Hello all!
As the title suggests, I found out that the networks operating on these channels are not seen by my Le Max2.
Up to now I had no any problem regarding this, and I was also not aware that I cannot see a wifi network with this phone. It all came to light about a week ago at my workplace where we have multiple Cisco routers installed on various places. Moving around, I noticed that some networks show up, some don't. It's frustrating to see that you have no network where you'll spend your next hours.
I changed the modems, hoping that it will solve the problem, and it kind of did for some time. I was using 26s modem for a long time and all was fine. Then suddenly the networks started to disappear and I was forced to try various versions. With 016s US it worked for about 2 days, then again stopped detecting the networks. After that I've changed multiple modems from 023s to RU, to developer, to US again, etc... Nothing worked. I then used the modules in Magisk and Xposed to extend the wifi channels, they also didn't work...
Currently running AICP 8.1 on my X820, but switching between the ROMs mostly, as I'm not settled on a specific one. I guess that now I'm having 028s modem installed. There is no option to change the settings of the routers as they are locked down.
Any ideas?
Thanks in advance!
I had exactly the same problem - several wifi routers cant be seen by my phone, sometimes they appeared in wifi list (strange, but only when Sim card was inserted, didnt test if it was channel numbers related), but all those problems disappeared and now my x829 can see my router everytime even without sim inserted. It got fixed for me after flashing India 19s stock rom - try it out if you haven't already - https://forum.xda-developers.com/le-max-2/how-to/le-max-2-official-stock-firmware-links-t3433761
Thanks a lot. I cannot download the full ROM, but I will try just the modem. The Internet connection is quite bad for downloading a file that large.
Will post the results after flashing the modem.
Hello again.
After installing the Indian 019s modem, still I couldn't see the networks. Reinstalled aicp, but this time after installation, the airplane mode was Off and the phone received GSM signal. Now looks like I can see the wifi networks on channels 12 and 13.
I understand the relationship between the sim card and the WiFi channels, but isn't there something that can be done to set it manually, and something that will work?
Like I told - only switching to Full India 19s stock rom, not modem only helped me and btw fixed 4g network drops problem.
Thanks for the answer. Going back to the past is not the option unfortunately. All this "Wi-Fi channel" problem is ROM related, you are right, and it depends if the developers added a region or not in their ROMs.
I searched a lot in the last days and looks like the culprit is wifi-service.odex that is located in system/framework/oat/arm64. This file takes information from the SIM card once it receives GSM signal and it determines the region where you are located. In this way, it restricts the wifi channels. Unfortunately if you don't have GSM signal (like me), then it limits the working channels to 1-11, not showing 12 and 13. As soon as the GSM signal appears, and the phone recognizes the region as being an unrestrictive one, then it releases the channels 12 and 13.
The thing is that once this file gets modified, the restrictions are gone. Most of the users reported that setting the zone to US is the best as it is one of the less restrictive. I hope that the devs will consider this in their future releases.
Now, what can I do?! I can flood all the development threads with this request, or try to modify the file myself. As I'm not that good in decompiling apps, I will still try it, not even considering the option no 1.
Maybe somebody with a bit more experience can give me a hand and change the wifi-service.odex
valy_cta said:
Thanks for the answer. Going back to the past is not the option unfortunately. All this "Wi-Fi channel" problem is ROM related, you are right, and it depends if the developers added a region or not in their ROMs.
I searched a lot in the last days and looks like the culprit is wifi-service.odex that is located in system/framework/oat/arm64. This file takes information from the SIM card once it receives GSM signal and it determines the region where you are located. In this way, it restricts the wifi channels. Unfortunately if you don't have GSM signal (like me), then it limits the working channels to 1-11, not showing 12 and 13. As soon as the GSM signal appears, and the phone recognizes the region as being an unrestrictive one, then it releases the channels 12 and 13.
The thing is that once this file gets modified, the restrictions are gone. Most of the users reported that setting the zone to US is the best as it is one of the less restrictive. I hope that the devs will consider this in their future releases.
Now, what can I do?! I can flood all the development threads with this request, or try to modify the file myself. As I'm not that good in decompiling apps, I will still try it, not even considering the option no 1.
Maybe somebody with a bit more experience can give me a hand and change the wifi-service.odex
Click to expand...
Click to collapse
Hi,
you asked for help at "LG G4 WiFi Fix - Always all channels on 2.4 GHz" (https://forum.xda-developers.com/showpost.php?p=76161940&postcount=10)
Please do not "flood all the development threads with this request". Thank you.
If you need help from specific users you can link them or quote their posts. That should be enough.
Here are some suggestions for investigation:
-Analyze the Logacat outputs while you activate airplane mode.
Search for lines like "country code to" or just the word wifi.
For that you could use the app Catlog, but I recommend using ADB to read logcat outputs.
For more details read https://forum.xda-developers.com/showthread.php?t=1726238
If you found something interesting, post it here as a filedump or in HIDE tags.
-Analyze your /system file structure. Different Android versions and devices use different file structure.
".jar" files could be replaced by ".odex" files. Sometimes there a ".oat" files.
Newer smartphones have arm and arm64 folders.
You can create a dump of your system's framework structure with
Code:
ls -lR /system/framework > file-structure.txt
And please provide more details from your phone, e.g. exact Android version, ROM version, rooting status, ...
If you want, you can upload wifi-service.odex or other files of your ROM.
Maybe someone can analyze them for you.
-Search for files in /data/data and /system that could be releated to your issue.
For example /data/data/com.android.providers.settings and /data/data/com.android.providers.settings have interesting ".db" files.
In /system/etc/wifi one will find the wpa_supplicant.conf
There are other files that should be inspected.
Good luck :fingers-crossed:
Related
Hi all,
Got a problem that I can't seem to find any suggestions on how to fix here on the forums.
My i-mate Jamin's wireless doesn't automatically detect wireless networks, and even when I specify the configuration manually, it won't connect either. So, there is no detection of wireless (the wifi does turn on alright), and the 'wifi on' tower icon appears, but doesn't try and search or connect.
I was starting to think this was a 100% hardware problem, but I found that if I try and create an ad-hoc network with my Jamin, other devices can see it. However, when actually trying to connect to the ad-hoc network, the Jamin still keeps trying to connect unsuccessfully.
This problem existed on WM5 (my original rom) and has still been the same on all WM6.1 roms I've used (ShadoW, iProphet etc).
Any suggestions on a software angle, or what to look for in terms of 'broken' hardware if I were to pull the device apart?
Cheers
try to update the ROM and the SPL, but be carefull
Thanks for the suggestion, but I've done both. I've got the HardSPL on my device, and I've got CloudyFa's WM 6.1 rom (and as I mentioned, I've tried about 3 other WM6 and WM6.1 roms too)..still no luck though.
It does, however, come up with the signal strength icon (like it can almost see the network) if you try and manually configure a network you know exists (eg my home network). It doesn't manage to connect to it though - just comes back and says 'unavailable'.
check if it is encrypted with WPA2. I think that version of cloudyfa is not compatible with that kind of encryption.
Zero|Cool said:
check if it is encrypted with WPA2. I think that version of cloudyfa is not compatible with that kind of encryption.
Click to expand...
Click to collapse
Definitely is only WPA here at home. Tried disabling it to no encryption, and likewise it doesn't work at my university (WPA) or at public wifi hotspots (no encryptions) or if you use WEP either. I've tried every setting on my router - and like I've mentioned, tried it in various other locations and routers...
Definitely something wrong with my device..but who knows what it is
RockDJ20 said:
Definitely is only WPA here at home. Tried disabling it to no encryption, and likewise it doesn't work at my university (WPA) or at public wifi hotspots (no encryptions) or if you use WEP either. I've tried every setting on my router - and like I've mentioned, tried it in various other locations and routers...
Definitely something wrong with my device..but who knows what it is
Click to expand...
Click to collapse
Try updating the radio ROM.
http://wiki.xda-developers.com/index.php?pagename=Prophet_Radio_1_Upgrade
same problem here...never found a solution....
thycpt737 said:
same problem here...never found a solution....
Click to expand...
Click to collapse
Try a WM5 official ROM with a different Radio ROM.
l3v5y said:
Try updating the radio ROM.
http://wiki.xda-developers.com/index.php?pagename=Prophet_Radio_1_Upgrade
Click to expand...
Click to collapse
Any suggestions as to the best version? I've upgraded from the base one to 2.20.21.
Also, how does the main memory go during this update (can't remember from last time I did it) - does it get erased / should I back things up?
Thanks
RockDJ20 said:
Any suggestions as to the best version? I've upgraded from the base one to 2.20.21.
Also, how does the main memory go during this update (can't remember from last time I did it) - does it get erased / should I back things up?
Thanks
Click to expand...
Click to collapse
Main memory should be fine, nothing is wiped.
As to the best version, I'd suggest trying a few, personally, I think 2.19.21 is the best, but that may just be me and my Prophet...
l3v5y said:
Main memory should be fine, nothing is wiped.
As to the best version, I'd suggest trying a few, personally, I think 2.19.21 is the best, but that may just be me and my Prophet...
Click to expand...
Click to collapse
Yep, main memory was fine. I've upgraded to the latest radio rom on that page, but still no luck.
So I've tried that one, your one was my original one (2.19.21) and my last one (2.20.21). Doesn't seem like it's a fix unfortunately..
Thanks for the help all the same. Anything else I could try?
Have same problem after I installed :touchflo 3d look.
RockDJ20 said:
Hi all,
Got a problem that I can't seem to find any suggestions on how to fix here on the forums.
My i-mate Jamin's wireless doesn't automatically detect wireless networks, and even when I specify the configuration manually, it won't connect either. So, there is no detection of wireless (the wifi does turn on alright), and the 'wifi on' tower icon appears, but doesn't try and search or connect.
I was starting to think this was a 100% hardware problem, but I found that if I try and create an ad-hoc network with my Jamin, other devices can see it. However, when actually trying to connect to the ad-hoc network, the Jamin still keeps trying to connect unsuccessfully.
This problem existed on WM5 (my original rom) and has still been the same on all WM6.1 roms I've used (ShadoW, iProphet etc).
Any suggestions on a software angle, or what to look for in terms of 'broken' hardware if I were to pull the device apart?
Cheers
Click to expand...
Click to collapse
Same problem here
Hey there, as I said befor I had the SAME EXACT PROBLEM (Vodafone S200 initial firmware - flashed several ROMS with no succes on wifi and finally decided to stay with bikertibi's 23102).
I think I somehow came across the solution (or the solution came across me) about the "when I turn on the wifi..."
It does:
1) look like its turned on as the upper icon appears and it says "on" on the display.
2) beeps the green led on the front speaker (or whatever is that)
BUT
It does not:
1) beep the radio signal (two waves) on the "wifi on" icon.
2) Find networks available
warning: my level of knowledge on PDA's is somewhere over the bottom limit so basically my interpretations of the solution will be more of that (interpretations) than it should be. So I beg for someone that knows what he's doing to try it and explain again.
Okay, after searching the unsearchable and MAKING SURE that it was DEF. NOT the USB cable, decided to give it a try to that icon "ADD NEW". That icon appears instead of the available networks, 'cause as I said my prophet wasn't detecting them.
So, I "added" a new one with ad-hoc (that is: tab on "add new", select ad-hoc, put a silly name and say yes to all) and then INSTANTLY and MAGICALLY (yes, Im THAT lamer) it all started to find networks all over the howse.
Other thing that might have been something on the process is that I was having my laptop with the wireless connected. At the first moment I connected the adhoc with the laptop but then tried to connect to another next door network with SUCCEED.
Finally, deleted the new added silly named network and it is still recognizing networks available.
PLEASE, SOMEONE THAT KNOWS ABOUT THIS, EXPLAIN IT WITH CLEAR WORDS!!!!
Hope it helps
Re:
Maybe you should check your network to see anything wrong with it...
There's nothing wrong with the network you guys. I've been having the same problem for over 3 years? Couldn't quite remember.
I STILL have my Qtek s200 with me now. Alive and kickin'. I still have a problem with my wifi. I can connect alright, and browse alright. BUT only if I'm 2 feet near my router. The reception is extremely poor 3 years back, still is extremely poor now. This is not a coincidence. I think something's wrong with our devices. Tried doing everything. cooked, uncooked, stock. original radio, ALL radio. Still the same. Same exact distance, the reception weakens after 2 feet. AND 2 FEET is way to short for WIFI browsing.
To add more that there is nothing wrong with my network at home:
1. got no password
2. I have a old Nintendo DS lite. Works Fine.
3. Got a Wii
4. Got an Old Xperia X1 (not quite old)
5. Wifey's on C905
6. Got a China Iped
7. Using an HTC HD7
8. My OLD MSI Laptop has WIFI connectivity.
9. My Sis got an Aino.
that's basically it, an everyday home WIFI activity connectivity. AS for my Prophet. Still looks black good. but still connects no good. everythng else connects fine though, beaming IR things, bluetoothing things. pretty much normal. All except WIFI.
3 years ago, I thought it was just me.
I bought a Samsung Galaxy S III while on vacation. I didn't really want a US model, since I already had a Galaxy S II and the only compelling reason I would upgrade was for the quad core Exynos.
Well here I am back States-side, and it's been working fine for a week or two. Last night I suddenly lost the ability to connect to WiFi networks.
Basically I can search for a connection, it will show up and say it's "Saved," but it will not connect, even if I manually choose the option. If I choose "Forget" and reconnect, it will connect briefly for a few seconds and promptly disconnect again.
I've tried the usual steps of rebooting, checking my network, etc. I've gone as far as reflashing the firmware which doesn't seem to fix my issue.
I have several other devices and none of those have issues connecting to my wireless network. I've tried a couple different AP products, including an Apple Airport Extreme, a Linksys WRT-600N, and a bunch of really old APs with a different chipset manufacturers, none which seem to work.
For OS, it's currently on Android 4.0.4 with the stock Samsung TouchWiz interface, no carrier customization.
Since returning/warranty for this device is out of the question, I am looking for a possible solution to my issue. I am not a big Android user. I used to be big on Symbian, and now I'm mainly an iPhone user. I have an Android phone to keep up with the times, so to speak. Is it possible I'm missing something? Could I have changed a setting that would cause my wireless issues?
Thanks!
(Tried searching this topic, didn't turn anything up)
I'm having the same problem too. Everything connects except for the S3. If I reboot the router it works for a day or so then the problem re occurs.
If you get disconnected meaning there's interference in the frequency range, you could change the channel so it doesn't overlap with your neighbors' or your other APs, remember any AP operating on the same channel or nearby channels in range is likely to cause signal to interfere with another AP's wifi signal.
cixtim3 said:
If you get disconnected meaning there's interference in the frequency range, you could change the channel so it doesn't overlap with your neighbors' or your other APs, remember any AP operating on the same channel or nearby channels in range is likely to cause signal to interfere with another AP's wifi signal.
Click to expand...
Click to collapse
I had similar problem. A factory reset fixed it.
Sent from my GT-I9300 using xda premium
I tried another factory reset and I'm still experiencing this issue. I'm a bit bummed out at the moment. I can't connect to other networks either. At least I have cellular data to work with for the time being, but I expect I'll get throttled sooner or later.
cixtim3 said:
If you get disconnected meaning there's interference in the frequency range, you could change the channel so it doesn't overlap with your neighbors' or your other APs, remember any AP operating on the same channel or nearby channels in range is likely to cause signal to interfere with another AP's wifi signal.
Click to expand...
Click to collapse
I don't think it's an interference issue.
Like I said, none of the other devices have connectivity issues. I haven't really changed my wireless setup for the last 10 years. Always the same channels (with difference channels for each overlapping AP—channels 1, 6, and 11). My cordless phones all use DECT which runs on 1.9GHz and I usually have Bluetooth off when at home. As for neighbors, the distance between our homes are far enough I am never really in range of their networks.
If enabled, turn off power saving
same problem as yours. i've replaced the kernel and still testing.
I have this problem, i think it's hardware problem, just updated the f/w hasn't made it better.
Try adding your wifi manually and select correct security protocol....it resolved an issue like this on my iphone4s.
omeryounos said:
Try adding your wifi manually and select correct security protocol....it resolved an issue like this on my iphone4s.
Click to expand...
Click to collapse
it doesn't work for the SGS3, it's a known problem, i've checked a few sgs3 and some have this problem including mine, i'm changing my unit tmr.
Has there been any temp fix for this? I've been noticing this a lot more when using WhatsApp, usually you can see the last time your contact has been on, but it only shows if there is a current connection to the internet. When I'm connected to the wireless, it'll show up but after a while, I assume the wireless loses connectivity (sort of) and it won't show the last time they were on. The thing is though, I'm able to get to any pages like normal, so it doesn't actually lose connection.
Why don't you flash a better rom~~
S3 wlan bug
Paranoid Android wlan bug
Hello all together
I need flash PA v2.1 on my SGS 3 !
I have problems with the Galaxy S3 and WLAN simply gets no connection together!
I've already tried all possible steps like Stockrom flash with Odin to the bootloader from the Android 4.0.4 to get! Because it means that even if wifi is broken, you should flash back to flash and then stockrom Paranoid! Wifi can not connect!
I count times on what I've already done everything without success:
ICS 4.0.4 STOCK
wipe data
wipe chache
wipe Dalvik
Permission fix
Flash paranoidandroid
flash gapps jb
flash hw compressor
Wlan ist broken
Then I created a backup of it.
Have again flashed back to stock 4.0.4 ics because I had suspected at the bootloader.
Ics 4.0.4 on it again as everything was wiped and the backup recorded. Again the bow
Then cm 9 installed as described
there is also the wlan bug
from CM9 paranoidandroid
still wifi bug
then back to stock and on CM10
end result
wlan goes
paranoid then flashed wireless bug
then of stock on CM9 on from there and CM10 on paranoidandroid wlanbug
from CM10 by backup still wifi bug.
I just do not know how to fixxen it.
Would appreciate your help very
fix permission reboot
've Tried all sorts of variations but always without success
Please help I really been at a loss why ?!
Am grateful for every tip!
owensnoopy said:
Why don't you flash a better rom~~
Click to expand...
Click to collapse
Really?
Sent from my SGH-T999 using Tapatalk 2
I did a search and found related threads, but none that answer my question directly. Apologies for the flood of question threads by myself, I'm really putting a lot of effort into learning how to develop for Android though.
So as the thread title states, do I need the source code for a ROM to support it properly and fix any bugs that may arise? Right now, I'm simply using the android kitchen to decompile ROM.zip's and than editing the files that are extracted. I know if your building straight from source, there's a hell of a lot more work that needs to be done to make a custom ROM, but unfortunately I'm stuck with a laptop that only has 10GB left on the HDD so I can't install ubuntu and compile from source as I simply do not have enough storage. (Everything on my HDD is vital, I've cleaned as much as I can and can't really remove anything else)
So can I fix any and all bugs and add feature implementations to a ROM by simply decompiling them and than editing the files inside? Seems to have worked for me so far, but I'm having a hard time with the camera, which has made me wonder if it's even possible to fix the camera without the source code seeing as I probably need to add/update libs and files. Is that possible without the source code? Or am I pretty much screwed here?
Thanks in advance to anyone that can answer my questions! :good:
Edit: Also I would highly appreciate if someone can tell me if it's possible to force the phone to connect to only HSPA+ networks or WCDMA only as I've found it to be called in the phone settings. If I dial *#*#4636#*#* and change the network to WCDMA only, it'll work for a while but eventually my phone goes back to trying to connect to 3G networks as well. The reason I ask is because the place I just moved into has horrible reception and my phone has only 1-3 bars at most. It'll constantly switch between 3G and HSPA+ which causes my data to drop while it's switching, and for some reason 3G doesn't work if I tether to my laptop but HSPA+ does.
Can it be done with a build.prop tweak or some other system file that controls the radio settings?
Hi,
I've just gotten a Galaxy S2 and I'm not able to switch on the WiFi-adapter... I have Android 4.0.4 on it and it just tells me that tha WiFi is gonna be activated endlessly...
I've searched here in the forum and on the internet a bit and it seems that many people encountered similar problems after they've updated from an older software version to ICS... I've already tried many things people reported on those threads to get their WiFi working again like:
every kind of wipe
downgrading to a Gingerbread firmware
using cutom kernels/ROMs (AOKP-Rom, CyanogenMod, Siyah-Kernel)
many different APKs that seemed to fix the WiFi issue on some devices (like WiFix or FXR WiFi fix and rescue)
but nothing of the above mentioned approaches worked out for me...
I've also found a post of someone who managed to get it working by making "wifi:wifi" the user of /data/misc/wifi/wpa_supplicant.conf and change its permissions to 0777... This didn't work out neither...
And here's the really strange thing now: I was able to connect to our home network once. All i had to do was to change the WLAN-frequqncy bandwidth (I'm not sure how it's called on an english firmware, I use a german one) in Settings/WLAN/Advanced from "Auto" to "2,4GHz" for that is what I'm using at home... After I got the WiFi working with this i restarted the phone to see if this really solved the problem, but then the WiFi was gone again and since then I'm not able to change this setting anymore because the phone doesn't save any changes I make for this option in the Advanced settings anymore. When I change this setting, leave the advanced settings section tha WiFi doesn't work and when I open advanced settings again the WLAN-frequency bandwidth is set to "Auto" again.
So I'd like to ask if anyone has an idea what else I might try to get it working or if anyone knows where the config-file is where the above mentioned settings are saved so that I could try to change this manually or if anyone encountered a similar problem and already knows the solution for it...
Btw, I don't think that this is a hardware issue because like I mentioned above I was already able to connect to the network successfully once...
thanks in advance
disi01 said:
Hi,
I've just gotten a Galaxy S2 and I'm not able to switch on the WiFi-adapter... I have Android 4.0.4 on it and it just tells me that tha WiFi is gonna be activated endlessly...
I've searched here in the forum and on the internet a bit and it seems that many people encountered similar problems after they've updated from an older software version to ICS... I've already tried many things people reported on those threads to get their WiFi working again like:
every kind of wipe
downgrading to a Gingerbread firmware
using cutom kernels/ROMs (AOKP-Rom, CyanogenMod, Siyah-Kernel)
many different APKs that seemed to fix the WiFi issue on some devices (like WiFix or FXR WiFi fix and rescue)
but nothing of the above mentioned approaches worked out for me...
I've also found a post of someone who managed to get it working by making "wifi:wifi" the user of /data/misc/wifi/wpa_supplicant.conf and change its permissions to 0777... This didn't work out neither...
And here's the really strange thing now: I was able to connect to our home network once. All i had to do was to change the WLAN-frequqncy bandwidth (I'm not sure how it's called on an english firmware, I use a german one) in Settings/WLAN/Advanced from "Auto" to "2,4GHz" for that is what I'm using at home... After I got the WiFi working with this i restarted the phone to see if this really solved the problem, but then the WiFi was gone again and since then I'm not able to change this setting anymore because the phone doesn't save any changes I make for this option in the Advanced settings anymore. When I change this setting, leave the advanced settings section tha WiFi doesn't work and when I open advanced settings again the WLAN-frequency bandwidth is set to "Auto" again.
So I'd like to ask if anyone has an idea what else I might try to get it working or if anyone knows where the config-file is where the above mentioned settings are saved so that I could try to change this manually or if anyone encountered a similar problem and already knows the solution for it...
Btw, I don't think that this is a hardware issue because like I mentioned above I was already able to connect to the network successfully once...
thanks in advance
Click to expand...
Click to collapse
There are some reports of leaked acid from the internal button battery (BAT500) which ruined some surrounding components, such us some resistors causing WiFi malfunction.
Not sure if that could be your case, but it could be worth give it a try and disassembly your SGS2 just in case. If you have a damaged/leaked internal battery then you could just remove it and clean the zone with CRC. That battery just helps to store the date and time when the "big" battery is removed.
This is a link to a spanish forum where you will find some pictures of the affected battery: http://www.htcmania.com/showthread.php?t=454012
And this is a "how to disassemble SGS2" video: http://www.youtube.com/watch?feature=player_embedded&v=65pvAINg2ME
Please let us know if this helped!
I recently left the stock rom to install custom firmware on my Galaxy S5 (SM-G900T). I am noticing some strange behavior with LTE, and was wondering if anyone else was experiencing a similar issue. With LineageOS 14.1 (klte) currently, upon rebooting the device, it remains on HSPA+ for at least 10 minutes or so before connecting to LTE. If the device is kept running, and is not turned off or rebooted LTE will persist just fine, even if I change the radio selector to 3G or 2G, it will always go back to functioning LTE. On the Stock rom, I never experienced this issue. I previously ran Android 6.0.1, before upgrading to LineageOS. I have also tried with Cyanogenmod 13 to compare, and experienced the exact behavior. I have tried using the dialer menu on LineageOS (*#*#4636#*#*) to see if changing the radio settings makes any difference, sometimes it will make the device connect to LTE faster, after a reboot. If anyone has any insight on how to correct this that would be great. Thanks.
Which firmware version are you on?
invisiblewave said:
Which firmware version are you on?
Click to expand...
Click to collapse
My current firmware is G900TUVU1GPE1. I am also currently running cyanogenmod 13. I flashed back to stock today to take a look at some settings in the service menu. I tried setting LTE Band preference to 17, and it made no difference upon returning to cm 13.
My current "workaround" in cyanogenmod, after a reboot or poweroff, is to go to the dialer menu (*#*#4636#*#*), change radio to LTE/GSM/CDMA, turn off the radio, select LTE/GSM, turn on the radio, then immediately reboot. After a reboot, I can go to Cellular network settings, toggle 3G, then toggle LTE as preferred. I now have LTE, until the next reboot or poweroff.
I'm wondering if there is something in the stock service mode that has to be set, that cyanogenmod somehow does not have access to?
Thanks
I don't recall anyone else with the same issue. I'd try the latest modem, GPK3.
invisiblewave said:
I don't recall anyone else with the same issue. I'd try the latest modem, GPK3.
Click to expand...
Click to collapse
I just tried out the latest modem (GPK3), and I am still experiencing the same problem unfortunately. I don't believe I mentioned this earlier, but the device is unlocked and I am currently using an AT&T SIM. However, I have had no issue with the LTE persisting on reboot with the stock rom though. I'm curious if an alternate rom might be beneficial, perhaps resurrection remix. Have you ever tried your device with an AT&T SIM? Thanks again.
Partially solved. I discovered now that if I toggle 3G under Cellular Networks before rebooting or turning off the device, I am able to select LTE after a reboot or power off and connect instantly. Perhaps this is somehow related to using an AT&T SIM. This is a little better than before, at least.
I had this issue on CM13, since the CM forums are now gone, it's hard to find the old threads troubleshooting these problems. Here is my solution:
Yes!
Thank you for posting this, my last post was 3 months ago on this issue and I was documenting everything I troubleshooted and getting 0 responses..
There must be something glitched with the APNs on this phone, by default I was only seeing Straight Talk with GID set as the MVNO type, after disabling this I could see more APNs and add more, but could not discard them.
/system/etc/apns_conf.xml - Delete this (you can backup just incase)
Go back to APN Settings and Reset to default, then add your APN.
Once I saw HSPA+ I restarted my phone and got LTE and the radio seems less laggy now, only have been testing for a few minutes now.
Only issue is I restarted with LTE and LTE wouldn't come back, I toggled airplane mode and immediately got LTE (unlike before where the radio would take forever just to get HSPA+)
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You can use archive.org to view the old Cyanogenmod forums, the buttons don't usually work, so you will need to open them in new tabs.
https://web-beta.archive.org/web/20...org/topic/120995-cm13-lte-doesnt-work/?page=6
Also, if you have problems deleting that file (or simply renaming) try:
Try to use one of the following ways:
mount -o rw,remount -t rootfs /system
or
mount -o rw,remount -t rootfs rootfs /system
You also can use it for any folder that you need even root (/)
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http://stackoverflow.com/questions/18918456/android-2-3-read-only-file-system-stuck
I'm having the exact problem you're having. But it's not just my S5 on LOS 14.1, it's also my roommate with S4 on LOS14.1 and other roommate with S3 on CM13. We're all on Ting, we all started having the same problems at the same time, exactly like you describe.
I called Ting and they told me the towers were being "modernized", and that NONE of these phones had the optimal frequencies to use their new LTE. I got a long email from them about frequency compatibility but my initial research leaves me skeptical. All these phones have the frequencies tmobile says it uses, according to wikipedia.
So, they're sending us new sim cards, which I bet is just another BS fix, just like the 100 times they had me reset my APN settings and pull my battery : p
I installed the latest LineageOS on my S5. I am now seeing network issues. I get drops after calls, and wifi enable/disable. I see a "x" on the bars in the status menu.
If I cycle data on off it seems to reconnect - on but not on full LTE .
After a google search I found what could be the cause, the Verizion radio variant was added to the KLTE builds. You can see it on that forum at reddit.com/r/LineageOS/comments/605y43/please_dont_add_verizon_variant_into_klte/
I didn't actually try the "fix" they offer there because I don't quite understand it.
I gave it a shot and installed the force_g900f_ril_blobs.zip using TWRP and can report SUCCESS. Its a fix of sorts if you are on T-Mobile using another variant like me, in this case a G900V (S5 Verizon).