Database Develop

3G not working

I'm having major trouble with my phone and need some help.
I've got a standard Vario III no flashed roms etc..
When I'm on standard GPRS network the phone works fine, calls internet etc..
However whenever it switches to a 3G or H network I cant make or receive calls or use the internet. The funny thing is that when it tries to access the internet it looks like it connects but when you click on the 3G (with the arrows) it says there are no sessions active.
Help!!

yes.. i have the same problem too
so we must switch the band using gsm to get phone works normally. if we set AUTO it will failed to make call or to receive call.
another kaiser from my friend was normally in same area. please help us.. thanks

maybe I have the same problem, I can't make calls, when I make a call it do a sound alert and end the communication.
The line is ok, I was using it with other phone without problems. I spend today 5 hours with the mobile service provider (CLARO ARGENTINA) tech service and they finally say this must be a problem with the pda, not with the service (after testing all possible alternatives)
The phone is almost new! I can connect to EDGE and navigate the internet, H or 3G appear "some times" but it get EDGE 99% of the time.
When somebody call me the phone ring and then then lost connection. When people call me they receive a "network error".
1 of 20 times I CAN do a call.
Do you think is the phone? or there is some update ? I'm downloading a 6.1 rom to test with it.

it is not the phone. Assuming your are using T-Mobile, Edge network coverage is almost 100% complete, while T-Mobile's 3G network is in the early stages. So you will usually get Edge until 3G is nearing completion - T-Mobile is slow
Here is an article: http://www.boygeniusreport.com/2008/05/05/t-mobiles-3g-rollout/

Well I use Claro AR (in Argentina). EDGE is 100% and 3G is quite well in my city, but what do you think about my phone calls are closed after 5/6 seconds with error and then it lose phone coverage. Never happened with other phone, same provider, same line, other phone.
Now I have updated to a duttys Rom with a newer radio version (1.65.x, my phone comes with 1.21.x) and still happening. Now I will test another rom

It IS the phone.
If you do a search on this board lots of people are having that problem, as I found when encountering it myself. It's a hardware fault in the radio part, that requires sending the device back to HTC. They actually replace the whole mainboard to cure it, so it's a serious issue.
Awaiting to receive mine back, it's been there for a month now
Here's a large thread about it: http://forum.xda-developers.com/showthread.php?t=335074

thank you
I force the phone to run under GSM network (not WCDMA) and the phone works perfect, internet too (only EDGE). But I can't use 3G because if I set it to WCDMA or AUTO in the phone network section, it's unusable.

That's the one. I'm receiving my Kaiser back from repair tomorrow, can't wait, and hope it will be fine this time... It's been at the service center for 6 weeks now

hello, any news ?

Yep, received it back like 3 weeks ago, everything works flawlessly. They replaced the whole mainboard just like for the other people with the same issue.

Ok I'm dead. Sending the devide to north america from Argentina? now way.

Why? I had to send it to the UK, not much of a problem...

and it back again to you? awesome!! not easy in latin america!
Ok I will call tomorrow the seller to ask the guarantee. let's see what happen.

(Poll) What's your opinion on 3g?

As far as making and receiving phone calls, do you use 3g? Any phone I've ever seen that uses 3g absolutely sucks. My dad's phone, my mom's phone, my girlfriend's phone, my phone. What happens is the call either doesn't go through. If you listen to the dial tone it has a small click right before each tone, if I hear that, it mean's the call isn't going through.
My mom and girlfriend have gone through replacements on their phone, but the 3g still sucks. I've even noticed they don't get that great of reception.
Even on my Tilt, if I switch to 3G i only have 2 bars and apparently people have complained of calling me but I never received the call. Now with Edge, I have full bars, and no one ever complains about the call not going through.
So what's your guy's take on 3g?

Similar to what you've experienced. I generally leave mine turned off the majority of the time, since I have the WiFi running when I'm at home anyway. I turn it on only when I need to browse the web or something when I'm out and about.
Not to mention the immense battery drain that 3G demands. My battery life is dramatically better on Edge as opposed to 3G.

Your provider needs to update/fix their network. This is not a device issue, it's a network issue. Proper 3G (well, 3.5G / HSPA, not just UMTS per se) should also use less power than GSM / EDGE for transfers... (in watt/kbps, though)
I know for a fact that all devices in my signature (that support 3G) can work perfectly with 3G on a proper network.

Chainfire said:
Your provider needs to update/fix their network. This is not a device issue, it's a network issue. Proper 3G (well, 3.5G / HSPA, not just UMTS per se) should also use less power than GSM / EDGE for transfers... (in watt/kbps, though)
I know for a fact that all devices in my signature (that support 3G), plus the Touch HD, Omnia and i780 can work perfectly with 3G on a proper network.
Click to expand...
Click to collapse
I don't experience network issues as bad as the OP seems to have, but I've always had terrible battery life on my Tilt and my iPhone, my two most recent 3G devices. My 8525 was actually very good on the battery with 3G running all day long, never had a problem getting through the day.
Maybe the intermittent GPS usage on the latter two? I don't know.

Chainfire said:
Your provider needs to update/fix their network. This is not a device issue, it's a network issue. Proper 3G (well, 3.5G / HSPA, not just UMTS per se) should also use less power than GSM / EDGE for transfers... (in watt/kbps, though)
I know for a fact that all devices in my signature (that support 3G) can work perfectly with 3G on a proper network.
Click to expand...
Click to collapse
I should go in and ask them about it, just to see what they say. Ask them why the new and greatest 3g is worse than edge. I have AT&T, I live in Washington, and I live right by a Cell tower too (only a 2 or 3 blocks away from it).

I woudln't mind using it for data but the fees here are prohibitive for private use. We use it on our work phones for data and it works well on Telstra.

mikeeey said:
I should go in and ask them about it, just to see what they say. Ask them why the new and greatest 3g is worse than edge. I have AT&T, I live in Washington, and I live right by a Cell tower too (only a 2 or 3 blocks away from it).
Click to expand...
Click to collapse
They'll probably say it ain't so Thing is, when 3G first got rolled out here, we had much the same issues. The big providers here spent some $$$ to replace "faulty" hardware at the towers, and voila, the problem disappeared (2 years ago?). Seems many 3G networks around the world have similar issues to the ones you described in the opening post. I have a sneaking suspicion that one of the 3G cell-tower hardware manufacturers - probably the cheapest and hence most used - makes some really crappy equipment. I could almost imagine that manufacturer is Qualcomm
In all seriousness though, all I know for sure is we had these issues here too, and they fixed them by fixing the towers. (Though of course there is some difference between different devices and how well they do 3G)

From talking to some guys at work Telstra's 3G network has been pretty much flawless for them asides from cost issues associated with Telstra.

I live in indonesia and never have any problem with 3G,. , the only problem is, its expensive,. lol,.

I am in NZ
No problems with 3G whatsoever. Have Imate JasJar - loving every second of it.

New Jersey, USA
3G has always seem pretty good around here in New Jersey with AT&T, but I'm 25 minutes from New York, so imagine how many towers they have on the tri-state area (New York, New Jersey and Connecticut). Very rare to lose 3G reception (exept on the iPhone 3G that everybody complains about losing it often). But important to mention also is that Kearny, town where my sister lives, I lose reception a 100%, my phone's reception just dies, and when I switch it to GSM instead of 3G...voila. Full signal strenght.

wow.. the results turned out quite different than I imagined.
Obviously it's just in my area that 3G sucks. I really wish they would fix this, considering that every phone released now is 3G...and you think someone would notice... well, I'm sure if I wait long enough people will start to notice, but who knows,

I can't remember the last time I had problems with 3G. though I remember before Cingular got bought by AT&T and they were just rolling out there 3G, I used to have problems then, I guess it was due to them configuring/re-configuring the towers. I think the engineers were just going by what the manual said, which weren't the best settings for each area.
I'm on 3G all day everyday on the hour and it's good. even when I'm in the basement and have 1 bar I still receive all my calls and I can make calls. though on this 1 bar I sometimes have to repeat myself every 1.5 minute, but I don't complain about that because it's 1 bar and I'm in the basement. at my friend's apartment I'm the only one that get signal, nothing else work there, not T-Mobile, not sprint, not verizon, not alltel, not vergin nothing else only AT&T works and I get 3 bars of 3G there. I always laugh because he has to leave his phone by the window and use his blue tooth.
I honestly don't think you're by a 3G tower because you should be getting way more than 3 bars. also ask them about the issue you're having AT&T is a good company they will listen to you. call them and open a ticket (before this they will have you go through the basic steps, restarting by removing the battery, etc) tell them you've done that multiple times and yet you have the same issue so it must be a network issue. have them escalate the ticket (they will send an engineer out and he/she will call you, they will work on the towers around your area). don't forget to be polite, no one likes a hot head.
in roughly mid year last year I was only getting edge at my job even though it is a 3G area. at home inside my house had full bars, so I called them up and they worked with me. the engineer stayed in my area roughly 2 weeks to deal with the issue. after that I've had 2 bars of 3G in doors at my job.

Missed Calls going straight to voice mail. No Voicemail notification.

There are 2 existing threads from last year for a different device about calls going directly to voicemail without the phone ringing even when the phone has good signal indicator and has not been moved. They seem to have gone cold but the issue persists or has returned for some of us. I've gotten in deep with AT&T and Motorola chasing a solution to recent occurrences of this on my AT&T Atrix HD. The next post here is a consolidation of my posts from those defunct threads and a whole lot of information resulting from contact with AT&T and Motorola, who may be viewing this thread.
I suspect that there are many possible causes for these symptoms and that my circumstance is quite localized however, if anyone else is experiencing this, particularly on the Atrix HD and AT&T please do post some details of the problem, as well the provider, model of phone and OS version.Thanks. ITM

On a new Motorola Atrix HD, in a well serviced area, with a full signal strength indicator and the phone having not been moved:
After a period of time (could be 30 minutes to several hours) although the phone shows full bars and a 4G connection, when a call is dialed from the phone it behaves as if it is not on any network and it re-initializes its phone network connection, going through the various icons and network types (no service, emergency calls, 4G ) until it gets to 4G and then the call goes out. While the phone is in that limbo state with full bars and 4G LTE icon it is receiving wireless waves (this is proven) but is not being given the proper command to switch to phone answering mode when a call comes in so the calls go straight to voice-mail and no alerts for missed calls or voice mails are sent to the phone... until the process of making an outgoing call from the phone forces it to re-find the network. Toggling data plan or airplane mode on/off also resets the phone network connection. Then incoming calls and voice mail alerts come through until the next instance. It is also possible that the phone is indeed on the network when the problem is in evidence and that some failure in the network signal or OS on the phone prevents it from changing state to answer the call. This has been happening several times a day for 3 weeks.
ATTEMPTED REMEDIES
- Data refresh (short of factory reset)
- Factory reset
- New sim
IN PROGRESS REMEDIES
- AT&T has forwarded this to engineers who will supposedly look deeper into the relationship between my phone and their service, and I hope, at particular slices in time where the incidents have occurred (I'm keeping a log of the incidents).
PLANNED REMEDIES
- Replacement phone. I will test the new phone before applying any available OS updates or installing apps.
ELIMINATED POTENTIAL SOLE CAUSES
- Disabling of certain native apps. Problem occurs regardless of which apps I have disabled and occurs with all native apps enabled.
- Phone being moved in and out of range. Problem has occurred and testing has been done at one location.
- Service outage at all towers within range. No significant degradation of service during problem incidents.
- Deep sleep mode. Phone goes into deep sleep mode properly and receives calls while in deep sleep mode when the problem is not in evidence.
- A particular app that can force phone to use 4G without LTE has been eliminated as potential cause, as the problem started before that app was ever put on phone and persisted for a week after factory reset and rebuild that did not include that app.
- Duration of idle time. The problem has been detected anywhere from 25 minutes to many hours after the phone was last used.
- Developer Mode USB Debugging. Problem occurs regardless of this setting.
Getting more granular:
For those having this issue on an AT&T 4G LTE phone this may be significant in determining the exact moment that the phone is failing to do something it should, which in turn may help get to the root cause of the problem.
- With data plan off and background data disabled the phone shows a greyed-out 4G LTE data network indicator without radio wave graphic elements. With data plan on it shows the same indicator not greyed-out and with radio wave elements.
- Under normal operation; When a call is placed to the phone (in this case from a land line), well before the ring is heard on the mobile phone and sometimes even before the ring is heard on the calling land line, the LTE part of the indicator turns off and then the call comes through. (The LTE indicator is also turned off when an outgoing a call placed from the mobile phone)
- Some moments after the call is ended the signal bars drop to zero very briefly then the LTE indicator reappears and the bars go back up.
- When the problem of missed calls/vms is in evidence the LTE part of indicator never goes off when a call is incoming and nothing short of manually toggling the network state of the phone seems to set it right
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ADDITION 3/12/13 relating to “Modem Fastdormancy Monitor Service”
- Under normal operation, when a call is placed to or from the mobile phone a process named “Modem Fastdormancy Monitor Service” is invoked. This process seems responsible for toggling the LTE component off during the call and back on when the call is complete, after which the “Modem Fastdormancy Monitor Service” closes its self.
- When the problem is in evidence the “Modem Fastdormancy Monitor Service” is never invoked, the LTE indicator never disappears and phone calls go straight to voice mail even though the phone is, in a technical sense, receiving wireless waves.
- When the phone is forced to use only 4G (instead of 4G LTE) the “Modem Fastdormancy Monitor Service” runs continuously and the problem does not occur. The app that allows this test to be performed has been eliminated as a possible cause.
So... it is at the point during an incoming call when the “Modem Fastdormancy Monitor Service” is supposed to be invoked but is not being invoked that the phone or network is failing to do something. Determining exactly what event invokes the “Modem Fastdormancy Monitor Service” may isolate the failure point and get to a solution.
Here is some hard tech detail about the “Modem Fastdormancy Monitor Service” found by a helpful Motorola tech.
http://www.faqs.org/patents/app/20120124196
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I’m curious to know if others are experiencing this.
Stock ROM, No Root, some reasonable apps installed
Model: Motorola Atrix HD MB886
System Version: 98.4.20.MB886.ATT.en.US
Baseband Version: MB886_BP_100740.071.65.04P
Kernel Version: [email protected] #1
Android Version: 4.1.1
State: NY

The snake eats its own tail
So...... the underlying issue is a problem with software in the Lucent switches that are part of the toggle mechanism that allows 4G LTE phones to use 4G LTE for data and 3G (although the phone indicator says 4G) for phone calls. This issue goes under-reported because it is less likely to occur when data is on all the time or the phone is traveling. As mentioned earlier in the thread it does not occur when the phone is forced to use 4G for data instead of 4G LTE.
Even though I am somewhat of an AT&T loyalist I was shocked at how poorly they handled this and at the amount of money they must be spending on chasing it while at another part of the company they knew exactly what the problem was.
At their supposedly highest level of escalation an AT&T representative could say was that another tower would be installed in my area within a few weeks. This was a preposterous non-starter of a notion precluded by weeks of troubleshooting by both me and AT&T, and even the AT&T representative who uttered it admitted as much before trying to blame the problem on the phone and trying to convince me to use a microcell. In that same phone call I was forwarded to a supervisor who described the issue with the Lucent switches and said an impending software update should fix it.
Good golly!
I can understand why providers make the mistake of over-committing to the new technology (as was done in the early 3G days) but this has been an unnecessarily grueling odyssey. Anyhooo, If anyone else is having this problem I recommend trying to force your phone to use 4G (without LTE) WCDMA, HSDPA.

Solution: Get out of AT&T contract and unlock phone to T-Mobile. Ironically, the WCDMA setting I used to work around this turned out to be a great battery saver and I still use it.

When I had an atrixhd I used to have this fail and never could do nothing because never found any type of solution or information , the only "solution" was set to 3G , because in 2G almost all calls to my phone were denied whithout advice, I ended up receiving a message for a miss call and it was with movistar México.
Sent from my DROID RAZR HD using XDA Free mobile app

Frequent Random Network Drops

I've seen a number of threads where people post about their device dropping network data connectivity, and needing a reboot to solve it.
My issue is a bit different. Occasionally (I've noticed it 3-4 times today) when I go to send a text (SMS) or to use a data enabled service like Hangouts, that my phone shows no bars at all.. not even just no data, but the bars are grey and there's a red x. I wait about 15 seconds and it reconnects, then another 10 seconds later, the data is live again.
Phone is a private sale and under 1 month old, and all the Stamina functions are off.. I do see that the "Queue background Data" is turned on, but I don't think this should effect, no?
Not sure what digits I should be looking at to know if this might be a hardware vs software issue.. build is listed as .93
Im no stranger to unlocking and flashing, but I've kept this stock cuz it's tight and I adore the battery life.
Suggestions?

sh0nuff said:
I've seen a number of threads where people post about their device dropping network data connectivity, and needing a reboot to solve it.
My issue is a bit different. Occasionally (I've noticed it 3-4 times today) when I go to send a text (SMS) or to use a data enabled service like Hangouts, that my phone shows no bars at all.. not even just no data, but the bars are grey and there's a red x. I wait about 15 seconds and it reconnects, then another 10 seconds later, the data is live again.
Phone is a private sale and under 1 month old, and all the Stamina functions are off.. I do see that the "Queue background Data" is turned on, but I don't think this should effect, no?
Not sure what digits I should be looking at to know if this might be a hardware vs software issue.. build is listed as .93
Im no stranger to unlocking and flashing, but I've kept this stock cuz it's tight and I adore the battery life.
Suggestions?
Click to expand...
Click to collapse
check in settings in network and set your network to the one you use , like gm/wcdma /lte , maybe your phone is strugling to find 3g or 4g , try it , who knows it might solve the issue , ty

Been about a month since I posted, and I'm still experiencing this issue. I often thumb my phone on and it's not connected. I don't really mind waiting for the 30 seconds or so that it takes to jump back on the network, but it often means I miss calls, and since it's my business phone, it kinda bums me out to suddenly get a VM notification of a missed call even though it never rang.
Is there some sort of utility that I can use to monitor the network activity to see how frequently it drops, and for how long? I've looked into ones on Play but they don't seem to have a history, just something that shows what data up and down is currently being reported.
Sadly the only Sony store in my city (and I think the country - Canada) has recently closed for good, so I'm not sure how to go about warranty repairs...

sh0nuff said:
Been about a month since I posted, and I'm still experiencing this issue. I often thumb my phone on and it's not connected. I don't really mind waiting for the 30 seconds or so that it takes to jump back on the network, but it often means I miss calls, and since it's my business phone, it kinda bums me out to suddenly get a VM notification of a missed call even though it never rang.
Click to expand...
Click to collapse
I don't have a solution, but I can tell you that you're not alone. I've been experienced the same thing on my Z3C. I sometimes wonder if it has anything to do with the fact that the MVNO I use doesn't support 4G LTE.

kopsis said:
I don't have a solution, but I can tell you that you're not alone. I've been experienced the same thing on my Z3C. I sometimes wonder if it has anything to do with the fact that the MVNO I use doesn't support 4G LTE.
Click to expand...
Click to collapse
Interesting.. Your issue isn't just data, but a complete network disconnection? Im with Fido which is an MVNO under Rogers, but I thought they supported LTE. The issue also persists even on wifi

sh0nuff said:
Interesting.. Your issue isn't just data, but a complete network disconnection? Im with Fido which is an MVNO under Rogers, but I thought they supported LTE. The issue also persists even on wifi
Click to expand...
Click to collapse
Yes, it seems to be a complete loss of the mobile connection. When I wake the phone I see gray bars and a red X on the signal strength indicator. Within seconds the phone re-acquires and the indicator goes to 2 or 3 bars. I have also seen it happen with wifi active. The frustrating part is that it doesn't seem to do it often enough to troubleshoot. I'll notice the problem maybe a couple of times a month and there's nothing obviously different about my usage patterns in those instances.

Mine does it at least a dozen times a day. I can only assume this as I frequently miss calls and at least 3-4 times a day I see it happen. =(

Same Problem
Randomly I have no connection at all but after a few seconds everything wents back to normal. Did not have this problem with T-mobile in Germany but with with O2 I have. With T-mobile I had LTE but with O2 I don't, so I guess that's the reason.

Interesting... I've disabled LTE and now have it on 3g/GSM. We'll see how it works moving forward, and I'll post again in a week. Stay tuned.

Service Providers
In the mobile network settings one can change the service provider manually. With LTE enabled my provider has three entries: LTE, 3G and 2G. Connecting two LTE fails, because my provider blocked it in my plan. Having LTE enabled, it often tries to connect to LTE I assume. I switched off LTE and set the provider manually to 3G. Maybe that helps. We'll see.

realTobbse said:
In the mobile network settings one can change the service provider manually. With LTE enabled my provider has three entries: LTE, 3G and 2G. Connecting two LTE fails, because my provider blocked it in my plan. Having LTE enabled, it often tries to connect to LTE I assume. I switched off LTE and set the provider manually to 3G. Maybe that helps. We'll see.
Click to expand...
Click to collapse
Interesting.. I have LTE as part of my network and plan... But once I made changes to the settings as I indicated, I no longer receive the network drops I originally experienced.. I might just be missing the alerts, but it seems fixed... #crossedfingers

US T-Mobile, random calls go straight to voicemail.

I am getting calls that go straight to voicemail. This does not happen all the time, but when it does there is no call log, just a voicemail notification. Searching the web and support calls to T-Mobile seems to indicate that it is because the Mate 20 Lite does not support VoLTE, even though the phone has the band support. When a call comes in, T-Mobile will try and drop the call from LTE to 2G/3G, fail and then send the call straight to VM. Cannot find a solution and it seems there are many people having this issue across many different brands of unlocked phones on the T-Mobile network.
Here is the odd part and why I think it might be the phone. I am getting insane battery life on the Mate 20 Lite. I charged the phone to 100%last night, went to bed and 8 hours later it was still at 100%. Last night I missed an important call that went straight to VM. No forwarders, call blocks, airplane mode etc. I also noticed that these straight to VM calls happen when the phone has been sitting/immobile for a while. Like the aggressive battery management is killing some service. This does not happen with a Xiaomi A2 that my wife is using.
BTW, I am connecting to band LTE band 4 and get near 40Mbps down when testing, so I assume I am getting 4G LTE.
The phone is still within the return window and if I cannot solve this, I have to send it back.
Anyone have a solution?

No solution. I have a similar problem where I live there is nearly no cellular reception and the only way to get calls is to be connected to WiFi which activates VoLTE / Voice over WIFI. Huawei Mate 20 Lite does not do it though. Why not?