Modem Change for A9100 - Galaxy A3, A5, A7, A8, A9 Android Development

My Galaxy A9 pro 9100 has a bug i believe.... It does not pick up 2g network unless really close to a tower and my connection to the cell company is not stable the signal fluctuates even though am standing at one place not moving. I guess its because of the Chinese version the modem or CSC files may have something to do with way how the phone searches or connects to a carrier network... Can someone help me please

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Triangle in Taskbar?

I sometimes get a triangle icon in the taskbar, next to the E / 3G icon.
Any idea what it means?
I cannot click it ... or better: nothing happens.
This is the Roaming indicator.
Mmmmh.
And why am I seeing this in Beverly Hills and the network is "AT&T"?
call up AT-T and ask lol.. But that is the roaming Icon sometimes phoines will pick the closest tower to use since it has the best signal and just maybe t-mobile owns that tower Only AT-T will know.
Not an isolated problem
I have a similar issue in Oz. I travel o/s a lot and am used to the roaming signal appearing whilst I am out of the country. However, this is happening right here at home. I have a Telstra 3G SIM card and all too frequently my Kaiser brings up this "Roam" Signal. Generally I then lose 3G as well, dropping back to HSDPA. Even more strangely, it is still showing that I am connected to Telstra. A soft reset usually brings back the 3G signal. I never had this problem with my Trinity and my work is only a few hundred metres from a Telstra tower so signal strength is not a problem. A bug I think, and damned annoying.
you are picking up T-Mobile. AT&T users can still use T-Mobile towers currently as a result of the deal they made when AT&T (Cingular) sold them the 310-170 network in CA/NV. (its now properly renamed to 310-260 by TMO)
the phone's alpha tag says AT&T regardless of what carrier's network you're on when you're roaming. unless you have the 4EON code applied to your account, in which case it would say Off Network when on non AT&T towers.
any idea how I can fix this?
I am fine with it roaming if there is indeed not 3G network but my issue is that it doesn't drop the roaming as soon as it could.
Camstech said:
I have a similar issue in Oz. I travel o/s a lot and am used to the roaming signal appearing whilst I am out of the country. However, this is happening right here at home. I have a Telstra 3G SIM card and all too frequently my Kaiser brings up this "Roam" Signal. Generally I then lose 3G as well, dropping back to HSDPA. Even more strangely, it is still showing that I am connected to Telstra. A soft reset usually brings back the 3G signal. I never had this problem with my Trinity and my work is only a few hundred metres from a Telstra tower so signal strength is not a problem. A bug I think, and damned annoying.
Click to expand...
Click to collapse
I have the same issue - sometimes I have "3G Telstra" (no roaming symbol, and will use HSDPA if needed) and other times I have "3 Telstra" and the roaming symbol displaying. One thing - as I understand it, you are not 'dropping back to HSDPA' - this is actually a service that is on top of the 3G networks, and provides greater download speeds.
I checked with my Telstra reseller who said that this would not change the call rates or data rates. Not sure what causes this though...
Have put this question on Whirlpool as well: http://forums.whirlpool.net.au/forum-replies.cfm?t=846691#bottom
Telstra
I have the same issue on Telstra. Hope a new ROM fixes this.
Roaming Notice
Hmmm, I hate it when stupid people post garbage about which they know little. Problem is, this time the stupid person was me!
The 3G symbol shows the phone is within range of a UMTS signal. The H symbol means it is in range of a HSDPA signal, the high speed data version of UMTS so "H" is better than "3G". Oops, so my phone was roaming to a better signal.
This roaming issue appears to only affect a small number of people whose service providers have a crossover deal with another provider. This appears to apply to those with the AT&T/T-Mobile crossover in the US and here in Oz where the phone will pick up either the Telstra Next G network (UMTS 850Mhz, shown as 3G Telstra) or, in big cities, the Hutchinson "3" Network, (UMTS 2100Mhz with HSDPA, shown as 3 Telstra). I was uncertain about this as I never saw the roaming symbol with my Dopod 810, which always showed 3G Telstra. I think the TyTN II, like the original TyTN, has some different software seetings which means that the phone will try the "3 Telstra" network when it can, and this shows as roaming, whereas my D810 either didn't roam to 3 Telstra, or, if it did it didn't show it as roaming. In any case, it's not actually a problem, and as Telstra have indicated, it makes no difference to the data/call rates. I'm chilled on this. Now if they can fix the "hang-up" bug...
I've been wondering about the elongated triangle pointing up too. I have very poor/no reception in my office at work... though sometimes enough to get a voicemail notification (not enough to be able to call and check, usually don't have a missed-call notification).
I'd thought it might have to do with being connected to Active Sync. Sure would be smart if the phone could get notifications of even calls over an alternative data connection when the cellular couldn't connect... even if ATT charged regular minutes for it would be so much better than no signal, period.
I'm having this issue for some reason on my second Tilt that has been sent to me. The first doesn't show it at all but the second does. I don't understand what its doing.
Deleted.....

Problem with internet Communication

Hello All,
I have a problem with my kaiser, it started i think 2 weeks ago. I have vodafone (netherlands) with a data connection account (hsdpa). Now is the problem that i can't use umts (3g) or hspda. The only thing i can use is gprs. It looks like the modem or something is broken. But that is a kind of weird because (if i understand correctly) its al the same chip (wifi and so on). When i open internet explorer it begins to connect a gprs, 3g data connection. But it can't connect, than you can see a X by the synchronisation arrows (on the top of the screen). And after a few secconds it comes with a message that with the current settings there can't be a data connection. But if seen other messages as well ( the modem on the other side disconnected the connection) The weird thing is that i tried my sim card in my friends kaiser there it works fine, so it have to be my kaiser.
Ok what i tried:
I have a dutch htc kaiser (not vodafone branded or anything)
I use the latest dutty rom, but i tried the orriginal rom and different roms to see if the problem was the rom or something.
When i let the 3g mode on i can see that the phone finds a 3g connection (to call over umts).
Is there any program or tool or something so i can test the modem?
Or does anyone know a sollution for me, i will be very greatfull!!
Ok i tried a other radio to, maybe this was the problem. But it didn't, at this moment i have the default htc dutch rom (who was on the phone when i got it). I searched the net for the same problems, what i found was that this error could be happening when you have your wifi connection open, but i have wifi disabled. The phone is still receiving a 3G connection, but after a few secconds the 3G icon is gone and the failed synchronisation icon (two arrows with an X) is visible. than you can see that the phone is reconnecting. and then if i want to connect to the internet the same story as above is happening.
When i search internet i couldn't find an tool to test the chip/modem.
Because i have it spl unlocked i can't return it for rma, is it posible to restore the default spl?
Hi,
unfortunately I have the same problem with my Kaiser. I have an unbranded German version and it worked fine with all bands (GPRS, EDGE, UMTS(3G) and HSDPA) but since two weeks ago its only working with GPRS and EDGE mode. I have to change band-selection from AUTO to GSM in order to make or receive any calls.
I didn't do any ROM flashing, everything remains the same as the device was shipped.
I assume, that something is damaged but I have no idea how it could happen or how I can find out exactly what is causing the problem.
Since there is still warranty I'll return my Kaiser soon.
seems to be a widening problem
hi,
it seems many have the same issue, see my other posts for linkage to some other threads on it...no solution yet as far as I can tell.
rich
p.s. moderators any chance to link these threads and make a sticky?
ok, thanks for your reply. I've allready found another thread for that issue. But im still uncertain if its a bug in my device or a combination of a bug with a provider specific (Tmob Germany) problem or if its only the provider to blame for??
Chris
I have a slightly different problem. I don't have 3G in my area but only EDGE. Now the problem is that I cannot get speeds higher than about 80 kbs with EDGE.
Now when I put the same SIM in my Touch I can get speeds upto 200 kbs. So obviously this is not a problem of my service provider but rather something wrong with the device.
I have repeated the trial by swapping SIMs a number of times but with similar results all the time. Really don't know of a solution. Will appreciate any help.
haven't seen the edge problem
hi,
my edge speeds seem to vary more by location...I measure up to 200+kbs but have seen it go much lower too. there is a location where I can still get 3G working and i measured up to 1.7mbs for downloading! At my home location it is sporadic edge only and I can't even always get to speakeasy.com to test it, sometimes the speedtest says its not licensed..switching to wifi and it works. My guess is some needed ports are getting blocked by at&t at times..because sometimes it works. I brought all this up with at&t..they are taking some charges off this month and switched me to a cheaper plan too...so they at least seem to care even if they can't quite fix things yet.
rich

Using a UK HTC Touch Diamond in the US

Hi all,
I'm new to MDAs and to these forums so bear with me. I looked around quite a bit and have been unable to resolve my issue. I obtained an HTC Touch Diamond (a T-mobile Compact IV) in the UK and am trying to get it working in the US. While in the UK there were no connection issues but as soon as I got to the US the connection is unstable. I have managed to make about 10 calls in the US but they cut out after a short time and most of the time I cannot make a call or cannot connect to a network at all. It can always see Tmobile and AT&T but can rarely connect, and when connected can rarely call. I have flashed the TLR 3.08.07.16 WWE ROM and updated the radio ROM to 1.09.25.23
Any help would be greatly appreciated
from my basic knowledge of radio, uk networks use gsm while most us networks use cdma that mite be your problem!!
try going to start>settings>phone (in the personal tab)> scroll to the band tab and change ur network from auto to wcdma!! you may also have to change the band setting your using, but u may have to check with your network on what frequency they use
Thanks for the suggestion. Thus far I have only been able to connect on GSM, CDMA has never worked. I also have been using the 850 1900 band which I heard is the one used in the US. I have connected occasionally but am still having trouble.

3G connectivity problem after flashing radio 1.27.35.28 and ROM 5.2.1620

The device has been successfully HARDSPL-ed and flashed new radio and rom.
Everything works except the 3G connectivity. When i choose manually GSM/EDGE band the data connection works without a problem. If Auto mode or UMTS band is enabled the device connects to the 3G network but can not establish data connection. It tries several times to bring up the data connection but it fails and after several attempts it loses network registration leaving me wit icon that shows ! sign on top . The same thing happens with all operators here ( T-Mobile Montenegro, Telenor and MTEL Serbia )
Can anybody give me a clue what is wrong.
hi dcetkovic.. your problem is same with mine.. until now no one can solve this problem.. until i gave up unsubcribe my internet broadband 3g.. is useless without 3g
Also haPpens to me with the radio of origin. Anybody knows some solution for this problem?
Problem 3g frequent disconnectios
I had the same problem with the version 1.27. The solution was to change the radio to version 1.58.21.23. The radio, sometimes, is not compatible with the operator. Test it and good luck!
i have changed both OS and Radio ROM to factory versions and still have the problem. It looks like a hardware fault to me.
Hello,
I think you must test with others roms radio. Visit this link: http://forum.xda-developers.com/showthread.php?t=461359&highlight=radio
And good luck!
hdsdpa
dcetkovic said:
The device has been successfully HARDSPL-ed and flashed new radio and rom.
Everything works except the 3G connectivity. When i choose manually GSM/EDGE band the data connection works without a problem. If Auto mode or UMTS band is enabled the device connects to the 3G network but can not establish data connection. It tries several times to bring up the data connection but it fails and after several attempts it loses network registration leaving me wit icon that shows ! sign on top . The same thing happens with all operators here ( T-Mobile Montenegro, Telenor and MTEL Serbia )
Can anybody give me a clue what is wrong.
Click to expand...
Click to collapse
hi there, is there a program that could set manually the GSM/EDGE band? my current radio is 1.27, it seems that it doest want to choose the HSDPA only. There's HSDPA signal on my location, i have an HTC Advantage and it shows that its connected thru (H) however on my shift. it only shows (E) Edge.

Had enough about the Radio

The radio is so erratic. Sometimes it is great. Othertimes it just can't get a connection. I haven't got my email all morning ... its realy annoying me!
typical issues- radio looses connection overnight - so I need to restart and its restored.
Going through a train tunnel the radio reception goes, but is then not connected the other side. Most of the times it works, but sometimes it just looses it!
I hope HTC get their finger out and release a new radio rom sharpish. Its really stopping me enjoying this otherwise brilliant device!
my radio is 3.43.25.19 and protocal is 61.20t.25.10U
colonel said:
my radio is 3.43.25.19 and protocal is 61.20t.25.10U
Click to expand...
Click to collapse
Just saw Asia ROM update for Diamond 2 on Singapore site with Radio version: 3.44.25.27
I find the same. Most of the time the radio will reconnect fine, but just occasionally it'll sit there helplessly for a long time showing no network.
I did find under phone settings to only connect to my network rather than "automatic" speeds up the transition between 3G and GPRS and vice versa - it's now almost instantaneous, before it could take a minute or so. You probably already have it set like that?
Pete_S said:
I find the same. Most of the time the radio will reconnect fine, but just occasionally it'll sit there helplessly for a long time showing no network.
I did find under phone settings to only connect to my network rather than "automatic" speeds up the transition between 3G and GPRS and vice versa - it's now almost instantaneous, before it could take a minute or so. You probably already have it set like that?
Click to expand...
Click to collapse
no i don't, but I will try. thanks for the tip
also worth zeroing on the bands in your country. I have set up gsm 900+1800 and umts 900+2100
when we get hacked ROM I will just do gsm 900+1800 and umts 2100 which is correct for the UK
Its probably worth doing the above in any case, as it won't be seeking so much and therefore saving battery
also worth zeroing on the bands in your country. I have set up gsm 900+1800 and umts 900+2100
when we get hacked ROM I will just do gsm 900+1800 and umts 2100 which is correct for the UK
Click to expand...
Click to collapse
Thanks, i'll try that too.
I havent' tried it on the train, but I think this really does work. I suddenly have reliable data in my office block
Complain to HTC
I complained to HTC earlier today about the reception. If enough people do it, they'll have to do something!!
This is what I received from HTC about the Radio. - Indifference!!!!!
Thanks for your email. I cannot comment on if we have had any more comtact regarding poor reception, as yours is only the second email i have seen from anyone saying they have a problem with reception. As you can imagine, 2 occurences does not constitue a known issue. However, If you could provide us with the IMEI or Serial number of your device and also the ROM and Radio version from settings> all settings> system> device information, we will be monitoring just in case we receive more emails. In the mean time, i think the best course of action would be to contact the retailer and ask for a replacement for what sounds like a faulty device. best regards, HTC Europe Support
I've put the network selection back on "auto" after a particularly bad case of the phone searching for and not finding my network despite being in a strong signal area with the network selection set to manual. It came up with the "select a network" box and wouldn't seemingly carry on without my intervention. Which is useless if the phone's in your pocket. The moment I changed the setting back to "automatic" it searched for and found my network.
I only had this problem after I forgot and left the data channel connection on. Usually I switch it off after using it. So perhaps this network loss / searching bug is related to leaving the data channel open? No consolation for those who need to do this.
I have now set the phone to use only the UK bands, and will see how this goes.
It really seems we are up against a) a weak radio module b) big bugs in the radio firmware.

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