T-Mobile OP8 problems on Global firmware - OnePlus 8 Questions & Answers

I can't get Network Signal Guru to work when rooted and standalone 5G does not seem to be working after changing my T-Mobile OP8 to global firmware.

I imagine the T-Mobile stand alone 5g is strictly on T-Mobile firmware.

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LM-V500N Korean KT version in UK on Vodafone 5G

Hi, I'm using the LM-V500N Korean KT version in the UK on the VODAFONE network. Everything else appears to be working ok except for 5G.
It doesn't connect to the 5G service, only 3G and LTE showing.
Does anyone have any help or suggestions on what could be wrong?
My SIM and 5G coverage is fine as I can use my SIM in a Samsung Galaxy S10 5G and it works fine on 5G.
Currently only EE sells the V50 in the UK, so I was wondering if the V50 is only compatible with the EE 5G service in the UK?
Ok since nobody is able to help answer, my conclusion is that my V50 is 5G locked specifically to KT carrier in Korea.
Only 4G LTE is working fine in UK.
So I guess 5G won't work until I can reflash the phone to European firmware?
Could this unlock the 5G ?
Thanks
where did you get the phone and do you get volte or wificalling..also how loud the phone gets trough wired jack.thanks
ssd_ssd said:
Ok since nobody is able to help answer, my conclusion is that my V50 is 5G locked specifically to KT carrier in Korea.
Only 4G LTE is working fine in UK.
So I guess 5G won't work until I can reflash the phone to European firmware?
Could this unlock the 5G ?
Thanks
Click to expand...
Click to collapse
Yes, crossflashing is the key, but we don't have a working lgup right now. Let's hope we will.
just sound tested a lg v50 in uk today and is better than my htc 10 volume wise...i think i will go for korean version from wonda as its not worth paying EE 1800 over 2 years.SHOULD I PUSH THE BUY BUTTON OR NOT?
I'll recommend Korean version as it's camera has features like super steady mode which european I don't think it has. Also updates. Yes lg updates are very frequently on Korean. Sometimes twice a month.
In the meantime maybe we get working the 5G. Or maybe not.... For me 5g is not that important. The audio quality is. And the camera, it wasn't in the past, but now that I'm spoiled, it is.
dont really care either about 5g.....not worth price vs coverage...but audio is a MUST.Curious thing is that a month ago i listened to a v50 in an EE shop ,but today a different shop and the audio loudness was twice as the previous one.
ssd_ssd said:
Hi, I'm using the LM-V500N Korean KT version in the UK on the VODAFONE network. Everything else appears to be working ok except for 5G.
It doesn't connect to the 5G service, only 3G and LTE showing.
Does anyone have any help or suggestions on what could be wrong?
My SIM and 5G coverage is fine as I can use my SIM in a Samsung Galaxy S10 5G and it works fine on 5G.
Currently only EE sells the V50 in the UK, so I was wondering if the V50 is only compatible with the EE 5G service in the UK?
Click to expand...
Click to collapse
By the way the bank aplications work on korean version.Especially barclays aplication or any banks app?
Yes all my banking Apps work in the UK on my V50 Korean KT version. I've not had any issues.
I use Natwest, Virgin Money, Nationwide.
The only app that did not work properly was Sky Go, but this is also now fixed with the latest update I received 2 weeks ago. V500N11r
ssd_ssd said:
Yes all my banking Apps work in the UK on my V50 Korean KT version. I've not had any issues.
I use Natwest, Virgin Money, Nationwide.
The only app that did not work properly was Sky Go, but this is also now fixed with the latest update I received 2 weeks ago. V500N11r
Click to expand...
Click to collapse
Where did you bought your phone from?
I bought my V50 on ebay from Korean seller Funphone-International. The price was very good and converted to less than £370 Inc shipping.
I really want tbe 5G to work, so hoping for cross-flash soon as possible.
ssd_ssd said:
I bought my V50 on ebay from Korean seller Funphone-International. The price was very good and converted to less than £370 Inc shipping.
I really want tbe 5G to work, so hoping for cross-flash soon as possible.
Click to expand...
Click to collapse
Hello, I've emailed KT Mobile Service because I was curious if the V500N KT version, which I own too, really locks 5G in a way in their phones and here is their answer:
My question: How can I use the 5G network in my country, Portugal, with my network (NOS). Is it possible, do you have to unlock the 5G network?
-Answer: Originally LG V50 is unlocked also KT doesn't have Carrier lock.
If your provider has 5G service you can use 5G but if they don't, you can not use it.
To check your service, you need to contact LG or your mobile provider.
I don't know why you can't use 5G in your network, but it's not because of KT network.
most of the countries require to have the 5g phones registered to their network and also you need a 5g plan.
Thanks for helping.
I'm on Vodafone Network with 5G service enabled, but the V50 still doesn't work on 5G service. A really mystery.
I've put my SIM card into a different Samsung 5G phone and it works with 5G service showing, so my SIM is ok.
Hi, I have done some more investigations and I used the hidden service menu 5457#*500# to check which radio bands my v500n was using.
Under the Multi Band Selection menu I can see all the LTE bands up to B41 listed and selected, however there is no B78 band in the list.
Does that mean my v500n does not support B78 band which I think is the Vodafone 5G band in the UK?
Can anyone else check their service menu and confirm if B78 band is present?
Thanks
korean is 5g locked ....was confirmed on telegram group
Ok thanks
Is that the reason why LTE band B78 is not appearing in the menu list?
Previous answer from Danix004 is saying 5G is not locked and confirmed by email from KT.
-Answer: Originally LG V50 is unlocked also KT doesn't have Carrier lock
If 5G is truely locked then did anyone on Telegram know how to unlock 5G on the Korean KT version?
Thanks
cant be done until root is possible
Ok I received the official Android 10 update yesterday and my phone is now at version V500N20b
Working really smooth with all the new features.
But still no 5G.
septicoo1977 said:
cant be done until root is possible
Click to expand...
Click to collapse
can such problems be fixed by software? I thought you will need hardware for that; not sure how this work.
I remember there are certain china phones dont work with vodafone B20 4g band.

Global OP8 & 5G Standalone

So I actually have a Tmobile OP8 that I converted to global running the latest global Android 11...I'm curious if it will ever support 5g standalone for use with tmobile. I'm not in any hurry since it looks like people on the tmobile firmware have had issues but wonder if it will be added to the global software

AT&T 5G & KB2000

Good morning all,
I purchased the KB2000 for the aesthetic look of the phone. Being a big Cyberpunk 2077 fan (and all things 'futuristic') I decided to get the phone knowing that things such as 5G was going to be a big maybe.
Well to my suprise, 5G is not functional. I get mixed answers that the phone OOB supports all bands and that OnePlus simply disabled them, others (like my understanding) say it's all hardware and cannot be 'added' by software fixes. I tried some of the fixes posted, but not knowing much about OnePlus I'm thinking its a fault on my part.
I went from using HOS ('5G'), OOS ('5G'), Pure Pixel (LTE+), to Paranoid Android (LTE+). While on HOS and OOS I would get a 5G icon, however, when I would go to check the network status (*#*#4636#*#*) I see NR: NOT_Restricted Connected: LTE, where as when I change to Paranoid Android that Not Restricted changed to Restricted..
I am very new to OnePlus and would like to know, can bands be 'enabled' on this phone? Currently using this phone on the AT&T network with 5G access (AT&T Unlimited Elite plan)
Thanks!
Frequency bands are hardware features just like wifi or Bluetooth. The Chinese OnePlus 8t (KB2000) does not include US 5g frequency bands. KB2005 and KB2007 include the bands for TMobile 5g. None of the 8t versions include the bands for AT&T 5g.

Question ASUS_1005DC best carrier compatibility

Between T-mobile and AT&T, which of the two is more suitable for the US ROG Phone 5s?
bhagiratha said:
Between T-mobile and AT&T, which of the two is more suitable for the US ROG Phone 5s?
Click to expand...
Click to collapse
Is the phone a USA version?
If its indeed the USA version, You will have similar service on both ATT and TMobile but you will be missing band 14 on ATT which might effect your service. Also, you are unlikely to have much 5G coverage if that matters to you as this phone only has 3 of 5 ATT 5G bands and 2 of 4 TMobile 5G bands. The missing 5G bands are of the mmWave veriety so the only 5G you can get is 5G Nationwide which might actually be slower than 4G/LTE depending on the area.

OnePlus 8 TMO to global does the carrier policy change to get 5g from other carriers?

So I got the OnePlus 8 on T-Mobile and I'm thinking about switching it to the global version ROM. I'm not unlock yet or anything like that but I haven't got to that point.
So what I'm asking is I'm currently on US Mobile with a Verizon 5G Sim now I can force it to go and add the 5G radio to the radio's list and I will get the 5G banner in the right hand corner but really it's LTE advance.
I found a web page and file on the internet that talked about editing the carrier policy to include all the different carrier signal aggregations and such and to make the phone see all the possible ways to connect. Since this is a T-Mobile version it doesn't connect to Verizon's 5G towers but all the OnePlus 8s are the exact same and have the same modems and such so when you change that carrier policy you basically make it see Verizon's non-standal on 5G towers and it'll connect to them because it's on the same bands in my area. That's my question
Do I need to do the carrier policy edit to get actual 5G non standalone service on this phone or can I just simply switch this phone over to the OnePlus 8 global version of the ROM and will it automatically pick up Verizon 5G towers like it would with the unlocked version?
Did u found anything about carrier change etc?

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