Hi,
I'm not getting any 3g signals on my Xperia V after flashing back to stock.
What I did:
1. Had CyanogenMod 11.x on my Phone for years. Worked just fine.
2. Switched to CyanogenMod 12.1 (Neo's Homebuilds) a few weeks ago. 3g still working.
3. Wanted to sell my phone - cause I got a new one - so flashed back to stock (9.2.A.2.5 Customized DE) using "XperiFirm" from Flashtool
4. After flashing 3g wasn't working anymore. Every time the phone switches to it I have zero bars and a red "x".
5. After switching to "only GSM" and a reboot I had a stable 2g connection. But as soon as I try to turn an 3g, I get zero bars and a red "x".
6. I switched back to CyanogenMod 12.1 (Neo's Homebuilds). Same problem - zero bars and a red "x"
7. Tried several different stock roms found in the "STOCK FIRMWARES for Xperia T,TL,V,TX" thread
8. Locked the Bootloader und used Sony PCC to repair my Phone
9. Did a factory reset
Additional info's:
I live in Germany
Provider is "o2"
Sim works in a different phone
Can't try out 4g since my provider doesn't offer it.
Everything else is working just fine
The phone is in a really good condition and would get me 100€+ easily. I really hope it is something that can be fixed.
So if anyone can offer some help I would appreciate it.
Try unbranded ftf Nordic or central Europe
Tried them all. No change.
My SI is 1270-9179 which is "Customized DE" if the information in this post is correct.
It is really wired. While finding the 3g networks in 2g mode, it behaves like there is no network at all when it switches. Doesn't even find 2g networks anymore and I have to switch do GSM only and reboot. Only emergency calls are allowed and under "Settings > About phone" it's looks like there is no SIM card.
Have u tried 4.1.2 or ICS.
And try with a different sim card
Related
Yesterday my Milestone dropped the network and wrote "Only emergency calls". On other phones there was maximum signal. After a while the phone logged in to the network, but lost the signal again. I thought something is with the ROM, so I made a factory reset but didn't help. I flashed the correct SBF file (first Éclair, then Froyo), but didn't help. I restored an earlier MOD I used without any problem but didn't work.
I always used the German baseband files with other MODs because my Milestone is German.
The problem is that if I make anything (I mean anything related to the data connection), the GSM signal disappears, sometimes data connection remain with no problem, sometimes it is lost, too, but sometimes it has GSM signal with only EDGE network. If I do nothing, just turn off the screen and do nothing, everything goes back to normal, and the phone has normal data connection with GSM signal, I can make or receive phone calls.
I put in another SIM but the issue was the same.
Can I try something related to software and didn't try yet or this is a hardware failure? And if so, what is the price of a GSM module? I couldn't find it.
MOD: It seems that only the 3G is not working (sometimes HSPA does while 3G phone connection don't), with 2G there isn't any problem.
dial *#*#4636#*#*
Under phone info, try a different network type.
It probably defaults to GSM (auto). It does on mine anyway and it's fine.
But maybe WCDMA preferred, GSM only, or WCDMA only will work better.
It depends on which is screwing up... the WCDMA or the GSM
edit: had the dialpad code wrong... again.. geez
lordfreyr said:
Yesterday my Milestone dropped the network and wrote "Only emergency calls". On other phones there was maximum signal. After a while the phone logged in to the network, but lost the signal again. I thought something is with the ROM, so I made a factory reset but didn't help. I flashed the correct SBF file (first Éclair, then Froyo), but didn't help. I restored an earlier MOD I used without any problem but didn't work.
I always used the German baseband files with other MODs because my Milestone is German.
The problem is that if I make anything (I mean anything related to the data connection), the GSM signal disappears, sometimes data connection remain with no problem, sometimes it is lost, too, but sometimes it has GSM signal with only EDGE network. If I do nothing, just turn off the screen and do nothing, everything goes back to normal, and the phone has normal data connection with GSM signal, I can make or receive phone calls.
I put in another SIM but the issue was the same.
Can I try something related to software and didn't try yet or this is a hardware failure? And if so, what is the price of a GSM module? I couldn't find it.
MOD: It seems that only the 3G is not working (sometimes HSPA does while 3G phone connection don't), with 2G there isn't any problem.
Click to expand...
Click to collapse
Are you sure you have applied the correct baseband?
I would tell to re-apply thru AOR.
Sent from my Milestone using XDA Premium App
You could go to settings, wireless and networks and somewhere there there is use only 2g networks and if that is checked, you could try to uncheck it. That is what happened to me before on the froyo mod. Also, you could try turning on airplane mode, then turn it off. Good luck
I always used the German baseband, tried to switch 2G/3G many times, applied the baseband trough OR, applied the RTEU baseband, re-flashed the ROM, the original Éclair, the Froyo, again and again but nothing helped. I gave up I decided to go to the service. Before that on a forum somebody asked something, I gave an answer but I was not 100% sure about it, so I flashed the RTEU Froyo.
And it worked. The 3G, HSPA, 2G, EDGE, phone functions all are working now. My phone is truly German, it has QWERTZ keyboard and the original ROM was the ROM from Deutsche Vodafone (tried that one before, too), it has the logo on its box, and the German baseband files always worked. I don't know what just happened, it's simply working now. Why now... don't know.
Hi,
I have flashed via Odin all the previous and the most recent stock firmwares of galaxy s(international version GT-I9000).I have even upgraded my galaxy s running android 2.1 to 2.2 officially via kies.
But the phone is stuck with one problem in all the cases.
The auto mode doesn't select the 3G/HSPA and instead selects EGDE/GPRS(both networks have good reception).To get 3G/HSPA I have to switch to WCDMA only mode first and then revert back to GSM/WCDMA auto mode.That's the only way to get to 3G/HSDPA signal.
I am using BSNL 3G connection.
I have seen a few topics which relate closely to this case but none of them have been solved.Please help.
You must be patient, because sometime need more time for selecting 3G/HSPA in automode...Time to time more than 1-2 minute. I think it is network related, because provider sometime make service on Base Stations on the network...
Regards
I am on jvk and its working fine on airtel
Sent from my GT-I9000 on JVK
miro666 said:
You must be patient, because sometime need more time for selecting 3G/HSPA in automode...Time to time more than 1-2 minute. I think it is network related, because provider sometime make service on Base Stations on the network...
Regards
Click to expand...
Click to collapse
Hi miro666,
Currently my SGS is running official Froyo(2.2) and it has the correct modem and CSC.The APN and all other user setting are correct.I have waited for it to switch to auto mode for more than 5-10 minutes and only by manual intervention it immediately switches to 3G/HSPA.Prior to flashing it worked flawlessly and would automatically make a switch but not now,after I have flashed it with all the android versions.
I switched the SIM to my LG Optimus P500 to check whether it is an issue with service provider or not but LOL...it's working absolutely fine on Optimus.
I guess something is wrong with my Galaxy S.
Backup data and factory reset is always the first step .
jje
I have already done factory data reset a couple of times.Also I have entirely flashed different android version but the problem still continues to irritate me.
While tinkering with the phone ,I learned one more way to switch to 3G signal data i.e. toggling the flight mode.Once switching back to signal data after flight mode,the phone automatically connects to 3G/HSPA signalling 3G/H in the notification bar.
I am clueless as what could be the reason?
Hi,
I have an HTC One M7 with it's original Vodaphone ROM (UK, vodap102)
Everything was ok but about 2 days ago suddenly it lost it's cellular network.
from time to time it connects but looses it again the moment i try to enable mobile data.
I have tried to reboot, factory reset, tried different SIM cards (from same company) but nothing.
when i go to network operators sometimes it can't find anything but sometimes it finds all the networks around. when i try to connect to my network it tells me it "Your SIM card does not allow a connection to this network"
I had a firmware update as well (sense 6) but after the update was no change.
Is there anything else i can do?
P.S.
The phone is with unlocked bootloader, S-on and is being used in a different country, not in UK. as i said, it worked perfect for about a year in the same cellular network
Please asist, Thanks.
A little update...
If i choose 2G only, it works fine. but only in this mode.
any suggestions what might it be and how to solve it?
Greetings folks. I own a Nexus 6 XT1103 Unlocked. I'm on MetroPCS currently (piggybacks off T-Mobile LTE).
On Android 6.0.1 ROMs the device connects to LTE networks with no issue whatsoever. The real issue arises when I flash an Android 7.x ROM. The device connects to 3G (UMTS/HSDPA) and remains there even though the network setting is on LTE.
The phone momentarily connects to LTE when I reset the radio from LTE Discovery app and then reverts to 3G (the LTE signal detected just drops off to N/A). Also when the device is momentarily connected to LTE, the carrier label changes to 'No Service' even though network is available and LTE data works for those few moments. After those few moments it's back to UMTS and the carrier label returns to 'MetroPCS'
I've tried the following things to fix this (all in vain)
1. Flashed different radios (05.32, 05.34, 05.42) and bootloaders
2. Flash Android N stock image and then flash custom 7.x ROM
3. Go to the *#*#4636#*#* menu and set LTE only.
4. Resetting APN to default and manually adding APNs (both MetroPCS and T-Mobile)
I know the LTE network in the area is fine otherwise and anyway the moment I'm back on MM the issue the device connects to LTE properly (with a valid MetroPCS carrier label). This issue occurs on any Android 7.x ROM but it didn't happen as often in the Dev Preview, if I remember right.
I request all of you folks to help out if you've seen something like this or have any solutions. Cheers.
PS: Google Connectivity Services installed/uninstalled/disabled doesn't fix it
Have you tried a network settings reset? This worked for me when I lost LTE connectivity.
Settings>Backup & reset>Network settings reset.
Make sure you select network settings reset and not factory reset. They're right next to each other, so if your finger slips and you select the wrong one you'll be very unhappy.
Fixed it!! Flashing the 05.39 radio on fastboot before flashing the ROM seems to do it. Now LTE works with the proper carrier label too. I'd forgotten about the 05.39 radio as it was the one bundled with the N Dev Previews.
Cheers!
Hi All,
Disclaimer: Newbie.
During December I updated my N920I via OTA. Since this update my phone constantly has network drop outs, no 3G or 4G. If I force 2G it will sometimes work albeit very slowly.
Steps taken:
Simcard Replacement
Factory Reset
Manual Flash (N920IDVU3BPL2) via Odin
Prior to this update the phone was working fine with build N920IDVU3BPJ3.
I downloaded the N920IDVU3BPJ3 Optus specific image from Sammobile and tried deploying it using Odin however I received the "SYSTEM REV CHECK FAIL DEVICE 1 BINARY 0" error. From what I have read it means that I have a locked bootloader?
I have been advised by Samsung that I am unable to downgrade? (I assume you can if you trip Knox)
Any help would be greatly appreciated! I haven't had a properly working phone since Boxing day
Thanks heaps
4g/LTE not working on N920I
Same here:
LTE was working fine on my N920I out of the box, but suddenly I observed that its only connecting 3G or 2G but not 4G. I thought that it may be custom rom issue.
I have installed Australia fimware through Samsung Kies. But it did not work.
Now I have manually installed Singapore firmware through ODIN
I have cleared internal storage and factory reset the phone
Upon forcing 4G only mode, the phone does not get signals and gets hot
I have tried inserting my sim to S7 and it quickly got connected to 4G, but 3G does not get connected to my phone
I have also contacted my carrier and they say everything is working fine
I have checked APN settings with carrier as well
I dont know what to do. Does this mean that my phone has some modem hardware issue which has broken modem due to overheat or bad code or something.
yurmuki said:
Same here:
LTE was working fine on my N920I out of the box, but suddenly I observed that its only connecting 3G or 2G but not 4G. I thought that it may be custom rom issue.
I have installed Australia fimware through Samsung Kies. But it did not work.
Now I have manually installed Singapore firmware through ODIN
I have cleared internal storage and factory reset the phone
Upon forcing 4G only mode, the phone does not get signals and gets hot
I have tried inserting my sim to S7 and it quickly got connected to 4G, but 3G does not get connected to my phone
I have also contacted my carrier and they say everything is working fine
I have checked APN settings with carrier as well
I dont know what to do. Does this mean that my phone has some modem hardware issue which has broken modem due to overheat or bad code or something.
Click to expand...
Click to collapse
Not possible since the S7 worked! Sounds like you need a new SIM card that's all.. Or you can try changing the settings again by going to Settings>Mobile Network>Network Mode and see what it's on..
MrMike2182 said:
Not possible since the S7 worked! Sounds like you need a new SIM card that's all.. Or you can try changing the settings again by going to Settings>Mobile Network>Network Mode and see what it's on..
Click to expand...
Click to collapse
I have changed Network Mode to 2G only, 3G only, 3g/2G (auto connect), LTE/3G/2G (auto connect) modes one by one after your suggestion but phone is only working on 2G and 3G not LTE.
Earlier I was having N920IDVU2BPG3_N920IXSA2BPG3_N920IDVU2BPG3_HOME.tar firmware but now since I have installed the latest N920IDVU3BPL2_N920IXSA3BPL2_N920IDVU3BPL2_HOME.tar so now I cannot go back to N920IDVU2BPG3 anymore and I get error:
sw rev check fail device 3 binary 2 in odin.
Does this has anything to do with firmware or my Modem chip is faulty due to overheat or anything?
yurmuki said:
Same here:
LTE was working fine on my N920I out of the box, but suddenly I observed that its only connecting 3G or 2G but not 4G. I thought that it may be custom rom issue.
I have installed Australia fimware through Samsung Kies. But it did not work.
Now I have manually installed Singapore firmware through ODIN
I have cleared internal storage and factory reset the phone
Upon forcing 4G only mode, the phone does not get signals and gets hot
I have tried inserting my sim to S7 and it quickly got connected to 4G, but 3G does not get connected to my phone
I have also contacted my carrier and they say everything is working fine
I have checked APN settings with carrier as well
I dont know what to do. Does this mean that my phone has some modem hardware issue which has broken modem due to overheat or bad code or something.
Click to expand...
Click to collapse
Hello,
same thing happened with my 9208 duos...
it happened some 3 weeks ago and only happened after my phone downloaded some updates..
carrier, sim all is good... issue is with phone software... and forcing it on lte only ends up having no signals..
Biggest prob is that it aint allowing to downgrade to another firmware with odin even...
ps. i dont think overheating of modem would restrict us to H & H+... if it was fried i guess there wont be any data at all...
if you are able to find a solution dont forget to let me know...
thanks
Umar
Hello, I''''ve a Galaxy Note5 N920I which wasn''''t bought from Saudi Arabia. My phone doesn''''t connect to 4G at all and at best even if it connects to 3G the connection is pretty much slow, even the Dial-Up calls are not stable and _quotlaggy_quot. I''''ve noticed that whenever I change the data connection to 4G network the device gets considerably hot at the power button side. All of this happened suddenly without any prompt about 3 days ago... I''''ve already tried changing the SIM card and testing it on other mobiles and the SIM worked just fine, also tried to change the APN and network settings but nothing worked. I am really concerned about the idea that the device might explode at any moment.
I have the same problem, my device N920I which I didn't buy from Saudi Arabia but I live there. Samsung S.A didn't help me out but rather than that they told me to contact with Samsung's branch in the country I bought the device from.
At the current situation, I have no choice other than waiting the device to explode maybe.
I regret that I didn't choose Apple's iPhone actually, as they would help me out without such irresponsibility.
Anyway, I am waiting for your assistance.
Any updates on this issue its getting worse day by day! Its summer here and i cant even touch my phone its becoming so hot.