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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
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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?
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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
I recently upgraded to a new 802.11ac router.
All my other ac equipped devices work well in the full dual-band mode. But not the Note4. It doesn't want to use the two bands together, with the full added bandwidth.
The Note4 is supposed to be ac compatible, but mine will only use one band or the other. In normal use it only locks onto the 2.4GHz channel.
If I switch off the router's 2.4GHz channel, the Note4 locks onto the 5GHz channel straight away, no problem. And of course it has more bandwidth.
But as soon as I turn the 2.4GHz signal back on again, the Note4 goes back to the 2.4GHz channel only.
This happens regardless of the phone being close to the router with big signals on both bands, or further away with weaker signals.
I've tried using the 'Smart Network Switch on and off, but that seems to make no difference.
Any ideas?
Edited to say: The channels I'm using are both clear of interference, checked with inSSIDer.
Thats strange, i know its 802.11 AC. Thats a fact. But i never checked to see if its dual band compatible. gotta look into this, thx for the heads up...
I was wondering, is there a way to have the phone prefer one SSID over another?
The reason I ask is my home network has two bands, 5ghz for Wireless AC and 2.4ghz that goes up to Wireless-N but has much greater range. As such, I'd like both to be saved but the phone to fall over to the 5ghz when it's in range, then back to the 2.4ghz when it's not (like when I'm at the outskirts of my property). Any way to achieve this? 3rd party app even, perhaps?
I'm in to see if a solution for this is found. I have the exact same type of set-up and would like to control which band I connect to. I'll try working with tasker to see if I can figure anything out.
Look in the play store. There are some apps that help with this. Search for "WiFi Roaming" and try a few different apps.
You might be able to do this with Tasker, it has a "WiFi Connected" and "WiFi Near" profile...
I have both of my networks saved as well and my phone always connects to the 2.4 GHz first, because it is always the first one the phone sees. Truth be told, I see no reason why you would even need/want to use the 5 GHz band on your phone. Odds are you are not going to tap out the 2.4 GHz bandwidth. Maybe when doing large local network file transfers, but even then if you aren't close to the router, it probably won't make a difference either way. Interference could certainly be a factor depending on network congestion and/or other devices such as a microwave, but I have had no noticeable issues at my rural home. When I lived at an apartment complex with over 50 networks within range, the 2.4 GHz band was TERRIBLE to use - only used the 5 GHz there.
So I just bought a TWE last week for my Nokia 6 (TA-1021), and I have noticed that when I connect that device to my phone it sometimes has a hard time connecting to our Wi-Fi network, or if it does connect it sometimes display 'No internet access'. Strangely, the problem goes away the moment I disconnect the Bluetooth earbuds. Now, this only happens on that specific device. I have a cheap Bluetooth speaker as well but my phone can easily connect to the Wi-Fi network. I have seek for Nokia's chat support but the solution they gave me wasn't for long term. Does anyone also has this kind of experience with their device? And does anyone know how to resolve this problem?
Bluetooth frequency range overlaps with Wifi 2.4GHz band. So if BT device working frequency clashes with Wifi 2.4Ghz channel your access point using you will have connectivity issues. You can try re-configuring your Wifi access point and selecting another channel. Or ditch 2.4Ghz band and use 5Ghz only. I had a similar issue with UE Boom speaker and ended up using 5Ghz band for wifi.
qwertysmerty said:
Bluetooth frequency range overlaps with Wifi 2.4GHz band. So if BT device working frequency clashes with Wifi 2.4Ghz channel your access point using you will have connectivity issues. You can try re-configuring your Wifi access point and selecting another channel. Or ditch 2.4Ghz band and use 5Ghz only. I had a similar issue with UE Boom speaker and ended up using 5Ghz band for wifi.
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Now that you mentioned it, the audio does act up when using my Bluetooth devices near my wireless mouse, which also uses 2.4GHz band.
But as I said before this only happens on my true wireless earbuds, and not on my Bluetooth speaker. Does that mean that my speaker uses a different frequency?
yottabytenOugat said:
Now that you mentioned it, the audio does act up when using my Bluetooth devices near my wireless mouse, which also uses 2.4GHz band.
But as I said before this only happens on my true wireless earbuds, and not on my Bluetooth speaker. Does that mean that my speaker uses a different frequency?
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Bluetooth operates in range 2400 to 2483.5 MHz (79 channels having 1Mhz width, plus two guard channels), while Wifi 2.4GHz operates in range 2412Mhz to 2484Mhz (12 overlapping channels of 20/40 Mhz width). So your speaker uses one of those 79 channels which does not clash with your WiFi, while earbuds use some channel causing interference. Unlike Wifi you cannot configure your earbuds/phone to use another BT channel to avoid clashes with Wifi.
As I said before you can try reconfigure your access point to use another 2.4GHz channel. But in my case reconfiguring Wifi AP did not help too much, because I have a noisy neighborhood with lots of access points operating in 2.4GHz band, so selecting available channel not clashing with bluetooth and not deteriorating Wifi performance appeared an impossible task, so I resorted to 5Ghz band.
qwertysmerty said:
Bluetooth operates in range 2400 to 2483.5 MHz (79 channels having 1Mhz width, plus two guard channels), while Wifi 2.4GHz operates in range 2412Mhz to 2484Mhz (12 overlapping channels of 20/40 Mhz width). So your speaker uses one of those 79 channels which does not clash with your WiFi, while earbuds use some channel causing interference. Unlike Wifi you cannot configure your earbuds/phone to use another BT channel to avoid clashes with Wifi.
As I said before you can try reconfigure your access point to use another 2.4GHz channel. But in my case reconfiguring Wifi AP did not help too much, because I have a noisy neighborhood with lots of access points operating in 2.4GHz band, so selecting available channel not clashing with bluetooth and not deteriorating Wifi performance appeared an impossible task, so I resorted to 5Ghz band.
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I see. That really puts me at ease. I thought my device was somewhat broken.
Oh, I just received the December patch yesterday and my problem somehow disappeared. While writing this I am using the aforementioned wireless earbuds and so far, it doesn't do that constant connect and disconnect.
Probably earbuds/phone auto-selected another BT channel after the phone update.
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.
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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
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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
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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.
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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
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(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.
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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.
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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.