Messed up wifi - LG V30 Questions & Answers

Hello, this is my first posting thread, but i need some serious help for my Asian LG H930DS (with Europe H930 Android 8.0 OS), i wanted to try solve 2 issues, from which 1st one wasn't that much important to me: hotspot not having option for choosing 5GHz, and always having slower wifi than it should be(using tp link archer ax20). For 1st issue, i was following instruction i found on this site:
https://www.reddit.com/r/lgv30/comments/kpsubf
,so basically i dialed *#546368#*930# for hidden menu, gone to Field Test -> WiFi Test -> OTA Setting, clicked enable and core both(i don't remember if it was already enabled or not, but i remember for core both being already ticked, wifi turned off when i clicked enable ota thing, hotspot wasn't working till restarted phone), not only it didn't help at all to get that 5GHz option in hotspot settings(which was always max giving wifi 4 n standard, checked in properties on laptop), but it somehow messed up to my wifi works worse and better at same time(will explain), neither restarting my phone helped to get everything like was before. Basically what happened is that on wifi, which was earlier always showing 866Mbps in settings, is now double reduced, now showing 433Mbps. Before i messed this up, i was always having wifi speed of around 150-160Mbps on speedtest with those 866 showed in settings, which is 2nd issue i mentioned that wanted to try fix as saw in some tp link forums people complaining about that lower speed on v30(yes i'm aware that my phone doesn't support wifi 6 ax standard which my router have, but it's still too small score for ac standard when i have 1Gbps internet). After i messed up, speedtest was surprisingly showing 250-260Mbps, but was also having big downfalls during testings and in end result was even more times showing just around 80Mbps, while earlier when was 150 weren't big jumps and falls during testings like now. On tp link site for settings router, for my phone was always showed Tx/Rx rate 866/6 , while now after messed up showing 325/433. Also noticed that now when restarting phone, in settings not showing up 5ghz wifis for 2 min or so, not big deal, but little detail i noticed, slower loading them now only after booting up phone. Sorry for longer text, i really hope someone can help me bring back how it was, to showing again those full 866 speed, no matter if speedtest shows "just" 150, but to be stable.

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Is there any possible fix for this before i try with wiping out whole phone and restoring everything from backup? Will that help, or whole process will be useless?

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Sorry, I don't have any better advice for you... sounds like you made some changes and things are weird now.
One thing to remember about wifi is that it's not always consistent anyway. Speeds reported by devices can change for MANY reasons. For example, distance from the AP, angle to the AP, interference from other APs, and many more. Using these numbers to say there is a problem is just going to make you crazy unless you are in a controlled environment.

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schwinn8 said:
Sorry, I don't have any better advice for you... sounds like you made some changes and things are weird now.
One thing to remember about wifi is that it's not always consistent anyway. Speeds reported by devices can change for MANY reasons. For example, distance from the AP, angle to the AP, interference from other APs, and many more. Using these numbers to say there is a problem is just going to make you crazy unless you are in a controlled environment.
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Yes i'm aware for wifi not being consistent and all those factors affecting on wifi, in fact today was suprisingly stable 150-160 speed, but i can still see there's definitely some problem when is showed 433Mbps in settings instead of 866 like was earlier at same distance from router, and on tp site settings too for Tx/Rx rate being weird like said in text and showed on screenshots. In fact only my device from all other devices home have weird proportion to Rx(recieve) be bigger than Tx(transmit) and to showing Rx to be those "max" 433 which is wrong
I'm thinking that maybe having Europe OS in Asian device have to do something with that wifi modem problem, maybe i'm wrong, so not advicing anyone to toggling OTA settings. I'll still wait before i try that complete wiping out phone(not even factory reset), or will let it be, still undecidable for that, but thx for help, any help really appreciated!

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Again, those readings are not very important and will vary often. Those are theoretical values based on the connection type. In the end, the actual speed you get is really all that matters. For example, my laptop is showing up in my router at speeds like 706, 702, and then suddenly 585. Sometimes it will show 866/6 as well... so a very asymmetric reading is possible. And I'm sitting about 10-feet with clear LOS to my router.
It's not meaningful to worry about those numbers. Unless you're having an actual speed problem, it's not worth worrying about those. There are way too many things that can affect those values (dynamic frequency changes in the router or the device, interference, power management things, etc... there's a TON going on behind the scenes. Just because your device or router says it's on that number for a moment doesn't mean that it won't ramp up when there is a need to do so (or ramp down when there isn't).
EDIT, there's a nice long explanation about the tech here, if you're interested: https://www.duckware.com/tech/wifi-in-the-us.html

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S
schwinn8 said:
Again, those readings are not very important and will vary often. Those are theoretical values based on the connection type. In the end, the actual speed you get is really all that matters. For example, my laptop is showing up in my router at speeds like 706, 702, and then suddenly 585. Sometimes it will show 866/6 as well... so a very asymmetric reading is possible. And I'm sitting about 10-feet with clear LOS to my router.
It's not meaningful to worry about those numbers. Unless you're having an actual speed problem, it's not worth worrying about those. There are way too many things that can affect those values (dynamic frequency changes in the router or the device, interference, power management things, etc... there's a TON going on behind the scenes. Just because your device or router says it's on that number for a moment doesn't mean that it won't ramp up when there is a need to do so (or ramp down when there isn't).
EDIT, there's a nice long explanation about the tech here, if you're interested: https://www.duckware.com/tech/wifi-in-the-us.html
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Didn't read all from that site, but i saw for MIMO thing, and my phone(snap 835 specs says it) support that 2x2 MIMO with speed up to 866, but looks like you were right, not related to those showed numbers, i was getting good speeds of wifi. I still just now refurbished whole phone as i saw that battery is draining drastically faster after i messed up that wifi showing numbers, now when i put actual h930ds firmware in it(early oreo), and connected to wifi, i checked and saw those 866Mbps, so that thing is fixed, but not just that, i also saw in tethering hotspot that i now have option to choose 5GHz which wasn't there, from where i started all this mess at all. Now planned to put Europe H930 OS latest oreo back again to see if maybe that different OS have to do something with that not showing up 5GHz hotspot option, and on top of everything: to hope that battery was draining faster because of that wifi problem and not because of battery itself, as i have phone now for more than 3 years, which works like 1st day. Will tell results

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Excellent, glad you got it figured out and back to working normally! Sorry I couldn't be of more help for actual steps, but you got it done, so great job!

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schwinn8 said:
Excellent, glad you got it figured out and back to working normally! Sorry I couldn't be of more help for actual steps, but you got it done, so great job!
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You did help actually, as that site seems one of those rare ones which goes deep in explaining all about those connection stuffs for people like me who don't understand that much about it in details, and with today's standards with phones connections with reality of scores using WiFiAnalyzer and not some marketing bs, even if i didn't read all, i will as saw how well are explained and done tests, and also helped to realise that numbers showings don't seems to be reliable much(when it comes to those numbers from settings unlike on speedtest app). Also i just now refurbished phone again on that latest Europe Oreo OS, and seems like there's no 5GHz option available in hotspot, so to all people wondering about not having 5GHz tethering hotspot on their LG V30, it's because Europe restricted it (H930 Oreo OS, i don't know if that's case with Pie), it gives max wifi 4 n standard(again checked on laptop in properties for connected wifi hotspot from phone), it's same thing for recording fm radio, as on Europe OS there's not available that red button for recording it, while on Asian one there is on bottom right side. I'm thinking if i should use original H930DS Asian OS even if i'm in Europe, but i didn't see any benefits or downfalls when it comes to carriers here(didn't much travel to check for other countries in Europe, talking for my place), as it works for both OS everything, and can still have VoLTE i think? Will everything works fine in any Europe country carriers and stuffs? Or is there maybe bypassing this issue to get 5GHz hotspot on Europe OS by changing wifi settings launcher like appearing recording button on fm radio app is solved like that?

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Glad that link helped. Yes, Wifi is rather complicated and the numbers we see on boxes and devices is rarely realistic or even attainable.
Beyond that, Wifi also has other issues... it's a nice system when it works, but it has a lot of issues in crowded areas. Here's an older article which talks about why Wifi kinda sucks, in general: https://arstechnica.com/information...hat-a-deep-dive-into-why-wi-fi-kind-of-sucks/
The key message there is that Wifi is shared, so if the router or device sees another device on the same channel, then it may be forced to wait, thereby reducing the bandwidth you'll see. A lot of people don't realize that. Heck, in the older days, wifi would only run as fast as the slowest device... which was even worse!
Again, glad to hear you're working well. Interesting that the 5GHz is not available on the European OS. I don't know enough about that situation, so I won't be able to help there. Generally speaking, I would recommend seeing if you an use the US998 firmware, which is the USA "Global phone" ROM... this works well in the US on any carrier, but may also work well on foreign carriers. I expect hotspot 5GHz would work as well.
I don't know about VOLTE in foreign markets. I know that in some cases that doesn't work in the USA (AT&T is one carrier who is awful about this). In other carriers, you sometimes just need to use their ROM - that's what I did for my Verizon-based carrier (I used VS996 instead of US998). For your case, you may need to ask others or read here to see Europe-specific info. I'd love to see what you find, just for my info... I'm always curious!

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schwinn8 said:
Glad that link helped. Yes, Wifi is rather complicated and the numbers we see on boxes and devices is rarely realistic or even attainable.
Beyond that, Wifi also has other issues... it's a nice system when it works, but it has a lot of issues in crowded areas. Here's an older article which talks about why Wifi kinda sucks, in general: https://arstechnica.com/information...hat-a-deep-dive-into-why-wi-fi-kind-of-sucks/
The key message there is that Wifi is shared, so if the router or device sees another device on the same channel, then it may be forced to wait, thereby reducing the bandwidth you'll see. A lot of people don't realize that. Heck, in the older days, wifi would only run as fast as the slowest device... which was even worse!
Again, glad to hear you're working well. Interesting that the 5GHz is not available on the European OS. I don't know enough about that situation, so I won't be able to help there. Generally speaking, I would recommend seeing if you an use the US998 firmware, which is the USA "Global phone" ROM... this works well in the US on any carrier, but may also work well on foreign carriers. I expect hotspot 5GHz would work as well.
I don't know about VOLTE in foreign markets. I know that in some cases that doesn't work in the USA (AT&T is one carrier who is awful about this). In other carriers, you sometimes just need to use their ROM - that's what I did for my Verizon-based carrier (I used VS996 instead of US998). For your case, you may need to ask others or read here to see Europe-specific info. I'd love to see what you find, just for my info... I'm always curious!
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Click to collapse
I'm literally blown away what i discovered from all testings i done, i hope people will read this, without any offense to anyone, everyone who think/said in other threads and forums everywhere that is basically same if you put European H930 OS in Asian H930DS device like having stock H930DS OS are WRONG. Yes, it's true for both OS supporting same modems for carrier networks and stuffs, but it's obviously for reason made separate OS for different devices, i never imagined that would getting proper wifi speed of 450Mbps and 460 every time i tested(in settings for wifi of course showing theoretical 866 speed), after i put OS that belongs to my device originally, never going back on EU OS. When it comes to 5GHz hotspot, button is there, but when you select it instead of 2.4GHz, button for turning on and off hotspot doesn't work, it turns off same sec you toggle on, only way to make it works is by enabling OTA on same way i mentioned in first message(dialing *#546368#*930# going to Field Test -> WiFi Test -> OTA Setting etc), but when you enable it, then again happenes same thing from before, to wifi in settings showing 433 instead of 866 , and on speed test not anymore 450, but 250Mbps, which is still more than previously using EU OS. After enabling OTA, hotspot for 5GHz worked(details coming next), but when you restart phone, even if OTA stays enabled, hotspot button again doesn't want to toggle on with selected 5GHz, till you again dial number to just click "enable ota" , even if it's already enabled, which is weird, so every time have to click enable OTA after restarting phone in order to make 5GHz hotspot works. When i clicked to disable OTA, in settings for wifi wasn't showing anymore speed of 433, but was showing 520, 650 unlike on EU OS where even after disabling OTA was still staying those 433 as "max", but(always some but) even if it was showing those "theoretical" 520 and 650, on speed test was sometimes 250, sometimes 320 speed, not anymore those 450, so will again refurbish phone to that same OS, and don't recommending anyone to using those OTA settings, it's not worth it for 5GHz hotspot, reason i staying on that OS is because of compatibility of modem for wifi obviously, my carrier have full signal too like with EU OS. When it comes to VoLTE, i'll be able to check that when change carrier package soon.
So about 5GHz hotspot, it's not worth it, here's what i found out: when hotspot is sharing mobile provider data, then, and only then, is true 5GHz hotspot, but it gives speed around 150Mbps(all tested on laptop), i don't know if that's good or bad, as i honestly don't know what is speed of my mobile data provider. If i connect phone to 5GHz wifi to share that wifi through hotspot to laptop, even with enabled 5GHz for hotspot, then of course it's not true 5GHz hotspot as guessing that antenna is being used for wifi, so because of that, it's showed on laptop in properties that is 2.4GHz band with wifi 4 n standard, interestingly enough, in that situation lg put to hotspot gives just 1 channel, but strong one, and because of that, sharing 5GHz wifi on false 5GHz hotspot gave result of 100Mbps speed. For 2.4GHz hotspot, it's around 60Mbps no matter if sharing mobile data or wifi(no matter if wifi from 5GHz or from 2.4GHz).
Yes i'm aware all these are just numbers, i tested more times and got mostly all these same results, they still showed me big differences to see that there were definetly some wrong stuffs going on from phone and OS, so can't say that was maybe at that moment wifi itself interrupted or anything by other people here inside
Final verdict for people who can't reading all this: don't mixing OS with devices that not belongs to, in order to have way better modem wifi and carrier performance(still have to check for carrier one, but for now looks excellent), H930 and H930DS OS are NOT same when it comes to that, don't ever touch OTA settings, don't try to enable 5GHz hotspot on H930DS with OTA, not worth it at all, not much speed getting from it, H930 doesn't have 5GHz at all and don't trying to get it. Hope all this helps.

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Here i am again with update, after restoring everything 3 days ago, i'm very happy about my whole phone, battery is excellent, wifi always being much more speed than i ever had earlier, carrier's 4g mobile data sign was appearing right away instead of waiting 5 sec or so. I'm writing this update to let people know that looks like you need to choose between performance of modem from phone(wifi and carrier network), and having VoLTE, as yesterday i changed carrier package which have VoLTE, and i didn't get it, neither can enable it using this very helpful tutorial, as i'm missing lot of files that Europe OS have: https://forum.xda-developers.com/t/module-v17-x-volte-vowifi-enabler-2018-09-20.3649613/ , i'll maybe try to include those missing system files in my Asian OS even if they belong to Europe OS so to try enable VoLTE that way, if that doesn't work, then i won't have it, as for me is more important wifi speed. Main problem here is to get IMS service be registered with Europe carrier on Asian OS, even if i see that there are indeed ims files available on Asian OS, so that maybe tells something, maybe someone find some workaround.
Edit: there's no way to enable or make work lg ims service on that specific AME OS for some reason, i just now (again) put Europe OS as want to see if i can have VoLTE at all, so don't mind me switching OS , but yes, i tested wifi, it's indeed reduced speed with that OS than original one.