Database Develop

3G / GMS

When I set my Diamond to Auto configuration it always chooses GSM with GPRS data, I believe its because the signal is stronger than 3G.. If I set the phone to 3G it works fine (almost always shows full signal strenght). But at my work I have no 3G signal, and I need to manually set the phone to "auto" och GSM again, and it wont change back to 3G when there is 3G in range again (even if I choose Auto).
So, my question is, is there any app or solution to ALWAYS be connected to 3G when there is enough signal, if not, it will choose GSM until it finds the 3G signal again?
Im getting quite irritated when I need to change the band manually several times a day...
Thanks..

Hello
I have diferent problem but i try to find some application to fast switch band from gsm to auto and auto to gsm
Thanks
Nicolas

mil_house said:
Hello
I have diferent problem but i try to find some application to fast switch band from gsm to auto and auto to gsm
Thanks
Nicolas
Click to expand...
Click to collapse
Advanced Config has an option to add a '3G' button to CommManager which does exactly what you want.
What I would really like however, is a 3G button that toggles between '3G' and 'GSM', rather than 'Auto' and 'GSM'
Anyone ?

3G connectivity problem after flashing radio 1.27.35.28 and ROM 5.2.1620

The device has been successfully HARDSPL-ed and flashed new radio and rom.
Everything works except the 3G connectivity. When i choose manually GSM/EDGE band the data connection works without a problem. If Auto mode or UMTS band is enabled the device connects to the 3G network but can not establish data connection. It tries several times to bring up the data connection but it fails and after several attempts it loses network registration leaving me wit icon that shows ! sign on top . The same thing happens with all operators here ( T-Mobile Montenegro, Telenor and MTEL Serbia )
Can anybody give me a clue what is wrong.

hi dcetkovic.. your problem is same with mine.. until now no one can solve this problem.. until i gave up unsubcribe my internet broadband 3g.. is useless without 3g

Also haPpens to me with the radio of origin. Anybody knows some solution for this problem?

Problem 3g frequent disconnectios
I had the same problem with the version 1.27. The solution was to change the radio to version 1.58.21.23. The radio, sometimes, is not compatible with the operator. Test it and good luck!

i have changed both OS and Radio ROM to factory versions and still have the problem. It looks like a hardware fault to me.

Hello,
I think you must test with others roms radio. Visit this link: http://forum.xda-developers.com/showthread.php?t=461359&highlight=radio
And good luck!

hdsdpa
dcetkovic said:
The device has been successfully HARDSPL-ed and flashed new radio and rom.
Everything works except the 3G connectivity. When i choose manually GSM/EDGE band the data connection works without a problem. If Auto mode or UMTS band is enabled the device connects to the 3G network but can not establish data connection. It tries several times to bring up the data connection but it fails and after several attempts it loses network registration leaving me wit icon that shows ! sign on top . The same thing happens with all operators here ( T-Mobile Montenegro, Telenor and MTEL Serbia )
Can anybody give me a clue what is wrong.
Click to expand...
Click to collapse
hi there, is there a program that could set manually the GSM/EDGE band? my current radio is 1.27, it seems that it doest want to choose the HSDPA only. There's HSDPA signal on my location, i have an HTC Advantage and it shows that its connected thru (H) however on my shift. it only shows (E) Edge.

[Q]Odd signal issue

Ok, so I know it's not the csc, or the rom, or the apn settings, or the modem, or the band selection. It's not an app, or even a signal issue. It's not the service or network selection. Wiping didn't help nor did a factory reset. Every time my phone connects to an edge network, it won't connect to an hsdpa network without me going into settings, wireless and network, mobile networks, wcdma only and then back to gsm and wcdma. Any suggestions?

Anyone that comes up with a half-way decent suggestion gets a Thank You....
I'm guessing that no one has come across this before? It's not like it won't connect to HSDPA, it's just that it won't connect automatically. Believe me when I say, I've searched samsunggalaxysforum, google, and xda for a solution so I don't think this is a problem that has been posted here as of yet. Forgive me if it is and lead me to it....

Bump.
I don't think enough people have seen it before it slips into the nether regions of the forum.

I changed HSDPA revision to option 2 in band selection (HSDPA/no HSUPA). It worked off of airplane mode, which it hadn't done before but the same issue persists. When I get to work (where there is a clear HSDPA signal) from home (also clear HSDPA) it's on EDGE. During travel or when the HSDPA signal is not available, it'll just stay on that **** EDGE network even when I get to an HSDPA area.

Same problem on a clean stock rom ???
jje

Come to think of it, I'm not sure. HSDPA is new where I live but not where I work. I did, however, do a repartition in Odin of the JS3 firmware and then a wipe with Darky's 9.2 and 9.3. Of course I didn't really stick with JS3 for very long before flashing to Darky's ROM but this isn't a problem inherent in the ROM itself or others would have reported it. Furthermore, I've switched between kernels, file systems and modems and yet the problem persists. I haven't enabled any tweaks with any kernel I've used either so that shouldn't be an issue, should it?

Maybe try this.
Dial *#*#4636#*#* ->
Go to Phone Information -> and perhaps play with the Preferred network type?
If noen of your efforts have resulted in anything meaningful, the suspicion goes to your operator.
Hope this helps.

i have the exact same issue although 3G is available in my area when it once logs into edge mode it doesnt wanna change it. only when i restart the phone it logs onto 3G again.
pretty annoying
maik

You can go into wireless and settings, network settings, wcdma only, and then back to wcdma and gsm and it'll connect to 3g or H. At least that way you don't have to restart the phone every time it does it. The main thing is finding out what can fix the issue.
For some reason, the phone information settings don't stick. I've tried to use wcdma preferred but it just goes right back. The other code settings, on the other hand, work just fine.
Sent from my GT-I9000 using XDA App

I'm wondering if it may be a sim card problem rather then a phone problem. I'm thinking I should try my girlfriend's sim. I'll report back when I see if that's the problem. It'll be after work though so feel free to come up with other suggestions. I plan to do a write up in general, [resolved] if we figure out the problem so people with this issue can know what to do.
Sent from my GT-I9000 using XDA App

Not the sim. I also contacted my service provider to get a push of their latest update with tower location, it's not prl on gsm it's id-something-something. No change there really as far as the signal issue goes. I also checked my provider website just to see how much data I had used, not even close to the cap on unlimited.
I think i'll have to try a flash on odin with repartition to a stock firmware and then work my way back to see what may have caused the problem. It's a shame, really since everything else on the phone works phenomenally, it just won't auto connect to hsdpa which is spotty in my home and work area so it's a bigger pain in the neck then it needs to be if it won't switch between the two on it's own.
Sent from my GT-I9000 using XDA App

[Q] Milestone is loosing signal - hardware or software error?

Yesterday my Milestone dropped the network and wrote "Only emergency calls". On other phones there was maximum signal. After a while the phone logged in to the network, but lost the signal again. I thought something is with the ROM, so I made a factory reset but didn't help. I flashed the correct SBF file (first Éclair, then Froyo), but didn't help. I restored an earlier MOD I used without any problem but didn't work.
I always used the German baseband files with other MODs because my Milestone is German.
The problem is that if I make anything (I mean anything related to the data connection), the GSM signal disappears, sometimes data connection remain with no problem, sometimes it is lost, too, but sometimes it has GSM signal with only EDGE network. If I do nothing, just turn off the screen and do nothing, everything goes back to normal, and the phone has normal data connection with GSM signal, I can make or receive phone calls.
I put in another SIM but the issue was the same.
Can I try something related to software and didn't try yet or this is a hardware failure? And if so, what is the price of a GSM module? I couldn't find it.
MOD: It seems that only the 3G is not working (sometimes HSPA does while 3G phone connection don't), with 2G there isn't any problem.

dial *#*#4636#*#*
Under phone info, try a different network type.
It probably defaults to GSM (auto). It does on mine anyway and it's fine.
But maybe WCDMA preferred, GSM only, or WCDMA only will work better.
It depends on which is screwing up... the WCDMA or the GSM
edit: had the dialpad code wrong... again.. geez

lordfreyr said:
Yesterday my Milestone dropped the network and wrote "Only emergency calls". On other phones there was maximum signal. After a while the phone logged in to the network, but lost the signal again. I thought something is with the ROM, so I made a factory reset but didn't help. I flashed the correct SBF file (first Éclair, then Froyo), but didn't help. I restored an earlier MOD I used without any problem but didn't work.
I always used the German baseband files with other MODs because my Milestone is German.
The problem is that if I make anything (I mean anything related to the data connection), the GSM signal disappears, sometimes data connection remain with no problem, sometimes it is lost, too, but sometimes it has GSM signal with only EDGE network. If I do nothing, just turn off the screen and do nothing, everything goes back to normal, and the phone has normal data connection with GSM signal, I can make or receive phone calls.
I put in another SIM but the issue was the same.
Can I try something related to software and didn't try yet or this is a hardware failure? And if so, what is the price of a GSM module? I couldn't find it.
MOD: It seems that only the 3G is not working (sometimes HSPA does while 3G phone connection don't), with 2G there isn't any problem.
Click to expand...
Click to collapse
Are you sure you have applied the correct baseband?
I would tell to re-apply thru AOR.
Sent from my Milestone using XDA Premium App

You could go to settings, wireless and networks and somewhere there there is use only 2g networks and if that is checked, you could try to uncheck it. That is what happened to me before on the froyo mod. Also, you could try turning on airplane mode, then turn it off. Good luck

I always used the German baseband, tried to switch 2G/3G many times, applied the baseband trough OR, applied the RTEU baseband, re-flashed the ROM, the original Éclair, the Froyo, again and again but nothing helped. I gave up I decided to go to the service. Before that on a forum somebody asked something, I gave an answer but I was not 100% sure about it, so I flashed the RTEU Froyo.
And it worked. The 3G, HSPA, 2G, EDGE, phone functions all are working now. My phone is truly German, it has QWERTZ keyboard and the original ROM was the ROM from Deutsche Vodafone (tried that one before, too), it has the logo on its box, and the German baseband files always worked. I don't know what just happened, it's simply working now. Why now... don't know.

[Q] Phone does not automatically switch mobile network mode

Hello,
My I9000 has a peculiar problem: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.)
This problem has first appeared rather spontaneously when it was running its stock 2.1 firmware and has persisted through upgrades to stock 2.3 and CyanogenMod 10 through 11. I've attempted to switch modem firmware to mitigate it to no avail. (Modems XXJVT and ZFJPG/BVJJPG were tried, no difference was noticed - I am rather wary of messing with modems further, as this is my only phone and I'd rather it still could call at the end of the day.)
Moreover, if network mode is switched to GPRS/EDGE manually, it can't be switched back to 3G (either manually or automatically) without a reboot. (The 'set preferred network type' field in *#*#4636#*#* starts resetting itself to 'Unknown' spontaneously at this point.)
Unfortunately, I don't know many details of the incident that caused the appearance of the problem, as I was not the owner of the phone at the time - I only know that it was roaming nationally (within the same country) at the time. (The network type should have been the same, and it's not like it's stuck in roaming in any way.)
Has anybody encountered such a problem before? Is this likely to be a hardware problem, or could there be a software fix?
Thank you in advance for your thoughts.

[Zaba] said:
: While both mobile internet and Wi-Fi work fine, switching to 2G when 3G/UMTS/HSDPA coverage is bad does not. It ends up losing network connectivity completely in areas where other phones have no problem staying connected by switching to GPRS/EDGE. (3G coverage is spotty here at times, so this matters quite a lot.) .
Click to expand...
Click to collapse
you need to try fiddling with its network settings (read this for info only) you can use service codes on i9000 to set your network settings . Sometimes it may be due to network settings not set to Auto and set to preferred and at other times it could be antenna connection inside the phone having poor contacts.
Check this out! Links to useful Guides and " Banned " Documentaries ​

Thank you for the hint. I have tried setting the "Select radio band" setting in *#*#4636#*#* > Phone information to European bands manually, and this appears to have mitigated the problem at least partly (phone has switched to 2G and back a few times during the day). I've noticed that it would sometimes just turn mobile data off despite having a good signal, not sure if this is related. It also sometimes seems to prefer another operator's 3G network to its own 2G ("emergency calls only", network mode is UMTS/HSDPA), but this is only guesswork since I have no way to actually confirm that the areas where this occurs have 2G coverage (it just seems really unlikely that they wouldn't). Maybe the fact preferred network type is "WCDMA preferred" factors into this.
TL;DR: Forcing radio bands seems to have helped, other radio weirdnesses remain but aren't nearly as bad.