Database Users

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.

HTC Surround 3G Switch missing

Hi, does anyone know why on earth did HTC disable the 3G Switch for HTC Surround?? I have this phone, updated to Mango and the 3G Switch is missing from the Network Settings. I cannot understand this stupid idea of not letting the user decide what band to use his phone on.

RE: Solved
I have solved this.
This is available for every HTC Device which does not have the 3G Switch available:
Enter the Field Test Menu by dialing ##3282#, on the lower right side there are three dots: ... , enter that menu and there you can choose the band to work on: Automatic, 2G only, 3G only.

Sounds like a solution, but each time I change the setting from 3G to 2G or Automatic, and then go back into settings, it reverts back to 3G only. And the 3G icon remains at the top of the screen. So is your experience different. Been trying to disable 3G since December.

jimski said:
Sounds like a solution, but each time I change the setting from 3G to 2G or Automatic, and then go back into settings, it reverts back to 3G only. And the 3G icon remains at the top of the screen. So is your experience different. Been trying to disable 3G since December.
Click to expand...
Click to collapse
Do not set to auto,
Set it only to 2G, go back in the field test main menu with the back arrow <-, and then again in the ... menu, 2g should be still selected, and then <- twice to exit.

mmuntean2 said:
Do not set to auto,
Set it only to 2G, go back in the field test main menu with the back arrow <-, and then again in the ... menu, 2g should be still selected, and then <- twice to exit.
Click to expand...
Click to collapse
Gave it another try, but not so sure.
Went in to menu, set to 2G and then back arrow <-. Went back in ... and 2G was still selected, but after exiting <- <-, and going back in, 3G is selected again. Also my phone still shows 3G at the top of the screen, but I will admit that the signal strength appears to maybe be 1 bar higher. So, am I on 2G although the 3G icon still shows?
Guess I will know tomorrow after a full day of use hopefully at 2G, with reduced battery drain. I have a great WiFi signal at home and at work, so basically 90% of my day. The only thing data does is load email in the background and the occasional need for a connection if I stop somewhere on the way home. My 3G signal is typically 1 to 3 bars, averaging 2. And almost never higher than 3.
I have an unlimited data plan, but my WiFi speeds are generally 3 to 4 times better, and my experience has show very little difference in battery drain with WiFi on/off. No idea why AT&T would prevent me from using 2G, especially with Unlimited. iPhone users should be thanking me for the extra bandwidth I am offering.
Btw, I will absolutely NOT purchase a new phone with 4G/LTE whatever, unless I can turn it off.

[Q] WCDMA/GSM auto mode prefers GSM

Hi all,
I use samsung devices for last 2-3 years and never seen such an issue. Network mode is set into WCDMA/GSM (auto connect), but the phone only downgrades from WCDMA to GSM, but not vice versa. So it stucks in edge mode with crappy network speed, the only way to force it back is to reboot the device or force WCDMA modem then it shows proper H+ icon and it works way better. But after some period of time when signal will go lower it will switch to 2g mode once again and never (or just with a huge delay, I waited for an hour) switched back to 3g.
Will appreciate any advices.

srezzz said:
Hi all,
I use samsung devices for last 2-3 years and never seen such an issue. Network mode is set into WCDMA/GSM (auto connect), but the phone only downgrades from WCDMA to GSM, but not vice versa. So it stucks in edge mode with crappy network speed, the only way to force it back is to reboot the device or force WCDMA modem then it shows proper H+ icon and it works way better. But after some period of time when signal will go lower it will switch to 2g mode once again and never (or just with a huge delay, I waited for an hour) switched back to 3g.
Will appreciate any advices.
Click to expand...
Click to collapse
Hello.
Sorry to reply to an old topic. I have the exact problem. I have a note 3 n9005 and when the network mode is WCDMA/GSM or LTE/WCDMA/GSM, my phone stays on GSM often. 3G signal is good in the area, and when I check my friends' phone, I see they are on 3G network but mine is on 2G.
When I choose WCDMA Only, phone registers on 3G network and works without any problem. But switching back to auto connect, cause the phone to register on 2G again.
Please help if you can.
Thanks in advance.

No 3g when coming from wifi

I have suffered from this problem for a while now. When I am on wifi at home or elsewhere and then go out of range and the phone should flip back to a 3g/4g signal all i get is an exclamation mark next to the signal bars. I then have to carry out a reboot to enable use of 3g
This happens about 80 percent of the time
Anyone else seen this?

I feel the same. I fix it with a tasker profile. When I lost wifi signal Airplane mode active for 5 seconds and then switches off. Since turning it on and off airplane mode reconnects the 3g.
Sorry for my english.

carlospi said:
I feel the same. I fix it with a tasker profile. When I lost wifi signal Airplane mode active for 5 seconds and then switches off. Since turning it on and off airplane mode reconnects the 3g.
Sorry for my english.
Click to expand...
Click to collapse
Thats good to know. I'll give that a go thankyou

Hi
I have had my Z1 for 2 weeks and am experiencing the same problem. My usage of the phone requires that I switch between WiFi and either of the 2 SIM cards for data on a very regular basis. The Mobile data connection does not activate when coming off WiFi and I am forced to mess around switching the phone off and on etc in order to reactivate the Mobile data.
a) Is there a quick work-around to overcome this issue ... & ...
b) Will the OTA CM13 udate in March overcome this?
Thanks for your time in shining any light on this problem.

I'm playing with tasker trying to create profiles for things without much success. Could you please give me some help on setting up the profile for this?
Thankyou

I have the same problem. I usuallt swithc from 3g to 2g and then to 3g again, and the signal comes immediately

Every one got that problem . Y can try other flyme 4.5.4.3 (eng only) or zui . Modem works perfectly (except hotspot+4g)

Fast Dormancy issue [SOLVED]

Hi guys. I'm from Brazil and I'm not sure about which carrier accepts or not fast dormancy here. What I know is that I had a note 2 before my Zenfone 2 and I had to switch fast dormancy off due to constantly network changes (3g, h, h+). This was just annoying and I wasn't able to navigate or send or receive messages until the connection was stabilised. After I switched fast dormancy off, my note 2 was able to stay connected at h+ (top speed as my note 2 was not LTE) all the time. Battery drain is not a concern since my phone was/is plugged most of the time. Now with my Zenfone 2 I'm getting the exactly same issues and:
1) do Zenfone 2 works with fast dormancy?
2) can I disable it?
3) how can I switch it off?
Remember guys, battery drain is not a concern.
I'm running on stock, but rooting is not a problem if needed.
Thanks in advance
Rafael

@BRRalf There are in general two types of fast dormancy. (1) phone controlled, and (2) network controlled. It seems from your experience that "network controlled fast dormancy" was not enabled when you were using note2. That could be due to the following reasons (1) the phone does not support "network controlled fast dormancy (NCFD)", or (2) the cellular network did not have NCFD feature enabled (not likely). Please bear in mind that IF your phone AND the network support NCFD (i.e. feature is enabled), then there is no setting on your phone which can change that (unless you root your phone and disable NCDF). Asus ZF2 surely supports NCFD, as well as the "phone controlled". Thus your ZF2 would likely shuffle between 3G <-> H (or H+), depending on your phones data activity.

Install 4g switcher on playstrore. And you can change only 3g only 4g etc etc

boombastic25 said:
@BRRalf There are in general two types of fast dormancy. (1) phone controlled, and (2) network controlled. It seems from your experience that "network controlled fast dormancy" was not enabled when you were using note2. That could be due to the following reasons (1) the phone does not support "network controlled fast dormancy (NCFD)", or (2) the cellular network did not have NCFD feature enabled (not likely). Please bear in mind that IF your phone AND the network support NCFD (i.e. feature is enabled), then there is no setting on your phone which can change that (unless you root your phone and disable NCDF). Asus ZF2 surely supports NCFD, as well as the "phone controlled". Thus your ZF2 would likely shuffle between 3G <-> H (or H+), depending on your phones data activity.
Click to expand...
Click to collapse
Hi there. Thanks for your reply.
Since I'm getting the same problem with my ZF2 as when I had my note2 with fast dormancy on, I really want to try to disable fast dormancy as I did with my note2. That solved the issues I was having and hopefully this will solve the issues I'm having now.
Imagine to get your phone to read some news...
You have to wait it shuffle from 3g to h+ or 4g and this take some seconds that I really don't want to spent. Sometimes, even on h+ I get no response from the carrier. Sometimes I have to switch data off / on to get data to work. This happens while I'm sending messages either. When the phone is idle, it can take up to 4 minutes to get a message into my phone
Any thoughts / guideline to perform this?
And, sorry about my English

Problem solved
Ok guys, after a few searches I found a way to switch FD off.
Just basics I guess.
1) root the phone
2) edit the build.prop file adding the line ro.ril.fast.dormancy.rule=0
3) restart
Done, everything looks the way it should now. Always connected, H+ or 4G. No more shuffle between 3G, H, H+ every second. Fast navigation and message exchange.