topic Re: Serious call/network drop in 3G mode in XPERIA archive

Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 16:02:10 GMT

Issue: In WCDMA only/preferred mode, call/network drop frequently

Current Android version: 2.3.4

Best solution provided by service centre: Switch manually between 2G(for calls) & 3G(for data)

Customer Care ticket Id: 93172166

WorkOrder No: SE312TR111983

I have been following the case with service centre & customer care since 2 weeks but have been provided a sub-standard solution as mentioned above.

Please do not mark the thread as "Assumed Answered", I ll get back asap.

Scenarios checked:

1. 3G signal receptivity in my area: Confirmed OK by operator

2. Used same SIM in another phone: Works fine on 3G

3. Used another SIM on ray: Same issue with 3G mode

Re: Serious call/network drop in 3G mode

MarlonUk1 — Tue, 03 Jul 2012 16:04:19 GMT

i assume they did reset your phone? since when did the problem occured?

Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 16:04:41 GMT

Model: Xperia Ray

Purchase: Feb., 2012

Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 16:05:34 GMT

They did, but the phone still suffers call/network drops

Re: Serious call/network drop in 3G mode

MarlonUk1 — Tue, 03 Jul 2012 16:18:59 GMT

so you had the problem since purchase? did the dropping issue persist even when using the phone outside a building?

Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 16:52:48 GMT

Yes, it happens in open spaces also.

Issue has been there since purchase, but after upgrading to ICS & eventual downgrade to current 2.3.4 by service centre made the issue worse.

Re: Serious call/network drop in 3G mode

Uliwooly — Tue, 03 Jul 2012 16:55:36 GMT

there are 2 possible reasons

1) poor coverage area

2) you need to replace your SIM card

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Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:01:25 GMT

I have checked with two major operators in India, issue is same under either scenario.

Issue is observed irrespective of the area I use the phone, rather I used the same SIM in another handset...works fine

Re: Serious call/network drop in 3G mode

Uliwooly — Tue, 03 Jul 2012 17:05:23 GMT

was the other phone an smartphone? still I suggest that you get a new SIM card to narrow down the issues, also go to

settings > about phone > status > what's your signal strength

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Re: Serious call/network drop in 3G mode

MarlonUk1 — Tue, 03 Jul 2012 17:09:08 GMT

didn't the sony center thought of it as hardware prob? did you inform them again about the peristent problem?

Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:20:35 GMT

signal strength: -83dbm 15asu

yes, I used Samsung waveII. I was able to browse(on 3G+) & call simultaneously without any issues on that.

Re: Serious call/network drop in 3G mode

Uliwooly — Tue, 03 Jul 2012 17:21:53 GMT

it might be a hardware issue, there's no other option but to take it back

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Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:22:48 GMT

They say no h/w issues with the handset as per their debug tests.

I did inform them, but that particular service centre(nearest to my place) are rude to accept any argument, they insist best job has been done

Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:25:19 GMT

I have been in UMTS protocol verification for various brands, so even I suspect that but having contacted 2 service centres & either insisting on "manual switch between 2G-3G". I am stuck on how to take this fwd.

Re: Serious call/network drop in 3G mode

MarlonUk1 — Tue, 03 Jul 2012 17:26:07 GMT

hmm, that's bad of them,. do you have another sony center? try asking for second opinion. how about using other network? because if they did a hardware check, then we rule out hardware prob. that leaves us with network.

Re: Serious call/network drop in 3G mode

Uliwooly — Tue, 03 Jul 2012 17:27:24 GMT

do you have it as WCDMA preferred?

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Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:28:06 GMT

Yeah, same issue

Re: Serious call/network drop in 3G mode

Uliwooly — Tue, 03 Jul 2012 17:30:25 GMT

and you have the correct APN settings?

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Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:32:03 GMT

Absolutely correct, otherwise it wudn't connect at all.

Issue is call/network instability in 3G mode & not that it doesn't connects

Re: Serious call/network drop in 3G mode

kapsdeep_ — Tue, 03 Jul 2012 17:33:17 GMT

I chekced with Airtel & Vodafone networks....kinda running out of wits now