doc: mgmt: mcumgr: Clarify sha256 hash details in img_mgmt
Clarifies that a full SHA256 hash is required for the hash
in img_mgmt.
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
diff --git a/doc/services/device_mgmt/smp_groups/smp_group_1.rst b/doc/services/device_mgmt/smp_groups/smp_group_1.rst
index 991dd1c..213d017 100644
--- a/doc/services/device_mgmt/smp_groups/smp_group_1.rst
+++ b/doc/services/device_mgmt/smp_groups/smp_group_1.rst
@@ -153,12 +153,10 @@
+-----------------------+---------------------------------------------------+
| "hash" | hash of an upload; this is used to identify |
| | an upload session, for example to allow mcumgr |
- | | library to continue broken session |
- | | |
- | | .. note:: |
- | | By default mcumgr-cli uses here a few |
- | | characters of sha256 of the first uploaded |
- | | chunk. |
+ | | library to continue broken session. This must be |
+ | | a full sha256 of the whole image being uploaded, |
+ | | and is optionally used for image verification |
+ | | purposes. |
+-----------------------+---------------------------------------------------+
| "bootable" | true if image has bootable flag set; |
| | this field does not have to be present if false |
