[q] urgent?! Never get replies - Galaxy S I9000 Q&A, Help & Troubleshooting

I have looked everywhere and i can't seem to find a solution!? I have recently installed JVK firmware on my galaxy s and after the update the data connection randomly cuts out for a while (im not sure whether its random or timed) and the 3g symbol stays on the screen but doesn't change to the 'H' symbol or have the orange and green arrow symbols lighting up!?. I have manually entered the CSC and still no dice! *NOTE* Data sometimes works and also I have had this problem in the past and ended up flashing back to a stock ROM so it's not a hardware problem!?. Do I need to install my providers modem again? if so I'm with Optus.
Thanks!

In Settings, check under Wireless and Networks > Mobile Networks > Network Mode and make sure it is set for GSM/WCDMA Auto Mode.
Also check to be sure your APNs are correct.

rschenck said:
In Settings, check under Wireless and Networks > Mobile Networks > Network Mode and make sure it is set for GSM/WCDMA Auto Mode.
Also check to be sure your APNs are correct.
Click to expand...
Click to collapse
Yes, both of these are correct as for the APN's as far as my resources have shown me they're correct but if they weren't i wouldn't be able to connect in the first place? thanks BTW if it helps the same thing happened when i used Darky's ROM

Related

Force WCDMA Only

Hi all,
Would like to check if anyone knows how could i set "WCDMA Only" (3G Only) on Galaxy S?
I can only Force 2G only via the settings menu, but not 3G only.
Managed to access the "Phone Info" menu via *#*#4636#*#*, selected "WCDMA Only" from the dropdown box.
However, nothing seemed to be set nor i see any button to save the choice?
Anyone happen to know how can i have it set? Or i could manually set it by applying some settings somewhere?
Thanks alot!
you cant force 3g... you would get no signal if you didnt have a 3g connection
boinger66 said:
you cant force 3g... you would get no signal if you didnt have a 3g connection
Click to expand...
Click to collapse
I know that. However, such settings are available in Nexus One.
i2umi said:
I know that. However, such settings are available in Nexus One.
Click to expand...
Click to collapse
It is also available on the HTC Desire :
WCDMA only
GSM/WCDMA auto
GSM only
*#*#197328640#*#* > debug screen > phone control > network control > band selection
You need to do this after each reboot though as it does not stick.
Is there a way to shortcut this with anycut?
-Double Post-
Sent from my GT-I9000 using XDA App (Which seems less than stable...)
The app Network simplifies the procedure quite a bit. Haven't actually gone into a low signal spot yet to see if it fully works as intended though.
Sent from my GT-I9000 using XDA App
thank you very much..i have been searching this high and low...you save my day..
Thank you so much! This helped me diagnose the SGS and see if I have 1900 3G in my area (1 bar). here's a tip that I used for quick access to the debug screen just as a trial and it actually worked
Enter ONLY *#*#197328640#*# then hit add to contacts (notice there is no * at the end).
Give it a name (Samsung Debug Screen) and tap to edit the number and enter the final * at the end.
Save and exit. Now whenever u want to enter debug mode to change the network or other stuff just type *#*# and it should appear. Tap on the contact and voila!
clubtech said:
*#*#197328640#*#* > debug screen > phone control > network control > band selection
You need to do this after each reboot though as it does not stick.
Click to expand...
Click to collapse
Awesome, thanks for this! Lots of fun debug info in there.
boinger66 said:
you cant force 3g... you would get no signal if you didnt have a 3g connection
Click to expand...
Click to collapse
My operator doesn't have a 2G network... all they have is 3G. There's no point in my phone looking for anything other than a 3G network.
Solution added to FAQ
sorry to ask if this is already answered but how exactly to i get to CONFIRM my wcdma only selection? i check it and nothing happens, data connection stays on "G" symbol. I know for sure that at the place where i tested i get NO 3g signal. which means probably that i should be losing all signal after choosing wcdma only. that does not happen. also if i close the phone info app and reopen it, choice gets back to default (3g/gprs).
any help appreciated... I really need this.
forcing to only 3g is a bad move, i tested it on my n1 and i kept dropping calls once 3g lost signal.
raspdeep said:
forcing to only 3g is a bad move, i tested it on my n1 and i kept dropping calls once 3g lost signal.
Click to expand...
Click to collapse
I know but i need it for the internet.. and i need it badly.. please help anyone as soon as possible. thank you guys
Its available in the new firmware I9000XWJM1
Hey, its there in I9000XWJM1 and tested working great as expected! However its a beta so you may see other issues. Not sure if its there in latest stable.
Just to confirm, i upgraded my firmware to XWJM5 today, and i noticed that in settings > wireless and network > mobile networks, there's a new menu 'network mode' in which there's 3 options - auto / gsm only / wcdma only. Nice touch!
In answer to the cynics, there are times when browsing, when the phone is borderline whether to give you 2g or 3g, it does come in handy, and it's safer too, as if i have to browse on 2g it makes me want to smash the phone up!!
spark001uk said:
Just to confirm, i upgraded my firmware to XWJM5 today, and i noticed that in settings > wireless and network > mobile networks, there's a new menu 'network mode' in which there's 3 options - auto / gsm only / wcdma only. Nice touch!
In answer to the cynics, there are times when browsing, when the phone is borderline whether to give you 2g or 3g, it does come in handy, and it's safer too, as if i have to browse on 2g it makes me want to smash the phone up!!
Click to expand...
Click to collapse
LOL "safer"
@OP Although 'WCDMA only' mode may not be a good idea and hence not recommended but just to confirm
my current Build i9000XXJPH have following three modes
GSM/WCDMA (auto mode)
GSM only
WCDMA only
JM8 build also have this mode. I noticed that when I flash the i9000M (bell version) previously it didn't have these modes.

Switch from 2G to 3G

Recently bought a Samsung I897 Captivate. Its a unlocked phone and I'm using it in Argentina with Movistar. My previous phone was a Motorola Milestone, and it sometimes changed the connection from 3G / HSDPA to 2G (EDGE), in 3G areas. The solution was to go to APN settings, enable "2G only", then disabling it, and the phone instantly switched to 3G again.
However, the Captivate doesn't have such option. Setting the phone to Flight Mode its useless, it will keep connecting in 2G.
Only solution I found at the moment was to go to Network Mode (*#0011#) then navigate to Network Control => Band Selection, selecting WCDMA only, and then enabling Automatic again.
That seems to reset the connection.
I searched in the market for free and paid apps to help me fix this issue, but I found nothing, only the Toggle 2G app, but it only works with Cyanogen Mod.
I have some questions:
If I set the connection to WCDMA only, then I'll have no signal at all in 2G areas, right?.
Does anyone know a quicker way to do this?. I tried to make a shortcut to ServiceMode with dg Quickcut but when I try to open it it crashed the phone.
Thanks in advance.
Whipon.
Whipon said:
Recently bought a Samsung I897 Captivate. Its a unlocked phone and I'm using it in Argentina with Movistar. My previous phone was a Motorola Milestone, and it sometimes changed the connection from 3G / HSDPA to 2G (EDGE), in 3G areas. The solution was to go to APN settings, enable "2G only", then disabling it, and the phone instantly switched to 3G again.
However, the Captivate doesn't have such option. Setting the phone to Flight Mode its useless, it will keep connecting in 2G.
Only solution I found at the moment was to go to Network Mode (*#0011#) then navigate to Network Control => Band Selection, selecting WCDMA only, and then enabling Automatic again.
That seems to reset the connection.
I searched in the market for free and paid apps to help me fix this issue, but I found nothing, only the Toggle 2G app, but it only works with Cyanogen Mod.
I have some questions:
If I set the connection to WCDMA only, then I'll have no signal at all in 2G areas, right?.
Does anyone know a quicker way to do this?. I tried to make a shortcut to ServiceMode with dg Quickcut but when I try to open it it crashed the phone.
Thanks in advance.
Whipon.
Click to expand...
Click to collapse
as of right now, there is no "fix" for this. the best you COULD do is to flash Eugene's VibrantHybrid ROM where the "use 2g networks only" option does exist, but you'll lose GPS (for now)
Kaik541 said:
as of right now, there is no "fix" for this. the best you COULD do is to flash Eugene's VibrantHybrid ROM where the "use 2g networks only" option does exist, but you'll lose GPS (for now)
Click to expand...
Click to collapse
Thanks for the quick reply Kaik541.
Does the signal strength improve with that rom?.
Currently I'm using I897UCJH7 from samfirmware.
Whipon said:
Thanks for the quick reply Kaik541.
Does the signal strength improve with that rom?.
Currently I'm using I897UCJH7 from samfirmware.
Click to expand...
Click to collapse
you should revert back to JH3 if you're going to use Hybrid (I don't believe JH7 is compatible yet, there are some issues that cropped up with SRE, so it would be safer to do JH3, or even better JF6). I've seen slightly better reception and MUCH better battery life running Hybrid
Kaik541 said:
you should revert back to JH3 if you're going to use Hybrid (I don't believe JH7 is compatible yet, there are some issues that cropped up with SRE, so it would be safer to do JH3, or even better JF6). I've seen slightly better reception and MUCH better battery life running Hybrid
Click to expand...
Click to collapse
It seems it will be updated soon.
Maybe I'll give it a try.
Do you know if it removes the 850 band?.
I need it, because my carrier uses it for WCDMA.
Try this:
1. In the Market, download Any Cut. (This is a free app) 2. open Any Cut and choose New Shortcut 3. select Activity 4. Scroll down the list until you get to Phone Info 5. Select OK. (this will place the short cut on your homescreen) 6. Open the shortcut and scroll down until you see "Set Preferred Network Type" 7. Choose GSM only and you are set. This forces the phone to EGDE
I used this to force edge. Use google to download AnyCut, it doesn't exist on the market for the unknown reason
Sent from my SAMSUNG-SGH-I897 using XDA App
I just discovered Juice Defender. One of its features is to set phone to 2G automatically (seems very configurable). I haven't really had a chance to test it, but thought I'd mention it to you anyway
DarkVasyaK said:
Try this:
1. In the Market, download Any Cut. (This is a free app) 2. open Any Cut and choose New Shortcut 3. select Activity 4. Scroll down the list until you get to Phone Info 5. Select OK. (this will place the short cut on your homescreen) 6. Open the shortcut and scroll down until you see "Set Preferred Network Type" 7. Choose GSM only and you are set. This forces the phone to EGDE
I used this to force edge. Use google to download AnyCut, it doesn't exist on the market for the unknown reason
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Thanks a lot. I use dg Quickcut for that.
But, I don't need to force EDGE, I need a way to force 3G .
The phone usually switchs to EDGE in 3G areas, and I need to change it back to 3G.
I've used your suggestion to make such shortcut, changed it to WCDMA only, clicked the Disable Radio button twice (because it didn't changed to 3G), and when it switched back to 3G, I changed back the network to GSM / CDMA auto.
What about WCDMA preferred?. Will it try to allways connect to 3G?.
can yall not just dial * # * # 4636 #*#* scroll to the bottom and chnage it there, just so happens i posted a how to earlier in the general section, works on stock ROMS afaik.
also GPS still works
Whipon said:
Thanks a lot. I use dg Quickcut for that.
But, I don't need to force EDGE, I need a way to force 3G .
The phone usually switchs to EDGE in 3G areas, and I need to change it back to 3G.
I've used your suggestion to make such shortcut, changed it to WCDMA only, clicked the Disable Radio button twice (because it didn't changed to 3G), and when it switched back to 3G, I changed back the network to GSM / CDMA auto.
What about WCDMA preferred?. Will it try to allways connect to 3G?.
Click to expand...
Click to collapse
read my previous post.
it has a WCDMA preferred WDMA only (only uses 3g) and a bunch of others. read my post in general for a more detailed explanation.
Thanks a lot
xatrekak said:
can yall not just dial * # * # 4636 #*#* scroll to the bottom and chnage it there, just so happens i posted a how to earlier in the general section, works on stock ROMS afaik.
also GPS still works
Click to expand...
Click to collapse
Thanks, but Mesasone pointed me to a great app in the market.
Its called Samservmode. It opens service mode without entering any codes.
Anyways, thanks for your help .

No 3G with Darky's Rom 10.1

I finished installing Darky's 10.1 Extreme Mod onto my Samsung Galaxy S the other day, and since then I have not had any connection to a 3G network.
I live in Australia and my phone carrier is Virgin Mobile running on the Optus Network. Before I flashed over from a Voodoo Lag Fixed stock 2.2, 3G worked fine.
I have checked in the wireless and networks setting to make sure the phone is set to "Use packet data" under mobile networks (Data roaming is turned off), but it makes no difference. I have also turned packet data off and on to make sure. Network Mode is set to GSM/WCDMA (auto mode). During setup for Darky's Rom, I left the Modem to defualt settings, JQ1 or something.
I'm not sure what I have broken but I'd love some help getting 3G back. It is very limiting to what a good smart phone can do.
Thanks
which model of I9000 u have? most likely is a modem problem i installed GB in my GT-I9000T and i had to go back to froyo cuz i didnt had 3G and low network reception...i recommend you to wait for more versions of GB come out if that is your case...
what about your APN settings?
Settings -> Wireless and Network -> Mobile Networks -> Access Point Names
321C said:
which model of I9000 u have? most likely is a modem problem i installed GB in my GT-I9000T and i had to go back to froyo cuz i didnt had 3G and low network reception...i recommend you to wait for more versions of GB come out if that is your case...
Click to expand...
Click to collapse
So far as I can tell from the About Phone settings page, it is just a plain GT-I9000 with a Baseband of I9000XXJVO. Though I can't remember what it said before the flash.
DaRkMyk said:
what about your APN settings?
Settings -> Wireless and Network -> Mobile Networks -> Access Point Names
Click to expand...
Click to collapse
There is nothing in the APN Settings. Should there be names?
More Info
I looked up the APN settings for Virgin Mobile Australia and entered them into the phone but when I saved the new APN it didn't appear in the list. Just gone.
I inserted the SIM Card into an unmodified Samsung Galaxy TAB in which I have used this SIM card in the past. Still can't get 3G on the TAB, and there was no settings in the APN section. Could be a problem with the SIM card?
I also used a feature on virgin mobiles website to send the APN settings to the phone but they return an error when trying to send me the settings.
virginmobile com au/internet-on-your-mobile-phone/the-vibe/get-set-up
Oddly enough if I just enter in the name of the network and no other details, it does save the APN correctly and works fine again. Sweet
Thanks though all.
Lynx101 said:
Oddly enough if I just enter in the name of the network and no other details, it does save the APN correctly and works fine again. Sweet
Thanks though all.
Click to expand...
Click to collapse
Just as I suspected. Those are the 3G settings for your network. If you used Titanium Backup those settings are under [SMS/MMS/APN] Dialer Storage, just restore and reboot your phone and thats it.

[Q] Cynogenmod on Verizon; SMS and data work, but no voice

Now that you fine folks got s-off working on version 4.4.2 for the HTC One, I was able to put Cyanogenmod on it today. Things seem to work okay, except for the one glaring issue: I can't use the phone to make or get calls. If I look at Settings->About Phone->Status, I get this:
Network - Verizon Wireless
Mobile network type - LTE
Service state - Voiceut of Service / Data: In Service
Roaming - Not roaming
Mobile network state - Disconnected
I suspect that I might have the wrong "Mobile networks" settings in the Settings->Wireless & Networks->More section. For the Preferred network type, I selected "GSM/WCDMA/LTE", but I've tried a few others with no positive effects. For System Select, I'm set to Home Only. If I try to search for available networks, it returns an error and doesn't find any.
Any ideas? Thanks!
I was reading more into this, and people on Sprint found this issue when using Cyanogenmod last summer. I don't know if a solution was found, but the workaround was switching the network type to CDMA only, and then switching "back." The "back" is the key for me (I hope). What should it be set to? I don't remember what it was before I started messing around. It may have been global, but I tried that to no avail. Does anyone have a minute to pop into their settings and check? Thanks!

Stuck on verizon 3G, previously had LTE working.

Hello I'm having some issues getting LTE to work on my Nexus 6 running BenzoRom.
I am only able to get 3G, when I previously had LTE working for a very long time. I'm not exactly sure what happened but I tried clearing, dalvik cache, cache, restoring default APN settings, restarting my phone, flashing a new rom, putting in a different sim card (with LTE working) and nothing fixed the issue.
I'm guessing I should just flash stock rom but I'd rather not go through the hassle. I think it might be my APN settings since I vaguely remember messing with it but I restored back to default and LTE still did not show up.
What the heck happened?
Have you gone into the phone menu? If not, *#*#4636#*#* then select phone... And look at my screen shot; at the preferred network type and the turn off volte flag... Yours may say turn on. I reboot after selecting the network and turning on the volte flag
Then in settings/more/cellular networks there should be enhanced 4g/LTE mode, turn that on of it isn't already.
Ya, I'm a dope... Adding the screenshot I referenced.
https://goo.gl/photos/XvNLuScahZoR5fN47
Larzzzz82 said:
Have you gone into the phone menu? If not, *#*#4636#*#* then select phone... And look at my screen shot; at the preferred network type and the turn off volte flag... Yours may say turn on. I reboot after selecting the network and turning on the volte flag
Then in settings/more/cellular networks there should be enhanced 4g/LTE mode, turn that on of it isn't already
Click to expand...
Click to collapse
Hey I don't see your screenshot?
mine has done that on resurrection rom a couple of times. definitely check it and toggle airplane mode

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