Hi all, I'm wanting to know if anyone else seems to be experiencing an issue where during a call the signal icon will change from H to G and the quality of reception / voice also drops to what resembles a non-3G phone.
This seems to happen quite often regardless if the call is inbound or outbound. I can be sitting at my desk and have what appears to be full reception with the H icon, then 2-3 minutes into a call (still sitting at my desk) the icon will change to G and from the quality degradation it must be reducing to 2G... why is this? I could understand if I was walking around but it happens regardless and will never go back up to H during a call only once the call has ended... is this a limitation of the cell network/carrier?
I'm using Dutty's v4, radio 1.09.25.23, Olinex 1.93 hardspl. Network carrier is Optus and I'm located right in the middle of the city - Melbourne, Australia.
I'm wanting to try some of the newer Raphel radios but need to get Security Unlocked first - already PM'd Olipro... just waitin
Any comments ?
Hi,
Same problem to me... downtown of the fifth biggest city in France...
Don't worry if I may say so: the phone is the problem. it has crappy reception, probably the crappiest of all time... I have tried any possible Radio ROM available, none of them changed a signle thing...
Worst HTC phone ever made for reception... All my friends with way cheaper phones have at least four to five bars when they are at my place, I don't get that... but all my other phones do.
Eve worse: the phone totally disconnects from network when I have one or two bars of H or 3G... I receive NO phone call, no SMS and I am notified two days later (30 voice msgs, fifty SMS... all sent two days ago). I even had issues at work becaus eof all this, people complained they couldn't reach me for hours and days...
I now have to set it back to G alone (switch off H or 3G that I want to use all the time...), which is a shame for such an advanced device...
Correct me if I'm wrong, but you're not supposed to get a H during calls, maybe for video calls, I'm not sure. But for regular 3G calls, you shouldn't get a H, H should only appear when there is data transfer, like when using Internet for example.
vale|46 said:
Correct me if I'm wrong, but you're not supposed to get a H during calls, maybe for video calls, I'm not sure. But for regular 3G calls, you shouldn't get a H, H should only appear when there is data transfer, like when using Internet for example.
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Click to collapse
I'm not really qualified to comment except from my own experience... My phone always has the H symbol, when there is no data activity then the H symble is faded/semi transparent and becomes solid as soon as I make a call or transfer data (eg. updating weather) and I never have the 3G icon - always H or G. I belive this may be related to the operator and the frequencies they use for both HSDxA and 2G modes.
Probably for about 80% of my calls I'll keep the H symbol, but when it drops to G it's really annoying as the quality turns to sh*t
My phone never seems to be able to hold a signal.
I'm on the 3 network in Australia & my phone doesn't stick to the network. If I choose options under the phone and press 'find network' a couple of times it will lock on, but then minutes later I get the 'searching for network'. Over & over again.
My phone is unlocked using the Olinex method, my radio is current & I can't even recieve incoming calls or texts...outgoing is fine (when I've got network0 & I can use browse the internet & use GPS etc...just nothing incoming...
i have a theory on this its called " crap design"! i thinks its because the internal antenna is towards the bottom of the device so when you hold it you are covering the antenna.
try holding the phone with just two fingers trying not to cover the back (below the battery ) this works for me! i only say this out of observation
Could just be the way the network is configured for HSDPA. Voice traffic can be pushed on to 3G (or release 99 as it is sometimes called) to reduce the loading on the HSPDA carrier / layer.
See it as a good thing
Most handsets I have owned usually drop from HSDPA or 3G or GPRS during a voice call, probably just a design feature to save battery life. Should latch back on after call though. I have to say though, I had the MDA compact IV and the reception is positively shocking! dropping signal is soon as I picked it up and i'm in a good signal area! On its way back to T-MO as I speak as this wasn't the only issue. Shame, great form factor as well.
Symbols on your phone are just that symbolic, they don't always mean what you think they mean.
If a UE is on your desk in idle mode and it looks like you have a great signal and a H displayed, great. It means that it is measuring the quality of the network and you have the ABILITY to hold a HS data session should you want. The reception barrs on most 3g UE's aren't a measure of the radio reception but of the amount of noise. More bars less noise, less bars noisey environment.
If you make a voice call, there is no way any decent network would use HS to carry your call as it is wasting resource somebody else could use and of course pay for. Once in a call the UE has to monitor many things and also maintain that call or data session. In simplistic terms if the conditions do not allow the call to be carried over 3G it will step down to 2G. If it was a data session it could go from HSDPA to 3G, then 3G to GPRS.
Also a network could easily by the swap of a 1 or a 0 carry your voice call over 2G without you knowing at all, freeing up that 3G network that cost billions to roll out and pay licence fees for, for data which they can charge more for.
idrisito said:
i have a theory on this its called " crap design"! i thinks its because the internal antenna is towards the bottom of the device so when you hold it you are covering the antenna.
try holding the phone with just two fingers trying not to cover the back (below the battery ) this works for me! i only say this out of observation
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Click to collapse
I think they made a mistake in the International English manual where it says the antenna is located at the bottom. Either that or it's different for different regional phones. If you download the HTC Touch Diamond_Asia_English_Manual_Manual_080521.pdf or HTC_Diamond_User_Manual_Asia_WWE.pdf from HTC's site, it shows the antenna being at the top next to the camera.
simpsoa said:
Hi all, I'm wanting to know if anyone else seems to be experiencing an issue where during a call the signal icon will change from H to G and the quality of reception / voice also drops to what resembles a non-3G phone.
This seems to happen quite often regardless if the call is inbound or outbound. I can be sitting at my desk and have what appears to be full reception with the H icon, then 2-3 minutes into a call (still sitting at my desk) the icon will change to G and from the quality degradation it must be reducing to 2G... why is this? I could understand if I was walking around but it happens regardless and will never go back up to H during a call only once the call has ended... is this a limitation of the cell network/carrier?
I'm using Dutty's v4, radio 1.09.25.23, Olinex 1.93 hardspl. Network carrier is Optus and I'm located right in the middle of the city - Melbourne, Australia.
I'm wanting to try some of the newer Raphel radios but need to get Security Unlocked first - already PM'd Olipro... just waitin
Any comments ?
Click to expand...
Click to collapse
it's not the phone its the operator fault i have the same prob even with nokia's...if the person on the other part of the line is on gsm the operator will switch u on gsm network...they do this because they don't wont to use often the 3g network
DeadGuy said:
it's not the phone its the operator fault i have the same prob even with nokia's...if the person on the other part of the line is on gsm the operator will switch u on gsm network...they do this because they don't wont to use often the 3g network
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Click to collapse
The operators do not do this. Do they switch you to a land line when you call a land line, no. It is all down to radio quality where you are making the call and not what number or type of line you are calling. The phone networks are not that intelligent
beaker656 said:
The operators do not do this. Do they switch you to a land line when you call a land line, no. It is all down to radio quality where you are making the call and not what number or type of line you are calling. The phone networks are not that intelligent
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Actually, they are, they know what types of numbers you're calling. This is why even for long distance prices, there is a different between calling a land line and a cellphone number. Either way, the system can tell what type of line you're connected to.
I have performed many APN, ROM, and baseband experiments and have successfully routed out every variable contributing to signal loss on data, voice, drop call, and signal blackout. I can produce a full detailed on this if anyone wants. Will just take me some time to collect all my data.
To the limits of not be a Dev nor a coder I believe the issue is with how the phone handles frequency changes based on signal strength or data. There must be a code or script that tells the phone to switch to a lower band if the primary band is below a certain strength. If there is it can be changed to allow the band to be switched more effectively automatically if any of the Lowe bands exceed the primary bands signal strength beyond a certain tolerance. Thus insuring a constant signal strenght between all 3 bands that can be used automatically. The function is allready there and in use but it needs to be found and hacked.
This is where the Devs we rely on come in. The above is all theory and is the limit of my knowlage of how it works. Its the Devs that can take this idea and realise it. I am fairly sure this is the direct cause for the majority of our in call problems. I would be more than happy to vigorously test this and offer full reports if given the chance. If I'm wrong and I'm barking up the wrong tree here let me know please. I want to help but I really don't want to lead anyone the wrong way.
Thanks
[BUMP]
Developers (you know who you are) . Trying my best to help on this but it needs to be confirmed at minimum. Really need someone with more knowlage on this.
Thanks in advance oh wise and powerful developers. Consider your posteriors kissed. Lol
Thanks for taking the initiative on this. I have a couple questions:
How did you collect your data? (Not looking for a detailed answer, just a quick rundown)
Did you use a control?
So, im a little confused on what your looking for exactly. Are you asking if there is a way to hot switch the base bands on the fly automatically when signal strength is low?
I am interested to see what you have, but want to fully understand what your looking for.
Colbur
The majority of my data is notes. As a control I used the stock baseband, stock rom. Completely cleaned the phone of any app and used it solely for phone called during the day. I noted the signal strength changes when traveling in and out of various coverage zones. 2g 3g 4g . Made note of how long it took to change then moved again. Seemed very erratic in how the phone decides what signal to use. Couldn't seem to understand why in some cases it would stay on a 4g band when a 3g was twice as strong in the dame spot.
So after changing roms and apn's I cunducted the same experiment with the same average results. Used the same rout and time in stops.
Changed baseband same rom. Same experiment. Got the same average.
Changed baseband and rom again. Again same results.
I think the problem is how the phone decides what band is best at any given time. If its set to pic a band with a higher data rate then it would stick on 4g even though a 3g signal is much stronger. How often it changes is also an issue. Polling to often will drain the battery and depending on how the variables are set it will swing rapidly across bands while in use. It would be great to crack open the files that decides this so we can tweek it to fit our geographic location better.
An update
This specific behavior is in direct relation to the Baseband. While the APN is dealing with credentials the baseband in our case determines the hand shake and frequency from quadrant to quadrant when rolling past towers .
The other eminent and probably the most important is the refresh rate of the network. The more frequent its set to refresh the more it uses battery . If its set to low then you loose signal more often.
Cab121 said:
An update
This specific behavior is in direct relation to the Baseband. While the APN is dealing with credentials the baseband in our case determines the hand shake and frequency from quadrant to quadrant when rolling past towers .
The other eminent and probably the most important is the refresh rate of the network. The more frequent its set to refresh the more it uses battery . If its set to low then you loose signal more often.
Click to expand...
Click to collapse
I'm assuming that this is going to be for a particular region as where I am, I never have experienced the issues with the phone as others have.
Detailing your region and the exact method you used to test this would be a good idea as well, that way others in different regions can test it out and see if they get the same results.
From what I notice on my phone (CM7.2+, v21E), when the signal strength goes below -110dB on 3G, it switches to 2G. My phone is the P920 so there's no 4G. I think using empirical data with hard numbers is better than using the number of bars as a gauge, since according to the P920 service manual:
In 3G
4 bars: over -88dBm +-2dBm
3-4 bars: -88dBm +-2dBm
2-3 bars: -96dBm +-2dBm
1-2 bars: -104dBm +-2dBm
0-1 bar: 110dBm +-2dBm (at this point it switches to 2G mode automatically)
In 2G
4 bars: over -91dBm +-2dBm
3-4 bars: -91dBm +-2dBm
2-3 bars: -99dBm +-2dBm
1-2 bars: -103dBm +-2dBm
0-1 bar: -105dBm +-2dBm
As seen from the above, there's a pretty large range between each bar of signal so numbers are better I think. Furthermore when you factor in the fact that dBm is calculated in logarithmic form, an increase of -10dBm (-80dBm --> -90dBm) would mean a 10000 fold decrease in performance.
This is fantastic data and a great post. What are you using to log your signal data?
Been using a few maps but I'm uncertain of there accuracy .
The LG stock rom only allows you to use the bars as a gauge of your signal strength. I'm using CM atm, it allows you to display your signal strength in dBm instead which is very helpful for things like this.
Hi all,
TL;DR: Does anyone have issues with lots of reception loss in areas with less-than-stellar signal on the I9305 (LTE or 3G or GSM)?
Tomorrow, I want to take my S3 to Vodacom (my carrier in South Africa) so that they will hopefully check the thing and fix / replace it.
The problem I'm having is that my signal drops ( (/) "No Access" sign at the top where the signal strength should be) whenever I'm in a low signal area while others have continuous signal (my partner with his I9300 will still be able to make calls).
I've tested with and without LTE on (LTE is spotty everywhere), on 3G (set it to WCDMA Preferred in one of the secret menu's), or GSM/2G (both via the secret menu and the normal one). There are places where I can put my hand over the back of the phone and within 5 seconds, the signal will disappear completely, until I take my hand away.
For reference, I use No Signal Alert to notify me, mostly because when I got my phone, the bad LTE reception caused frequent radio hangs, which would leave my phone without signal until I checked (hours) later, which forced me to switch to "WCDMA Preferred".
Cheers,
LV
First Time I have to open a new thread
Is it possible, that the Data Connection speed has a negative impact on speech quality?
Today at home with WLAN ON and Mobile Data OFF,
I was wondering that I have only on telephone signal bar.
After making some changes to the mobile settings I came to the following conclusion.
The mobile signal strength is depending on your LTE/3G/GSM Settings whether you use your data connection or not!
LTE/WCDMA/GSM --> -101 dBm (1 signal Bar)
WCDMA/GSM --> -91 dBm (2 signal Bars)
Only GSM --> -69 dBm (4 signal bars)
Edit: A few minutes ago I met a friend and he was complaining about the bad speech quality of his new HTC one mini.
(He had the phone already replaced at his provider because he thought that the phone is defective)
After I changed his Data connection to Edge the speech quality was nearly perfect and his signal bar jumped from 1 to 5 bars.
I now it is not the best solution to reduce the Data speed you have paid for, but it definitely helps
I like this phone but I get quite poor data connections, where I used to get decent, particularly in my home. My previous phone, an OPPO A77 worked quite well, as much as i disliked a lot of its functionality.
I've contacted Motorola and they want me to send it to them. A week turn around really!
I remember having this issuer with a phone years ago, and a simple tweak in the service or engineering menu (I think, to change the band it defaulted to) made it work much better.
I've searched for the secret codes to enter Service or Engineering mode, but nothing works.
Any help appreciated. I'm in Australia BTW.
Could you tell me if the problem is slow connection or you get constantly disconnected?
Try setting in network preference to a lower type ( like from 3g to 2g) maybe the reception where you live is more stable with a lower type. The higher the quality, the less range it can reach to people's phones. This means 2g can be reached on a phone farther away from the signal source than 3g can. And if whatever type you're currently connected is not stable ( you're too far away from the source), internet will perform worse than when on 2g. Consistency on the connection is the key for mobile internet performance.