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Cannot enable "Mobile network" after upgrade to latest FW

Hello,
i've just upgraded to the latest official OTA FW 3.08.405.3
Sense3.0 is great, but i cannot turn on mobile network anymore - i tried it both via Quick settings and Wireless settings menus - it cannot be enabled. And even worts is that it doesn't report any error msg and the 3G sign doesn't appear on status bar. There is noting in the log too...
Does anyone has the same problem?
I just wrote a mail to HTC support, but don't know if they track this as support channel...
This is terrible - i can't live without mobile network connection ...please help!
10x
Boby

This might sound weird, but is there anything in APN setting?

Try to mess with the toggles. I have had similar problem. I constantly turned airplane mode on/off and switched from GSM to WCDMA. Finally it goes, if this isn't related to apn. Hope i helped.

10x a lot guys !
it didn't recover APN settings after upgrade
I previously checked them, and assumed that check-box is selected, but actually it was not. It should be colored in green, but actually it was in grey

Unable to re-enable Mobile Network for data-only SIM Japan -- possible bug?
Having a similar problem, some more details:
PHONE:
I am using an unlocked (but unrooted) Incredible S from Virgin Mobile Canada with a data-only BMobile SIM in Japan (runs on DoCoMo's network apparently). Android 2.3.3 (Virgin Canada circa August 2011).
PROBLEM:
Mobile Network intermittently gets disabled and cannot be re-enabled normally. APN is fine, SIM card (phone number) is still detected. Toggling Airplane Mode or Wireless Network does not work, Select Automatically returns "unable to connect, try again later", Search Networks and choosing DoCoMo returns "Your SIM card does not allow a connection to this network".
SOLUTION:
Only reproducible solution is to remove data-only SIM, insert voice&data SIM (from my SoftBank phone), now Mobile Network is available so re-enable it, power down and replace data-only SIM. Once restarted Mobile Network automatically enables. Obviously this is not a convenient fix.
Once was fixed by randomly hitting network settings in frustration, but I have not been able to reproduce this solution.
OBSERVATION:
When on wireless, Mobile Network is also greyed out. When Wireless Network is disabled, Mobile Network automatically enables properly (for the most part, at least once I suspect it did not).
Thus I feel like it's a bug, either in OS or DoCoMo's network, but BMobile and HTC both point the finger at each other and have no useful suggestions for me.
ASIDE:
I hear Android 2.3.5 is available for Incredible S, perhaps this fixes the problem. However, this update has not appeared in my updater -- is it possible that because I'm unlocked I've lost access to the update server?
Thanks in advance for any suggestions.

mobile network disconnected
Have also the same problem, tried all the above suggestions but none works. Phone only shows limited service but with x on the signal bar. BUt when i try to tap the sim tool kit, it displays "SIM toolkit not ready or unsupported".
Hope somebody here can help me. Thanks

iqbelnas said:
Have also the same problem, tried all the above suggestions but none works. Phone only shows limited service but with x on the signal bar. BUt when i try to tap the sim tool kit, it displays "SIM toolkit not ready or unsupported".
Hope somebody here can help me. Thanks
Click to expand...
Click to collapse
+1

[Q] Unable to connect to Vodafone 3G (C5302)

Hi
I am in Kolkata India and recently switched from a 2G to a 3G plan with Vodafone Kolkata. Ever since then, my problem is that I am unable to connect to 3G using WCDMA. Neither voice nor data works. If I revert to GSM only, then voice and 2G works fine. Wifi has been fine and my saviour at home.
Phone details: Sony Xperia SP C5302 running Android 4.3 build 12.1.A.1.205.
I have confirmed with network service that it is not a SIM card issue, by carrying out the foll. tests already
1- Signal strength in the area of use : At the time when I am unable to connect to 3G, my colleague sitting in the next desk and using a Motorola phone is consistently able to connect to the same 3G network from his phone. So the network strength must be fine.
2- SIM damaged or dirty - I have obtained a new SIM card as replacement, after this problem started, from my service provider yesterday. But the problem is not resolved.
3- Manual network search and connection - I have tried this many times, using WCDMA only or WCDMA(Preferred) options. In either case, only on rare occasions, the phone was able to connect to a network. However, 3G data connection (H+ icon) did not show and then the phone disconnects from network. On most occasions, when I manually attempt to connect to the 3G network, I get the message "Could not register to the selected network. Make sure SIM is inserted."
3- Trying different SIM/Handset - I have tried out both options of switching SIM and handset.
- My SIM on Motorola handset - connects to H+
- Another SIM on my Sony - momentarily connects, then disconnects and then does not connect to network.
Please let me know if anyone has faced similar issues and found any resolution. Thank you in advance.

soumit.c said:
Hi
I am in Kolkata India and recently switched from a 2G to a 3G plan with Vodafone Kolkata. Ever since then, my problem is that I am unable to connect to 3G using WCDMA. Neither voice nor data works. If I revert to GSM only, then voice and 2G works fine. Wifi has been fine and my saviour at home.
Phone details: Sony Xperia SP C5302 running Android 4.3 build 12.1.A.1.205.
I have confirmed with network service that it is not a SIM card issue, by carrying out the foll. tests already
1- Signal strength in the area of use : At the time when I am unable to connect to 3G, my colleague sitting in the next desk and using a Motorola phone is consistently able to connect to the same 3G network from his phone. So the network strength must be fine.
2- SIM damaged or dirty - I have obtained a new SIM card as replacement, after this problem started, from my service provider yesterday. But the problem is not resolved.
3- Manual network search and connection - I have tried this many times, using WCDMA only or WCDMA(Preferred) options. In either case, only on rare occasions, the phone was able to connect to a network. However, 3G data connection (H+ icon) did not show and then the phone disconnects from network. On most occasions, when I manually attempt to connect to the 3G network, I get the message "Could not register to the selected network. Make sure SIM is inserted."
3- Trying different SIM/Handset - I have tried out both options of switching SIM and handset.
- My SIM on Motorola handset - connects to H+
- Another SIM on my Sony - momentarily connects, then disconnects and then does not connect to network.
Please let me know if anyone has faced similar issues and found any resolution. Thank you in advance.
Click to expand...
Click to collapse
I think that there's an option to use 2G instead of 3G in the settings menu, have you checked to see if that is enabled?

Plum Crazy said:
I think that there's an option to use 2G instead of 3G in the settings menu, have you checked to see if that is enabled?
Click to expand...
Click to collapse
That is the WCDMA option I've mentioned about, there was no other setting for this.
Anyways, it turned out to be a hardware problem. Got the "mother-board" replaced for free as it was under warranty & now working fine!

soumit.c said:
That is the WCDMA option I've mentioned about, there was no other setting for this.
Anyways, it turned out to be a hardware problem. Got the "mother-board" replaced for free as it was under warranty & now working fine!
Click to expand...
Click to collapse
Good to see that you've sorted out the problem!

[Q] Sony Xperia SP - GSM Problem (no call/sms)

My Sony Xperia SP has GSM service problem, network singles are ok, but can't make call or send sms. Data services (2G, 3G, 4G) work fine.
When I try to make call, phone shows 'Connection problem or invalid MMI code'.
Phone reads SIM card properly, SIM tool kit menu opening perperly and data working fine. Tried with different SIM Cards, but same result.
Tried change Network Mode to GSM only and others, but doesn't work.
Flashed with different firmwares, unlooked bootloader and installed custom rom, but still doesn't work.
Testing -> Phone information menu *#*#4636#*#* shows GSM service: Out of service.
Pictures of service menu *#*#7378423#*#* and other pictures attached.
I will be really thankful if anyone can guide me to solve this problem.

[Q] Your sim card does not allow a connection to the network

I have a moto X 1st gen here in India. Its unlocked,not rooted. One fine day it thrower me an error "your sim card does not allow a connection to a network". And I am without network in my mobile.
My IMEI is same as in the battery
Device is not rooted
Sim card works fine in other mobiles
Tried different sim cards but still same problem
Didn't fiddled with any network settings.
After reading through XDA threads I did
Cleared data/cache
Restored the stock firmware again.
Did that network menu reset to switch radio on and off many times
Not able to get any network signal at all. Is there anything I am missing?

Attached screenshot from *#*#4636#*#* menu

Sim card is locked after flash.

Hello lads,
I am new to XZ2 modding and so on, and I've came here for any help.
I tried flashing (with newflasher) stock firmware a lot of times, to finally get LineageOS to work with Gapps.
Problem now is, that the phone says it detects no signal and that it is emergency calls only and doesn't allow regular calls.
I know it does detect a signal because, if I go into service settings, it does in fact show a signal frequency.
Is there any way to fix this issue software wise?

is it asking for the unlock code?
try to add the APN settings of your network in your Settings > Mobile network