Not sure if it's something I've done unintentionally or since the update from yesterday sm-n9860
But I can no longer change the network mode on device for either sim card.
I was dicking around in a few semi dangerous menus lately like the *#*#2766... and *#*#2263... and samsung band selector app.
*#*#4636#*#* shows also unknown for preferred network type also.
did you restart the phone? that might revert some of the inadvertently made changes
Deleted
raul6 said:
did you restart the phone? that might revert some of the inadvertently made changes
Click to expand...
Click to collapse
Yes mate restarted it still wouldn't stick when making changes.
I partially fixed the problem by removing all 5G radios within the network service menu. So now it shows 4g/3g/2g etc but again can't change them value within to anything else like 2G as it won't stick.
All sorted now. Reset device.
Related
Okay, so I'm sure plenty of you have seen the news about how the dormant LTE radio on the Nexus 4 can be turned on to work with certain frequencies by using the *#*#4636#*#* command.
This command is new to me and so I figured I'd try it out on my Nexus S to see what it could do. Got to it easy enough and switched around the network types for a minute or two. Then when I satisfied my curiosity I figured I'd just change the network type back to the default "WCDMA preferred" and go on about my day.
Wrong.
My phone is now stuck on EDGE. I have turned it on and off, toggled airplane mode, toggled data, pulled the battery out for more than 10 minutes (I know it's very excessive) turned the phone off for a couple of hours, made sure that in the phone's Settings that "Use only 2G networks" is NOT checked, all to no avail.
On the 17th, when I did a speedtest on my phone, my download speed was 6183 kbps. Today, its around 167-180 kbps. Consistently.
I have made no other changes to the phone. And just to make sure that it isn't a Rogers network thing and that it is indeed my phone, I put my SIM card in my old HTC Dream. It got 3G just fine. And its download speed was a few mbps as well (about 2mbps).
I'm currently using CM 10.0.0 and am using the same radio I have been using for months with no problems (I9020XXKB3).
I honestly thought my little experiment would be as harmless as using Android's "Use only 2G networks."
Oh, as it's been quite a few hours, I've done my fair of research and found that people who had this problem somehow lost their IMEI. Mine is perfectly (especially since I haven't made any changes to my phone). It's value in about phone matches the IMEI written under my battery.
I hope I've been thorough enough. I have tried everything I could think of and done my Googling.
Anyone have any ideas on what else I can try?
179 kbps download speed is really painful ...
Put the code back in, and change the type back from wcdma back to whatever it was, this should fix your problem because WCDMA uses different frequencies for anything above edge. Frequencies that rogers does not transmit in. So changing it back will allow you to use 3g/H again
Sent from my awesome Nexus S
Default setting was "WCDMA preferred" and that's what I've left it at.
Why not factory reset?
you can try a reset, flashing a new rom, or if you're feeling particularly crazy, try using the different settings (other than wcdma), and see if it works.
I've tried all the other settings. And I really don't want to resort to a factory reset even with a nandroid backup.
Surely, there must be a straightforward fix to this.
Edit: Okay, problem solved.
Instead of changing the "Set preferred network type:", I pressed menu, chose "select radio band" and randomly selected "AUS2 Band."
It worked! Don't ask me how or why as I live in Canada, but I don't care! I never even touched this menu before. So strange ...
Edit 2: Umm... I can't find the mark "solved" option.
Hi,
I have a 32GB Nexus5 with Android 4.4.2. It was rooted. Last night all of the sudden the phone froze up on me and when I turned it off and back on it had deleted everything in the phone and just booted up as if the phone was new (Hard Reset maybe?). That was weird. But once it booted up for some reason my phone can't find any signal. It just has a blank signal icon on the top right corner. I switched sim cards with a few friends and its not the SIM Card. I added the APN Settings for my carrier (Straight Talk) and still nothing.
It's the first this ever happened. Today I flashed back a stock 4.4.2 image to my Nexus5 and set up the phone again but still can't get any network coverage. It's as if the antenna or something got damaged out of the blue.
I'm also including screenshots of the home screen highlighting the blank signal icon and screenshots of the Phone Status page that highlight that the mobile network is unknown and other information.
If anyone has any idea what this could be, please let me know
Screenshots:
Need 10 post to post outside links
wilomaldonado said:
Hi,
I have a 32GB Nexus5 with Android 4.4.2. It was rooted. Last night all of the sudden the phone froze up on me and when I turned it off and back on it had deleted everything in the phone and just booted up as if the phone was new (Hard Reset maybe?). That was weird. But once it booted up for some reason my phone can't find any signal. It just has a blank signal icon on the top right corner. I switched sim cards with a few friends and its not the SIM Card. I added the APN Settings for my carrier (Straight Talk) and still nothing.
It's the first this ever happened. Today I flashed back a stock 4.4.2 image to my Nexus5 and set up the phone again but still can't get any network coverage. It's as if the antenna or something got damaged out of the blue.
I'm also including screenshots of the home screen highlighting the blank signal icon and screenshots of the Phone Status page that highlight that the mobile network is unknown and other information.
If anyone has any idea what this could be, please let me know
Screenshots:
Need 10 post to post outside links
Click to expand...
Click to collapse
Have you gone into the carrier menu and checked the settings are right?]
dial
*#*#4636#*#*
turn the radio off and put your settings the way they should be depending on your service and carrier
select the band option and put it to the country and then save restart radio and reboot.
If this doesnt work then perhaps the files that contain the IME (i forget what they are called) blew out.
When I had my nexus s I kept a backup of them because it was pretty regular for people to accidentally delete them
good luck
tevil said:
Have you gone into the carrier menu and checked the settings are right?]
dial
*#*#4636#*#*
turn the radio off and put your settings the way they should be depending on your service and carrier
select the band option and put it to the country and then save restart radio and reboot.
If this doesnt work then perhaps the files that contain the IME (i forget what they are called) blew out.
When I had my nexus s I kept a backup of them because it was pretty regular for people to accidentally delete them
good luck
Click to expand...
Click to collapse
So the IMEI number for my Nexus 5 right now is 0. I called Google and they already sent me the RMA Form and will be getting a new Nexus5. However, I'm still curious as to why this may have happened all out of the blue and what steps I can take in the future to limit the chances of this happening again?
Btw... I tried to turn off the radio and continually pressed the button but never got a confirmation that it had turned off.
Best thing to do is backup your efs. And make it available to be flashed
sent from my HAMMERHEAD neXus
Hello,
I am experiencing a strange issue with mobile data, the most similar thread I could find about my issue is here:
http://forum.xda-developers.com/galaxy-s2/general/fix-workaround-mobile-data-connectivity-t1149716
I am using Samsung J1 SM-J100ML, Android 4.4.4, Kernel 3.19.17-366995, Mar 26 2015, bought new as unlocked rooted
The phone was purchased new and everything worked great for a few months. Recently I took a short trip overseas to Australia and bought an Optus SIM card and installed their android app from Google play (this was the only change I can think of that could have caused my issue). Upon returning home and using my normal SIM, I found my phone is now constantly switching between HSPA and HSPA+, sometimes many times per minute. This interferes with web browsing or using chat apps, as the connections seems it must reset, which takes a few seconds each time it switches. This issue is making is incredibly frustrating to use the mobile data now. I ruled out issues with the SIM card, no mobile data issues on my other Samsung devices in the same location.
From my searches on this forum, I want to try to access the setting "CHANGE HSPA REVISION" so I can lock my device to a frequency to prevent switching, or disable Fast Dormancy.
I tried codes such as *#301279# and *#*#9900#*#, but they are not working. Uninstalled Optus app and threw away their SIM card already. I also tried starting the phone in Safe mode, but I still noticed the mobile data issue.
I can access the ServiceMode using *#0011#. I tried many combinations of selecting "Back" and entering "Q" then "0" or "00", or "Q0", "Q00", "Q0000", etc.. but nothing works.
I called Samsung for help, but they never heard of ServiceMode, and recommended a Factory reset.
My options as I see it:
1. Factory reset (long process to backup all data, reset, restore... I want to avoid). I suspect my issue is software related and will fix the issue, but its not guaranteed.
2. Find the correct "Key Input" code so I can use the ServiceMode and change settings that may help.
3. Buy a new phone.
Any ideas? Any one know the correct Key Input code to get farther in ServiceMode for this device? Thanks.
As stated I'm using the LG G5 H830 T-Mobile variant. I am getting 4G LTE data connection and everything runs well (Not in any WiFi range) Yet for SMS and calling as well as mobile hotspot I get "No USIM card' error. This happened after wiping the system and formatting data. Rebooted recovery (as per instructions on forum) then installed the stock firmware & Patch with systemless root and xposed. After this I did factor reset when just pulling the sim didn't help. Still nothing. I reflashed just the stock firmware with TWRP and SuperSU and issue is still happening. I've disabled rebooted and enabled the phone radio. SIM is in good condition and tray as well everything is SECURE and should be good to go.
I'm assuming a new SIM might be a solution. But I'm not counting on it and with Labor Day tomorrow for me I wouldn't be able to pick one up for 2 days. So here I am...hoping someone might have a fix. I know I don't have many posts on here. But I am an experienced user....just not with the more basic of problems I guess
Thanks!!
Has anyone else experienced this yet? I'm just curious...I had it fixed for a couple days. I've formatted data and done complete system wipe. Tried it resetting phone with the COMPLETE zip and TOT using LGUP. I'm receiving texts. Not calls. Not able to send either. I've activated new sim, didn't help. LG support just told me to look into warranty. T-Mobile needless to say just wanted. Sim card does show stock tmobile short code contacts but phone number shows as unknown. Hotspot won't work. I've tried setting the phone number to the sim. Nothing.
Anyways. I don't think I messed with anything, even so I've done everything to start the phone from scratch. Going to replace it, just more or less curious at this point and maybe others have had the same issue.
I believe I had the same issue as you and it was driving me crazy. I was constantly wiping data, system, etc but my phone kept giving the message "roaming indicator off" where it should show the name of the carrier. This resulted in me having LTE data and that's it- no 3g, no phone calls, etc. I couldn't even access the mobile network menu.
What ended up causing the issue was the network mode setting under wireless networks. Keep in mind at this point I'm running a patched rom which now gives more options in the network mode menu than the phone came factory with. I have an area at work where I have to switch to 3g, GSM/wcdma preferred network setting, because although I have full LTE signal, my connection goes dead. When switching back from 3g I chose the setting lte/CDMA thinking this would force my phone to stay in lte mode due to another area on an upper floor where the phone will constantly drop lte.
Anyways this resulted in my phone saying roaming indicator unavailable, the inability to make or receive phone calls, and either the mobile networks or network mode menus being grayed out. When stuck in this mode there is no way to put the phone back into the standard "GSM/wcdma/lte" mode. Even a complete reflash won't fix it. I even used lgup, which worked for maybe a day until it force closed the phone app and went back to roaming indicator unavail. I wiped every partition and even reflashed radio firmware. Nothing worked.
What ended up fixing it was using an app called v10 hidden settings which allowed me to access the network mode menu directly and re-choose the lte/wcdma/GSM setting. Incidentally on first access to this menu through the app there are only two network settings available. Once you choose a GSM setting, the rest appear.
I'm not sure if this was your issue but I hoped this helped because this took me about a week to workout.
Somehow my s8+ loosing reception all the suddenly.
phone has never been dropped.
i am loosing cellular signal all the time. no mattere where i am.
first i thought it was software problem, an did all the right things. safe mode, checking third party apps,
hard reset, an all that.
then i downgraded the room back oreo to see if it helped, no luck ;(
changing sim did NOT help either.
any suggestions? i have no warranty left on the phone as it a bit over 2 years old.
Mine is doing the same thing, even with wifi. It started after the most recent update. I have been googling, but haven't found much so I assumed that it was localized to me. I have never had connectivity issues with this phone before.
Sent from my SM-G955U using Tapatalk
I am having the exact same issue, it all happened after I updated to android 9, even if you downgrade back to 8 it doesn't fix the issue, has anyone managed to find a solution ? Like henbone11 mentioned suggested sites with fixes from Google do not work. Thanks in advance
I was thinking bad modem software? Is it possible to get a older modemsoftware onto the phone with PIE installed?
Same problem here. Have not done any mods, always accepted the official updates.
Cant make or receive calls. (sometimes can make one or two calls right after restart). I do get text message notifications about missed calls. GSM data not working (sometimes seems to work for a bit but not enough to load a page or use maps.
WiFi and Bluetooth still work for me. so I'm using the s8 with another older phone for WiFi hotspot and calling.
Have done full factory reset, uninstalled all apps aso. Nothing brings it back - phone repair shops say they haven't heard s8 having these problems.
I have the same issue.
One day after I restarted my phone, it suddenly said no network connection. I did factory reset too, didnt fix it. Changed sim cards, still error.
I downloaded a widget that was supposed to turn the cell radio on and off. Cant turn the cell radio on either
Network Connection on s8
Mihkel.ee said:
Same problem here. Have not done any mods, always accepted the official updates.
Cant make or receive calls. (sometimes can make one or two calls right after restart). I do get text message notifications about missed calls. GSM data not working (sometimes seems to work for a bit but not enough to load a page or use maps.
WiFi and Bluetooth still work for me. so I'm using the s8 with another older phone for WiFi hotspot and calling.
Have done full factory reset, uninstalled all apps aso. Nothing brings it back - phone repair shops say they haven't heard s8 having these problems.
Click to expand...
Click to collapse
Did you get any luck fixing your s8+ network problem?
no, still no network.
have done everything I can without rooting.
Tried different SIM cards and network providers - no luck.
vargens said:
Somehow my s8+ loosing reception all the suddenly.
Click to expand...
Click to collapse
Hi,
This issue is quite easy to fix. As modem performance (connectivity) is linked to model configuration. Another word for this is CSC.
It is fine to change your CSC. Download a benchmark tool to monitor your connectivity and record values and do not feel afraid to update / change your CSC.
It can take a while to find the right one for you, not it will be worth it. Don't worry.
Note: CSC changer can be easily found in XDA.
Note: a restart may be required to take the configuration into account.
Cheers
Spyrou
Hi there mate!
spyrou007 said:
Hi,
This issue is quite easy to fix. As modem performance (connectivity) is linked to model configuration. Another word for this is CSC.
It is fine to change your CSC. Download a benchmark tool to monitor your connectivity and record values and do not feel afraid to update / change your CSC.
It can take a while to find the right one for you, not it will be worth it. Don't worry.
Note: CSC changer can be easily found in XDA.
Note: a restart may be required to take the configuration into account.
Cheers
Spyrou
Click to expand...
Click to collapse
Hi.. i want to do your solution.
What benchmark tool to use? And is there a tutorial for the process?
Thank you so much for the idea.
I moved to another country and used a local sim card, worked for a couple of days and then it's suddenly no network.
IMEi still ok.
Phone still detects my number.
I've tried
resetting network setting
factory reset
Flashing latest unbranded firmware via Odin
Still no luck.
The mobile radio switch won't turn on.
Ping test fails.
Sometimes I wonder if this is a hardware issue.
spyrou007 said:
Hi,
This issue is quite easy to fix. As modem performance (connectivity) is linked to model configuration. Another word for this is CSC......
Click to expand...
Click to collapse
Why would this work? Phone worked normally before. Same country/same provider. Sometimes still connects to data network for a minute and then drops all cellular connection again.
Why would changing CSC work.
Asking because changing CSC is not easy for me and I don't see why would I need to change it if it worked perfectly before. NFC payments worked(still work) , data/voice calls worked perfectly for 2 years. Then suddenly didn't.