Hi all,
My wife is unable to get a connection in WCDMA on her Z1C. Sometimes she get LTE data but in both modes she can't make or receive calls. Only in GSM mode. It happened on and off after she had it in airplane mode but now GSM is the only mode that works.
I tried almost everything, latest firmware 5.1.1. Tried my sim card which receives WCDMA fine in my Z3c and it didn't work either in hers. Checked the APN too - same as mine.
Do you have any ideas? Am about to send the phone for repair...
Try to set both antenas in the service menu. Read instructions in red when u get there .
Hi Zlata,
Thanks for your reply.
Very good suggestion. However I already tried that a couple of times
Update. Was sent to repair and Sony changed the circuit board. Was a hardware problem
Related
Hi there,
I recently sent my phone back to HTC because my volume button was stuck, which resulted in it not being able to boot (as it always went straight to recovery). They repaired it, and after three weeks without my phone I know received it back. They 'replaced parts and did a software update.'
Problem is, now I have no mobile network connection. The phone recognises the SIM fine, but no signal and search networks results in "Error while searching for networks."
I'm blaming the software update HTC did, so I send them another email. The thing is, I don't want to send it back AGAIN, I had the phone a full 2 weeks before it broke and haven't been able to use it since. Is there anything you guys can think of that doesn't involve rooting it and losing my warranty (which I will probably need now)?
Thanks a bunch
Hello,
have you tried to switch between the network mode; only WCDMA or only GSM? (Settings->Mobile Network->Network Mode)
Pundy said:
Hello,
have you tried to switch between the network mode; only WCDMA or only GSM? (Settings->Mobile Network->Network Mode)
Click to expand...
Click to collapse
Thanks for the reply. Yes I have, no effect. One other weird thing I have noticed since first posting: at the about -> Phone Identity screen, the phone number does not match my actual sim phone number. It reads the SIM fine though, as all my SIM contacts are available.
Could you use/try another SIM Card to check its work with a different one?
Is WiFi working? Any interruptions druing a regular call?
Pundy said:
Could you use/try another SIM Card to check its work with a different one?
Is WiFi working? Any interruptions druing a regular call?
Click to expand...
Click to collapse
Regular call is impossible, as I have no cellular network at all. Wifi works fine. I am currently unable to try another SIM, as I'd have to cut a microsim out of a regular one and people around don't want to have their card cut up.
The sim works fine in my old nokia though, so I don't think that's the issue.
I'll try to find a friend with an iPhone 4 to try their microsim, but I'm not really counting on it.
Hi Everyone.
Stock O2 ICS- rooted - bootloader unlocked
I've recently bought used HTC One V locked to O2. Problem is gsm service never worked for me.
WiFi, Bluetooth, GPS are fine but emergency call only.
I've tried different sim, 2 custom roms, hard reset and no lucky.
Under mobile network setting I cannot swap between WCDMA only - Auto - GSM only, it is sticked to WCDMA/GSM Auto only
When push *#*#4363#*#* Cannot change network mode too, WCDMA preferred fixed only, if going to radio band selection cannot choose any (Automatic, EURO Band etc) just got message "Set [automatic or any] Unsuccessful.
What is weird, When I turn mobile data on with correct APN for my provider (currently giffgaff) I have gprs running and can send and receive data, but with my other phones I had before my service has been alwaysfast as 3G and HSDPA, not "G" like now.
Please see below my screenshots, I've checked my mobile network with many apps and there is what I've found
Ok this may seem a very stupid question but it happened more than once. Are you using the little piece that covers the sim card? That has contacts in it, without it there is no signal
mr_nooby said:
Ok this may seem a very stupid question but it happened more than once. Are you using the little piece that covers the sim card? That has contacts in it, without it there is no signal
Click to expand...
Click to collapse
thanks, but no lucky
osstis said:
thanks, but no lucky
Click to expand...
Click to collapse
If you still have warranty, run a ruu so it goes back to stock, and take it to the HTC centre. If you are lucky they will recognize it as hardware problem and give you a new one. Remember to tell them it never worked, and if they ask about root or stuff, you don't know about it
No I don't have a warranty (it's second hand and a have no seller contact anymore), otherwise I would not asking here. Looking for somebody who solved this, if.
I am in a fix here!!! Since long I have been facing this problem wherein, whenever I switch to 3G/4G mode, my phone looses network forever.. It seems to work perfectly fine in 2G mode.. I tried everything.. playing with radios, factory resetting and all the other help that I could get but in vain. I thought it is a hardware issue and since mine is an imported one, and I don't have warranty, I was avoiding to take it to a repair centre.. A week back, I went to Malaysia for a trip, and as I put a local SIM, my 3G starts working perfectly fine... I thought it could be a radio issue and as I came back to India, to my surprise my old local SIM was working fine in 3G mode yet again!!! I thought somehow my problem was sorted!!! It worked for 2 days and it is back to the old problem now.. no 3G whatsoever!!!! Please help me guys!!!
I was just browsing and I read an samsung user facing the same problem.. The carried switched his normal SIM to USIM.. and it started working.. could this be a valid issue?
try this.
cool_sid007 said:
I am in a fix here!!! Since long I have been facing this problem wherein, whenever I switch to 3G/4G mode, my phone looses network forever.. It seems to work perfectly fine in 2G mode.. I tried everything.. playing with radios, factory resetting and all the other help that I could get but in vain. I thought it is a hardware issue and since mine is an imported one, and I don't have warranty, I was avoiding to take it to a repair centre.. A week back, I went to Malaysia for a trip, and as I put a local SIM, my 3G starts working perfectly fine... I thought it could be a radio issue and as I came back to India, to my surprise my old local SIM was working fine in 3G mode yet again!!! I thought somehow my problem was sorted!!! It worked for 2 days and it is back to the old problem now.. no 3G whatsoever!!!! Please help me guys!!!
Click to expand...
Click to collapse
enter to this menu *#*#4636#*#*
go to phone information
and change the option lte/gsm to WCDMA prederred.
and dissable data and enable it again.
one question are you s-off?
might sound crazy my question.
If you are not s-off flash the boot.img of the rom again
Tried it bro.. doesn't work.. yes i am s-off.. thats how I could switch radios as well..
cool_sid007 said:
Tried it bro.. doesn't work.. yes i am s-off.. thats how I could switch radios as well..
Click to expand...
Click to collapse
If changing the settings in Phone Info did not help I have to agree that you need a different sim or different APN settings.
The same SIM works with the same APN in other phones... and even if it was an APN issue then the data would have been a problem.. But i don't even get network in 3G..
Sent from my HTC One_M8 using XDA Free mobile app
No help??
cool_sid007 said:
I am in a fix here!!! Since long I have been facing this problem wherein, whenever I switch to 3G/4G mode, my phone looses network forever.. It seems to work perfectly fine in 2G mode.. I tried everything.. playing with radios, factory resetting and all the other help that I could get but in vain. I thought it is a hardware issue and since mine is an imported one, and I don't have warranty, I was avoiding to take it to a repair centre.. A week back, I went to Malaysia for a trip, and as I put a local SIM, my 3G starts working perfectly fine... I thought it could be a radio issue and as I came back to India, to my surprise my old local SIM was working fine in 3G mode yet again!!! I thought somehow my problem was sorted!!! It worked for 2 days and it is back to the old problem now.. no 3G whatsoever!!!! Please help me guys!!!
Click to expand...
Click to collapse
did you solve the problem?? since am facing the same problem and i don't know how to solve it
quican said:
did you solve the problem?? since am facing the same problem and i don't know how to solve it
Click to expand...
Click to collapse
Post as much detail about your problem, if you want to get help.
What version M8?
Is it modded (custom ROM, root, s-off) or stock?
What region/carrier, and more importantly, what bands used for 3G and LTE?
What does it say for OS number in bootloader screen?
You've verified the SIM works for 3G and/or LTE on another device?
redpoint73 said:
Post as much detail about your problem, if you want to get help.
What version M8?
Is it modded (custom ROM, root, s-off) or stock?
What region/carrier, and more importantly, what bands used for 3G and LTE?
What does it say for OS number in bootloader screen?
You've verified the SIM works for 3G and/or LTE on another device?
Click to expand...
Click to collapse
The SIM does work for 3G and LTE on other devices,
its modded with:
(***RELOCKED***
M8_UL_CA PVT SHIP S-OFF
CID-11111111
HBOOT-3.19.0.0000
RADIO-1.29.213311491.05G
OpenDSP-v51.2.2-00593-M8974_FO.1015
OS-6.12.1540.4
eMMC-boot 2048MB
Nov 27 2015,01:21:29.3
)
in Tanzania and my carrier is (Airtel with bands 900, 1800 and 2100) and (TTCL which is 4G LTE)
quican said:
OS-6.12.1540.4
in Tanzania and my carrier is (Airtel with bands 900, 1800 and 2100) and (TTCL which is 4G LTE)
Click to expand...
Click to collapse
According to the following webpage, the 3G band used by Airtel is Tanzania is 2100 MHz (900 and 1800 listed are only for GSM/2G): http://www.worldtimezone.com/gsm.html
As this webpage also lists " 4G LTE TTCL" I will have to assume you got the info from the same or similar website. And that doesn't tell us what band your carrier uses for LTE/4G.
The 3G band 2100 MHz is supported by your current firmware. Make sure you have properly input the APN info for your carrier in the phone's settings.
LTE is trickier. Even with the proper band support and APN, you might not get LTE using an M8 version not intended for your region/carrier. But 3G should be possible.
I did but the 4G symbols is showed on the network bar once in a while. And it does not last long when it shows up!
For the TTCL sim card i can not access the network at all since it does not allow 2G services!
The same here. I face the problem yesterday =)) LTE icon show for the first time and then after a reboot, 3G and LTE signal gone forever =)) Now Edge only. Trying to fix it.
Hello there, I'm in need of your help again.
My SGH-M919 has a problem, it cannot connect to 3G/LTE (Not even EDGE). My carrier uses the 850 mHz band for GSM and 1900 mHz for UMTS, so the phone should be able to use them. The thing is, it doesn't. It only connects to GPRS and the signal is very erratic and weak (Usually 2-3 bars). Sometimes I get SMSs from my carrier saying that I missed like 5 calls when my phone never rang once. I live in a zone with good 3G coverage, so it's not the signal.
I'm currently rooted on Android 4.4.4 (NH7). I already tried selecting "1900 WCDMA" in the *#2263# service menu but that only causes the phone to lose all the signal (And it's a problem to change it back, without signal the service menu doesn't work and I cannot change the Network Mode in Settings).
I've tried to select "WCDMA only" mode before, but my signal just goes to zero (The circle with the slash) before changing back to "LTE/WCDMA/GSM (Auto connect)" automatically.
I also cannot use the Network Operators option. Using "Search now" makes it search for a few seconds before showing the message "Error while searching for networks". The "Select automatically" one shows the message "Unable to connect. Try later" and then connects back to my carrier (Movistar)
My APNs are configured (They did it themselves when I inserted the SIM, but I've configured them manually before). The SIM card works, I tried it in another phone and it got 3G immediately, I also tried another SIM card on the GS4, but the result was the same. Someone told me to upgrade to the latest firmware (NK2) while someone else told me to flash the MDL modem. (Is that even possible? I read something about KNOX blocking all downgrades after 4.3).
Since I couldn't find any direct solution to the problem, I'm recurring to you.
Thanks.
P.S: I didn't change the LTE Band Preference option in the Service Menu because the last time someone messed with it, my IMEI/Baseband went completely nuts, I thought the EFS got corrupted, but they magically appeared everytime I enabled the Airplane Mode (So I was able to select Automatic in the ServiceMenu and they got fixed). Also, I don't live in a LTE area although once during a very strong thunderstorm, I got 4G for a few minutes before going back to G).
*bump*
Any ideas?
Did you put a check mark in data roaming?
Shortbus-Driver said:
Did you put a check mark in data roaming?
Click to expand...
Click to collapse
I've tried with and without it, it doesn't make a difference anyway.
Does it show you have an ìmei # other than all zeros?
Don't post it just a yes or no.
Shortbus-Driver said:
Does it show you have an ìmei # other than all zeros?
Don't post it just a yes or no.
Click to expand...
Click to collapse
My IMEI is fine, the phone connects to the carrier network but it stays on GPRS (and the signal is always dropping)
Update to full NK2 firmware and see if that will fix it
serio22 said:
Update to full NK2 firmware and see if that will fix it
Click to expand...
Click to collapse
I'll try that later. Will I have to re-root and re-install TWRP after flashing NK2?
I have a similar problem with my M919 on the Tmobile network. Using the *#2263# menu I can not get mine to work on WCDMA (4G) either. I can chose GSM /LTE only and my phone works normally but no 4G signal. If I chose WCDMA I get no signal. I can see it trying to connect and immediately dropping the signal. If I choose any option with WCDMA included it has erratic signal and will lose the signal most of the time when I try to make a call. So basically I have the choices of GSM only or GSM/LTE only. Before I discovered the secret menu I was stuck with GSM only in the phone's settings. This has been going on for months. Tmobile changed my SIM card and it didn't help. I've rooted and unrooted my phone (using autoroot) and even tried different modems (even worse signals) and now am back to stock rooted NK2 firmware and modem. I have given up and decided to get another phone (not an S4). My wife's S3 gets great 4G signals in the same location by the way. I wonder if anyone knows why our phones can't use 4G. I am beginning to think it's a hardware problem but I'm way out of warranty on mine.
Hey guys, just unwrapped my new N5x and popped in my sim card. Yet for some reason I can't make or receive any calls!
Calls to me go straight to voicemail, and when making an outgoing call it either immediately says call ended or after a while says network unavailable.
The strange thing is that the entire time I'm connected to LTE (full bars) and data works fine (I can use chrome), and I can even send and receive SMS!
It's been like this straight out of the box. I reset the network settings, then factory reset the device, then upgraded to 6.0.1, rinsed and repeated with no luck.
Probably related: I tried setting the phone from LTE preferred to 3G or 2G but it still says connected to LTE. Even did it manually from the *#*#4636#*#* and nothing changed.
I'm using HOT Mobile in Israel and the American version of the phone. All bands are here are supported.
Any thoughts on how to proceed?
Do US specifc models of phones normally work fine in Israel?
I know I had these symptoms when I managed to accidentally swap my UK model to use USA bands. Only potential difference is that I don't think SMS worked for me.
If someone more knowledgeable knows where the "Network settings reset" pulls values from and to, that might help.
Or which partition holds the data that makes a US phone a US version and an EU phone an EU version (assuming it isn't hardware), we could potentially flash stuff.
Yeah they do. I have a friend with a 5x and his phone is working fine. :/
Check your apn settings, re add them again to test.
Maybe your network do not support lte calls, try it on 3g. This was my solution even thought my network supported volte and worked on s6 but not on my 5x.
I see you tried the 3g option, my problem was another app causing the conflict between lte and 3g. Able to source for another spare sim to try?
I deleted the apn settings - no luck. tried 2 different service providers and same results with both
I havnt installed anything yet and wiped the phone to be sure. Could a stock app be causing the conflict? How can I check?
did you try having your friend put his sim in your phone and yours in his to see if it works?
Yep - he's on the same service provider that I am. Didn't work. Also tried a Sim card from a different service provider.
Here is a solution if you still need it http://forum.xda-developers.com/showpost.php?p=64023143&postcount=10