Database Users

How to enable Band Selection in Phone Settings?

Does anybody know which registry key to change or make in order to have a Band Tab under Phone Settings?

Band Selection Tab in Phone Settings on HTC Wizard?
Those that have the Band Tab in Phone Settings of WM PPC Phone, would you please do me this favor posting the registry details of this entry: : HKLM\SOFTWARE\OEM\PhoneSetting
My device has ShowTimeZonesPage and ShowPIN2Page only. I wonder if one has got something else. Still working on adding this Band Selection TAB.
Thank you in advance!

I would also appreciate this information. My 8525 keeps latching onto UMTS at a very low signal strength. I'd prefer to disable UMTS at times. Thanks,

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)

Data constipation? Irregular data movements? Constant disconnects?

Symptoms
- You cannot maintain a constant data connection. The connection is often lost or dropped.
- HD2 reception indicator dances between G to 3G to H despite showing good reception, and user remaining stationary.
Counter measures - No cabs or registry tweaks needed.
Presented in the order I would try them. If the lower number levels don't work, then move up a level. These are offerred as advice from a UK based HD2 user, though may work for you elsewhere.
LEVEL 1
- Go to Comm Manager > Wireless Controls
- Turn the Data connection Off then On again.
This will usually get you back and running again faster than waiting for the HD2 to sort itself out.
LEVEL 2
- Go to Settings > All Settings > Connections > Advanced Network
- Disable HSDPA/HSUPA
This will stop your phone attempting to use '3.5G' and will mean that you only use 3G.
Remember to re-enable HSDPA/HSUPA when you are in an area with better reception.
LEVEL 3
- Go to Settings > Wireless Controls > Phone - Change phone settings
- Move down to Other Options > Band - Change baseband
- Change Network Type from Auto to GSM
- Change Band frequency from Auto to either GSM (900+1800)+UMTS or GSM (1900+850) . To make the decision, you need to know the GSM frequency your operator uses. If you don't know, you can just try both of the GSM options and see which works. No damage will be done by using the wrong frequency first time, and you can change back.
This will disable 3G and force your phone to use 2G. Most operators have decent 2G networks, so you shouldn't have the disconnects anymore, but you will have slower than 3G potential speeds.
Remember to change your phone back to Auto for both Network Type and Band Frequency when you are in an area with better reception.

Thanks for the heads up... will have to try some of these. I find it most annoying at times...!

Thanks for the advice, I do find those issues annoying. What are the benefits of using 3.5G? If they're aren't any major advantages and turning this off helps then I may as well leave it off.

CHIP STAXMAN said:
LEVEL 1
- Go to Comm Manager > Wireless Controls
- Turn the Data connection Off then On again.
Click to expand...
Click to collapse
The problem with this is that it b*llockses up your push email settings, if you use the phone to get email from an Exchange server. The better approach (assuming standard configuration) is to press and hold the power/end-call hard-button. That brings up a menu of four choices. The last of those is "terminate data connection". Click it. Anything the phone does which requires the data connection after that will automatically reactivate it.

3G 2100
These tricks may solve the issue for many but not for me because I'm in a 3G 2100 only network so I cannot switch to GSM. I will try to disable HSDPA/HSUPA to see if that works though.
The weird thing is that the issue occurs almost exclusively when I'm logged on an IM client and the phone stays in sleep mode a few minutes (say 15 min or so). After I wake up the phone the signal seems ok but the data connection is lost (IM, browsing, mail, weather update, etc.). It doesn't happen every time but very often, several times a day.
If I don't log on any instant messenger app the data connection is stable, especially with the new 1.66 ROM (I tried both Duttty's custom and official). In this case I lose data connection very rarely, in fact I din't even remember the last time I did.
Can anybody provide an explanation for this, what is happening with the connection between the IM server and the phone during sleep?

snerkler said:
Thanks for the advice, I do find those issues annoying. What are the benefits of using 3.5G? If they're aren't any major advantages and turning this off helps then I may as well leave it off.
Click to expand...
Click to collapse
If your network supports it, you should have higher potential data upload and download speeds through using 3.5G (HSDPA/HSUPA).
In reality and every day use, on many networks you probably wouldn't notice the difference between 3G and 3.5G.
I'm on Virgin Mobile, which piggybacks on T-Mobile's network here in the UK. My speedtests in central London, show virtually no difference between me using 2G, 3G and 3.5G!!!! Which is ridiculous. The main difference I get as a HD2 user is much more stable data connection on 2G vs 3G/3.5G.

[REQUEST] Support for 2g/3g Sidekick switch

Can someone build support for the 2g/3g switching that uses the same method as the settings panel (Sidekick method) instead of APN or RIL injection?
[UPDATE] It does work with Sidekick but not with AOSP helper
2G/3G: What is the difference between the RIL injection and the Sidekick method ?
RIL injection is as hackery as hacks come, and is currently only available for GSM devices. It completely circumvents most of Android and tries to force commands to be sent to the radio.
Sidekick on the other hand will use the same method as the device's settings screen to trigger a band switch, and is therefor both safer and faster to use. It does unfortunately require a compatible ROM. Carrier / manufaturer ROMs are usually not compatible, and not all custom ROMs are compatible either. Sidekick is available both on GSM as well as CDMA devices.
If your ROM is Sidekick compatible, Sidekick will always be used instead of RIL injection.

What is your objective? To tell it to go 3G only or 2G only?
Dialer *#*#4636#*#* --> Phone information --> set preferred network type: [WCDMA only = 3G][GSM only = 2G]

I want to enable applications like SuperPower or JuiceDefender to conditionally toggle 2g and 3g data.

I use extended controls and have a 2G/(3/4G) toggle, but it only brings me into a menu where I can select to turn on/off 2G network operators. That works if I want to manually turn it off, but being able to have a program activate it would be great, I'd like to set profiles where it turns to 2g when my work day starts, off during lunch break, and and off when I go to sleep, without having to do anything else.

Power Saving mode problem - carrier network drops

Hi,
I am using a fairly stock ROM on my S5 that has been rooted and debloated. The phone was Verizon branded, but I am using it on T-Mobile. I like 4.4.4 as my system, and have safestrap installed.
In order to get full band functionality I had to enter service mode and select LTE/GSM/WCDMA instead of CDMA preferred.
I also edited the build.prop to ensure LTE preferred and GSM mode enabled after reboots.
My problem is that if I enable Power Saving on the phone and it goes to sleep after a minute the network completely drops and I cannot reconnect to T-Mobile network. Additionally the phone seems to reset itself to CDMA preferred.
I have to turn off the phone for a few minutes then boot and now my network is restored.
The easy answer is that simply never use power saving - and why bother when I get great battery life anyway.
However - it begs the question - why would power saving kill network carrier connection? Is the antenna powered down?
If so - where else do I need to modify settings to stop the phone from returning to CDMA?
Lastly - why is it so difficult to configure a new phone like the S5 to jump carriers ? the phone is global in its band support and fully capable - but carrier branding renders this useless. Shouldn't custom ROMs be more universal in their nature and exclude carrier locks- or at least enable menus for users to select the carrier they prefer to use?