Database Users

i-mate PPC GSM Band

Hey folks,
Is there a utility/hack that allows you to change the GSM band from 900/1800 to just search the 1900 band? Since upping to 1.72 my radio always locks onto the 900 band and stays there for ages before locking onto my operator (on the 1900 band). I have to have at least 80% signal level. I know that 900 generally is a stronger signal (the other operator is always at least 10-20% over my operator), so thats why [note: I cannot roam with the other operator].. I know the new iPaq seems to have a band select, and my Treo 600 does too....
HTC do you have a util?
Any help greatly appreciated.
Art

under my phone settings i can choose network and set pref network and all kind of stuff like that
HTC do you have a util?
Click to expand...
Click to collapse
i really doubt that HTC hang around this site you i think that
any questions you want to aim at HTC have to be mailed to them

Try this: go to phone, tools, options, network, network selection and put it in Manual, select your network and OK.
Tell us if it works well thus.
If it dont work, you can install old radio version.

Thanks folks for the replies.. That's actually how I have it set now (manual on my operator), but for some reason when you turn the radio on it locks on to the 900 band and just sits there.. If I walk around until a strong enough signal is obtained from my operator it'll lock on; but as you can imagine this is really annoying.
Thanks again for your pointers. If I find anything out I'll let you know, as I've also shot an e-mail to Carrier Devices; and will shoot something directly at HTC.
I may also drop down to Radio 1.10; but I hate having to re-install all my software again..

You can make backup, install old radio version and make restore.

Faulty MDA Pro on T-Mobile ???

I think i have a faulty unit because i can not connect to the internet at all (although it worked last sat morning when i got the unit but i did not try again until my number got ported)i have tried it on GSM only and checked all the settings over with the guy from T-Mobile and they are ok but if i put my sim in my Jam i get a connection with no problems.
The guy from T-Mobile says it may be beacuse i am on the fringe for UMTS reception but i get the U symbol and 4 bars on the strength meter but surely it should go on to GPRS if it can not get reception on UMTS as it would do for phone calls anyone any ideas ?

Start>Settings>Personal Tab>Phone>Band>"Select Network Type" and change to GSM (it's probably on Auto), then ok it all.
If you now connect over GPRS (which is what the above is to do - force it not to use UMTS at all), then you're ok.
Next thing is to go to a UMTS strong area, and do the settings but set back to Auto and see if u get 3G connection.
Hope it helps.

i just get the message ''warning:unable to change GSM/UMTS Band, please try again later''
thanks anyway

Switch between GPRS and UMTS network

Hello,
I know the place in the phone options (on the band page) where you can
change the network from GPRS to UMTS (3G).
But is this possible to do programmatically with RIL or TAPI or another API
on the pocket pc device?
Thanks for any suggestions.

I support this request; Many topics on the board cover erratic behaviour with JJ, and ppl return their device to no avail. Swopping to another operator often helps. The issues SEEMS to be a poor UMTS reception with a given SIM or location, and this results in JJ trying to connect to UMTS or even latching on to UMTS but with an abysmal signal. After more than 15mins (annecdotal) of this is fails to ever go back to GSM without a reboot.
Solution is to turn off UMTS, but that's darned inconvenient cos you OFTEN want 3G speed (mail, RSS, google/surf).
Here's a way forwards; can someone tell us what reg entry gets changed when we select GSM vs UMTS? I will then write a couple of .reg files that can be launched from iLauncher (or whatever). Buzz coule probably write a switching app like he did for BT.

i have the same problem
When i use my Universal at home, there is pretty low level of UMTS/WCDMA signal and full level of standard GSM signal. By default Universal changes between those two sources automaticaly. But in my case, the quality of WCDMA signal is often varying just around critical level. So the result is that Universal changes band to GSM and back. And then again. And again. And... Due this, there is sometimes not possible to make data connection, because Uni is so much occupied by changing bands back and forth...
I would like to find a better solution, than select only GSM manually in phone settings. Especially because i have to unselect it manually every time when leaving home :-(
Is there any way to set treshold value (i expect increase it) for automatic switching between WCDMA and GSM?

I still do not know how to switch from UMTS to GPRS and back
with some API function (or AT command) on the device.
If I get these Infos from someone that would be great.
Then I could write a tool that checks the signal quality
and the network status and if UMTS signal is too low
it will activate GPRS.
I think this can be done with RIL API but have not found
any infos.
Houser

Anything new aobut this umts switch problems??
I do have the same problems, often i am unable to make calls, always when umts is on...
would be happy to hear something,
thomas

craigiecraigie4 said:
I support this request; Many topics on the board cover erratic behaviour with JJ, and ppl return their device to no avail. Swopping to another operator often helps. The issues SEEMS to be a poor UMTS reception with a given SIM or location, and this results in JJ trying to connect to UMTS or even latching on to UMTS but with an abysmal signal. After more than 15mins (annecdotal) of this is fails to ever go back to GSM without a reboot.
Solution is to turn off UMTS, but that's darned inconvenient cos you OFTEN want 3G speed (mail, RSS, google/surf).
Here's a way forwards; can someone tell us what reg entry gets changed when we select GSM vs UMTS? I will then write a couple of .reg files that can be launched from iLauncher (or whatever). Buzz coule probably write a switching app like he did for BT.
Click to expand...
Click to collapse
HKLM\SOFTWARE\OEM\UMTS
OPMODE=0/1/2 (AUTO/GSM/UMTS)

HSPDA Confusion!

Hi everyone,
It's my first post here - most likely not to be my last. Oh, and i know i spelt HSDPA wrong in the title!
I very very recently (yesterday in fact) managed to get hold of my T-Mobile Hermes (one of the .37 batch) and am having no problems whatsoever with the phone, the only problem i am having is getting any web download speeds faster than around 40kbps?
I phoned T-Mobile yesterday and after being on hold twice and explaining myself many times i think i got HSDPA enabled as the lady (who was very nice) said she promises it has been enabled for me. I tried half hour later and sure enough, i used www.dslreports.com/mspeed and could now download at around 800kbps - perfect! Unfortunately i tried again this morning and it says 40kbps again
Is there any way to tell whether HSDPA has been enabled on my phone before i call T-Mobile again? Does HSDPA just run over 3G? I haven't got a brilliant signal where i am - usually 1 or 2 bars, could this be what is affecting my download speed? I need some help!

Just realised i have spelt HSDPA wrong in the thread title - never mind! Can anyone help?

Have you read this dude?
http://forum.xda-developers.com/showthread.php?t=276154&page=5
Theres a couple of files you can check you have i believe, also the Fit4cat program is worth downloading.

40kbps is GPRS data speed. Even without HSDPA you should get 300kbps on UMTS.
Your phone will show a U or a G depending on which network you are on.

It shows a "G" all the time in a little white block next to the signal bar, and sometimes the signal bar shows an antenna and sometimes a "G" also - does that mean when im on the "G" ill be on HSDPA and when im on the antenna (if i cant get 3G) ill be on GPRS 40kbps?
If so that makes a lot of sense as the signal is not brilliant round here, i went shopping in a much bigger town this afternoon and tested again -> full signal and downloading at around 1200kbps! Obviously it is enabled, think its just down to my signal....
Does that sound about right?

RTFM, the G is for GSM ie data will be GPRS.
You will either have a 3G or U depending on what ROM you're running for 3G/UMTS/HSDPA .

I'll be honest i only got half way through the quick start guide before i started playing with it. So, if my phone is always on "G" i'll assume i need to try and unlock it using the fit4cat thing? As T-Mobile have said they have enabled HSDPA on my account?
How did i get 1200kbps on GPRS by the way? It definately said "G" when i was connected and did the speed test...?!

I just ran the fit4cat Hermes tweaker and still no luck, it only connects to "G" rather than "3G", 3G is apparently available in this area so why does it only connect to G? Im confused and would really appreciate some advice...

Well if you probably didn't notice the U (or whatever) when you got 1mbps once it. This means that HSDPA is enabled on your phone and SIM.
The fit4cat tweaker only (dis)enables HSDPA but that isn't an issue because even without HSDPA you would be getting UMTS speeds.
One thing you could try is. Go to Start->Settings->Phone->Band set GSM/UTMS to GSM900+1800 + UMTS2100
You could also try a manual search for networks from Start->Settings->Phone->Networks->Find Network
Finally you can also disable GSM totaly using network type in the band selection and see if you get a steady 3G signal.

Thanks for your suggestions, here are my findings:
kevino said:
Well if you probably didn't notice the U (or whatever) when you got 1mbps once it. This means that HSDPA is enabled on your phone and SIM.
Click to expand...
Click to collapse
Good point, i have a long drive home tonight so will check when going through built up areas to see if it connects to 3G or U then.
kevino said:
One thing you could try is. Go to Start->Settings->Phone->Band set GSM/UTMS to GSM900+1800 + UMTS2100
Click to expand...
Click to collapse
Tried this, and phone disconnected then reconnected but still said "G" when connecting to Internet. Set back to "Auto".
kevino said:
You could also try a manual search for networks from Start->Settings->Phone->Networks->Find Network
Click to expand...
Click to collapse
Did this also, it pops up with the message "Registering on the network" and disappears and thats it, nothing happens.
kevino said:
Finally you can also disable GSM totaly using network type in the band selection and see if you get a steady 3G signal.
Click to expand...
Click to collapse
I cannot find an option to disable GSM in the Band tab, i have the following:
Select your network type.
__Auto
__GSM
Select your GSM/UMTS band.
__GSM(900+1800)+UMTS(2100)
__GSM(1900+850)+UMTS(1900+850)
and thats about it. Cannot find anything that would let me not use GSM whatsoever? I appreciate your help so far

It may be the case that your reception for 3G just isnt adequate enough to work where you live, O2 states there is reception in the area where i live but i only tend to get UMTS upstairs....just one of those things....here at uni i get FULL UMTS reception anywhere.

richieboy said:
I cannot find an option to disable GSM in the Band tab, i have the following:
Select your network type.
__Auto
__GSM
Click to expand...
Click to collapse
In the dopod ROM it has a WCDMA option too. No big deal !
Seting the band was just so that the phone doesn't bother looking for bands that are not available in this country. To try and encourage it to check the correct UMTS band more quickly.
My suggestion to use find network (you need to select manual search) in Networks wasn't too helpful anyway as it doesn't list the band. So no use unless you can disable GSM.
Of course you may have got a spurious speed test result. How old is your SIM? It needs to be a USIM

Yes firstly is your SIM card a USIM....or is it a SIM card from an old handset?? I think youve already said you have had the 'U' appear on your TyTN at some point.....so again im going with the assumption you just dont have adequate UMTS reception for it to work....hence why you are only seeing 'G'.

So, funny story...
It seems where i was over the weekend (girlfriends) is borderline, so as mentioned aboved i can get 3G upstairs but not downstairs - i decided to drive around and got 3G all over the place...the best news is i get 2/3 bars of 3G at home too!
Problem solved, im an idiot - but hey, it doesn't hurt to ask right?
680kbps! Woo

richieboy said:
So, funny story...
It seems where i was over the weekend (girlfriends) is borderline, so as mentioned aboved i can get 3G upstairs but not downstairs - i decided to drive around and got 3G all over the place...the best news is i get 2/3 bars of 3G at home too!
Problem solved, im an idiot - but hey, it doesn't hurt to ask right?
680kbps! Woo
Click to expand...
Click to collapse
girlfrends! Woo

Samsung Omnia i900: Auto mode doesn't switch to 3G when available

I have a Samsung Omnia i900 (XCHG5 updated to the latest J2 firmware - Portugal).
Everything works perfectly except that it doesn't switch automatically to 3G when 3G is available. It just stays in "Edge" mode all the time. If I select WCDMA in the Band selector, it will use 3G but not Edge, of course. The Auto mode seems to not work.
Here in Brazil I'm a subscriber of "Vivo" which uses the 2100MHz band for 3G.
What I tried:
*#1546792*#
and select WCDMA first in the Network order. It keeps the same behaviour. The Auto mode just chooses Edge, even when 3G is available.
Any hints? Has somebody experienced the same issues? Or does your Omnia switch between 3G and Edge without problems?
Thank you!

Well, this is really strange, but I installed Bandswitch:
http://www.smartphonemag.com/cms/blogs/3/tutorial_quickly_switch_between_3g_umts
and it doesn't work. Then I removed and restarted the mobile. For my surprise, now it's with the correct behaviour... First it tries 3G, then Edge... and switch as expected...
Whos knows if Bandswitch did something to Windows Mobile? I don't know... Anyway, I'd like to register it in case someone has the same problem.

SOLVED!
After many attempts, I finally solved this. If someone has the same problem, I'd like to register the solution:
1) type on the phone: *#197328640#
2) [1] Debug Screen
3) [8] Phone Control
4) [7] GCF Test Mode
5) [1] GCF Test Mode
5) [2] WCDMA R5 - HSDPA only
6) BACK and the option GCF Test Mode must be [ON].

I tried it for Rogers - still no 3G I guess it does not really switch bands, i.e. still tries to finds 3G on 2100, not 850/1900...
Anyone succeeded?

comer said:
I tried it for Rogers - still no 3G I guess it does not really switch bands, i.e. still tries to finds 3G on 2100, not 850/1900...
Anyone succeeded?
Click to expand...
Click to collapse
If your Omnia is from Europe, it will just work at 2100MHz, not 850MHz for 3G.
The american one will work only at 850MHz 3G.

Hello Dâniel Fraga,
I have the same issue with my Omnia. I also use Vivomad in Brazil.
I was trying your solution with *#197328640# to access the Root Menu. I don't know why but this code do not work for me. When I try I receive a message "Failed". Can be because the ROM I am using.
Do you know another way to access the Root Menu?
Thanks for the help.

is really useful for me

After some time I was able to access the menu that Daniel said, but the procedure did not work for me.

praico said:
After some time I was able to access the menu that Daniel said, but the procedure did not work for me.
Click to expand...
Click to collapse
Hi praico. Did you find the "GCF Test Mode" option? It must be turned to "on".

Dâniel Fraga said:
Hi praico. Did you find the "GCF Test Mode" option? It must be turned to "on".
Click to expand...
Click to collapse
Yes Daniel, I found that and it is turned on. It is really strange, sometimes it seems to work and sometimes not. I will test it more and I'll let you know.
Thanks for the help.....

Hello Daniel,
Can I make another question? Are you able to make a call when your omnia is in EDGE? Today I found out that mine does not work. Even with a very good EDGE signal my call never complete.
Thanks for the help.

After struggling all the weekend with this problem, I found a solution:
Cause:
Had a flashed ROM of the i900 (the phone part of this ROM seeks only 3G at 2100mhz)
Solution:
Flash the Phone part only, extracted from a i900L ROM (which works at 850/1900mhz)
Now I got my 3G signal back
This is the Phone.bin I used: http://www.megaupload.com/?d=ERQ6368K

would you be able to tell me how to ''Flash the Phone part only'' i'm a newbie
thank you in advance

Don't worry it's working now.
Thanks a million for the solution.

i have a same problemç my phone is toshiba g500 wm5.0ç please help . i select "auto" in mode selection(in 3g area) but i get Edge alltime..

Omnia in 850 Mhz band
I think my Omnia is only for 3G 2100 MHz and in my country we have 3G 850 MHz is there any way to make it work???

flash the phone
I have the same problem I have the phone only searching for 3G 2100 and I need it to look for 850, I downloaded the file mentioned, how do I flash ti as you mention???