The unlock retries feature from the Telit plugin does not work properly with
old versions of the Telit HE910 firmware. This has been fixed in upstream
commit: fbb607f0c25be3a4bb8692ee48445cf437345b6c
Signed-off-by: Salvador Penalva <salvador.penalva@digi.com>
https://jira.digi.com/browse/DEL-3863