Database Users

Wifi 802.11n 5Ghz working for anyone?

I found the option in the settings where the band can be forced to 2.4, 5 or Auto. On either Auto or 5 the N4 doesn't "see" my 802.11n router (other clients are connected to it just fine). Only b/n/g seems to work for me. The router is a Linksys E3000 running DD-WRT if that matters.
Anyone else?

Well, the Nexus 4 doesn't support 802.11a (see wikipedia etc.)
But 802.11n at 5 Ghz should work.

infoflo said:
Well, the Nexus 4 doesn't support 802.11a (see wikipedia etc.)
But 802.11n at 5 Ghz should work.
Click to expand...
Click to collapse
Actually, it does.
Wireless RF Module - Atheros WCN3660
Quote:
Manufacturer: Qualcomm
Bluetooth: BT 3.0/4.0 Low Energy
Wi-Fi: 802.11 a/b/g/n (2.4/5 GHz)
FM: Hardware supported

I don't have wireless A, but one thing to try. Is your 5ghz and 2.4ghz broadcasts named the same? For instance on my wireless N setup I have the router broadcast ROUTER5 and ROUTER2.4 so I can specify which band to connect to. This has eliminated a lot of trouble of my wireless devices not choosing 5ghz when I want them to. So my Nexus4 just connects to ROUTER 5 and I know it is 5ghz.
jasonwc said:
Actually, it does.
Wireless RF Module - Atheros WCN3660
Quote:
Manufacturer: Qualcomm
Bluetooth: BT 3.0/4.0 Low Energy
Wi-Fi: 802.11 a/b/g/n (2.4/5 GHz)
FM: Hardware supported
Click to expand...
Click to collapse

The SSIDs are different for "5" and "2.4" for exactly the reason you mentioned. But no matter what I can't see the "5" SSID from the N4, while either wifi clients can see both at the same time. The router support simultaneous 2.4 and 5.

Yes. 5Ghz works.
I use it in my house. I'm on it right now with my N4.
Check the security on your router.
You should have a WPA2/PSK AES encryption or leave your network open.
You'll also want to verify your router is broadcasting.
Since your router was flashed with DD-WRT, verify you are in mixed mode or some sort of N G combo.

Thanks for confirmation. It's strange that the phone doesn't even see the router at all, I tried various mixed modes, channels, SSID broadcast is enabled, etc. Other clients have no problems with the router.

I haven't tried this yet, but from reading other reports it may be the case that the N4 (and the N10) only support the 5Ghz band with 20Mhz channels, not 40Mhz. My router is configured to use 40Mhz only so that might explain why the N4 cannot "see" it.
http://www.dd-wrt.com/wiki/index.php/Wireless-N_Configuration#20MHz_vs_40MHz

running my Nexus 4 on 5GHz N mode on a Linksys EA6500. My channel width is set to auto so maybe that is why it can be seen and used.
General question though, why have you chosen to use 802.11a anyway? What benefits are there? (honestly curious)

Sort of off topic, but who the crud uses 802.11a?
Sent from my Nexus 4 using xda app-developers app

DarkRyoushii said:
General question though, why have you chosen to use 802.11a anyway? What benefits are there? (honestly curious)
Click to expand...
Click to collapse
The subject of my topic is wrong. It should have said 802.11n on the 5Ghz band, not 802.11a. I edited the subject now.
I prefer 5Ghz when possible because I seem to be the only AP on that band whereas 2.4Ghz is crowded.

sirxdroid said:
I found the option in the settings where the band can be forced to 2.4, 5 or Auto. On either Auto or 5 the N4 doesn't "see" my 802.11n router (other clients are connected to it just fine). Only b/n/g seems to work for me. The router is a Linksys E3000 running DD-WRT if that matters.
Anyone else?
Click to expand...
Click to collapse
I have the same router with DDWRT also and my N4 cannot see my n router either. I will look into the band settings tonight.

Just chiming in, Linksys E3000, DDWRT and my 5Ghz network works like a charm

5Ghz works for me just fine.

still having wifi issues, wddrt flashed firmware(iv'e tried all settings) wasted 24hours i think trying to figure it out, solid connection but wifi seems broken, can't download stuff but can browse google playstore
my other wifi devices have NO ISSUES at all with this router
cannot run speedtest, can only run ONE certain type of texting app(strange) others won't connect online
its like my n4 has a 'firewall' or something
seems my best option is to pick BG-MIXED mode! alot mor apps connecting to the internet now but not all! at least im getting progress

sirxdroid said:
I found the option in the settings where the band can be forced to 2.4, 5 or Auto. On either Auto or 5 the N4 doesn't "see" my 802.11n router (other clients are connected to it just fine). Only b/n/g seems to work for me. The router is a Linksys E3000 running DD-WRT if that matters.
Anyone else?
Click to expand...
Click to collapse
Change your channel to 40 or 48. Mine didn't work before but after changing my AP channel to 48, my N4 can see the 5GHz AP now.

junks2010 said:
Change your channel to 40 or 48. Mine didn't work before but after changing my AP channel to 48, my N4 can see the 5GHz AP now.
Click to expand...
Click to collapse
Changing my AP's channel to 48 from 40 seemed to work for me. My Nexus 4 can now see my 5GHz AP.
Thanks!

lamb_1234 said:
Changing my AP's channel to 48 from 40 seemed to work for me. My Nexus 4 can now see my 5GHz AP.
Thanks!
Click to expand...
Click to collapse
Thanks alot ! I had this exact problem with my Tomato-flashed Linksys E3000. I changed the channel of 5ghz from Auto to 48 and voila, Nexus 4 is now cruising happily.
Before, my Nexus 4 did not even detect my wifi N 5ghz AP while all my other devices could. The strange thing is my Nexus could see my neighbors' 5ghz APs but just not mine.

utes said:
Thanks alot ! I had this exact problem with my Tomato-flashed Linksys E3000. I changed the channel of 5ghz from Auto to 48 and voila, Nexus 4 is now cruising happily.
Before, my Nexus 4 did not even detect my wifi N 5ghz AP while all my other devices could. The strange thing is my Nexus could see my neighbors' 5ghz APs but just not mine.
Click to expand...
Click to collapse
What Channel Width do you use? Auto/10/20/40 - at least these are the options in DD-WRT?
I still can't get my N4 to see my DD-WRT router's 5Ghz AP no matter what I try. I have since acquired an HTC One X+ phone and that has no problem seeing it, together with a bunch of other devices in the house, including a Chromebook. Something going on with the wifi chip and/or software in this LG N4.

Try 20mhz and a low channel like 40 or 48. Works perfect for me on dd-wrt
Sent from my Nexus 4 using xda app-developers app

wifi bands

Does the Nexus 4 have all the wifi bands... 802.11abgn or just the 802.11bgn?
I couldnt find an answer to this.
Hopefully someone who hasbhe device and also uses the a-band can chime in...
Thanks
C

It is abgn
http://forum.xda-developers.com/showthread.php?t=1964850

KyraOfFire said:
It is abgn
http://forum.xda-developers.com/showthread.php?t=1964850
Click to expand...
Click to collapse
Thanks mate.
It comes to me as a surprise because Google doesn't list 802.11a support for the Nexus 4 on the Play store specs.
Is 802.11a not officially supported by android? I ask because even in my Galaxy Nexus (and this is just couple a days ago with full wipe and installing 4.2.1 from the stock rom via adb), i initially tried to connect via my 5Ghz network but it just wouldn't connect for the life of me. 2.4Ghz worked like a champ.
EDIT: I should note that the problem with the 5Ghz band is only upon initial starts. If I disable and re-enable wife, 5Ghz works just fine, but I simply don't get why it fails on the first try.
C

802.11n also uses the 5Ghz band, or do you honestly mean 802.11a, that most ancient of wireless standards?

Ajfink said:
802.11n also uses the 5Ghz band, or do you honestly mean 802.11a, that most ancient of wireless standards?
Click to expand...
Click to collapse
yes 802.11n "can" potentially use the 5Ghz "a" band if the 5Ghz "a" band is supported.
802.11n standard was designed to implement speed rates upto 450mbps (depending on the number of channels being bonded)
802.11n doesn't simply imply that it can use the 5ghz and 2.4ghz bands. it has to state that its 802.11abgn for me to be able to do "n"-speeds over 2.4ghz or 5ghz
google play store's specs show 802.11bgn which implies its only 2.4ghz.
if its 802.11abgn, then it works for me because i use the 5ghz exclusively to avoid the noise of all the 2.4ghz channels around me and theres a ton of them

5.0 5Ghz Wifi Issues

Did a full image wipe/install with the official 5.0. I'm no-longer able to connect to my Netgear r6800v2 router with the same channel 48 setting for 5Ghz that previously worked on android 4.4.4.
Any other folks out there with android 5.0 problems using 5Ghz channel?
EDIT: I should add - I'm fully aware the N10 has limited 5Ghz frequencies it works on (e.g. 40, 44, 48) - I've tried 36, 40, 44, and 48... none of these seem to work in android 5.0 with the same router settings. It can see the broadcast and attempts to connect, but IP address is never acquired (DHCP)

I'm having the same issue and my 2.4 network is very slow. Anyone else have this issue or any idea how to fix it.

Yeah I've had issues with 5ghz on every lollipop device I have. Haven't figured out how to fix it yet

I had the same issue and changing to Channel 44 (with Auto bandwidth = 40 mhz) solved it for me, it was on 36 initially

No problems here, did a clean flash of Lollipop and 5GHz is working fine with my RT-AC68U, channel 36, auto bandwidth.

Same problem here. Changed to channel 44 and is at least working

Wiped. Clean flash. No problems. On channel 157. Wish it would tell me if im 300mbit or not. Ac n66u.

Installed from a sideloaded OTA.
Have issues connecting to my Virgin Superhub 2 both on 2.4Ghz and 5Ghz.. Channel 8 and 36 i believe.

xrecartp said:
Wiped. Clean flash. No problems. On channel 157. Wish it would tell me if im 300mbit or not. Ac n66u.
Click to expand...
Click to collapse
Go into Settings -> Wifi then tap the connected wifi network. It will tell you your link speed there. Mine is connected at 300mb/s, while in powersaver mode it drops to 24mb/s.

KiraYahiroz said:
Go into Settings -> Wifi then tap the connected wifi network. It will tell you your link speed there. Mine is connected at 300mb/s, while in powersaver mode it drops to 4mb/s.
Click to expand...
Click to collapse
Mine only connects at 24Mbps and its not in powersave mode

I've similar issue, but both on 5ghz and 2.4ghz.
The connection isn't stable and I get disconnected all the time after upgrading to lollipop. If I'm tethering with my phone right next to the tablet (on 5ghz) it works perfectly. I'm not sure if they've tweaked the disconnect/reconnect threshold base on signal strength.

I'm having problems with 2.4 Ghz wifi too. In Jelly Bean I have a pretty good coverage with my home router but with Lollipop I get lots of disconnections and slow speed. I'm not sure if it's a drivers problem or an operative system change, but I know for sure that it's a pain in the ass.

I'm having the same problem with 2.4 Ghz.

Both 5 and 2.4 are much worse for me as well compared to kk.
Inviato dal mio LG-D802 utilizzando Tapatalk

I've solved my Wi-Fi speed problems changing one setting in my router: just disable WMM ( Wifi MultiMedia).
Try to enable/disable that setting (can be shown also as WME instead of WMM).
Good luck!

wifi is terrible after 5 update, on both 2g and 5g, constantley disconnects and not loading pages :crying:

dean_8486 said:
wifi is terrible after 5 update, on both 2g and 5g, constantley disconnects and not loading pages :crying:
Click to expand...
Click to collapse
My 2.4g is working perfectly, but it cannot see my neighbours 5g network. My Note 2 sees it fine. I checked with Wifi analyzer app.

I can connect to my BT home hub 5 but it only works for a free minutes and then it kind of freezes.
I'm still connected according to my tablet with good signal strength but there is no internet activity making the tablet pretty much a big paper weight for me at the moment.
If some one can help me fix this issue id be very grateful
Sent from my Nexus 4 using XDA Free mobile app

Connecting just fine at 5GHz 300Mbps with 5.0. I have tested 2.4GHz as well and both function just fine.

I do connect easly, but connection quality is poor... There is definitely something wrong with Wi-Fi on lollipop
tapped from NEX

Wi-Fi AC only 72 Mbps

I'm connected to the 5 GHz band on my WiFi AC 2X2 MU-MIMO Router but the link speed is only 72 Mbps instead of the 433 Mbps that I should get on WiFi AC 1X1 Client. The problem is not on the router because my laptop with 2X2 network card can connect at 866.7 Mbps link speed.
When I set my router 5 GHz Mode to 802.11ac only my Mi A1 won't connect to the network anymore unless I set it a again to mixed.
ROM: Stock March update with locked bootloader
Router: TP-LINK Archer C60 V2
5 GHz Mode: 802.11a/n/ac mixed
Channel: Auto - 153(155)
Channel width: Auto - 80 MHz

victorbayas said:
I'm connected to the 5 GHz band on my WiFi AC 2X2 MU-MIMO Router but the link speed is only 72 Mbps instead of the 433 Mbps that I should get on WiFi AC 1X1 Client. The problem is not on the router because my laptop with 2X2 network card can connect at 866.7 Mbps link speed.
When I set my router 5 GHz Mode to 802.11ac only my Mi A1 won't connect to the network anymore unless I set it a again to mixed.
ROM: Stock March update with locked bootloader
Router: TP-LINK Archer C60 V2
5 GHz Mode: 802.11a/n/ac mixed
Channel: Auto - 153(155)
Channel width: Auto - 80 MHz
Click to expand...
Click to collapse
https://forum.xda-developers.com/mi-a1/themes/xposed-5-ghz-wifi-fix-t3774793/post76158726
Check this if it can help u.

gunmanrishi said:
https://forum.xda-developers.com/mi-a1/themes/xposed-5-ghz-wifi-fix-t3774793/post76158726
Check this if it can help u.
Click to expand...
Click to collapse
I'll do a factory reset but now i'm going to select Spanish (United States) instead of Spanish (Ecuador) to see if that works without rooting my device and installing Xposed.

victorbayas said:
I'll do a factory reset but now i'm going to select Spanish (United States) instead of Spanish (Ecuador) to see if that works without rooting my device and installing Xposed.
Click to expand...
Click to collapse
Sadly it didn't worked, i'm still getting 72 Mbps :crying:

victorbayas said:
Sadly it didn't worked, i'm still getting 72 Mbps :crying:
Click to expand...
Click to collapse
I noticed that my mi A1 has problems connetting to 5GHz networks on certain channels (usually >100). Try switching in your router settings your 5GHz WiFi channel to something like 36 or 40 and see if it helps.

I can connect 5GHz wifi with 200 Mbps link speed by install Magisk modules "WiFi Bonding (Qualcomm)"

malise said:
I noticed that my mi A1 has problems connetting to 5GHz networks on certain channels (usually >100). Try switching in your router settings your 5GHz WiFi channel to something like 36 or 40 and see if it helps.
Click to expand...
Click to collapse
I can connect to the 5 GHz network but i can't get expected 433 Mbps link speed with a AC Router instead of that it only gets 72 Mbps (WiFi N).

Maybe try a custom ROMto see if it is a hardware issue or a ROM issue? I have no issues with 433mbps on 5GHz AC.
If you can also try another 5GHz network to ensure that it isn't a compatibility issue with your router, then we can narrow down the possible issues.
Did it ever connect at a higher rate than 72mbps? Or have you only had this phone for a short time? Maybe see if you can find an older stock ROM to fastboot flash to ensure it isn't the ROM that is messed up?

goofball2k said:
Maybe try a custom ROMto see if it is a hardware issue or a ROM issue? I have no issues with 433mbps on 5GHz AC.
If you can also try another 5GHz network to ensure that it isn't a compatibility issue with your router, then we can narrow down the possible issues.
Did it ever connect at a higher rate than 72mbps? Or have you only had this phone for a short time? Maybe see if you can find an older stock ROM to fastboot flash to ensure it isn't the ROM that is messed up?
Click to expand...
Click to collapse
In which channel if your 5 GHz network working?
PD: This is my second Mi A1 because the previous one got stolen from my house so when I bought it the first thing that I did was installing Oreo and then a factory reset. Also I bought the new router the next day so I've never tested it with Nougat.

btw have 72mbit/s on 2,4GHz as well :/ tried on stock and LOS 15.1

lolmensch said:
btw have 72mbit/s on 2,4GHz as well :/ tried on stock and LOS 15.1
Click to expand...
Click to collapse
In 2.4 GHz it's completely normal unless you set your router channel bandwidth to 40 MHz (not recommended if you live in a very populated area with a lot of nearly WiFi networks) and enable channel bonding on your devices and you'll get 150 Mbps.

I unlocked the bootloader and flashed latest fastboot ROM with MiFlash using clean all and lock, I'm still getting 72 mbps but the WiFi signal has improved and also now I have Mi Drop, Mi Community and Mi File Manager preinstalled. I'll try a custom ROM in this days and I'll post the results.

victorbayas said:
In which channel if your 5 GHz network working?
PD: This is my second Mi A1 because the previous one got stolen from my house so when I bought it the first thing that I did was installing Oreo and then a factory reset. Also I bought the new router the next day so I've never tested it with Nougat.
Click to expand...
Click to collapse
It's on auto, currently channel 36. I have no problem with 433Mbps connection on 5GHz, being about 20 feet away in another room with 2 walls in between. I can be upstairs in a bedroom, not directly above the router, and still have over 300Mbps connection.
This is running a Linksys EA6900 router with XWRT Vortex/Merlin custom firmware, and Mi A1 running Pixel Experience with Franco Kernel R2.

goofball2k said:
It's on auto, currently channel 36. I have no problem with 433Mbps connection on 5GHz, being about 20 feet away in another room with 2 walls in between. I can be upstairs in a bedroom, not directly above the router, and still have over 300Mbps connection.
This is running a Linksys EA6900 router with XWRT Vortex/Merlin custom firmware, and Mi A1 running Pixel Experience with Franco Kernel R2.
Click to expand...
Click to collapse
I'll give Pixel Experience a try if Xiaomi doesn't launch Android 8.1 with Project Treble this month.

Samsung Galaxy A20 5ghz Wifi not working.

To be clear off the bad, its not the router. Every other device in the house that connects to the 5ghz band works flawlessly. This is a brand new international phone being use with AT&T in the US, calls and texts function fine. Phone is fully updated and so is the router.
Wifi however is only picks up 2.4ghz bands. Not 5ghz.
Wifi analyzers pick up 2.4ghz but when switching to 5ghz I get a messages stating my phone does not support 5ghz. Anyone else with this issue?

@aq3e No. It doesn't have 5GHz.
2.4GHz has better penetration through walls anyway.
5GHz is really only good if you're in the same room.

physwizz said:
@aq3e No. It doesn't have 5GHz.
2.4GHz has better penetration through walls anyway.
5GHz is really only good if you're in the same room.
Click to expand...
Click to collapse
The phone does 5GHz as mentioned on samsungs website : 802.11 a/b/g/n/ac 2.4+5GHz

Snekxs said:
The phone does 5GHz as mentioned on samsungs website : 802.11 a/b/g/n/ac 2.4+5GHz
Click to expand...
Click to collapse
I have dual band and can only see 2.4
Might be different in other countries.
Australia had only 2.4 as shown here.
Connectivity
ANT+
No
USB Interface
USB Type-C
USB Version
USB 2.0
Location Technology
GPS, Glonass, Beidou
Earjack
3.5mm Stereo
MHL
No
Wi-Fi
802.11 b/g/n 2.4GHz
Wi-Fi Direct
Yes
Bluetooth Version
Bluetooth v5.0 (LE up to 2 Mbps)
NFC
Yes
https://www.samsung.com/au/smartpho...-Q3bFagLE-84I8pWNocaAq5vEALw_wcB&gclsrc=aw.ds

I also dont have 5ghz and dont have the advacned wifi option to change bands... Why this model suck this much? Probably a OS stupid limitation...

rophiroth said:
I also dont have 5ghz and dont have the advacned wifi option to change bands... Why this model suck this much? Probably a OS stupid limitation...
Click to expand...
Click to collapse
5ghz is only good if you're in the same room

The A20 does support dual band, but it's disabled. I tried to enable it by replacing the mx140_wlan.hcf file located at /vendor/etc/wifi/ with the one from the A30 and it worked, but there's a problem.
For some reason the signal range is terrible, to detect a 5 GHz network the phone needs to be next to the router, if it gets some centimeters away the signal drops at the point where the network is not detected anymore.

physwizz said:
5ghz is only good if you're in the same room
Click to expand...
Click to collapse
5ghz wifi is certainly not only good in the same room, check online heatmaps of 2.4 vs 5ghz to compare, it's not a huge difference. Given how much less interference you will get on the 5ghz it often works a lot better than 2.4ghz even at longer ranges. Fix peoples internet for a living and I've seen thousands of peoples speeds double or even triple from changing to 5ghz even when router is on the first floor and they use it on the second.

FrankdonkeybrainReynolds said:
5ghz wifi is certainly not only good in the same room, check online heatmaps of 2.4 vs 5ghz to compare, it's not a huge difference. Given how much less interference you will get on the 5ghz it often works a lot better than 2.4ghz even at longer ranges. Fix peoples internet for a living and I've seen thousands of peoples speeds double or even triple from changing to 5ghz even when router is on the first floor and they use it on the second.
Click to expand...
Click to collapse
Read the article here.
It shows that 5ghz suffers from greater attenuation rates than 2.4
2.4 GHz vs. 5 GHz WiFi
Learn about when to use 2.4 GHz vs. 5 GHz WiFi with CenturyLink. The difference between these frequencies can affect your speed.
www.centurylink.com

physwizz said:
Read the article here.
It shows that 5ghz suffers from greater attenuation rates than 2.4
2.4 GHz vs. 5 GHz WiFi
Learn about when to use 2.4 GHz vs. 5 GHz WiFi with CenturyLink. The difference between these frequencies can affect your speed.
www.centurylink.com
Click to expand...
Click to collapse
(I know this doesn't help much with the OP's question but to dispel hearsay I felt it needed to be said.)
I know you don't know me, but I said I resolve peoples internet problems for a living both on supplier and consumer side and have tested this with thousands of customers but you trust a random article with very little info more and don't even bother to look at heat maps? This article has been made by someone who read a blurb about wifi, but they did get one thing right...
"A lot of electronic devices and appliances use the 2.4 GHz frequency, including microwaves, baby monitors, and garage door openers. If you have many of these in your home, or if you live in apartments or condos surrounded by other people, that 2.4 GHz band is likely to be congested, which can damage speed and signal quality."
That list is very short, it also includes lots of computer peripherals, security cameras, smart home devices, walkie talkies, radios, remote controls, wireless handsets (landlines, not mobiles) basically every wireless device you can think of uses 2.4ghz and even your microwave! all these devices on a long range signal means your neighbours devices also overlap to combine together to make the 2.4ghz band for most consumers a disaster for anything requiring more than slow speeds. This goes without even mentioning that the 2.4 ghz band only has 13 channels (3 none overlapping) to spread every wifi device out on to stop interference, in most residential are this is simply not enough. In many cases this is so bad that even next to the router people can lose 80 - 90% of their speeds or have so much interference that even loading webpages takes a long time due to the amount of data being lost.
Like I said before, even if the 5ghz DOES have shorter range, it is not so short that you have to be in the same room, what would be the point? That is a something people assume because it's a "shorter range signal" but it's not that short! the 5ghz is usually faster due to it's naturally higher data rates and more consistent due to the lack of interference from intermittent signals. Most things that interfere with 5ghz are constant and therefore it's much easier to test and know what speed you can get in other rooms away from the router, unlike the 2.4 which has the same issues with passing through anything only with a load of other issues on top too!. The 5ghz also has the advantage of having over 100 wifi channels to spread networks out on to avoid them interfering with each other, a vast upgrade to the 2.4ghz.
Here is an example of a heatmap comparing 2.4 and 5ghz but just looking at any article that goes beyond a very brief description will show you why the 2.4ghz is often so much worse than the 5ghz.
What's the Difference Between 2.4 and 5 GHz WiFi?
What do these numbers actually mean? Does it realy matter? Is one better than the other? How many questions are we going to ask in this description?
socialwifi.com
2ldr - It depends on your house and nearby networks, test both bands with different devices in different rooms and compare speeds, outside of doing more thorough testing with other apps and equipment this is the easiest and quickest way to see which will work better.

You have 2 choises use BT modem BT modem Plan A: one Device in 5GHz network one device sharing Internet from BT modem feature. +Advance use Open Garden mesh client for better Internet throught BT modem. Construction of my plan:One or two devices in 5GHz WiFi network and 3 devices creating PAN network trought Bluetooth.if Your Bluetooth version is 5.0 you can use Mesh network profile. than using Mesh network structure. Mesh Bluetooth network structure helping one device to other. but you need to know you will use 2.4GHz trought BT modem and Mesh networks.

TBM 13 said:
The A20 does support dual band, but it's disabled. I tried to enable it by replacing the mx140_wlan.hcf file located at /vendor/etc/wifi/ with the one from the A30 and it worked, but there's a problem.
For some reason the signal range is terrible, to detect a 5 GHz network the phone needs to be next to the router, if it gets some centimeters away the signal drops at the point where the network is not detected anymore.
Click to expand...
Click to collapse
I fixed this issue on crDroidAndroid-13.0-20221126-a20-v9.0 by copying both mx140_wlan.hcf and mx140.bin taken from this a30 git. Works great on my a20.

shammoi said:
I fixed this issue on crDroidAndroid-13.0-20221126-a20-v9.0 by copying both mx140_wlan.hcf and mx140.bin taken from this a30 git. Works great on my a20.
Click to expand...
Click to collapse
Interesting. What's your A20 model? I believe I also tried to do that, but I'm going to retry it.

Done it on a SM-A205W.

shammoi said:
Done it on a SM-A205W.
Click to expand...
Click to collapse
No luck. I still have the signal issue

Do it again in the following order maybe ?
1. Download both mx140_wlan.hcf and mx140.bin from the git I gave you above.
2. Turn your wifi off.
3. Reach /vendor/etc/wifi folder using your favorite file browser ( Mine is Mixplorer ).
4. Overwrite both files.
5. Reboot your device.
6. Turn Wifi back on.
7. Do a Wifi speed test ( Wi-Fi Sweetspots app for me ).

shammoi said:
Do it again in the following order maybe ?
1. Download both mx140_wlan.hcf and mx140.bin from the git I gave you above.
2. Turn your wifi off.
3. Reach /vendor/etc/wifi folder using your favorite file browser ( Mine is Mixplorer ).
4. Overwrite both files.
5. Reboot your device.
6. Turn Wifi back on.
7. Do a Wifi speed test ( Wi-Fi Sweetspots app for me ).
Click to expand...
Click to collapse
I use a Magisk Module instead of directly overwriting the files, but this should make no difference. I believe it may be a hardware difference between our devices. On the schematics the 5GHz antenna seems to be marked as optional, maybe that has something to do.
I tried to put my device next to the router, and when I did it the network got detected (with bad signal tough), I could connect and the download speed oscillated between ~50-200 mbps (my network has 300 mbps). Once I moved further from it, the WiFi disconnected as the signal was lost.