Database Develop

No 3G since FRF83

Any solution?
Only GPRS/EDGE does work, if 3G is available, it disconnects automatically until 3G isn't available.
Solution: Set to 2G-Only :-(
Anyone has the same problem?
I didn't have this problem with FRF 72.
Provider: Sunrise Switzerland
Radio: 32.36.00.28U_4.06.00.12_7

Have you tried going into your phone settings from *#*#4636#*#* and setting it to wcdma only? I did that on mine not too long ago and no more dropping to edge for me!
-------------------------------------
Sent via the XDA Tapatalk App

andi86 said:
Any solution?
Only GPRS/EDGE does work, if 3G is available, it disconnects automatically until 3G isn't available.
Solution: Set to 2G-Only :-(
Anyone has the same problem?
I didn't have this problem with FRF 72.
Provider: Sunrise Switzerland
Radio: 32.36.00.28U_4.06.00.12_7
Click to expand...
Click to collapse
does it lose complete signal? or does it show 3g still but just not doing anything?
Mine was working at first after flash. Then at about 2am it just kept trying to load then times out. Still shows 3g but just dont do anything. Im hoping its just tmobile messing with their towers... I dont see why it would work at first then not now..

The problem is, that i can only have a internet connection, when the phone is logged in into a gsm or edge network.
as soon as wcdma is available, the phone disconnects from the internet.

the signal is always available, but it looses the internet connection when it changes to 3G mode.
when the phone changes from 2G->3G mode, i see for 1s the 3G icon and then no icon will bi there.
when it changes back from 3G->2G, the EDGE/GPRS icon is visible again.

andi86 said:
the signal is always available, but it looses the internet connection when it changes to 3G mode.
when the phone changes from 2G->3G mode, i see for 1s the 3G icon and then no icon will bi there.
when it changes back from 3G->2G, the EDGE/GPRS icon is visible again.
Click to expand...
Click to collapse
ok thanks for clarification. My problem is different. I think related to phone company.. I still show the 3g signal and even have bars, but the pages dont load and eventually gives me the check your service and try again alert....
So Im hoping soon its working again for me... And I hope you as well figure it out.....

Thank you Good luck!

Had the same issue after update, did *#*#4636#*#* and noticed I was set to GSM only. Set it to WCDMA preferred and now it's good.

Thank you very much, thats the solution!!
Andi
ezhangin said:
Had the same issue after update, did *#*#4636#*#* and noticed I was set to GSM only. Set it to WCDMA preferred and now it's good.
Click to expand...
Click to collapse
Sent from my Nexus One using XDA App

ezhangin said:
Had the same issue after update, did *#*#4636#*#* and noticed I was set to GSM only. Set it to WCDMA preferred and now it's good.
Click to expand...
Click to collapse
Thank you. Updated to FRF83 this morning and I've had a full 3g signal, just couldn't pull data all day. Could over edge. Sure enough, GSM only was selected.
AT&T N1.

I'm having the same issue on a non-rooted phone on T-Mobile. No 3G after the FRF83 update. Full bars of service and 3G displayed in the status bar. Dropping to Edge only works but there is no data with 3G.

Lost Dog said:
I'm having the same issue on a non-rooted phone on T-Mobile. No 3G after the FRF83 update. Full bars of service and 3G displayed in the status bar. Dropping to Edge only works but there is no data with 3G.
Click to expand...
Click to collapse
Same issue here.
Switching to WCDMA preferred doesn't work for me though.....any help is welcome

I think it's a hardware problem with a lot of N1's.
Mine was ok the first 2 months, and later, 3g not working. This is driving me crazy ):
I have tried everything. Change the simcard, I did a reset of the data with my telcon, and nothing happens.
I've seen these problems on many N1's.
I hope google / htc release a fix for this problem.

Lost Dog said:
I'm having the same issue on a non-rooted phone on T-Mobile. No 3G after the FRF83 update. Full bars of service and 3G displayed in the status bar. Dropping to Edge only works but there is no data with 3G.
Click to expand...
Click to collapse
how bout checking your bands in the service menu. so *#*#4636#*#* -> phone info -> press the menu key for more options -> select bands -> choose one appropriate for your region (ie "USA BANDS").
If all else fails do a factory reset by going to the settings -> privacy -> restore factory defaults.. of course do a backup/sync/whatever before just to make sure you can get all your apps back.
There's other ways to do a factory reset via the bootloader .. its under recovery and you press up volume or the trackball I think and you can just select all the clear/erase settings there and that should clear out everything on the phone's internal storage.
The factory reset worked for me (via bootloader) when I upped from update-1 to FRF50 and didn't have any data icon next to my signal strength. Could call out but couldn't get data.
Hope that helps.

jasonpich said:
I think it's a hardware problem with a lot of N1's.
Mine was ok the first 2 months, and later, 3g not working. This is driving me crazy ):
I have tried everything. Change the simcard, I did a reset of the data with my telcon, and nothing happens.
I've seen these problems on many N1's.
I hope google / htc release a fix for this problem.
Click to expand...
Click to collapse
Check your APN settings. Do a full factory reset from the bootloader. If nothing works you should call tech support again. Most 3g issues where you have issues with connecting are service/signal level related. I *****ed early about my 3g issues on tmobile and it was the network as they've pretty much gone away with improving the backhaul in my area for HSDPA+ or updates to the phone's radio.
HTC is really really really cool about swapping phones and repairing them. If you feel you have a nexus that has hardware issues call them. I did this 3 times already (one time for minor cosmetic issues with the refurb they sent) and I couldn't be happier about how willing they were to replace/repair the phone. It turns out I really didn't have any issues with them at all.. with any issues with hardware from the second refurbished phone. It was service or software related and I'm happy to say with updates/tmobile service improvements I couldn't be happier with this phone.

blisk said:
Check your APN settings. Do a full factory reset from the bootloader. If nothing works you should call tech support again. Most 3g issues where you have issues with connecting are service/signal level related. I *****ed early about my 3g issues on tmobile and it was the network as they've pretty much gone away with improving the backhaul in my area for HSDPA+ or updates to the phone's radio.
HTC is really really really cool about swapping phones and repairing them. If you feel you have a nexus that has hardware issues call them. I did this 3 times already (one time for minor cosmetic issues with the refurb they sent) and I couldn't be happier about how willing they were to replace/repair the phone. It turns out I really didn't have any issues with them at all.. with any issues with hardware from the second refurbished phone. It was service or software related and I'm happy to say with updates/tmobile service improvements I couldn't be happier with this phone.
Click to expand...
Click to collapse
Thanks blisk, but the thing I don't understand is why Blackberry 9700 with T-Mobile bands, doesn't have problems at all ?
By the way, I rooted my phone , so the thing with the warranty it's complicated

I had it happen last night at work all night, but when i got home i checked my wife's tp2 and it also was doing the same thing so for levity wasn't the phone but tmobile. They started worming the same time also.... I think its tmobile.

Hello, I had the same problem with my imported n1. I'm using the tmobile version non rooted fully stock manually updated to frf83. I did a *#*#4636#*#* and selected wcdma only, rebooted and couldn't connect to my gsm network. Went in again and did a wcdma preferred, rebooted, and I works better, still changes fast to edge and G, but less often, I'm still trying it but I have high hopes its gonna be ok

Mmmm i did have problems with 3G too after pushing FRF83, but i found out that for some reason the APN settings weren't set correctly after the update. In my case the port setting after the proxy of the APN wasn't set, i changed to the correct value and it worked.
In conclusion, check your APN settings.

Just went from FRF72 to FRF83 and it's working fine.
I'm currently set to GSM auto (PRL) in the *#*#4636#*#* and I didn't change it to that after putting on FRF83.

[Q] S III mini network issue

Hi guys,
I own an i8190, baseband : I8190XXALJL and I encounter frequent network outage.
Although the signal strenght indicator shows 3-4 bars, I cannot be called, cannot call and data is not being fetched.
On battery usage app, the network is most of the time "green".
On any other phone around me (blackberries, iphones, SGS II and III), and on the same network the problem does not reproduce.
If I turn the phone to airplane mode, and then back on, I am able to call, send mails so on and so forth.
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?

I'm currently running the ALL2 baseband, but previously had both the ALJL and the ALK6 ones and didn't encounter any such issue...
Before sending it back you could try with a different SIM card, maybe yours is acting up (it sometimes happens, especially with old SIMs).
Seeing how nobody complained of a similar issue though, I don't think that changing your baseband will have an impact, but if you'd like to give it a try you can download original firmwares (that contain the baseband) from here: http://www.sammobile.com/firmware/. In order to install them, just follow the steps in the root thread.

Will do so. I'm going to pit-stop my SIM card @ Vodafone and let you know about it.
It's strange that this happens only deep inside buildings (eg. offices, malls, etc..).
When this happens, usually the data activity indicator disappears OR the S3 mini is using 3G frequencies (not H, not G, but 3G)

Just changed my sim card and the issue still persists...
It's driving me nuts. My feeling is that the S3 mini doesn't lock on a network cell when 2 are available with similar coverage.
Will upgrade to the latest build and let you know about it :banghead:
Sent from my GT-I8190 using Tapatalk 2

And now the handset runs XXALL2 from vodafone uk.
I'm curious if the phone will have that network issue furthermore.
Happy Holidays!!
Sent from my GT-I8190 using Tapatalk 2

bogdangr said:
Hi guys,
I own an i8190, baseband : I8190XXALJL and I encounter frequent network outage.
Although the signal strenght indicator shows 3-4 bars, I cannot be called, cannot call and data is not being fetched.
On battery usage app, the network is most of the time "green".
On any other phone around me (blackberries, iphones, SGS II and III), and on the same network the problem does not reproduce.
If I turn the phone to airplane mode, and then back on, I am able to call, send mails so on and so forth.
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
Click to expand...
Click to collapse
I'm exactly in the same situation . Please let me know if your new firmware solves the problem.
Tks,

ci6i said:
I'm exactly in the same situation . Please let me know if your new firmware solves the problem.
Tks,
Click to expand...
Click to collapse
So far there's no difference. Where I live the network coverage is pretty bad, but it doesn't "disconnect in the background".
Only at the office I can test it out for sure or inside massive buildings.
ci6i, go ahead and update; install kies (for drivers only ), get odin3 1.87 and flash it with XALL2 from samfirmware.
Lately I see there is XALL3 available for some asian countries.
I still think that my BlackBerry 9810 is a tank. unfortunately vodafone romania doesn't sync emails two ways via BIS so... :crying: I had to get back to samsungs...

Well, i understand to lose signal if network coverage is bad, but my phone gets "network stuck" in the middle of town. I noticed this few times: at job, the phone stands on the table near me, and i receive sms about missed calls (i have voice calls diverted to voice mail when unreachable). If i try to call or browse the net at this moment, it's impossible until i set airplane mode on then off. All this time, the phone shows full network signal and HSPA data connection.
I'll try to change the firmware after hollidays.

As mentioned above, try to change firmwares (to XXALL2), I've also noticed some network drops when I'm at home (however this is expected in my case), but when I installed this firmware, I noticed some signal gain (full on 2G and +1-2bars on 3G signal).

Hi again.
The same issue even on xall2
Just happened again today in a crowded place.
It goes to "3G" from "H" and then it's gone off the network.
Will try with XALL3 although there is a small improvement concerning "sticking to the network carrier". It seems it'a hard job to get a call when in coverage area...
If still no success, I'll loose my patience with this Sammy...
See ya!
Sent from my GT-I8190 using Tapatalk 2

You get SMS because they use a dedicated network bandwidth for this technology and apparently the S3 mini does not loose connection on this communixation channel.
It appears that S3 mini is dropping voice and data, but not sms and CB (cell broadcast).
Sent from my GT-I8190 using Tapatalk 2

LJL version. No drops. Sometimes when i am on edge of 3G coverage area
Sent from my GT-I8190 using xda app-developers app

Hi, i also have the problem with vodafone Romania. I can't place calls or use data connection. After reboot everything is ok. I tried to switch to Airplane mode and back, but no results.

Same problem over here
bogdangr said:
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
Click to expand...
Click to collapse
Hi bogdangr,
I have the same problem with my SIII mini. From time to time, after working normally, it loses the H or 3G symbol and shows about two or three signal bars, but if I try to make a call or receive one the operation fails miserably. The airplane mode trick doesn't work for me, and I have to reboot the phone to get it working again.
I've updated to the latest official firmware, but the problem is still there. Have you found a solution for this or anybody has more ideas of things to try?
Thanks you all,
MFC

I'm on VF RO, too.
Crappy phone, what can I say.
If it can't follow a network where there is sufficient coverage...

miguelfc said:
Hi bogdangr,
I have the same problem with my SIII mini. From time to time, after working normally, it loses the H or 3G symbol and shows about two or three signal bars, but if I try to make a call or receive one the operation fails miserably. The airplane mode trick doesn't work for me, and I have to reboot the phone to get it working again.
I've updated to the latest official firmware, but the problem is still there. Have you found a solution for this or anybody has more ideas of things to try?
Thanks you all,
MFC
Click to expand...
Click to collapse
Hi Miguel,
The only workaround for this issue (at least for me) is to keep it in GSM mode (no "AUTO mode", no "WCDMA only").
So the crappy phone won't have to switch frequencies and I can get phone calls (I start considering a luck when the phone rings...)
I'm on 4.1.2 now baseband I8190DXALL3 (latest on samfirmware) and still the same.
You just don't want to know how's everything downloading limted to GPRS
BR,
Bogdan

Does anyone know what's that *# code that enables service / engineering mode ?
I want to select on which network frequencies is the phone allowed to work.
I want to disable 3G mode and leave GPRS, EDGE, and HS(D)PA only.
The reason is that when the issue appears, S3 mini switches from "H to 3G" and "G to 3G" and then it's gone;
Although there are moments when it can fetch data with network on 3G coverage without problems...

The code is *#*#info#*#* but it doesn't work .
I don't think it's a good ideea to disable those settings. Maybe it's a temporarily problem and i know Vodafone is testing/launching 4G coverage.
For me, this network issue is happening once in a week. How often do you lose phone signal ?

ci6i said:
The code is *#*#info#*#* but it doesn't work .
I don't think it's a good ideea to disable those settings. Maybe it's a temporarily problem and i know Vodafone is testing/launching 4G coverage.
For me, this network issue is happening once in a week. How often do you lose phone signal ?
Click to expand...
Click to collapse
I found out the service code but the RF setup is not "sufforted".
Vodafone has implemeted already 4G in selected areas but it's not about that. On blackberry, iphone and nokia this is not happening.
As a frequency... 3-5 times a day while I'm at the office.
Sent from my GT-I8190 using Tapatalk 2

I'm using it with Orange Spain. I will try using the phone this weekend with another operator to find out if the problem is operator related.

[Q] Xperia V reboot issue with LTE network

I noticed that the phone randomly rebooted from it's idle screen. Then, after checking it out with my friends' phones, I found out that they also have the issue. Then I found out this only happened when it was in the LTE coverage.
So after some traces in the mobile switch with the help of a collegue, I was able to pinpoint the issue towards the LTE's CS fallback method.
(CS fallback is what happens when your network does not support voice over LTE, thus, the phone automatically falls back to the 3G network.)
It happens when I make a call or receive a call. When the switch pages the phone, it sometimes cannot fallback to the HSPA or 3G network. It makes the phone get stuck in some way, I think some watchdog in the chipset reboots it.
Have any of you experienced it? Do any experienced developers here know of a workaround? if you want logcat or any other traces, I can provide them.

Sony Xperia V reboot when LTE network
tharaka said:
I noticed that the phone randomly rebooted from it's idle screen. Then, after checking it out with my friends' phones, I found out that they also have the issue. Then I found out this only happened when it was in the LTE coverage.
So after some traces in the mobile switch with the help of a collegue, I was able to pinpoint the issue towards the LTE's CS fallback method.
(CS fallback is what happens when your network does not support voice over LTE, thus, the phone automatically falls back to the 3G network.)
It happens when I make a call or receive a call. When the switch pages the phone, it sometimes cannot fallback to the HSPA or 3G network. It makes the phone get stuck in some way, I think some watchdog in the chipset reboots it.
Have any of you experienced it? Do any experienced developers here know of a workaround? if you want logcat or any other traces, I can provide them.
Click to expand...
Click to collapse
Hi Tharaka,
Im exerience this behaviour since september of this year, in Spain with my carrier Yoigo, i have solved partially changing it to use only WCDMA/GPRS. I have this phone since May of this year, first in Japan where it worked very well, and then i move to Spain in June, during June - Sept the phone worked very well, then it began to reboot very often.
Hope they solve this soon...

josealb85 said:
Hi Tharaka,
Im exerience this behaviour since september of this year, in Spain with my carrier Yoigo, i have solved partially changing it to use only WCDMA/GPRS. I have this phone since May of this year, first in Japan where it worked very well, and then i move to Spain in June, during June - Sept the phone worked very well, then it began to reboot very often.
Hope they solve this soon...
Click to expand...
Click to collapse
Hi
I've got the same problem with my xperia v since monday in france (free mobile).
No problem when i set WCDMA instead of LTE.

We were able to fix this from the carrier side in Sri Lanka. It should be done from the carrier. If I remember correctly, this was done using allowing something like data handoff. If anyone is interested in whats needed in the carrier side, ping this thread.

tharaka said:
We were able to fix this from the carrier side in Sri Lanka. It should be done from the carrier. If I remember correctly, this was done using allowing something like data handoff. If anyone is interested in whats needed in the carrier side, ping this thread.
Click to expand...
Click to collapse
what was the issue? I have similar problem with Xperia M Dual , but with 3G connection. Edge is working fine, but with 3G the Phone keeps restarting. My Provider 3 / Drei austria / Hutchinsons Austria. With other providers there is no issue.

bump
any updates?

S6 Edge SM-G925V LTE not working after Nougut update on non-verizon.

My S6 Edge SM-G925V worked perfectly back in India on Vodafone Band 3 LTE until marshmallow update. In the Nougat update verizon/samsung has some issue with their cellular firmware - after that i am never able to camp to any LTE network.
It was running smooth until the G925VVZW4CPD2 (6.0.1) update, all settings are ok. I tried the other popular network sim of JIO ( Band 40) that also is same. Bigger problem is that the modem crashes far too many times on the 2g/3G also. I can see the networks bar go and come in a loop again and again, making phone useless.
Verizon surely has messed something up with the latest 7.0 update, which they deny (have contacted them). There are couple of forums in Sammobile on the same. No luck with solution.
Just yesterday got one more update of 2GB which brings it to one update over 7.0. No luck. Still no LTE camping.
Do not suggest to check the APN settings i have checked they good. Anythings else or you also facing same issue ?
Can anyone show how to get the blocked service menu (via codes) working ?

Got the same problem. I immediately updated my phone from Marshmallow to Nougat via system settings.
I got the S6 Edge Verizon. Made several readings and found out that the device is unlocked, so I bought a local LTE SIM card (SMART) here in the Philippines and inserted it to the device. I applied the appropriate APN settings for the LTE and tested the connection. No luck. I wasn't able to test the LTE connectivity when I was in Marshmallow though.
I was able to connect to the internet via 3G connection and IT WAS WAAAY TO SLOW (0.5 mbps)
I tested the same settings with the Galaxy S5 (Verizon), still with a local LTE SIM card (SMART). LTE connection was immediately established (15+ mbps... not bad). This proves that my area is covered by LTE and the problem is on the S6 Edge. Is there a way to fix this?

anirudhgargi said:
My S6 Edge SM-G925V worked perfectly back in India on Vodafone Band 3 LTE until marshmallow update. In the Nougat update verizon/samsung has some issue with their cellular firmware - after that i am never able to camp to any LTE network.
It was running smooth until the G925VVZW4CPD2 (6.0.1) update, all settings are ok. I tried the other popular network sim of JIO ( Band 40) that also is same. Bigger problem is that the modem crashes far too many times on the 2g/3G also. I can see the networks bar go and come in a loop again and again, making phone useless.
Verizon surely has messed something up with the latest 7.0 update, which they deny (have contacted them). There are couple of forums in Sammobile on the same. No luck with solution.
Just yesterday got one more update of 2GB which brings it to one update over 7.0. No luck. Still no LTE camping.
Do not suggest to check the APN settings i have checked they good. Anythings else or you also facing same issue ?
Can anyone show how to get the blocked service menu (via codes) working ?
Click to expand...
Click to collapse
I have the same problem, since the update I can't connect to LTE, I've tried forcing the 4g/lte network but it simply wont connect.

so no answer to this yet huh? issue with wifes phone so i cant call her during the day but text are still getting through thank god!

I installed the new update via the smartswitch. Sw ver: NRD90M.G925VVRU4DQF3
This also did not solve the LTE camping issue on international roaming as stated in original thread, infact the modem crashes so often on 2G/3G also (GSM/UMTS)
Anyone here from verizon/samsung who can pass on the message to relevant folks that there is a major issue which they have not addressed. I am surprised such a common bug was not tested before releasing offical binary for update !! #shame.

Any updates?
anirudhgargi said:
My S6 Edge SM-G925V worked perfectly back in India on Vodafone Band 3 LTE until marshmallow update. In the Nougat update verizon/samsung has some issue with their cellular firmware - after that i am never able to camp to any LTE network.
It was running smooth until the G925VVZW4CPD2 (6.0.1) update, all settings are ok. I tried the other popular network sim of JIO ( Band 40) that also is same. Bigger problem is that the modem crashes far too many times on the 2g/3G also. I can see the networks bar go and come in a loop again and again, making phone useless.
Verizon surely has messed something up with the latest 7.0 update, which they deny (have contacted them). There are couple of forums in Sammobile on the same. No luck with solution.
Just yesterday got one more update of 2GB which brings it to one update over 7.0. No luck. Still no LTE camping.
Do not suggest to check the APN settings i have checked they good. Anythings else or you also facing same issue ?
Can anyone show how to get the blocked service menu (via codes) working ?
Click to expand...
Click to collapse
Any updates on a solution for this? I finally got around to updating my G925V OTA with Verizon, and I've run into the same issue. I hope I don't have to roll back the update manually but I guess I might have to because I have searched for a solution everywhere and have tried everything but nothing works.
Exact same issue, modem crashes constantly (I'll have signal on H/H+ only, and then it drops. Signal comes back. Then drops), and I never get LTE.
Tried all the obvious solutions (e.g. reboot, factory reset, network reset, clear cache partition, boot into safe mode, reprovisioning from carrier, confiming IMEI with carrier etc.) but nothing works.
What did you guys figure out?

lorenzopromot said:
Any updates on a solution for this? I finally got around to updating my G925V OTA with Verizon, and I've run into the same issue. I hope I don't have to roll back the update manually but I guess I might have to because I have searched for a solution everywhere and have tried everything but nothing works.
Exact same issue, modem crashes constantly (I'll have signal on H/H+ only, and then it drops. Signal comes back. Then drops), and I never get LTE.
Tried all the obvious solutions (e.g. reboot, factory reset, network reset, clear cache partition, boot into safe mode, reprovisioning from carrier, confiming IMEI with carrier etc.) but nothing works.
What did you guys figure out?
Click to expand...
Click to collapse
waiting for the solution as well. But i rolled back to 5.1.1

Can't add APNs - Therefore, almost no signal/service.

Hello,
I'm having a hell of a time with 90% of the day without signal or service on my XZ3.
Same SIM on my old XZ1 works fine (Sony Fan). Another SIM on XZ3 does not pick up signal either. There is some issue with XZ3.
I wanted to add more APNs, but I face this error.
https://ibb.co/3r8qb3M
Using this SIM on an XZ1, configures 3 APNs and I was able to add another one using APN type default. Signal picks up great on XZ1!
On XZ3, I only get 1 APN automatically and I'm not able to add more due to the error message.
Seems as my XZ3 has some problem with 2G/3G. The only time of the day I was able to pick up signal was 4G+.
I'm on latest firmware. Same situation happened on the previous firmware .672.
Any help?
Thanks!

This was so weird.
Downgraded to Android 9. I was able to edit and add APNs. Signal still has issues although I was getting 2G singal fine for a while.
Back to Android 10. APNs created were deleted and I can't add them back again receiving the same error. No 2G/3G.
Back to XZ1. Signal picks up by charm
How can XZ3 signal suck so much vs XZ1?

justoar said:
This was so weird.
Downgraded to Android 9. I was able to edit and add APNs. Signal still has issues although I was getting 2G singal fine for a while.
Back to Android 10. APNs created were deleted and I can't add them back again receiving the same error. No 2G/3G.
Back to XZ1. Signal picks up by charm
How can XZ3 signal suck so much vs XZ1?
Click to expand...
Click to collapse
Did you do a fullwipe on the newest 10.0 stock firmware?

Yes. I tried full factory reset before downgrading to android 9 and then going back to 10.
I really don't know if APNs do the trick because XZ1 and now S10e and A30s before have great connectivity with just 1 APN.
Its the baseband. And Argentina may not have the best signal... but why XZ3 was picking 4G+ for a while and then literally dies. As if the antenna turns off and on...who knows.
Truth is. No Sony support, no way to talk with people that handles the firmware.

justoar said:
Yes. I tried full factory reset before downgrading to android 9 and then going back to 10.
I really don't know if APNs do the trick because XZ1 and now S10e and A30s before have great connectivity with just 1 APN.
Its the baseband. And Argentina may not have the best signal... but why XZ3 was picking 4G+ for a while and then literally dies. As if the antenna turns off and on...who knows.
Truth is. No Sony support, no way to talk with people that handles the firmware.
Click to expand...
Click to collapse
And what happens on a fresh fullwiped 10.0 ROM?
I sadly assume that you may have a defective hardware.
Oooor does your provider use a not supported frequency?
(But I doubt that, today 4G hardware supports almost every LTE frequency in the world.)

Fresh fully wiped experienced the same signal issue as before.
My H9436 supports all the bands the company does. Why would my old dual XZ1 would get signal so easy and the XZ3 won't? Its so frustrating...
For now I sadly think some kind of faulty hardware.
I will try again on July with June update in. I'm out of ideas.
I would love to be able to make tests to see on which bands is the signal picking up, maybe there are some which do not.
Or even more, when ot picks 4g I have over 100dbms of strength.
Thanks