Sometimes the Internet to download or given by others ipa file lock may increase over time, if not removed may flash back or have re-signed after the pop tips.
After this case need to be locked inside the bag ipa file deletion was re-signed to normal use.
Happy when re-signing software to re-sign in to lock the page, select ipa ipa file will automatically read the package might be a lock file, lock the ipa happy to re-sign the software will automatically check directly to re-sign.
If after re-signing does not work, check the manual considered themselves locked file delete, mark appears in the interface are not necessarily a lock to say, it may be functional modules.
