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msingh

Hi Everyone,

I have upgraded my Sony Xperia L (C2104 model), after upgradation OS & build version as below.

Android version - 4.2.2, Basband version - 8930B-BAAAATAZQ-3228109-08-0031

Kernel version - 3.4.0-g74b701b-00042-ged52e3b-dirty, Build version - 15.3.A.0.26

after upgrade i am facing an issue with 3G, only 2G connection is working. when i have selected WCDMA only or WCDMA (preferred)/GSM mode than 3G connection totaly lost showing red cross sign.

Even i tried to add new APN settings from airtel customare support, my APN settings as below.

Settings --> more --> Mobile networks --> Access Point Names

APN Name - MI

APN - airtelgprs.com

Proxy/Port/Username/Passsword/Server/MMSC/MMS Proxy - Not set (Default value)

MCC - 404 (Default value)

MNC - 10 (Default value)

Authentication type - None

APN type - default

APN/APN roaming protocol - IPv4 (Default value)

Bearer - Unspecified

and also download APN settings from below options

Settings -> Xperia -> Internet Settings, but all these changes are not resolve 3g connection issue. This same issue was facing my colleague with Sony experia Z handset.

I am requesting to everyone & sony suport expert, kindly help me to sortout of this 3g connection issue.

Thanks in advance

Regards,

msingh

ariff95

I found the answer...u have to do the factory data reset roght after updating your phone to 4.2.2..it works...i did tried on my phone now

Kakavouras

After i update my xperia L c2105 to firmware 15.3.A.1.14 my 3g dont work at all.I make factory reset 10 times.I use pc companion to fix my firmware 3 times.Nothink can fix that problem.What can i do?

mosdim

Kakavouras, try to manually add APNs in mobile network settings

Guido1979

Ok, it seems to be working for me right now.

I did contact Sony. They senden me this link: http://www.sonymobile.com/nl/tools/%20update-service/

It's Dutch but you'll figure it out easily. After everything was downloaded and unpacked you start the Update Service and select your device. Then it will go back to the factory settings but it will not delete 4.2.2.

Here's the trick with my phone, i have the C2104 but when i did that, nothing was changed, still no data traffic.

Then i did previous steps again but i selected the C2105 and now it works. Hopefully tomorrow also but that was my problem.

I hope i helped you guys with this, good luck!

PS: My alias is different but i am the smae poster as Guido in previous posts.