Originally Posted by vishal72345
Hi guys need real help.... I have updated my nexus s 9023 to Jelly bean 4.1.1 and after update it acting funny... there is network signal ... its not picking up any network signal at all ... have reset and tried but still ........ pl help guys feel totally helpless
Try doing a reset from the Recovery menu, 'wipe cache', 'wipe data', and then reboot from the Recovery menu. The phone will be wiped clear and then you'll need to setup Jelly Bean from scratch.
Google for 'recovery menu i9023' for instructions if you don't know how to do it.