have the LMG850QM. It has no VOLTE icons while in call even if on band 12. It uses HD+ and that will be shown in dialer during call. Internet does work while in call so believe that it is working. The switches are on like yours but greyed out. Wi-fi calling does work. By turning on airplane mode and then turning back on wifi the dialer will show that calls are being made over Wifi. The OnePlus 6T has VoWifi icons in status bar and this phone doesn't. I will say that this phone gets service in buildings where neither of my 6t's would have service.
Hi dear community,
I recently purchased a Samsung Galaxy Note 20 5G and wanted to check out, where I can see the different modes and if 5G networks are available.
Well, in fact that I'm a geek with frequencies and stuff, I was happily surprised, that actual phones show the operators and the mode. In Germany I've got 3 Operators (T-Mobile, Vodafone and o2) and we can see them each 3 times (e.g. o2 2G / o2 3G / o2 4G and so on) on actual phones. But with the new Galaxy Note 20 5G I can't I can only see the 3 without the modes.
Is it possible (perhaps with root, what I already wanted to perform) to change some settings in the build.prop or somewhere else, to activate that? Or do 5G phones don't have this feature anymore? The Device had Android 10 and I upgraded to 11. Still nothing. It was delivered with spanish Vodafone software (I still don't get it why) and even the update with the neutral software from Germany, didn't changed anything. Even the spanish Vodafone software and the welcome screen in spanish after resetting the phone didn't disappeared. I don't want to send this phone back, Can anyone help me please?
Please excuse my grammatical issues.
with googel controls now in effect slot of stuff that was once accomplished previously are now not. so I would likely is reason for no response, even though I am rooted on tmoble with 20 ultra (thanks dev team!) . I will be going back to using the 10+ because of this kinda stuff until scoped storage is hacked by a talented person.
as for your question, I am not sure exactly what your thoughts are, although I can only say that for tmoble pretty much always been it's a since 4g came out a scam to show only 4g,lte/hsp+ or whatever it is when the service is actually ¹g or 2g at best, here is a screenshot of the scam taken by myself showing 5G (LOL) when it in REALITY is so weak, my old KitKat s3 was faster. this kinda stuff happens all day long. t-mobiles ultra fast 5g network is actually a lie and is just enough speed it make browsing data work and designed to get to logged in to your wifi asap. because even with 10mbs download you actually have none when your upload is. 0.27 and according to their 'network specialists " I called that's within minimum the 5g range
got the phone yesterday. I really like it. I know it has support for ATT 5G based on some information online (1 out of three bands).
I have tried all the tricks in the book, changed the APN every which way and then contacted ATT to get 5G. They have tried all kinds of things but apparently it's not working.
Anybody else here from the US with 5G success? Curious to hear your story, better even if it's on ATT.
cheers
derausgewanderte said:
got the phone yesterday. I really like it. I know it has support for ATT 5G based on some information online (1 out of three bands).
I have tried all the tricks in the book, changed the APN every which way and then contacted ATT to get 5G. They have tried all kinds of things but apparently it's not working.
Anybody else here from the US with 5G success? Curious to hear your story, better even if it's on ATT.
cheers
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Click to collapse
the answer is no. Maybe there are areas for which this phone might work, definitely not here. ATT support tried all their tricks with the IMEI but they couldn't get past their stupid regulated 5G certification I assume. I am switching - Any suggestions? I know that OnePlus Pro works on T Mobile.
cheers
I had similar problem. I htink that AT&T has done a huge bait and switch, and taken any phones not sold by them, and classified them as 3g phones.
My redmi note prog (1.5 yrs old) just went into this 3g mode, and AT&T support claims they cant do anything for this...
very frustrating.
any lawyers around for a class action suit!??????
I couldnt even get my problem escalated... they said forget about
markbnj said:
I had similar problem. I htink that AT&T has done a huge bait and switch, and taken any phones not sold by them, and classified them as 3g phones.
My redmi note prog (1.5 yrs old) just went into this 3g mode, and AT&T support claims they cant do anything for this...
very frustrating.
any lawyers around for a class action suit!??????
I couldnt even get my problem escalated... they said forget about
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Click to collapse
Wow, I'd definitely report this to the Consumer Court. I just went through an ordeal with Samsung and they were responsive. It's a decent amount of work to go through this. If they truly move these phones to 3G that's a big foul. I would definitely switch. I returned my Xiaomi and switched to a Pixel 5a which works under ATT.
good luck
here is the link
Complaints about consumer products and services | USAGov
Learn how to file a complaint about products or services including phone and cable, your car, and online purchases. Complain about phone and text scams.
www.usa.gov
it will likely go through your local state office as it did with my complaint. They took the information I provided and established a resolution.
derausgewanderte said:
the answer is no. Maybe there are areas for which this phone might work, definitely not here. ATT support tried all their tricks with the IMEI but they couldn't get past their stupid regulated 5G certification I assume. I am switching - Any suggestions? I know that OnePlus Pro works on T Mobile.
cheers
Click to expand...
Click to collapse
Setting aside for the moment the ATT tricks (left them in Feb 2020 glad I did)....it depends on what bands are actually being broadcast by the carrier in your area. LTE-wise I remember ATT in my area would only broadcast on bands 2 and 17. 5 was almost non-existent...4 was not at all available. Tmobile on the other hand is big on band 4 in my area, 66 and 41 (due to Sprint) and also on 2. I had a mi max 3 some time back and since it has 4 but no 2 and 17 it did not get LTE on ATT but would have worked fairly well w T-mobile in my area (then I was with ATT)
check
Cellular Tower and Signal Map
CellMapper is a crowd-sourced cellular tower and coverage mapping service.
www.cellmapper.net