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Dear technically gifted people,
I have recently purchased the Wizard (i-mate k-jam) and have the following three problems:
1. Sometimes the phone does not receive calls and they go directly to voicemail, even though I am in an area where all mobiles work and the phone shows full reception.
2. If reset the device or turn on/off flight mode, the device has no problem connecting to GPRS/EDGE (provider MTS/Russia), but after some time it drops the connection and cannot reconnect until next reset.
3. Flight mode switch does not always work. Have to turn it on 2-3 times before phone responds and turns the phone back on.
If someone would be kind enough to help me resolve them I would greatly appreciate it. I recently upgraded to the new ROM (the one posted on the clubimate site in March) but it did not seem to help the issue.
Regards,
egrib
i have the same problem! Have to turn it off and then back on again, very annoying!
Do you think turning the voicemail off will sort it out? I dont really have any need for it anyway
could be SIM related.
My wizard showed the same instability. I needed to reboot every night otherwise i would get dropped calls (straight to voice mail) no GRPS access, and the charging wouldn't work. I changed roms etc. What finally did the trick for me is I got my service provider (FIDO in canada) to change my SIM from the 2001 card i had to a current one.
It seems to have done the trick.
From my own experience and from seeing all the posts on this forum it seems like this device is full of bugs and is just not worth the time and money.
As there a similar device out there that actually works and people have no problem using?
Thanks.
egrib said:
1. Sometimes the phone does not receive calls and they go directly to voicemail, even though I am in an area where all mobiles work and the phone shows full reception.
Click to expand...
Click to collapse
did you have the same problem with previous handsets in the same area? such problem are quite often caused by network issues not mobile and you should try reporting it to your operator's customer care. however, if such problem persist only on wizard and in various areas, then it's probably problem with mobile...
egrib said:
2. If reset the device or turn on/off flight mode, the device has no problem connecting to GPRS/EDGE (provider MTS/Russia), but after some time it drops the connection and cannot reconnect until next reset.
Click to expand...
Click to collapse
you mean [G] icon on top of screen? well, this is a feature of this model, that after some time it detaches from GPRS, so [G] icon disappears. however if you'll try to connect to internet through GPRS, it will attach again and connect, so i wouldn't be so much concerned about it.
egrib said:
3. Flight mode switch does not always work. Have to turn it on 2-3 times before phone responds and turns the phone back on.
Click to expand...
Click to collapse
i've had the same problem, but i noticed that it just needs a bit of time for phone to switch on again. so when you're trying to switch off flight mode, tap it once and wait a bit. it should turn on after a while. at least it works this way with me..
eva_d,
I think you are entirely correct on point 3 - flight mode switch takes some time.
As for the other points, I don't think they are as easily resolved. When the phone does not receive phone calls (and calls go straight to voicemail) it does not seem to be a carrier problem since 1. i never had this problem with the same card in a different mobile and 2. once it stops receiving calls it continues to do so until a reset, regardless of where I am located.
The GPRS issue - i know what you are referring to with regards to the [G] icon (I have it all the time) but once i receive or make a phone call, I cannot reconnect to the internet until i reset the device. Also not a carrier problem. This seems to be an issue with all MTS users in Russia. So far unresolved.
Anyone other ideas anyone? Thanks
It's well known issue (GPRS on MTS Moscow; is your mts is in Moscow?). It was fixed in new ROM, that just was released week ago. Russian version is available.
eva_d said:
egrib said:
1. Sometimes the phone does not receive calls and they go directly to voicemail, even though I am in an area where all mobiles work and the phone shows full reception.
Click to expand...
Click to collapse
did you have the same problem with previous handsets in the same area? such problem are quite often caused by network issues not mobile and you should try reporting it to your operator's customer care. however, if such problem persist only on wizard and in various areas, then it's probably problem with mobile....
Click to expand...
Click to collapse
I have a kindoff similar problem. Just got my Qtek yesterday and I tried latching to cingular. What happens is when I switch on the phone, it takes forever to latch to the network. I see the
Y.
Y..
Y... going on for ever. In my old phone, just switch it on and there it connects to cingular. I tried doing the manual/automatic network selection and everything but it just takes too much of time to latch on. It finally latches (thank god !) but still its annoying. But once connected, itnever drops off or goes to voice mail. Looks like it has a starting problem
Also, reception wise, it shows less bars then my old phone when I am sitting on the same chair :?
Did anybody face the same problem, or am I the blessed one. Any tweaks or something that can be done ?
I also have problems sometimes connecting to edge/gprs, I think it might have something to do with handshaking accross towers.
I noticed that this happens when I enable TOMTOMTRAFFIC, it will get the traffic the first time I start tomtom, then 15 minutes into driving when it trys to get a traffic update it will not connect to gprs, it will keep dialing and eventually disconnect. Then after a rest, it will connect again but again after about 15 minutes of driving it has the same problem. Pretty annoying.
Vishny,
I am indeed on Moscow MTS. You mention a new ROM that fixes this - are you referring to the ROM that came out early this year (2.16.9.1) ? If so, I did the upgrade (english version) and it did not seem to help. If there is something more recent that fixes the MTS problem, please let me know where I can download it.
Also, are you having and problems with receiving calls? Thanks.
egrib said:
Vishny,
I am indeed on Moscow MTS. You mention a new ROM that fixes this - are you referring to the ROM that came out early this year (2.16.9.1) ? If so, I did the upgrade (english version) and it did not seem to help. If there is something more recent that fixes the MTS problem, please let me know where I can download it.
Also, are you having and problems with receiving calls? Thanks.
Click to expand...
Click to collapse
It's 2.18 ROM with new 2.20.11 radio rom. I'm having no problems with calls or GPRS. Now my device is perfect, I love it. Just try it, you can find it here:
ftp://ftp.xda-developers.com/Uploads/HTC Wizard/ROMS/
Thanks vishny - if that will indeed solve the problem.
Few questions, are there any other places to get the files (i am having problems logging into the one you provided).
Also, is this only for a Russian OS or do they have the same for english? Thanks
Guys, could you please advise me how can I download from FTP? It asks for username & password, but my profile's username and passwords wont work.
fmraven said:
Guys, could you please advise me how can I download from FTP? It asks for username & password, but my profile's username and passwords wont work.
Click to expand...
Click to collapse
user/pass: xda/xda
eva_d said:
fmraven said:
Guys, could you please advise me how can I download from FTP? It asks for username & password, but my profile's username and passwords wont work.
Click to expand...
Click to collapse
user/pass: xda/xda
Click to expand...
Click to collapse
Great! Thanx a lot.
And another question. Would QTEK ROM work for K-Jam, or should I wait for official K-Jam ROM update?
fmraven said:
And another question. Would QTEK ROM work for K-Jam, or should I wait for official K-Jam ROM update?
Click to expand...
Click to collapse
it will work, but you need to unlock your device first with Lokiwiz or aWizard. search forums, there are lots of posts regarding this.
Thanks for all the help.
One question to Vishny and others - i see the new 2.18 rom update in Russian - does anyone have any idea where I can get it in english?
I assume the GPRS/calls problem lies in the Radio ROM - so another question may be how can i keep my english ROM but update my Radio ROM to one that would work with MTS in Russia?
Many thanks
egrib said:
Thanks for all the help.
One question to Vishny and others - i see the new 2.18 rom update in Russian - does anyone have any idea where I can get it in english?
I assume the GPRS/calls problem lies in the Radio ROM - so another question may be how can i keep my english ROM but update my Radio ROM to one that would work with MTS in Russia?
Many thanks
Click to expand...
Click to collapse
There is no english 2.18 rom, because 2.18 solves specific problem with one of operators in Moscow. Some guys make hack, they flash 2.16 i-mate or 2.17 qtek english roms, then flash 2.20.11 "russian" radio rom and then install additional RadioDriver_GPRSStall_Wizard_Mar24.CAB they extract from extrom of 2.18 russian rom.
Look at this:
http://www.qtek-mobile.ru/forum/viewtopic.php?t=2131&start=30
vishny,
i installed the new radio rom onto the latest english i-mate rom and thw wizard finally worked with MTS in Russia without any problems. For that I thank you.
Unfortunately now for some reason once in a while the screen goes dark (as if the device is sleeping, the light is still blinking) and the only thing I can do is reset the device. Any ideas?
Thanks
p.s. why does this thing always have problems and as soon as i solve one, another arises :?
Can someone help me understand if this is a general JJ issue, or a function of the AKU 3.2 Rom Update 1.90.96 (Radio 1.13.00). It's not identified in that thread:
Many of my JJ issues have been solved by turning off UMTS until I need it. My battery improvement is negligible (when measuring mA consumption), but the following used to manifest due to the phone's inability to switch between GSM and UMTS elegantly:
Calls frequently go to v.mail
Dialing results in 'Dialing...' message with no connection - or even worse I connect and other party can hear me even tho I believe it's not connected
Dialing results in 'This operation not allowed' or something like that
Several other issues I forget
All this went away when I turned off UMTS. My understanding is that UMTS and GSM are completely different functions, and the phone sees a UMTS signal and tries to switch to that. Unfortunately it's too weak and the phone does not know to give up and go back to GSM/GPRS. After around 15mins of battling, everything goes tits-up until I reset.
Is this something that everyone with moderate 3G/UMTS coverage experiences? Or is this a ROM/Radio version issue?
I have a very poor UMTS reception in my house and have the same problems. I have tried different radio roms. My current solution is just using GSM at my home and only UMTS at my workplace..
my too...
my case is similar. I had with radio 1.09 and now with 1.13. looks is a problem when you move between zones with umts and other only gprs and the phone gets crazy. I think is related new speed available form umts (1,8 and now 3.2) that are producing special situation in the device.
Thaks guys - more helpful than you know: I was considering a re-flash, and my JJ is SOOO customised I would have written off a week getting it all back into shape. The HSDPA change may also explain why I didn't have this issue with the first JJ in country in January, but am definitely having issues now.
craigiecraigie4 said:
Thaks guys - more helpful than you know: I was considering a re-flash, and my JJ is SOOO customised I would have written off a week getting it all back into shape. The HSDPA change may also explain why I didn't have this issue with the first JJ in country in January, but am definitely having issues now.
Click to expand...
Click to collapse
If you reflash only your radio, you wont loose your data..
After doing a Hard Flash for the first time from 1.43 to 148 and rebooting my HD2. Within several minutes my reception speed would change from 3G to GPRS and back again while on the go, this has never happen before and was wondering is there a way to have consistent 3G speed/reception or was there a fault during my flash?
Any suggestions or help would most helpful.
HD2 on T-Mobile UK.
umbrellaman08 said:
After doing a Hard Flash for the first time from 1.43 to 148 and rebooting my HD2. Within several minutes my reception speed would change from 3G to GPRS and back again while on the go, this has never happen before and was wondering is there a way to have consistent 3G speed/reception or was there a fault during my flash?
Any suggestions or help would most helpful.
HD2 on T-Mobile UK.
Click to expand...
Click to collapse
Did you flash with SSPL / Gold card or with the HDSPL in-tacked?
EITHER WAY:
Press Phone Key>Options>GSM/UMTS Services:
Here select Band....then, "Get Settings"
The first tab should say GSM. Drop down menu option you want is WCDMA. This will force 3G all the time. However I don't recommend this setting as this will consume more battery.
Leaving it in 2G saves more battery and voice quality doesn't change....
hi,
maybe you flashed the radio part of the rom also, when you flash from 1.43 to 1.48?. im not sure, but you should check out this htc update, and try it. its a replacement for the radio portion of your rom only, and maybe fixing your problems. my singnal strengh has stoped to swing between full and no bars, and i have full bars most of the time, with this update.
regards mad.
madbird said:
hi,
maybe you flashed the radio part of the rom also, when you flash from 1.43 to 1.48?. im not sure, but you should read here about this htc update a try. its a replacement for the radio portin of your rom only, and maybe fixing your problems.
regards mad.
Click to expand...
Click to collapse
Stock Roms include the Radio so if there was a change between one stock and the other then a change will occur...
There is nothing wrong with the radio band switching automatically though so unless you have bad reception, everything should be fine.
band27 said:
EITHER WAY:
Press Phone Key>Options>GSM/UMTS Services:
Here select Band....then, "Get Settings"
The first tab should say GSM. Drop down menu option you want is WCDMA. This will force 3G all the time. However I don't recommend this setting as this will consume more battery.
Leaving it in 2G saves more battery and voice quality doesn't change....
Click to expand...
Click to collapse
You're a star, it works now plus it has enabled some app's that wasn't connecting before like the twitter app. Many thanks for your help guys!
umbrellaman08 said:
You're a star, it works now plus it has enabled some app's that wasn't connecting before like the twitter app. Many thanks for your help guys!
Click to expand...
Click to collapse
You are so welcome, glad to know I could help..
band27 said:
Stock Roms include the Radio so if there was a change between one stock and the other then a change will occur...
There is nothing wrong with the radio band switching automatically though so unless you have bad reception, everything should be fine.
Click to expand...
Click to collapse
ah ok so im in 'the wrong film' . and again i learnd somthing from this great forum.
mad
Hi guys, i know this is a common problem amongst some of us, there are several threads discussing the connection drops but please there must be someone out there who knows something about it.
Basically with HSDPA enabled, the connection will last a random period of time before disconnecting by itself and displaying: cannot connect for an unknown reason.
When HSDPA is turned off, only 3G is used, although this works fine, it is fairly slower.
I am on T-Mobile UK, I have phoned their technical support, we have established it is not the sim card but the phone itself and have tried a variety of steps to solve this, for example receiving band settings for WCDMA, this has not fixed the problem.
I have tried changing the username and password combinations and have tried every combination of every advanced network option. I have used the T-Mobile stock rom 1.43, official HTC ROM 1.66, duttys hg, energyROM, artemis 5.0 and artemis 5.5 (would recommend btw) using MTTY before every flash, and every single different radio combination.
Myself, and many people here would be very grateful for any help posted.
Thanks in advance
Why don't you try Settings > Connections > Advanced network > GPRS tab > change from PAP to CHAP.. and reset... or viceversa.. that helped for me..
Thanks for the post, i've tried all that i've tried all advanced settings, at most they last for a day or so but after a while the connection dropouts seem to worsen
Ok ive just gotten off the phone for the third time with the technical support
basically what they've said is that the hsdpa WILL disconnect because the mobile towers simply can't handle the traffic.
He said in his honest opinion I should disable it because it simply won't work well and there is no fix.
Taking the piss juuuuust a little bit
Mine on t-mobile uk will show H, but usually drop down to 3G. It won't give me an error when it drops down though.
It sounds like its not transferring from H to 3G.
To be honest, i was unaware t-mobile ran HSDPA till I got my HD2 (never showed on my BB).
mine switches between 3G and H too, this happens when the connection is being used (for example loading a web page) when the job is finished (page has finished loading) it turns back to 3G right?
are you saying that your connection never disconnects?
may i ask which radio and rom you are using?
thanks!
For my personal experience, I have for over a month, on versions 1.48, 1.66 by HTC, artemis versions, versions of other French chefs. had no problems,
Login Exchange push 24/24 without any cuts, I solicited the network with opera I passed automatically 3g H, and since February it to completely fall with the problems that everyone encounters (lost connection for several minutes , unable to connect to 3G without hard reset)
to remove the sim chip, I try with another chip of the same operator, another chip from another operator, the problem is still there.
For several days I have also continued a Touch HD, it faces no problems, no problems in connection 24/24.
In short, impossible to challenge any operator, any base station, any sim card.
It is then that the problem come from HD2:
-Software: We all try every combination of rom and radio rom possible.
It is the hardware, maybe the chip integrated into a concern for design, manufacturing concerns on some series, may be dysfunctional due to incompatibilitée between several chips of the phone, short, HTC should look into the problem.
cgrec92 said:
mine switches between 3G and H too, this happens when the connection is being used (for example loading a web page) when the job is finished (page has finished loading) it turns back to 3G right?
are you saying that your connection never disconnects?
may i ask which radio and rom you are using?
thanks!
Click to expand...
Click to collapse
correct, it never disconnects.
It will switch seemlessly between them, when using or not using.
same one it came with. O2 HD2.
ROM 1.43.206.4 (70315) WWE
RADIO 2.04.50.22_2
I've also been struggling with this problem ever since I got my HD2 three weeks ago. However it seems like only a few people experience this.
My case is exactly like cgrec92 described. I'm on a 3.5G network in Denmark (3 Mobile), the phone shows the 3G connection at all times. When things do work and I use Opera/weather/Twitter/email etc, the symbol changes to H and I know the data connection is functioning. I can be using this for a whole hour without any problems.
However, if I put the phone down for a while and then pick it up again to use one of its data services, very often it does not connect to 3.5G (or H) anymore. It will still show the 3G icon on the screen, but there's no data connection. Then I go to Connection Manager and I can see that data connection shows as Off - and after a few seconds it goes back to On by itself That does not mean the problem is solved, as the phone still fails to establish any data connection. What I need to do then is manually turn off data connection and re-enable it again, which makes the 3G symbol immediately change to H. Then everything starts working again - until the next time it stops working...
I contacted the HTC customer service and they said it might be a driver-related issue, recommended a hard reset. I did that and for a few hours I thought it solved the problem, but no, data connection still disconnects by itself.
I spoke to 3 Mobile's technical service and they told me to update my software, which I had already done previously (I'm running stock 1.66 ROM Danish). They also said they never received any such complains about the HD2.
Like cgrec92 I've also played with all kinds of network/band settings, but it did not make any difference.
***
One question: isn't the phone supposed to automatically connect via EDGE when it cannot connect via HSDPA? Because in my case it will only establish data connection via H, never EDGE.
Any advice is greatly appreciated!
My take on this FWIW
It's not the phone!
It's the radio ROM installed.
I live in an an area where T-mobile say I can't get HSDPA.
However, I know that I can. How? Because 3 network uses the same local cell and transmitter as T-mobile and their signal will rip your eyes out!!!!!!!!!
All information obtained from a good friend of mine who works for BT, who, service manage the cells for the networks.
Plus, in this location, the cell traffic is then handled by BTs digiatal backbone which takes it who knows where after that.
So I have a very isolated situation in which I know there is a decent HSDPA signal, but I have had trouble with drop outs on my two previous phones (Nokis 5800 and HTC Touch Diamond 2) and originally on my two T-mobile mobile broadband feeds using Huawei E220 cell network modems.
All fixed when I finally found the right Radio and flashed it on the phones and unlocked and flashed the latest modem firmware.
My broadband connections are always on and never drop out and my HSDPA signal on my HD2 is through the roof!
To further emphasise the point all the equipment is used (when home based) behind solar glass which is notorious for blocking mobile phone signals.
Land on the best one and you will get incresed battery life as well.
Bottom line is try the latest radios (2.08.50.08_02 in my case) and I think you may be surprised at the results.
Current result of speed test 09.31 hours
ADSLSPEED.COM | Speed Test
3 minutes later
ADSLSPEED.COM | Speed Test
I have the same problem with the connection dropping. What I did to make it work was to disable HDSPA and putting GPRS to CHAP instead of PAP, and so far I have no problems at all
Thanks for the reply and tips. I also did the same earlier today, except that I did not change PAP to CHAP :O. I was waiting until tomorrow before I posted any results, but I gotta say so far the connection has been stable just like yours.
I also called HTC's customer service in Denmark and the fellow I spoke to was very helpful but he said he has never heard about such problems. He sent me updated network settings via sms, but it did not fix the problem.
I mean, only some users around the world suffer from this problem, right? So what is it that's wrong with our devices? Is it a production fault? If I exchange my phone for a brand new one maybe I won't be unlucky again? When 3 DK finally told you the problem was unfixable, did they mention other users with the same issue? Did they ever offer to replace your phone?
DORMIU said:
Thanks for the reply and tips. I also did the same earlier today, except that I did not change PAP to CHAP :O. I was waiting until tomorrow before I posted any results, but I gotta say so far the connection has been stable just like yours.
I also called HTC's customer service in Denmark and the fellow I spoke to was very helpful but he said he has never heard about such problems. He sent me updated network settings via sms, but it did not fix the problem.
I mean, only some users around the world suffer from this problem, right? So what is it that's wrong with our devices? Is it a production fault? If I exchange my phone for a brand new one maybe I won't be unlucky again? When 3 DK finally told you the problem was unfixable, did they mention other users with the same issue? Did they ever offer to replace your phone?
Click to expand...
Click to collapse
Erm!
It's your radio!
But, I think I did say that in a previous post.
You had a helpful fellow who sent you updated settings?
And he thought that was going to fix your problem?
That was helpful!
It's your radio!
The technicalities are beyond a customer assistant at the end of a phone. They work from a script.
I'll send you the settings.
Have you done this?
Have you done that ?
Never heard of anyone else with your problem!
It's your radio!
T-mobile uses PAP protocol (at least they do here in the UK) and it's a handshake protocol so changing that won't really do anything to the signal definition.
You have it or you don't.
It's your radio!
There is no "production fault".
You are not "lucky" or "unlucky".
You are in an area where you will suffer from this because of the ???????
THE RADIO!
I think I have made my point.
If it turns out that you don't have a radio issue then please feel free to admonish me.
Until then----------
It's your radio!
well I don't mean to sound rude but do you SERIOUSLY think we haven't tried that? ive tried every possible radio available here and every different rom, so excuse us for trying new things.im glad your not having any troubles yourself because it is really annoying
perhaps you could post us your rom and radio?
I don't suppose you could post us your settings in advanced network?
did you use the connection setup?
thanks for your help
Yes, I was about to mention something similar. I haven't tried combining different ROMS & Radios myself, but I know people like cgrec92 who have with no good results.
And if it is the radio, then every 3 Denmark user like me would be experiencing the same problem, correct? I don't think that's the case. Actually when you read the forums you will find users from different countries with this problem, and they/we are not the only ones with a certain combination of ROM/Radio.
So yes, by disabling HDSPA I finally managed to have a stable data connection (but no 3.5G, obviously). At this point no one seems to know the cause of this issue, but I suppose it's naive to expect a future ROM to solve it, after all it's not a widespread problem. Is HTC even working on it? Are we sure it's not our devices that are faulty?
I honestly have no idea, but I cannot just accept this problem and live with it after all the money I put into this phone. That's why I brought up the possibility of having it exchanged for a brand new one in hopes that it will not have this problem.
Any ideas?
cgrec92 said:
well I don't mean to sound rude but do you SERIOUSLY think we haven't tried that? ive tried every possible radio available here and every different rom, so excuse us for trying new things.im glad your not having any troubles yourself because it is really annoying
perhaps you could post us your rom and radio?
I don't suppose you could post us your settings in advanced network?
did you use the connection setup?
thanks for your help
Click to expand...
Click to collapse
The post by pa49 was to DORMIU.
I'll pm you my t-mobile settings.
And I cant use the connection setup, being an O2 HD2, it only allows selection of O2.
cgrec92 said:
well I don't mean to sound rude but do you SERIOUSLY think we haven't tried that? ive tried every possible radio available here and every different rom, so excuse us for trying new things.im glad your not having any troubles yourself because it is really annoying
perhaps you could post us your rom and radio?
I don't suppose you could post us your settings in advanced network?
did you use the connection setup?
thanks for your help
Click to expand...
Click to collapse
I referred to my radio in my previous post -20.08.50.08_02.
My OS ROM is Leo Lite 3.
Connection setup used and no further settings.
My explanation for this is the fringe nature of the received signal.
The radio its constantly 'hunting' for a signal and the radio software has difficulty in locking on.
BTW OS ROM and settings ready don't affect the efficiency of the radio signal.
MidnightDraven said:
The post by pa49 was to DORMIU.
I'll pm you my t-mobile settings.
And I cant use the connection setup, being an O2 HD2, it only allows selection of O2.
Click to expand...
Click to collapse
I appreciate the help, but he doesn't seem to understand the issue here. It's not that we have low connection, or that we cannot connect to the 3.5G network. The problem is that the phone's data connection will automatically disconnect even when we are in an area with full 3.5G signal. The phone will connect for a while and then, moments later, in the same spot and with full signal, data connection is terminated. So I just can't see how the radio has anything to do with that, especially when there are hundreds of other users out there with the same ROM & Radio as us and in the same network. And yet they do not experience this problem.
Ive have similar issues but it depends where i am it appears that some towers its ok where others its not!
mo
DORMIU said:
I appreciate the help, but he doesn't seem to understand the issue here. It's not that we have low connection, or that we cannot connect to the 3.5G network. The problem is that the phone's data connection will automatically disconnect even when we are in an area with full 3.5G signal. The phone will connect for a while and then, moments later, in the same spot and with full signal, data connection is terminated. So I just can't see how the radio has anything to do with that, especially when there are hundreds of other users out there with the
same ROM & Radio as us and in the same
network. And yet they do not experience this problem.
Click to expand...
Click to collapse
The radio differentiates between all the different levels and types of signal and it depends on how exact it interprets the signal. They are supposedly optimized before release and then re optimized with each newly released version. Network operators then have their own network parameters and again the radio has to accommodate this as well. One radio will never satisfy all these criteria and some of you will be in the wrong place at the wrong time on the wrong network with the least effective radio.
I can assure you that I most certainly do understand the problem and that is why, in my own case, I have resolved it.
Hi there,
First of all, I ran an extensive search over google and also on XDA forums before posting this.
My S4 (I9500) is experiencing random data connection drop problem for some time now. It starts with no data transfer (upload/download arrows not being active), then connection goes from H+ to H, then to 3G, then drops, back to H and continues until I turn off and on MOBILE DATA from toggle buttons. Then it works normal for some random time, then it happens again. Sometimes an hour, sometimes after 5 minutes.
I found this thread , however trying the workaround there by entering the provided code, I get "Connection problem or invalid MMI code". So that fix is not working either. I tried to go in service mode > debug screen > nas control and change revision to Release 5, but it says NOT SUPPORT. Haven't tried the other releases since I dont want to mess with it. I am also aware that the workaround in the above thread is for S2.
When this happens, it is just mobile data, there is no problem with network signal.
Has anyone else experienced something like that on their S4s?
The method you tried using is probably outdated and for a different phone.
Are you sure it isn't your provider?
Did you try another modem?
Lennyz1988 said:
The method you tried using is probably outdated and for a different phone.
Are you sure it isn't your provider?
Did you try another modem?
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Nope.. I am working for a service provider company. Other people with iPhones in the same location as I am, are not experiencing the same thing. I heard similar problems with other S4 users, but they dont know any workaround either.
I tried both auto connect and WCDMA only options as well. Doesnt make a difference. My S4 doesnt support LTE, so I only have 3 options, third as GSM only, which I don't think it would be a solution.
Only temporarily solution so far, is turning mobile data off and on, which lasts from 5 minutes to 1-2 hours.
Btw my android version is 4.4.2