ZR does not get coverage in WCDMA mode. - Sony Xperia ZR

I'm looking for a solution to ultra frustrating problem I encountered after performing OTA lollipop upgrade from kitkat. My network coverage gone after lollipop upgrade, I can't make calls or send messages. While I played with settings i found that with in Preferred network type there are three options as below.
WCDMA Only
GSM only
WCDMA (preferred)/GSM {Default option}
It was set to 3rd option. When I changed to GSM only option my calls and sms started to work flawlessly but as you all aware Internet was on 2G(Edge). To get HSPA working as far as I know I have to use WCDMA in xperia phones (Not to be confused with CDMA). When ever I switch to WCDMA my coverage goes off.. I can't make calls. So i end up using the phone in GSM only mode and made a thread in official xperia site as below. I also tried repairing using PC companion and resetting the phone no avail.
http://talk.sonymobile.com/t5/Xperia-Z-ZL-ZR/xperia-zr-c5502-does-not-support-WCDMA-after-lollipop/td-p/1001920
As you can see one person with the ranking of moderator acknoledged the issue and suggested me to revert it back to Kit kat until the fix has been made. I tried flashing using flashtool still problem exist. Even in old kit kat firmware which i was using it for long time with out any issues. I think some thing has happend to my mobile after lollipop upgrade.
Yesterday I unlocked the boot loader and flashed Cynogenmod 11 as well.. Again same problem. WCDMA does not work thus no 3G. Now I'm using Sony official lollipop firmware by flashing via flashtool.. I ended up using my phone in GSM only mode (Edge).
Any suggestions? Ideas?

I would try downloading stock LP ftf file with XperiFirm, then using Flashtool and try flashing only baseband. Not sure if it would work if you install a KK baseband, i would stick only to LP files in the meantime.
There is also another option to force select the bands, just dial *#*#4636#*#*, go to "Phone Information", and on the preferred Network type, choose "WCDMA Preferred". Wait 5-10 minutes, it might take a while for the carrier to recapture phone signal.
If that doesn't work, you might want to check if somehow the bands were locked with the LP install. There is an excellent guide on how to unlock bands, i tried with my SO-04E (japanese C5503) and i was able to unlock some of them, as not all carriers on my country were recognizng HSPA, and were recognizing only EDGE.

Related

[Q] Network unavailable

Hi, Ive got xperia from vodafone australia.
When I first started my phone I upgraded it to 253 straight away. Everything was working fine, but needed root.
First I tried to open the bootloader following instructions from sony but something went wrong(bootloop) so I used the SUS for the recovery. Worked fine, and when the phone was starting for the first time it went through some network configuration.
Then I downgraded it to 434 with unbranded australian rom. Upgraded to 10.3.A.0.423, unlocked bootloader, rooted, everything was looking fine. But today in the morning I tried to use my phone and it says "network unavailable" when i try calling or that "the message couldnt be sent" when trying to text. I locked bootloader, flashed with sus, then flashed the same unbranded rom and still the same!
Emergency calls are working. Reception is full but it doesnt display "H"(wifi is off).
Is there any way to run the network configuration like it was after restoring though SUS? After flashing another roms there wasnt this kind of thing..
Anyone could help?
I flashed another rom, 10.3.A.0.432 from spain and my data connection started working(yes, im sure that wifi is off). But still I cant make a voice calll. During the basic configuration it asked me about my network and if I want to download internet settings. Is that possible that I need specific settings for Vodafone?
When I tried calling my number from another phone it just says "call ended" instead of connecting to the voicemail.
Anyone?
Try another SIM card.
Sent from my C6603 using xda app-developers app
I'tried another vodafone card, was the same. Tomorrow I will try to get card from another network but it's a bit doggy, that I got data connection but no voice calls/texts. Remember that long time ago on wm I similar problem but there I was helpful the reinstall radio and run connection settings. Is there anything like radio drivers for xperia?
on android the radio is the baseband, have you called your provider to see if there are any issues with them or your account?
What do you have in APN in your phone?
Check it in Settings => Wireless & Network => More...=> Mobile Networks => Access Point Names
If you have no APN don't search further, this is your problem, you need to fill the APN with your operator informations.
I've had exactly the same problem after réinstalling the phone with PC compagnion.

LTE not working, even after reflashing. Strange values in the *#*#INFO#*#* menu

Hello, and thanks for taking the time and reading this.
I installed CM on my C6603, but reflashed to a stock .244 rom, which I already used to update to .244 before. Since then, LTE, which was working fine on the same ROM before, is not working anymore. LTE (prefered)/WCDMA/GSM is activated in settings, but *#*#4636#*#* --> Phone Informations shows the following:
(Interesting facts: the timestamp translates to about 300 years, and all the values, including the last one, ta= are all the same)
Code:
[B]Network-Information[/B]
[0]=CellInfoLte: mRegistered=NO
mTimeStampType=Unknown
mTimeStamp=922337203..........ns,
:[email protected] mMcc=2147483647
mMnc=2147483647
mCi=2147483647
mPci=2147483647
mTac=2147483647,
CellSignalStrenghtLte: ss=2147483647
rsrp=2147483647
rsrq=2147483647
rssnr=2147483647
cqi=2147483647
ta=2147483647
In the same menu, the preferred network is set to "WCDMA preferred". If I set it to anything that has LTE in it, I still only get a HSPAP connection, and frequent network drops, except for "LTE/CDMA auto (PRL)" which show no network and throws up an error, but not every time.
When I search for networks manually, it shows my carrier's LTE network, but I can not log in to it.
I have no clue how to fix this, so do not hesitate to suggest a sloution.
Do you have a backup for TA partion before unlocking the bootloader?
If yes,restore your TA and flash the firmware again.
gm007 said:
Do you have a backup for TA partion before unlocking the bootloader?
If yes,restore your TA and flash the firmware again.
Click to expand...
Click to collapse
Thanks for the suggestion. I have relocked the Bl with flashtool, that should have the same effect, shouldn't it? It did not help, however...
No relocking the bootloader with flashtool is different than restoring TA partition.
gm007 said:
No relocking the bootloader with flashtool is different than restoring TA partition.
Click to expand...
Click to collapse
oh, ok. I shall try to do that, then.
OK, I restored my TA-partition, that didn't help though. Any more suggestions? I am still particularly sceptical of all the numbers after mTimeStamp that are identical.
Have you tried flashing the baseband only for the c6606 onto the c6603 I had the same problem my Gwat was rolling from 3g to h+ then off no radio (red x) , that was after the last update so I refreshed the baseband for the zl c6606 and it we working but taking about 5 min to connect then I tried the *#*#4636#*#* lte preferwd setting as suggested now its instant connect and no disconnects,the baseband flashing was to correct the lte connecting in Canada. It might help you.I also have the timestamp thing I think
Coirpre said:
Hello, and thanks for taking the time and reading this.
I installed CM on my C6603, but reflashed to a stock .244 rom, which I already used to update to .244 before. Since then, LTE, which was working fine on the same ROM before, is not working anymore. LTE (prefered)/WCDMA/GSM is activated in settings, but *#*#4636#*#* --> Phone Informations shows the following:
(Interesting facts: the timestamp translates to about 300 years, and all the values, including the last one, ta= are all the same)
Code:
[B]Network-Information[/B]
[0]=CellInfoLte: mRegistered=NO
mTimeStampType=Unknown
mTimeStamp=922337203..........ns,
:[email protected] mMcc=2147483647
mMnc=2147483647
mCi=2147483647
mPci=2147483647
mTac=2147483647,
CellSignalStrenghtLte: ss=2147483647
rsrp=2147483647
rsrq=2147483647
rssnr=2147483647
cqi=2147483647
ta=2147483647
In the same menu, the preferred network is set to "WCDMA preferred". If I set it to anything that has LTE in it, I still only get a HSPAP connection, and frequent network drops, except for "LTE/CDMA auto (PRL)" which show no network and throws up an error, but not every time.
When I search for networks manually, it shows my carrier's LTE network, but I can not log in to it.
I have no clue how to fix this, so do not hesitate to suggest a sloution.
Click to expand...
Click to collapse
tokermobilez said:
Have you tried flashing the baseband only for the c6606 onto the c6603 I had the same problem my Gwat was rolling from 3g to h+ then off no radio (red x) , that was after the last update so I refreshed the baseband for the zl c6606 and it we working but taking about 5 min to connect then I tried the *#*#4636#*#* lte preferwd setting as suggested now its instant connect and no disconnects,the baseband flashing was to correct the lte connecting in Canada. It might help you.I also have the timestamp thing I think
Click to expand...
Click to collapse
yes, mine does that too, jumping from 3g to H+ to no signal all the time, I'll try that as soon as I can. also, it is reassuring to see that you have the same values for all those things.
Flashing a modem from a c6606 ROM did result in crashes and forced restarts, so this was not the solution. For the record, in addition to the frequent switching between 3G, H+ and no signal, I also get lots of dropped calls...
EDIT: with a service test under *#*#service#*#*/Radio Antenna and network mode=LTE, I get a *failed to det rx divesity settings" eror message.
so so sorry
Coirpre said:
Flashing a modem from a c6606 ROM did result in crashes and forced restarts, so this was not the solution. For the record, in addition to the frequent switching between 3G, H+ and no signal, I also get lots of dropped calls...
EDIT: with a service test under *#*#service#*#*/Radio Antenna and network mode=LTE, I get a *failed to det rx divesity settings" eror message.
Click to expand...
Click to collapse
im really sorry but i realised a huge typo it was the c6506 not c6606 i dont under stand what you mean by flashing modem, i presume you mean the same thing as baseband,http://forum.xda-developers.com/showthread.php?t=2287847, follow this page
hi
[the dropped calls is to.do with the cycle between 3g h+ and then radio off all together, the only way I've been able to fix it is the New post I linked to in my latest comment, once again sorry for giving you the wrong model number the first time
QUOTE=Coirpre;47084832]Flashing a modem from a c6606 ROM did result in crashes and forced restarts, so this was not the solution. For the record, in addition to the frequent switching between 3G, H+ and no signal, I also get lots of dropped calls...
EDIT: with a service test under *#*#service#*#*/Radio Antenna and network mode=LTE, I get a *failed to det rx divesity settings" eror message.[/QUOTE]

[Q] I9305 stuck with EDGE and no 3G/LTE

Long time lurker, first time poster.
Long story short, a friend gave me an I9305, however, I can't connect to a supported 3G network.
He had toyed around with the device (rooted, installed CM11), then reverted unrooted and reverted to stock firmware. When I got the device, I rooted it with Framaroot, flashed CWM 6.0.4.5, then flashed CM11 and Boeffla kernel. My SIM card was quite old and my carrier told that it doesn't support 3G, so I filed up for a new one. Ok, I got it, however..I'm yet again stuck on EDGE!!!
Tried reflashing CM11, CWM, flashed almost every radio baseband modem from here http://forum.xda-developers.com/showthread.php?t=2010116 to no avail. My IMEI is intact, as well as my Serial Number.
Yes, I read all threads, I tried going to Settings>Wireless&networks> More > Mobile Netwroks >Preffered Network type and checked all options. When I select 3G only, the icon goes to "H", but i can't access the web. After 10-20 seconds, the H icon dissappears and I'm forced to reboot the phone to regain my EDGE data.
At the moment, I'm running the latest Omni ROM nightly. My operator supports all 3G and LTE bands, and I got the correct APNs.
Should I flash a stock ROM and check if this does the job?
I'll greatly appreciate any help, because I'm stuck.
Wipe phone factory reset flash stock rom with modem and csc for your network.
JJEgan said:
Wipe phone factory reset flash stock rom with modem and csc for your network.
Click to expand...
Click to collapse
I can't check my csc code - whenever i type a code in the dialer I get "connection timed out or invalid mmi code". The only ones that work are *#06# and *#*#4636#*#*...
Ok, so I'm running a stock 4.3 rom and STILL have no 3G....tried everything.
Anyone, help?
Maybe if you can try to downgrade to a firmware 4.1.2 via Mobile Odin and then try and access the service mode menu. From there you may be able to enable the 3G/LTE DRX (Radio) which seems to remain a permanent change in the phone once you upgrade again to 4.3.

i9305 Galaxy S3 LTE Signal Problem / fluctuates

Hi,
can You help me pls with ny LTE i9305 S3? I have problem with signal (antena OK, any sim any network), is just good outside but whan I go somwhere in house, is very bad or stop working network. I am not sure if can be some chip on motherboard problem, or if I solve this problem by some flash.
Thanks
Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc
juliancarney said:
Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc
Click to expand...
Click to collapse
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?
Hey Paul...
1) About signal: how do you expect to get signal without SIM? Or maybe are you meaning signal for just the 112 emergency call?
2) Modem/baseband: I already provided the link in my original post, check it.
3) No need to downgrade. You will only flash the modem/baseband without touching any partition, neither the ROM nor the EFS. You can do that via Odin (check any Odin How-To document -search Google-) or via the recovery if you have TFRT or QWM (at recovery menu select flash zip file and choose the one for the modem -you need to copy the zip file previously to your sd card or internal memory).
Paul Koty said:
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?
Click to expand...
Click to collapse
Signal problem
Hello.Sir I have a s3 i9305 when i am on LTE auto network mode then i was unable to make any phone call it always show wrong mmi code or connection problem and then it lost signals after that i rebot it then it pick the network can you tell me how to fix

Problem phone only working in gsm only??

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.
Run the system updates, I had network issues until it was fully updated.
They are only patches, no new rom.
Reboot once each batch has completed until there are no more.
If that does not work, potentially you have a row version which uses a different band than us in the uk. Send it back.
I have the June 2015 update. I ran all updates. Still not working? I wanna install the cm12 rom m see if that'll fix it but kingroot not working. How do I see what band my phone is tryna connect in wcdma mode n what is required by the network? 4g don't work either?
I just Checked. My networked EE uses wcdma on 2100mhz. My phone is trying to connect. But it just says emerge calls only. Wth. What's wrong with it??
Can you post a screen of the About phone?
Should look identical to mine
Also, have you tried googling ee 4g settings s5 mini?
My network required me to get a 4g sim upgrade, before that it needed settings for hspda 3g which worked
I have a similar problem. Phone worked fine for couple of months, but since tuesday, it only works when I force it to GSM only.
G800FXXU1AOG2, nordic
(the thumbnail above equals to mine)
Maybe the network providers have changed 3g/4g details.
Check the website for correct details and update them in phone, if that doesn't work try a friends sim, if that doesn't work return phone
I had the problem aswell. I searched for the newest firmware in the internet (in my case I used the russian one). Then I extracted the modem file and made a tar file of it to flash it through odin. After I've done it everything worked fine.
If you want me to, I can do this tomorrow or saturday for u.
I flashed the original firmware (July 10, Nee), that did not help. What is the date of your firmware that works now?
I thinky june 2015.. I had the problem in February last year
It's me amz
Ok so basically I found out I need to flash my modem file or change the rom. But I have no PC to flash
.so I need a app which can root my phone or something without a computer. Kingroot didn't work. Anyone got any ideas on how I can do this? I've Google relentlessly. I need a developers help lol
I'll even pay them
Flacid Monkey said:
Maybe the network providers have changed 3g/4g details.
Check the website for correct details and update them in phone, if that doesn't work try a friends sim, if that doesn't work return phone
Click to expand...
Click to collapse
I returned my phone and they changed the "circuit board". So mine was a hardware problem.
I've rooted my phone and going to change my rom however the tar.md5 file I can't use as I can.tell use odin. I need the .img file to have the twrp bootloader. anyone know where I can download this?

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