Searching... / No Signal - JASJAR, XDA Exec, MDA Pro General

Is there any difference between the "Searching ..." and the "No Signal [!]" ?
When on the train in tunnels the device rightly goes to "Searching ..." while you'd expect there to be no signal, then when I hear other people on their phone, mine's displaying [!] with "No Signal" Why? Is there anything that I can do to make the device connect faster?
I've set the device from Auto to GSM in the Settings > Phone > Band, which has helped a bit...
Is there anything else?
Regards.

Theoretically, there is a slight difference since "Searching" means that the PPC is actively searching for a signal and "No signal" simply means that the PPC is traveling through an area where there is no tower for it to connect to. It depends on how well your provider has covered that problematic area. As far as I know, there is no direct way to influence the search speed for a network. This is possible on handsets from Motorola for example.

Don't think there is any way of getting better reception unless you get yourself an external antenna. The signal strength depends on a few matters. First it is the service provider (e.g the phone company). The guy with the phone ringing might have a provider whom coincidently has a signal tower much nearer to the tunnel compare to yours.
2nd, there is a matter of phone. Each phone receptions are different. Not just PPC based. Some said that the Sony's older model has very bad reception and some said Nokia / Motorolla has very good receptions. It depends on model and company I guess. There isn't really much you can do about it.

I think a lot of it has to do with your device trying to save power.
I work in an office where I have no reception, so basically all day my phone says "no service" however there is full reception right outside my building.
When i leave the building, i dont automatically get reception and sometimes it can take 5 or so minutes to get it.
I think the phone must go into some sort of battery save mode whereby after a certain time of having no reception, it increases the time between checks for reception.
This i find is very very annoying and most times i have to turn flight mode on and off.
This problem was even worse when I had the xda II.
Do any of you find you have this problem too?

Related

Phone signal strength problems - anyone else had problems

I have moved from a Nokia 7610 to a Wizard (on O2). I have fallen in love with it for all sorts of reasons.
The major hassle so far is signal strength. I'm not sure if I have a dud phone? For the last month I have run the Nokia and Wizard in parallel. I am constantly finding myself out of range or with one bar of signal. The phone doesn't function reliably with a single bar. Most irritating is that this happens at home also. (The nokia was on O2 also).
If there is not a solution to this I may have to go back to the nokia and accept what I was trying to avoid - having to carry a phone and a PDA.
Thanks - Kneale
do you have another pda phone you can run it against?
reason i ask is dont forget that nokia phones have more bars than the jams do
so for instance, 8 bars in nokia (full) would be eqiv to 5 bars in the jam (full) if that makes sense
ignore the numbers at the top, i dont know the exact number of bars
Thanks. No - I don't have another PDA phone. I realise there is a difference in number of signal bars. I'm simply not getting a good enough signal in to make it functional as a phone.
I work as a doctor and need a 100% reliable phone more than a PDA. Just beginning to get into all the software / music / video / etc. aspects of it however. Would find it hard to give up now!
Kneale
Dont expect this phone is going to have premium reception... the only phone I found exceptional is Sony Ericsson Z600 so far...
People said 1.12.0 GSM firmware would have better reception. You might try to upgrade your ROM. I think O2 provided latest official firmware as well, so you might wanna test with it.
Yes - my cda is the same. My SE 700i has a far better reception. The O2 seems to fall out of range alot - I have to out it into flight mode on then off!
I also posted a while ago that the signal strength is pretty poor. Never had much trouble with my nokia but in a few places eg work im pretty much on the 1 bar and have lost the signal on one occasion.
Thanks for this. Finally got so irritated with it that today I visited the O2 shop and then spoke to the on-line customer service. Both were very good.
Bottom line is that they are sending me out a replacement to try in case I have a dud. I'll let you know how I get on.
Kneale
i think i will need to retract what i said!
for the last 24 hours, my reception goes down and then nothing, just the dots
have to go into flight mode then out and i get my bars back
Of cource, about signal stregth, nokia is the best.
But you can improve signal stregth of your pda phone by switching it to manual network searching mode.
Go to phone/ settings/ networks/ manual.
oainot said:
Of cource, about signal stregth, nokia is the best.
But you can improve signal stregth of your pda phone by switching it to manual network searching mode.
Go to phone/ settings/ networks/ manual.
Click to expand...
Click to collapse
How will that improve signal strength exactly ?
knowsleyroader said:
oainot said:
Of cource, about signal stregth, nokia is the best.
But you can improve signal stregth of your pda phone by switching it to manual network searching mode.
Go to phone/ settings/ networks/ manual.
Click to expand...
Click to collapse
How will that improve signal strength exactly ?
Click to expand...
Click to collapse
It doesn't, but it can speed up the re-acquisition of cell (i.e. less search time).

Losing reception

My Charmer keeps losing reception, not sure if this is the right place to ask but its closer to a prophet than a magician imo.
Basically it could be connected to GPRS or just sitting idle and about once a day (that i notice) it just loses reception. I go in tell it to search a network and it finds one.
Its set to automatically detect a network, have I got a dud unit or is this a more common thing? I have had a search around and the lack of results would indicate its a dud unit.
Any advice guys would be gratefully received.

HERMES WORST NIGHTMARE - "the cell phone death trap"

I recently moved into a new ‘cell phone death trap’ apartment (apt).
I’ve seen my phone connect, I’m guessing; connect to four different cell towers from my apt. I’ve sat and watched it go from 2 bar E, disconnect, to 1 bar G, disconnect, to no bars 3G, disconnect, and so on….
But here’s the clincher…
Sometimes it will also connect to a full strength edge network, but it indicates it’s roaming by the Triangle icon. Now if I’m on that ‘Triangle” network, my phone works great, meaning I actually can make and receive calls!
But, I’m guessing again, because it shows it is roaming; it also does not like to stay connected to this network. Actually it prefers to switch itself back onto a weak edge network without any signal.
My phone battery doesn’t last more than five hours, NOT TALKING, just in standby because it is constantly switching towers.
At this point I want to throw my Hermes out a window! But I know that wont do any good, because anyone else who come to my apt and has AT&T/Cingular gets the same results.
So here’s my question:
“Can I force my phone to stay on a particular cell tower?”
If so, I love you….
you should re-post over in this thread Daniel's software might be able to solve your problem (or Daniel might have other ideas).
thank you for the suggestion. i tried that and he said, "Sorry nop. It isnt the pourpose of cmp or bs...."
I don't think you can force to a specific tower but you can force to a particular provider:
START/SETTINGS/PHONE/NETWORK/MANUAL
and also select whether you want to force GSM/WCDMA and the GSM/UNTS band:
START/SETTINGS/PHONE/BAND
Maybe by going this route you can lock onto a reasonable signal.
2 other alternatives... Sell the appartment... Buy a landline and donate the Hermes to me
taze said:
I recently moved into a new ‘cell phone death trap’ apartment (apt).
I’ve seen my phone connect, I’m guessing; connect to four different cell towers from my apt. I’ve sat and watched it go from 2 bar E, disconnect, to 1 bar G, disconnect, to no bars 3G, disconnect, and so on….
But here’s the clincher…
Sometimes it will also connect to a full strength edge network, but it indicates it’s roaming by the Triangle icon. Now if I’m on that ‘Triangle” network, my phone works great, meaning I actually can make and receive calls!
But, I’m guessing again, because it shows it is roaming; it also does not like to stay connected to this network. Actually it prefers to switch itself back onto a weak edge network without any signal.
My phone battery doesn’t last more than five hours, NOT TALKING, just in standby because it is constantly switching towers.
At this point I want to throw my Hermes out a window! But I know that wont do any good, because anyone else who come to my apt and has AT&T/Cingular gets the same results.
So here’s my question:
“Can I force my phone to stay on a particular cell tower?”
If so, I love you….
Click to expand...
Click to collapse
Are you able to change networks?
Are you able to ask your service provider the location of the towers and if they're planning either any upgrades or any more in the area?
If not you may wish to consider the first point, changing service providers.
I know what a pain it can be to have little or no service when needed. Personally, here in the UK, I'm on Orange. Where I lived in Wales it was either Orange or Vodafone that has a decent signal. When I'm out and about with work those are the two popular towers with o2 creeping up and some others too, but for the most part those are the strongest.
I don't, I'm sorry, have any better advice for you. Apart from leave your Hermes on charge when you're home near a window (safely) and carry a bluetooth earpeice around instead Good Luck with your Valiant Quest
ach2 said:
I don't think you can force to a specific tower but you can force to a particular provider:
START/SETTINGS/PHONE/NETWORK/MANUAL
Click to expand...
Click to collapse
i went to that tab and all i have is a Find Network button, which does nothing...no manual option
ach2 said:
and also select whether you want to force GSM/WCDMA and the GSM/UNTS band:
START/SETTINGS/PHONE/BAND
Maybe by going this route you can lock onto a reasonable signal.
Click to expand...
Click to collapse
I've tried this method as well and it does not help. apparently both the good and the band networks all fall under GSM(900+1800)+UMTS(2100). The other two band options never find a network.
ach2 said:
2 other alternatives... Sell the apartment... Buy a landline and donate the Hermes to me
Click to expand...
Click to collapse
I'll consider it....thank you for your suggestions, I REALLY APPERCIATE ANYONES (constructive) FEEDBACK.
Elwyn M3100 said:
Are you able to change networks?
Are you able to ask your service provider the location of the towers and if they're planning either any upgrades or any more in the area?
If not you may wish to consider the first point, changing service providers.
I know what a pain it can be to have little or no service when needed. Personally, here in the UK, I'm on Orange. Where I lived in Wales it was either Orange or Vodafone that has a decent signal. When I'm out and about with work those are the two popular towers with o2 creeping up and some others too, but for the most part those are the strongest.
I don't, I'm sorry, have any better advice for you. Apart from leave your Hermes on charge when you're home near a window (safely) and carry a bluetooth earpeice around instead. Good Luck with your Valiant Quest
Click to expand...
Click to collapse
Thank you for your suggestions. Unfortuantly im locked in a 2yr contract, thats how ****ty american cell phone companies do things. Plus, the better providers in the area dont use SIM cards (ie. Sprint/Verizon), so that would mean bye bye Hermes.
Ill will go by the Cingular store and ask about the possible service upgrade, but those fools dont really know whats what, thats why im on xda-dev!
I like the bluetooth idea, ill try find a "sweet spot" in the apt and try that method. Thanks again!
"I have dream..."
My idea just seems possible, however i cant program so who am i too.....
The idea of having blocked cell id numbers. If i could FieldTest or somehow extract the cell ids from the towers i dont want, then create a file that the phone checks against before joining a tower.....
I dont know, just a dream i suppose...
In both cases (roaming and not) are you registered in same operator?
If you're having a difficult time maintaining solid cellular reception, you might want to consider buying an external antenna. Refer to my post here regarding an antenna that can be purchased from Radio Shack. The antenna is now on clearance for $20 and the pigtail is $10. This may or may not help depending upon your location in relation to the towers, but if you try it out, let me know how it works.
Cheers
Yeah, I'm on an 18 month contract... But I'm about 8 months in now
You might even be able to get bluetooth repeaters once you find your, ahem, sweet spot
danielherrero said:
In both cases (roaming and not) are you registered in same operator?
Click to expand...
Click to collapse
i believe so. the only reason i think it's roaming is because of the Triangle icon. But my SIM is only authorized for one operator, Cingular.
is there a better way to check?
Thank you very much Daniel!
Lancealot said:
If you're having a difficult time maintaining solid cellular reception, you might want to consider buying an external antenna. Refer to my post here regarding an antenna that can be purchased from Radio Shack. The antenna is now on clearance for $20 and the pigtail is $10. This may or may not help depending upon your location in relation to the towers, but if you try it out, let me know how it works.
Cheers
Click to expand...
Click to collapse
i would be willing to try those products but i believe they're now fully discontinued. Either of those item numbers from your post no longer exsist.
No problem
taze said:
i would be willing to try those products but i believe they're now fully discontinued. Either of those item numbers from your post no longer exsist.
Click to expand...
Click to collapse
Call your closest Radio Shack and ask if they have either of those catalog numbers in stock. Worst case scenario is that they won't, however they can check the districts perpetual stock and see how many are available, and if you ask nicely, they can have the antenna and pigtail shipped to their store so you don't have to run all over creation just to get it.
...An even worst case scenario would be if you didn't live in the US or didn't have any Radio Shacks close by.. however I might know of someone who could use their employee discount to cover shipping costs Let me know if you have any questions.
weinson said:
you should re-post over in this thread Daniel's software might be able to solve your problem (or Daniel might have other ideas).
Click to expand...
Click to collapse
Taze,
I would also recommend that you try one of Daniel's applications - he is working on Comm Manager Pro but I think that Bandswitch will probably help you. I find similar problems to those you describe at work here in the UK with T-Mobile and my battery would often run low even during a day at work. The problem appears to have been caused by the Vario II (Hermes) spending all day jumping back and forward between networks whilst hunting for the best signal. Although the Bandswitch application (very small footprint) will not increase the signal you may find that forcing the phone to operate in a particular band helps - this is very easily achieved via the Bandswitch interface rather than going into settings each time. I now regularly switch to GSM each day when I get to work and it has solved my battery run-down issue completely!
Comm Manager Pro does much the same and more. It allows you to define a location (according to Cell ID and LAC Code) from which you can set the CMP application to (amongst other functions) switch to a particular band - or even turn the phone off).
Given what you have said this may not help but I would certainly give it a go. Good luck.
Regards
tony.wheeler said:
Taze,
I would also recommend that you try one of Daniel's applications - he is working on Comm Manager Pro but I think that Bandswitch will probably help you. I find similar problems to those you describe at work here in the UK with T-Mobile and my battery would often run low even during a day at work. The problem appears to have been caused by the Vario II (Hermes) spending all day jumping back and forward between networks whilst hunting for the best signal. Although the Bandswitch application (very small footprint) will not increase the signal you may find that forcing the phone to operate in a particular band helps - this is very easily achieved via the Bandswitch interface rather than going into settings each time. I now regularly switch to GSM each day when I get to work and it has solved my battery run-down issue completely!
Comm Manager Pro does much the same and more. It allows you to define a location (according to Cell ID and LAC Code) from which you can set the CMP application to (amongst other functions) switch to a particular band - or even turn the phone off).
Given what you have said this may not help but I would certainly give it a go. Good luck.
Regards
Click to expand...
Click to collapse
im going to try bandswitch today and see how it works. thank you for the suggestion!
i wish daniel could add the feature of blocked, preferred, of locked Cell ID's. that would be worth a good amount of money to me....
Hi.
I would like to help you.... I can detect cells and lac but I cant force radio hardware to attach on a particular cell. This a task for Radio ROM. The only posibility (maybe) would be if the operator names are diferent. Could you go to settings a search for operators? Maybe your operator has different name in roaming than non roaming. In that case It would be easy to help you....
Oooo if FieldTest were a controllable application....
Ok what I’ve discovered so far after watching FieldTest for about an hour.
The Good Connection -
LAC 0020
MNC/MCC 31017
NCELL INFO1 700-80 dbm <---- (at least four out of six NCELL maintain a steady 700-80dbm, often all six NCELL)
NCELL INFO2 700-80 dbm
NCELL INFO3 700-80 dbm
NCELL INFO4 700-80 dbm
NCELL INFO5 700-80 dbm
NCELL INFO6 700-80 dbm
BAND 2CS
CHANNEL 1:CCCH (stays, doesn’t change)
The Bad Connection
LAC d6ef
MNC/MCC 31380
NCELL INFO1 140-100 dbm
NCELL INFO2 140-100 dbm <---- (i get two NCELL at the most 140 each, rarely four NCELL, never more)
NCELL INFO3 0
NCELL INFO4 0
NCELL INFO5 0
NCELL INFO6 0
BAND 3:850 (once I saw it switch to PCS on this same MNC)
CHANNEL 1:CCCH/0:BCCH/255<UNKNOWN> (switches between these quite frequently)
So what I’ve interpreted from all that is.
Well I’ve confirmed my ****ty connection. Even though the phone often shows two bars, I can’t make or receive calls. Based on the NCELL db numbers and the constant channel changing, that **** just don’t work.
Most importantly, the phone is always trying to switch to the highest possible band. Because PCS is a lower band than GSM 850, my phone won’t stay on the PCS connection.
O yes, another discovery is, in WM6, if you are connected to a PCS band network, it displays the Triangle icon as if you are roaming but in fact it is not roaming.
So Daniel since you seem to be the best chance for a better life [for my Hermes]:
I need a way to force band selection beyond just GSM and UMTS.
I tried BandSwitch and it does not work for me because all my available connections fall under GSM.
And even beyond that I’d like to be able to force MNC’s, as I believe they are the specific network number.
Or can I block a LAC?
In settings, I only have one operator, Cingular, “Home of the most dropped calls.”
Hi.
I undestand perfectly your frustration and I will try to do what I can althought It doesnt seem easy thing because there isnt any(known) api to manage Radio Rom. Fieldtest is OEM dependent and I imagine It only works for only one manufacturer of radio hardware chip.
Ok, first try. If you start radio phone 10 times....
1) how many times your phone register to roaming (and wished) network?
2) If registed to roaming network, how much time (aprox) stays on it before register to bad cells?.
Why? well ,CMP executes actions when you enter on some place (compound by cells and lacs). You could create a place with your hated cells and then associate the action "reset radio" when registed to those cells (or lacs). In this way if your device falls into bad cells it would be resetted (only radio, not phone) until registed to good cells...
Only an idea....
Dani
If you can determine the direction of the "bad" towers, try lining your walls with lead sheets to block their signals and letting you connect to a prefered tower.

Xperia Issues and Thoughts

I've had the US version for a few days now and figured I would share my experience thus far. This is not a definitive list. I ordered through sonystyle.com and am operating on T-mobile in the US.
The good:
1. Phone build is spectacular.
2. Screen resolution is the best I've ever seen.
3. Wifi picks up and logs on quicker than any phone I've had.
4. Touch-flo cabs can be added very easily. Can mix and match the two GUI's.
The bad:
1. Internet and regular calling access is sporadic. I need to perform a soft reset every few hours or nothing works.
2. A fully charged battery will be used up by evening if push email is auto and have moderate phone use.
3. The phone doesn't seem to be able to switch towers in the middle of a phone call. The calls are dropped and you have to call the person back.
Overall, the phone is really incredible and it's being hampered by OS build or something. If the phone didn't have the potential that it does, I would send it back. I figure I'll be patient and wait for the dev team to patch or cook something. I've used the HTC Touch Pro (Fuze) and the Xperia is definitely more sexy and has a better build and keyboard (personal opinion). It will be interesting to see if any others have the same issues and if it's associated with T-mobile US only.
cooool you have the X1a? Do you mind dumping your ROMs please?
Lurchy24 said:
1. Internet and regular calling access is sporadic. I need to perform a soft reset every few hours or nothing works.
2. A fully charged battery will be used up by evening if push email is auto and have moderate phone use.
3. The phone doesn't seem to be able to switch towers in the middle of a phone call. The calls are dropped and you have to call the person back.
Click to expand...
Click to collapse
none present on my X1i. For the battery, just wait, is still new... use it for 5/6 cycles and should be better. Also no issue for internet/calling and don't understand what you mean about towers...
Lurchy24 said:
The bad:
1. Internet and regular calling access is sporadic. I need to perform a soft reset every few hours or nothing works.
2. A fully charged battery will be used up by evening if push email is auto and have moderate phone use.
3. The phone doesn't seem to be able to switch towers in the middle of a phone call. The calls are dropped and you have to call the person back.
Click to expand...
Click to collapse
1°) The BT and wifi are bugged. The BT disconnects sometimes (already told in other threads) and the wifi passwords are sometimes just lost.
But on 3G/GPRS/UMTS no problem and no need to perform soft reset.
2°) ouah, perhaps you have a problem there... I have (in France) a software that retrieves the mails (every 15 minutes) with a specific data connection.
This with some Wifi on, UMTS on and some calls, my X1i makes a lot more than a single day.
Did you install something that is draining the battery?
3°) weird, I live in a place where 3G signal is low, and I definitly swap from "2G" to "3G" without a hitch, even while a phone call.
Lurchy24 said:
The bad:
1. Internet and regular calling access is sporadic. I need to perform a soft reset every few hours or nothing works.
2. A fully charged battery will be used up by evening if push email is auto and have moderate phone use.
3. The phone doesn't seem to be able to switch towers in the middle of a phone call. The calls are dropped and you have to call the person back.
Click to expand...
Click to collapse
I have not had any problem with #1 and #2, and I'm also on pushmail mode. By the evening, I would still have 50-60% depending on the activities I carry out with my Xperia during the day time (obviously lesser if I do alot of video playback, etc)
for #3, I doubt any phone would be able to switch tower w/o dropping the call. It's the case for any GSM phone, and I could prove that since I got a UMTS access point (equivalent of the tower except that this is a "personal" one ) at home, and once I walked out of the coverage zone, the call will drop regardless of which phone I hold.
By towers, I think he means cell towers, i.e when he is in the range of one tower, lets say while driving, then leaves that tower's range and goes oto another tower, it doesnt switch, it just drops the call.
Rory
Yep, I know where the points are on my drive when the range of one tower ends and the other begins. My previous phones could all make the transition without issue. My Xperia definitely can not. 25 minute drive = 3 towers and 2 dropped calls.
Had to soft reset twice this morning before I could get a call to go through. The phone says connecting and then connected but nothing comes through. Real pain in the butt.
Perhaps I have a defective model? Anyone else using X1a on T-mobile in US. I would like to know if it's a ROM issue that can be fixed or somehow the phone isn't compatible with T-mo US....
Lurchy24 said:
Yep, I know where the points are on my drive when the range of one tower ends and the other begins. My previous phones could all make the transition without issue. My Xperia definitely can not. 25 minute drive = 3 towers and 2 dropped calls.
Had to soft reset twice this morning before I could get a call to go through. The phone says connecting and then connected but nothing comes through. Real pain in the butt.
Perhaps I have a defective model? Anyone else using X1a on T-mobile in US. I would like to know if it's a ROM issue that can be fixed or somehow the phone isn't compatible with T-mo US....
Click to expand...
Click to collapse
I wonder if the ril file jack posted would help?
What is that file and where can I find it? Thanks for the suggestion, I'll give it a shot.
rorydaredkign said:
By towers, I think he means cell towers, i.e when he is in the range of one tower, lets say while driving, then leaves that tower's range and goes oto another tower, it doesnt switch, it just drops the call.
Rory
Click to expand...
Click to collapse
yes I know he's refering to the cell towers.
I do have a home version of cell tower at home too. It doesn't switch and it happens for all the phones.
zenkinz said:
for #3, I doubt any phone would be able to switch tower w/o dropping the call. It's the case for any GSM phone, and I could prove that since I got a UMTS access point (equivalent of the tower except that this is a "personal" one ) at home, and once I walked out of the coverage zone, the call will drop regardless of which phone I hold.
Click to expand...
Click to collapse
Sorry but you are talking crap. The whole point of the GSM standard is to get phones to carry on talking as you move location. I suggest you read about Handover (or Handoff). The Wiki page isn't the best I've seen, but it does try to explain it.
artesea said:
Sorry but you are talking crap. The whole point of the GSM standard is to get phones to carry on talking as you move location. I suggest you read about Handover (or Handoff). The Wiki page isn't the best I've seen, but it does try to explain it.
Click to expand...
Click to collapse
ok I stand corrected. my apologises.
I just noticed that my phone (and my wife's phone) cuts off once I move out of my home umts access point, so I assume its the same for all the cell towers. (on hindset, mine being be a scaled down cell tower so I shouldn't be using that to prove commercial one )
That said, in reading further, do you know if soft or hard handoff is generally implemented in CDMA network? I suspect it's the latter, and that probably explains why you have dropped call due to inability to switch to the new channel fast enough?
zenkinz said:
ok I stand corrected. my apologises.
I just noticed that my phone (and my wife's phone) cuts off once I move out of my home umts access point, so I assume its the same for all the cell towers. (on hindset, mine being be a scaled down cell tower so I shouldn't be using that to prove commercial one )
That said, in reading further, do you know if soft or hard handoff is generally implemented in CDMA network? I suspect it's the latter, and that probably explains why you have dropped call due to inability to switch to the new channel fast enough?
Click to expand...
Click to collapse
I doubt your home-hosted access point would be allowed to perform a handover with public cell tower, that's why it cuts off. It's like trying to move from one WLAN SSID to another. If you read more about handover, you'll notice that it includes a lot of security measure also. If handovering and handovered base stations are under different controller(RNC), all encryption information has to be passed from old controller to the new one, etc...
Yes, The point of GSM is that it 'hands off' the call as you pass by different cells automatically, so no dropped calls.
In fact, this is ONE reason they do not want people to use mobile phones on aeroplanes, is that since you would be on top of many towers/cells at one time, then they would be constantly changing/swapping among cells, and if there were a lot of people doing that, the chatter between the cells would be very great and overload them. Thats why they want to set up a cell on the plane itself, so that all the mobile phones talk to that cell only (as the strongest signal).
It has nothing to do with interference to the plane systems. If that was the case, it would be so easy for a terrorist to crash a plane, just bring on a radio transmitter and everyone dies.
Yes, it's the handoff that can't happen.
Othertimes, when I'm sitting in one place, I'll have 3 bars and the signal will suddenly disappear. The phone will take 15 seconds to reaquire and then it will be fine. Usually seems to happen when someone tries to call me. It's almost like the phone hasn't maintained a connection. Very annoying.

We should complain to Sony about weak signal.

I email Sony a complain about weak signal and this is what I got in respond:
Thank you for contacting Sony Ericsson Xperia Support.
We don't have a list of the newest updates for this phone, but I have heard nothing of your issue before, it is worth trying a reset if there is no update available.
Try resetting the hardware. To do this, hold down the two keys on the front with silver "-" signs. While you are pressing them, take the stylus and press the reset button through the top opening through the casing of the stylus.
What I also suggest is resetting the phone software via "Clear Storage".
To do this, select Start icon, then Settings, then tap the System tab. You will see Clear Storage in the top right corner.
1. The Sony Ericsson Update Service is a free download that can be found at www.sonyericsson.com, after you click on "Support" and then choose your phone model.
2. Select your country and region.
3. Under the section titled”Software and Set Up” choose, “Sony Ericsson Update Service”.
4. Download the application to your computer and install the program.
Once you have installed the program and run it, it will give you instructions on how to install it on the computer and how to run it on the phone afterwards. Please make sure the phone and the USB cable are not connected to the PC throughout the installation process. The Update Service is meant to update the software on the phone.
If you require more information, or have any other questions, please visit our website at SonyEricsson.com/X1 or call us at 1-877-7XPERIA.
Dunno what's going on here, I can't complaint: my reception is GREAT in both X1a and X1i
You should start a poll on this thread
1- Reception GREAT
2- Reception OK but...
3- Reception SUCKS
Reception good / great here... 2/4 bars of HDSPA all around my town...
signal is temprmental. i am not sure it is down to the phone though
Loco5150 said:
Reception good / great here... 2/4 bars of HDSPA all around my town...
Click to expand...
Click to collapse
Same for me..
Compared to my Motorola Q9h Global, my Xperia X1a (and my Nokia E71-2) appear to have fewer bars in the same place.
I don't want to insult anybody by suggesting that this is the case, but I hope we're not assuming that the Xperia has poor RF signal capture just because it's not showing as many bars as another device.
In my part of the world there is a notorious dead zone between Culpeper VA and Orange VA. There are very few phones that can hold an AT&T signal through this zero-bar signal area, and the Xperia is one of them.
reception is just OK. my n95 usualy has a far better signal then my x1. @ least thats for UMTS signals. GSM is fine with both.
probaly a problem of the Metal case
1- Reception GREAT
Poll up
Express yorself
achmed20 said:
reception is just OK. my n95 usualy has a far better signal then my x1. @ least thats for UMTS signals. GSM is fine with both.
probaly a problem of the Metal case
Click to expand...
Click to collapse
I'll second that, my N95 8GB has a better signal strength than my Xperia, i have owned a few Win mob devices in the past and they have all had poor reception compared to The Nokias i had at the time.
Done blame SE.. its a matter of fone operators.
nup, reception is much worse on the x1 than my k800i.
with my old phone I could get a little bit of reception at work (thick walls, no windows, lots of machinery..)
but I rarely get a signal now with the x1.. (and am unable to make calls, or they drop out half way through)
(and I am with the same provider)
But signal bars don't really represent how much signal you get. Making calls and it not dropping are the key factors you need to compare with.
Yes, however having comparison with SE P1, and my HP laptop with ExpressCard,
all on the same operator,
X1 is a bit weeker on reception.
Im also having same problem with signal on o2 in the uk, my blackbbery bold is fine, but x1 normally shows 1/2 bars
Really? Well here in montreal we have a tunnel, the Louis-Hyppolite Lafontaine tunnel. This tunnel is a dead zone, of course, but on a strong enough phone you get a link until nearly at the middle. With my X1, I got signal from start to end, the only other phones that I saw capable of doing this are the blod and E71.
Even if in my phone I see 3 bars, the signal is still very strong. Well maybe the X1 has better sensitivity, that would explain why you see 2 bars on the SE, when, conversely, you see 4 on a motorola.
X1 definitely has serious reception problem.
I am not taking about the number of bars but off and on signal are comepltely gone and it will start searching for a network.
I have tested this by putting the phone on the table and by observing the signals bars over a long period of time. Often I have noticed full signal bars and many time there are not signals at all.
Service is weak in my area but none of my pervious mobiles have shown such a poor reception.
My reception is just ridiculously bad!(I live in the Netherlands, Utrecht)
When I'm on MSN or browsing the web, or even when I'm SMS'ing,
the signal just drops. It's really starting to bug me!
I dont even have a connection when I'm on the bathroom @home..
I've noticed that it seems to be more due to the issue of HSDPA. It'll lose signal with HSDPA but then it'll connect with full bars of the older GPRS. In my opinion this would indicate that the service provider (vodafone) is the issue, not the phone.
I think another issue is that the radio antenna is actually part of the metal battery cover. If you take it off and turn the cover over you can see 4 exposed pieces of metal, I assume these are just that. Perhaps the signal you receive is so poor that even your hand covering the antenna is blocking it.
Here are the results of a hard comparison:
three (3) different devices -
HTC Polaris P3650 (ie. the 1st one)
SE X1 with radio ROM 1.11.25.76
Acer DX900
I used the same SIM card in all three in exactly the same marginal signal area (same verandah) in succession (total swap time to all three was about 10 minutes, no sudden electrical storms, weather fine and clear)
Both the Polaris and the DX900 easily found enough signal to work directly after boot with both HSDPA and GSM
The X1 obdurately stayed dumb and stupid, although it works OK in high signal areas
Conclusion: the X1 is useless in marginal signal areas. I suspect the aluminium case. It works fine if you never leave the city areas. When combined with the original underpowered battery, I now regard the X1 as an expensive toy ... pity, as it has lots of grunt (CPU, RAM, storage, resolution, GPS) but I'm simply not in the design market demographic.
I've tried 4 different radio ROM's now in the X1. WiFi, BT, GPS are excellent. GSM/GPRS and UMTS are hopeless in marginal signal areas.

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