Merge pull request #2937 from grugnoymeme/master

ModemManager solution 2 Updated

CHANGELOG.md

@@ -18,6 +18,7 @@ This project uses the changelog in accordance with [keepchangelog](http://keepac
 - Changed `mem load` - now handles UL-C and UL-AES dictionary files (@iceman1001)
 - Changed `hf mfu sim` - now support UL-C simulation (@iceman1001)
 - Added `!` - run system commands from inside the client. Potentially dangerous if running client as SUDO, SU, ROOT (@iceman1001)
+- Improved To avoid conflicts with ModemManager on Linux, is recommended to masking the service (@grugnoymeme)
 
 ## [Daddy Iceman.4.20469][2025-06-16]
 - Fixed edge case in fm11rf08s key recovery tools (@doegox)

doc/md/Installation_Instructions/ModemManager-Must-Be-Discarded.md

@@ -47,12 +47,21 @@ On Archlinux:
 sudo pacman -R modemmanager
 ```
 
-# Solution 2: disable ModemManager
+# Solution 2: mask ModemManager
 ^[Top](#top)
 
 ```sh
 sudo systemctl stop ModemManager
 sudo systemctl disable ModemManager
+sudo systemctl mask ModemManager
+```
+After doing this check if it has been masked with:
+`systemctl status ModemManager`
+If you'll get something like this, you've masked ModemManager and you will be ready to install and setup your pm3.
+```
+○ ModemManager.service
+     Loaded: masked (Reason: Unit ModemManager.service is masked.)
+     Active: inactive (dead)
 ```
 
 # Solution 3: use filtering udev rules