How to solve Signature issue after system upgraded to iOS15

1.9k Views Asked by afei At 16 November 2025 at 03:55

When my device upgraded to iOS15 beta1, the installed Enterprise App cannot launch success.

ErrorMsg : Signature Version Unsupported, reason: Signature version no longer supported

current code sign version is 20400

There are 2 best solutions below

afei On 09 June 2021 at 09:42

Upgrade macOS version and repackage ipa.

Geek__Lee On 16 July 2021 at 01:23

I have the same problem,I solve this problem through the following steps:

go to Targets-General-Frameworks,Libraries,and Embeded Content
Find the frameworks that are set to embed & sign
Show in Finder of this Framework
in Terminal run file xxx.framework(cd /XXX/XXX/thirdSDK.framework)
if you see current ar archive，Indicates that this is a static library。(if you see shared Library，Indicates that this is a dynamic library.)
if this framework is current ar archive,just need to set embed & sign to Don's signing。Then everything will be ok.