Step 5: If there is an update available, the Capture App should prompt you to update your camera upon selecting your camera from the list of devices. The camera will display "Transferring Files to" your camera at this time.Step 6: The App will present any available release notes. Step 9: The camera will power off and on a number of times as it updates its software.To be exact I used the Installatron Tool (installatron.com) provided by my hoster, which executes steps similar to "manual update" I guess. I'd suggest turning on the built in developer tools in your browser and monitoring the network requests being made.
Well, this doest not really answer the question, but this is what I finally did, thus accepting this answer.
With that new SIM in place, the upgrade should go off without a hitch.
2014-04-22T INFO update Update started by user Super User (279). 2014-04-22T INFO update File Joomla_3.2.x_to_3.2.3-Stable-Patch_successfully downloaded.
Figure A There are no apps or settings you can install or configure that will solve this issue.
The only way to correct it is by replacing your phone's SIM card. So, before you waste any more time trying to get your phone updated, call your provider and tell them you need a replacement SIM card. If they instruct you to reset the phone to factory defaults, inform them that solution will not work.