Android/Sign

By default, Android build script use testkeys to sign all the files which is in build/target/product/security/.

For a decent release, build has to be signed with release keys created by specific device.

Here is the instructions to generate all the keys resign needed. generatingKeys

• Put the keys generated in vendor/olpc/security/xo4

If you can successful build Android for XO-4, there is a script build_release.sh which can help to resign build using specific keys.

 cd vendor/olpc/xo4/sugar-combiner 
 . build_release.sh vendor/olpc/security/xo4