Galaxy S3 not Working on GSM/WCDMA Auto Mode

[erich.schuette]

Hi,

I have a problem with my SGS3.

After installing Android 4.1.1 Jelly Bean, the phone would refuse to call out while on HSDPA.
When I set the network to GSM Only, the calls would work fine, but no HSDPA.

I can set between them if I need to use HSDPA, but before the Jelly Bean update it worked fine.

After that, I installed a custom ROM, South African (XFV) version of Jelly Bean, back to stock rom etc, I just can't get it to work on GSM/WCDMA Auto mode.

Please, any advice?

Regards,
Erich

 

[makaveli662]

hi was this issue resolved?
as i am having the same issue

regards,

 

[erich.schuette]

Yes, I downloaded a new modem.

Sorted everything out, but beware, it resets everything on your phone, including ALL your internal memory.

http://forum.xda-developers.com/showthread.php?t=1886543&page=17

Erich

 

[makaveli662]

ok cool but i cant find the odin version for that modem, only cwm version...do i need to root the phone?

 

[erich.schuette]

ok cool but i cant find the odin version for that modem, only cwm version...do i need to root the phone?

I'm not sure how I did it.

IIRC, I updated via Odin, updated the modem via Odin, then loaded the custom rom. the custom will be rooted by default, but it's not needed.

 

[makaveli662]

Hi Eric thank you for your reply.but I'm struggling here...managed to download the modem and install but no luck.could u send me a screen dump of ur phone settings.base,version etc...

 

[erich.schuette]

I'm sorry, I can't really help anymore.
I did that a few months ago, and I don't remember exactly what I did.

Here's a screenshot, hope it helps.

http://rapidshare.com/files/1405325221/Screenshot_2012-10-05-11-24-06.png