Force firmware update

I did a firmware update on my raspberry pi only for it to fail half way through (mistakingly did it over wireless) however it still showed as latest version
uname -a
Linux raspberrypi 3.10.25+ #622 PREEMPT Fri Jan 3 18:41:00 GMT 2014 armv6l GNU/Linux[/code]

but functionality that was supposed to be added in this update still didn’t work, so I managed to do a forced update using

sudo mv /boot/.firmware_revision ~
sudo rpi-update

and this time everything went as expected

*** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
*** Performing self-update
% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
Dload  Upload   Total   Spent    Left  Speed
100   135  100   135    0     0    187      0 –:–:– –:–:– –:–:–   243
100  7026  100  7026    0     0   7273      0 –:–:– –:–:– –:–:–  7273
*** Relaunching after update
*** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
*** We’re running for the first time
*** Backing up files (this will take a few minutes)
*** Backing up firmware
*** Backing up modules 3.10.25+
*** Downloading specific firmware revision (this will take a few minutes)
% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
Dload  Upload   Total   Spent    Left  Speed
100   168  100   168    0     0    164      0  0:00:01  0:00:01 –:–:–   233
100 21.1M  100 21.1M    0     0   615k      0  0:00:35  0:00:35 –:–:–  705k
*** Updating firmware
*** Updating kernel modules
*** depmod 3.12.20+
*** Updating VideoCore libraries
*** Using HardFP libraries
*** Updating SDK
*** Running ldconfig
*** Storing current firmware revision
*** Deleting downloaded files
*** Syncing changes to disk
*** If no errors appeared, your firmware was successfully updated to 48c18db1502612455f7f69d72a73c91882950686
*** A reboot is needed to activate the new firmware

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