Hi,
I have bought a jiayu g4 basic phone, I'm having problems getting the 3G to work, I have an O2 sim in and a Vodafone sim in it, none of them will work on 3G, I have tried switching from one to the other in sim management but it will still not connect to the internet, 3G is enabled,
sorry if this post is in the wrong place but I couldn't find anywhere else to put it,
Please help, Chris
Similar problem about the signal of 3G
Hello,
I bought a Jiayu g4 basic phone a few weeks ago. Recently, I have been having a similar problem about the signal of 3G with the jiayu g4.
This weekend I traveled to another state and all the time the jiayu was with no signal.
I didn't found a forum or website of the brand jiayu where I could post my doubts.
I hope we can solve our problems with help with friends of XDA. :highfive:
Best Regards,
Delfim
chriswiggy said:
Hi,
I have bought a jiayu g4 basic phone, I'm having problems getting the 3G to work, I have an O2 sim in and a Vodafone sim in it, none of them will work on 3G, I have tried switching from one to the other in sim management but it will still not connect to the internet, 3G is enabled,
sorry if this post is in the wrong place but I couldn't find anywhere else to put it,
Please help, Chris
Click to expand...
Click to collapse
You have correct APN settings?
deltavivo said:
Hello,
I bought a Jiayu g4 basic phone a few weeks ago. Recently, I have been having a similar problem about the signal of 3G with the jiayu g4.
This weekend I traveled to another state and all the time the jiayu was with no signal.
I didn't found a forum or website of the brand jiayu where I could post my doubts.
I hope we can solve our problems with help with friends of XDA. :highfive:
Best Regards,
Delfim
Click to expand...
Click to collapse
pls check on the manual guide does it support ur baseband ?? there is bunch of baseband version , the common will be WCDMA, TD-SCDMA or CDMA ...
Hello,
I've bought a G4 advanced and i'm facing the same problem. Vodafone PT doesnt work but Optimus PT works.
i have noticed that the icon changes when i activate the 3G and data connection por the Optimus but i cant test it because i do not have a data plan.
Does anyone know with VOdafone doesnt work?
thanks
This is software related error. Rom's having problems on this phone. Has anyone tried a good working rom for the g4t basic? I have the latest original rom and have gsm/3g problem. For seconds it finds the sim and then says only for emergency calls showing the (x) sign. Also i have sudden massive battery drains whenever using whatever app (i scanned with avast and from fully charged it shut down in a minute). This is also rom related cause after a reboot it showed the real battery again. So the battery drain is fake.
Any solutions? Any good rom?
atmosferico said:
Hello,
I've bought a G4 advanced and i'm facing the same problem. Vodafone PT doesnt work but Optimus PT works.
i have noticed that the icon changes when i activate the 3G and data connection por the Optimus but i cant test it because i do not have a data plan.
Does anyone know with VOdafone doesnt work?
thanks
Click to expand...
Click to collapse
Have you already resolve this problem? (já resolveu o problema? estou com a mesma situação com o sim da Vodafone no G4)
bigger_pt said:
Have you already resolve this problem? (já resolveu o problema? estou com a mesma situação com o sim da Vodafone no G4)
Click to expand...
Click to collapse
Conseguiu resolver o problema? Abraços
Related
Hi all!
I just wanted to know if any of you have tried to use a "cloned" SIM card (with several phone numbers in it, refer to SIM-EMU ) in a XDA or in any PPC Phone Edition device, and if it works fine, because it depends on this for me to decide to buy a PPC Phone Edition or not. If not, you can always try to clone your first sim card, it is quite easy, if you want to try it, ask me and I'll tell you the hard & soft you need :wink: .
Thanks in advance.
PD: Sorry if there are some mistakes, I'm from Spain
Hola:
yo estoy interesado en probar pero ¿que necesito para clonar las tarjetas?
Un saludo
I went to that site, if it really is easy, i would be interested to know, I have senn a couple of sim clone hardware/software solutions that claim to produce a supersim with up to 8 numbers on it, you can switch between the numbers without switching off, however it seems that at least one of them only works with orange sim cards pre 2001 and WILL NOT work with the present sims used by uk providers. More info would be appreciated if it does really work, the info on that site went right over my head so please keep it simple for simple people such as myself. :?
work fine
im using sim-emu on xda from 1 year in italy and work fine!
but only for first setting of a new programmed sim you must place in another phone
Thanks rsivan !!! Those are good news . So you can select the different phone numbers on the "Cloned SIM" on the XDA without restarting it? Or are you only using one phone number?
Thank you again! :wink:
Re: Cloned SIM on a PPC Phone Edition ?¿
XaCoSo said:
Hi all!
I just wanted to know if any of you have tried to use a "cloned" SIM card (with several phone numbers in it, refer to SIM-EMU ) in a XDA or in any PPC Phone Edition device, and if it works fine, because it depends on this for me to decide to buy a PPC Phone Edition or not. If not, you can always try to clone your first sim card, it is quite easy, if you want to try it, ask me and I'll tell you the hard & soft you need :wink: .
Thanks in advance.
PD: Sorry if there are some mistakes, I'm from Spain
Click to expand...
Click to collapse
I'm using a Cloned SIM with my XDA 2 and works fine!
clone sim card
I have two voice Gsm numbers in one simcard and I used to change from one to another using simtool kit . but then I upgrade my i-mate Rom(from carrier device) to new version of carrier device . then the prb starts. now if I want to move from one number to the other I ahave to do a soft rest after I choose the number. I cannot navigate between the numbers like I used to. I changed my Rom to T-mobile 1.6 thinking it will solve the prb but the prb still remains. can any body help. Beside I am intersted in knowing how to clone sims
Greetings Friends,
I have been using a HTC P3400( Old Gene) for last 2 years. As a member here of the Gene forum( although an infrequent one) i have been flashing the various ROMs made my many talented people here. Please bear with me if this post seems inordinately long but i want to share complete details of the problem i am facing.
My peculiar problem started when i flashed my Gene with Krazy_about_technology's ROM SumitsProUsers6.5_v2_OldGene.exe. After a couple of days of using it, my Gene would perenially be searching the network to connect to it, without any success. After numerous resets, hard resets, running ghost images etc and unable to resolve the problem, i thought this was an issue with my Vodafone SIM. I got it replaced and the problem still persisted. Post that i flashed the ROM with numerous other ROMs( Mostly Krazys, I find them very useful- Thanks Krazy for sharing your beautiful works), but the problem would just not resolve. The phone would always show searching a network to connect. I could not use SMS, EDGE or any other feature of my service provider.
The issue threw up another interesting find when i was experimenting with various other GSM SIMs. I used an Airtel SIM and the Gene would work good. Then i tried with a BPL Mobile SIM and it works just as good. But the minute i insert a Vodafone SIM, mine or others, it would indicate searching a network, I would not be able to make or receive calls or sms or access any other feature.
I took the handset to a Vodafone center and even they were flummoxed. They couldnt find a solution. They used my SIM card on different handsets and it works.
They thought my handset was somehow only disabling/ blocking only a Vodafone network. They advised me to get in touch with HTC helpline.
I called them and after lenghty discussions, they confirmed this was the first time they had come across such an issue. They asked me to visit their nearest service center. I did . The result was the same. Even the service centre was flummoxed and asked me to see what would happen if i downgraded to WM5.
I did just that with a HTC stock WM5 ROM provided by Vukile in the forums. and gradually upgraded to Krazy's WM 6.1 v 2.5
The problem still persists. I have been asked to visit the service centre once they run some tests or do some research on the problem themselves on a WM 6.1 ROM
In the meantime, I am currently using my Gene with an Airtel SIM and its working perfectly. It just wont accept a Vodafone network. I am using my Vodafone SIM in a Nokia handset.
Could it be an issue with the Radio ROM version? If so, why did it work with other ROMs and still works with Airtel and BPL mobile SIMs?
Is it really true that somehow, my Gene is only blocking Vodafone networks???
Needless to add, i am not a newbie to the world of Flashing and have learnt my way through friends in the forum like Munrus, Ababrekar, Vukile, NJackal, Chayn( He used to make some great ROMs) etc for the past 2 years.
This problem has completely perplexed me and all the techies i know.
I am posting this here in the hope that some brainy chaps might just be able to figure this out.
Thanks for reading the post and for any remedy you can send my way.
Rest assured, i will be keeping this post updated if the service centre is able to come up with a solution.
Cheers!
Ramon
ONBL 1.17.0000
SPL 1.10.Olip
OS 1.17.0000
Radio 2.71.90
Yes, there definately seems to be some issue with your Radio ROM. Its an older version anyways, mine is 2.79.90. Radio upgrading is simple, but finding the radio or dumping it from a phone is something i dont know.
I think the problem your phone is having is with one type of freqeuncy. In India, 3 frequencies are available : GSM900, GSM1800, and GSM1900. Most network use GSM1800 in most places and GSM900 in some places While Vodafone uses GSM900 in most places. I guess that is the reason why Vodafone sims are giving problem to you.
Two more things you can try are : If possible, using it in national roaming mode in some other state and Using some other number Vodafone sim. Try if it works. The site given below will give you an idea of what networks use what frequencies where :
http://www.gsmworld.com/roaming/gsminfo/cou_in.shtml
Click to expand...
Click to collapse
Otherwise best is to let service center guys figure it out. They may replace the radio module completly or upgrade the Radio ROM, or Who knows, the whole phone itself
try below links..
Try links below may be this will help you to upgrade your radio version
http://forum.xda-developers.com/showthread.php?t=472169&highlight=radio+upgrade
http://forum.xda-developers.com/showthread.php?t=491500&highlight=radio+upgrade
http://forum.xda-developers.com/showthread.php?t=471308&highlight=radio+upgrade
krazy_about_technology said:
Yes, there definately seems to be some issue with your Radio ROM.......the whole phone itself
Click to expand...
Click to collapse
Yes, You seem to be right. Vodafone at GSM900 in Mumbai seems the odd man out. Maybe the Radio ROM is not working for GSM 900 and hence affecting only Vodafone connections.
Still does it explain why the same Radio ROM worked for all this while over so many flashes and failed to connect to one particular frequency suddenly?
I have been trying to get a Radio ROM dump to 2.79.90 to upgrade. No luck yet.
My phone is out of warranty a long time ago. So no chance of getting the whole phone replaced without burning my pockets!!!
Thanks for your inputs Krazy!
Cheers!
bhushangahire said:
Try links below may be this will help ....
Click to expand...
Click to collapse
Many Thanks Bhushan for the links!!!
Will check them out now.
Cheers!
I dont think this is right...
Ramon_Mac said:
Yes, You seem to be right. Vodafone at GSM900 in Mumbai seems the odd man out. Maybe the Radio ROM is not working for GSM 900 and hence affecting only Vodafone connections.
Still does it explain why the same Radio ROM worked for all this while over so many flashes and failed to connect to one particular frequency suddenly?
I have been trying to get a Radio ROM dump to 2.79.90 to upgrade. No luck yet.
My phone is out of warranty a long time ago. So no chance of getting the whole phone replaced without burning my pockets!!!
Thanks for your inputs Krazy!
Cheers!
Click to expand...
Click to collapse
Hi I dont think this is a problem with vodafone in mumbai...
Because I am also in mumbai using the vodafone service and also having the same (02.71.90) version of radio.
I think you have made any mistakes while upgrading...
Still check with upgrading Radio ... Let us know the status
Bhushan,
Yes , you may be right. Maybe i did make some mistake while flashing 6.5
None of the links have any Radio ROMs and i havent specifically done any Radio ROM upgrade myself. The only time the Radio ROM changed was when i ran Olipro HSPL.
Has anyone tried out railwayplatform's method?
How many of us are actually using the 2.71.90 version? If I am the only one facing this problem, then most probably the cause would be a bad flashing or M/B issue.
Cheers!
loop mobile a.k.a bpl mobile work on 900mhz so i dont think you have problem with 900mhz network as per my infomation your mobile is more then two year old so i think it time to buy new ..
Ofcourse its old!
But Loop and Airtel work flawlessly still. Its just Vodafone that doesnt.So no real reason why to invest in a new handset now.
Besides Its slowdown time guys!!!
There is a 99% chance there is nothing wrong with the handset.
So i am very keen to see if this problem can be resolved.
Cheers!
Hmm.. this is strange, really strange. Have you tried some other Vodafone sim too? Maybe its just with that particular number? I am just guessing now.
Krazy,
Yes the problem persists for all Vodafone SIMs( mine as well as others).
Have tried it with Vodafone SIMs of myself, my wife's, 3 colleagues at work and 3 at the Vodafone care shop.
This problem has been exihibited for all Vodafone SIMs.
Got a thought from a buddy - All this while i have been flashing with my SIM inside the phone. Does this have anything to do with the problem?
Cheers!
I dont think so...
Ramon_Mac said:
Got a thought from a buddy - All this while i have been flashing with my SIM inside the phone. Does this have anything to do with the problem?
Cheers!
Click to expand...
Click to collapse
i dont think so flashing with the SIM inside the phone is causing the problem...and may be you need to visit a HTC service center and ask them to flash an official wm 5 with an updated radio rom and see if it works...just a suggestion...Hope this helps....Good luck mate...
Just a thought
I have flashed my poor Gene and now departed Vox how many times I don't know, and everytime the SIM was inside. So that wont be issue.
Just a thought, are you using Vodafone Prepaid? Because Vodafone, atleast in Kolkata still provide 16 K SIMs and earlier when I had a Vodafone Prepaid number, my Vox would reboot between calls or while browsing the contacts / msgs. This was told to me by the tech support at a nearby Vodafone store that it IS a issue with all sophisticated sets (actually its sort of forcing you to go for a post paid where you will get a 32 K SIM ). So, if you are a prepaid customer, then can you try some one's post paid vodafone SIM and let us know?
Sorry! Duplicate post.
Yes 16 K SIM might be an issue because 16 K Airtel SIM is also creating problems like call drops, people call u but u dont get a notification etc.
I read the same on HTC touch orkut forum.
same prob here
dear friends,
i have also faced same problem, but a little differently.
I am a idea, punjab (formerly SPICE) customer. while roaming in ghaziabad / kale khan/ okhla I found that my phone lost network. it kept on searching on and on.i tried hard and soft resets also. if i did it manually, it wont register, and by any means it gets registered to a network, then 100% sure, call wont make. two sims showed this problem, one- idea and vodafone. but the problem was found while roaming only. i didnt report this in forum as i didnt take it seriously. but seeing this post, i decided to report it to forum so that it can be rectified. its just a feedback, not a complaint.
To Addicted2xda,
I am using a Vodafone Postpaid SIM. All the Vodafone SIMs i tried were post paid SIMs. At Vodafone Care, the guys there tried with a dummy SIM. The problem persisted for all SIMs.
This is really giving me sleepless nights.
Any way i can delete all the data on the phone including all ROMs, like bring it to a pristine state and then start with HSPL and flash a new ROM?? Maybe this may correct the problem - Just shooting in the dark.
To Mehra, Thanks for your feedback.
To HTCP3400,
I had a HTC STock WM5 ROM provided by Vukile. I tried it also. But the stock ROM didnt change the Radio ROM version and the problem existed with it too.
Cheers!
Guys, do you feel this could happen because of the SPL change? I dont know whether SPL is responsibile for sim activities or not, bu I will definately search for it. Apart from that, there is nothing we have changed in the phone. I dont know, but these kind of things never happened with me. Ya one or two times, my phone lost network at some places and keep searching for it even though other phones were working fine, but on soft reset or just turning the radio on and off from comm manager worked everytime. Anyways, lets see waht can be done.
Got this from htc touch orkut community
14/05/2008
Nithin
hi guys...my phones mother board was changed due to incomin cal prob. i was using airtel prepaid 16k sim...after changin board the prob was stil ther...i contacted toll free no nd they asked me to use 32k sim...i changed 16k to 32 k with same airtel...but still d same prob...now am usin idea 32k prepaid...no probs at al... its d prob wit airtel but they not agreein with it...so better change to sum other netwrks otherwise cant use this wonderful
21/07/2008
Krishnaa
the problem has nothing to do with ur OS. Its linked with the Radio ROM.
Try diff versions of the Radio ROM which would go well with your network. For instance 3.21.90 rom solves the call drop issue on chennai airtel prepaid to an extent. So you ave gotta experiment with diff versions of radio rom n freeze on the one which would be better for ur network.
Hey vaibhav, can you post the Radio Roms that you have got. That would be good in case when one of us changes his network and gets this problem. Coz I searched for them but couldn''t find em anywhere.
Hi folks, can anyone please help me with this problem?
My brother in law has asked me to look at his S740. He has tried several o2 SIM cards (UK) in this phone but always gets told there is no signal.
Not only that, but there is a symbol where the strength meter should be that isn't documented in the user guide.
He has also tried my o2 (3G) sim and a Vodafone sim, both UK.
Any advice gratefully recieved. We have tried several hard resets also.
Thanks
This means it's looking for signal. My guess: Still SIM-locked?
.-ombre-.
Jerry-S said:
Hi folks, can anyone please help me with this problem?
My brother in law has asked me to look at his S740. He has tried several o2 SIM cards (UK) in this phone but always gets told there is no signal.
Not only that, but there is a symbol where the strength meter should be that isn't documented in the user guide.
He has also tried my o2 (3G) sim and a Vodafone sim, both UK.
Any advice gratefully recieved. We have tried several hard resets also.
Thanks
Click to expand...
Click to collapse
Not sure if it's SIM locked as there is a menu to select which carrier to use.
It reads the SIM correctly and sets it all up for o2, but just doesnt get any signal.
Does anyone know where the GSM antenna is on these? Maybe its a bad connection.
UPDATE:
I've had a mail back from HTC that recommends I send it in for repair, lol.
Now do I take it they are robbing buggers or do I take it that the icon is an indicator of a hardware fault??
Hmmmm, dilemma. lol
Are there any more suggestions on what it may be?
Has anyone successfully taken one of these apart?
it may be because of a hardware error...try to connect to a wifi network...if it impossible to find a wifi network then it is due to a harware problem.Most likely because the FR coaxial cable is out of its possision...download the service manual and see how to fix it.
sasiskas said:
it may be because of a hardware error...try to connect to a wifi network...if it impossible to find a wifi network then it is due to a harware problem.Most likely because the FR coaxial cable is out of its possision...download the service manual and see how to fix it.
Click to expand...
Click to collapse
Hi sasiskas, it conects fine to my wireless network at home. I take it from your response that the cable serves a double purpose.
I downloaded the service manual so I could take a look, but only got as far as removing the 4 screws at the back. lol, I couldn't figure out how to get it off, lol
I'm still stuck at the assumption that it is indeed SIM locked, and so will try to find a suitable card to try out.
Jerry-S said:
Hi sasiskas, it conects fine to my wireless network at home. I take it from your response that the cable serves a double purpose.
I downloaded the service manual so I could take a look, but only got as far as removing the 4 screws at the back. lol, I couldn't figure out how to get it off, lol
I'm still stuck at the assumption that it is indeed SIM locked, and so will try to find a suitable card to try out.
Click to expand...
Click to collapse
Try contacting with your phone's provider (shop,e-bay seller whoever it is) and ask him details about the sim.Good luck.
hey
im getting the same issue on my girlfriends rose
the hardspl is out now and i have tried to flash the rom to see if this helps but nothing as of yet, it could be the radio rom its self as i have a touch pro and when i first got it it was the same till i flashed a cooked rom onto it, its now working fine for me,
if i find out how to fix this i will leave ya a post
stone81 said:
hey
im getting the same issue on my girlfriends rose
the hardspl is out now and i have tried to flash the rom to see if this helps but nothing as of yet, it could be the radio rom its self as i have a touch pro and when i first got it it was the same till i flashed a cooked rom onto it, its now working fine for me,
if i find out how to fix this i will leave ya a post
Click to expand...
Click to collapse
Thanks. I have tried the same but just keep getting a vender ID, (lol spelling), error.
I would appreciate any input whether you have success or not, it just may spark an idea off.
I cant get in touch with any sales or provider as it was gifted to my bro in law. He's not that bothered about it but would like to have it working if he can.
Thanks folks.
Hey! I think I know the solution to your problem...I had exactly the same problem when I hardReseted my phone.
Go to "Start-settings-Phone-Band Select"
and then select
1.Network type : Auto
2.Band Type : "Euro" if you live in Europe, "US" if you live in USA , or "Japan" if you live in Japan.
Good luck...Let us know if it worked!
sasiskas said:
Hey! I think I know the solution to your problem...I had exactly the same problem when I hardReseted my phone.
Go to "Start-settings-Phone-Band Select"
and then select
1.Network type : Auto
2.Band Type : "Euro" if you live in Europe, "US" if you live in USA , or "Japan" if you live in Japan.
Good luck...Let us know if it worked!
Click to expand...
Click to collapse
Yes that is a good suggestion because the phone will display that icon if it can't find a *usable* network, be it that the SIM doesn't allow it or if the bands don't match the selection on the phone or the bands are not usable by the phone hardware etc.
I would suggest downloading & running HTC Field Test (fieldtest.exe) with & without a SIM installed, with each network & band setting & see if it shows any towers or signal. (Normally you want Auto for both but you may not have that option or you might prefer to set to a KNOWN working band to conserve battery & minimize searching) If should show something even without SIM or with SIM lock because it's supposed to support emergency calls either way. If it shows signals with SIM but you still have same no service icon then it's likely SIM locked (although the phone should alert you to that fact) so odds are the phone hardware, rom or settings do not support whatever signals are available to you. (Btw if field test shows N/A for all the values you need to app unlock your phone)
Hope that helps.
Bill
can you share a link with HTC Field Test?Thnx
Search is your friend.
http://forum.xda-developers.com/showthread.php?t=393781
Hey all I'm having a very similar problem.
Had my HTC for some months now but in the past few days I've found that my network signal is becoming very unpredictable.
I'm also on O2 and I used to have a pretty contstant H (I presume HSDPA) connection.
Howeever im finding now the phone with go from H to 3G to GPRS to E to no signal in the course of 5 mines and round and round again!
Its very annoying as it means I cant make / received calls or texts fluently and even cut me off on a phone call too.
However usually on phone calls it will keep me connected ok till I hang up and then go to no signal.
I've checked the wireless and it is picking up networks..
Any other suggestions? I will try the field test tomorrow...
PS I know its not the network as my work blackberry is O2 and is not having this issue..
Cheers in advance!
Well, just to close my input on this thread.
I tried various ROM's available from this site and none worked.
I did try the band selection settings but still a no go.
I did have limited success but overall, nothing. The phone has now gone back to the person who asked me to look into it and to my knowledge he is going to sell it to one of these phone reclaim companies.
I did check and one place, I think through the post office, is offering £80 ish so not bad I suppose.
Anyway, thank you to all who have made suggestions and wotnot. Personally I'm still happy with an old Nokia 6300 and my Wizard (Mini-S)
Thanks folks.
Hello friends.
I got a S3 bought on the Tigo carrier, but I needed it to use it on Claro carrier. The day they give the phone to me I tested my Claro Sim and since all was good I decided to buy it. And actually it worked all fine for like 2 months, then suddently I got a "Cannot Register on Network" message, while on this state I cant make/recive phone calls or SMS but oddly I still have full 3G internet with no problem. Removing battery / SIM used to solve the problem sometimes but not anymore. I tried change SIM for a new one and still the same problem. Tried hard reset aswell and didnt helped. Its weird because I used it on Claro perfectly for 2 months then this happened. If I put a Tigo SIM it works all good. =/
What do you suggest me to do? I need to use my Claro number.
Thanks in advance.
Hello developers.
I am amz. In dire need of your help.
Ok so i have a new mini
I turned it on n it would jus turn off if I used apps. I got a new battery. That stopped.
I then try use Internet it works only on G and E but if I go to 3g or Lte. .H will never come on. Can't call it says not registered on network only on the higher bands not gsm.. It's a 4G sim it works perfectly in my old s5 mini and signal is excellent here. I got new Internet settings too. G n E works why the he'll doesny the other bands register on network? Imei shows its not blocked either. I'm in the UK on EE. I cannot understand. I have all the OTA updates. Can u tell me if I can fix it by doing something thro service menus or anything also all sims do the same in this phone. I don't have a pc to change the rom. Could I do it through a external SD card.
Please I beg of you help.