I have purchased Fritz!box fon wlan from e-bay from Germany and using contributions on this forum have sucessfully converted it from german to international version.
[EDIT: link to Rapidshare removed as the provision of firmware downloads from non-AVM-authorized sources violates AVM copyrights. --gandalf.]
if this link some time expires the istructions that where there:
Prepare
The best way to first put all the files which you shall use on your desktop, then connect your fritz!box directly to your computer with ethernet cable (use LAN1 on the fritz!box)
1. first restore it to the original state with restoration utility on your CD-DVD which came with the device (mine was called
FRITZ.Box_Fon_WLAN_7270.04.67.recover-image.exe)
2. trough the web interface firmware update page upload fritz_as_avm_newer.tar (this will unbrand the box)
3. then without rebooting you can upload the fritz_as_avme_newer.tar (this will change environment varible that the box is international version avme a.k.a. avm english)
4. at this time the web interface becomes unavailable as some symbolic links to web files on the box are not changed
5. then restore the box with FRITZ.Box_Fon_WLAN_7270_16.AnnexB.en-de-es-it-fr.04.76.recover-image.exe
6. then load the new firmware for international box FRITZ.Box_Fon_WLAN_7270_16.AnnexB.en-de-es-it-fr.54.04.81.image
7. after reboo chose your language, your country, DSL annex etc.
[EDIT: link to Rapidshare removed as the provision of firmware downloads from non-AVM-authorized sources violates AVM copyrights. --gandalf.]
if this link some time expires the istructions that where there:
Prepare
The best way to first put all the files which you shall use on your desktop, then connect your fritz!box directly to your computer with ethernet cable (use LAN1 on the fritz!box)
1. first restore it to the original state with restoration utility on your CD-DVD which came with the device (mine was called
FRITZ.Box_Fon_WLAN_7270.04.67.recover-image.exe)
2. trough the web interface firmware update page upload fritz_as_avm_newer.tar (this will unbrand the box)
3. then without rebooting you can upload the fritz_as_avme_newer.tar (this will change environment varible that the box is international version avme a.k.a. avm english)
4. at this time the web interface becomes unavailable as some symbolic links to web files on the box are not changed
5. then restore the box with FRITZ.Box_Fon_WLAN_7270_16.AnnexB.en-de-es-it-fr.04.76.recover-image.exe
6. then load the new firmware for international box FRITZ.Box_Fon_WLAN_7270_16.AnnexB.en-de-es-it-fr.54.04.81.image
7. after reboo chose your language, your country, DSL annex etc.