Update DOC and add UCI defaults script ModemManager config

doc/bug_fixed/README.md

@@ -0,0 +1,2 @@
+# Bug Fixed Section
+This section is dedied to the bugs than we had from OpenWRT and the other components around.

doc/bug_fixed/dbus.md

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+# DBus Bug
+The bug was been on dev branch and was [patched](http://lists.openwrt.org/pipermail/openwrt-devel/2021-April/034805.html)
+## Problem
+DBus doesn't want launch it. So if DBus doesn't launch, we can't use modemManager to have an internet connection.
+
+We have:
+```
+
+```

doc/config.md

@@ -7,7 +7,40 @@
   3. Copy/paste scripts in the `files/` folder if they are not shipped with the ROM
   4. Set IP range: `192.168.0.254/24`
 
-### ModemManager
+### ModemManager config automatic
+The image of this project relies on [UCI](https://openwrt.org/docs/guide-developer/uci-defaults) to configure ModemManager from the installation.  
+In *files/etc/uci-defaults/10-modemmanager*:  
+```
+uci -q batch <<EOF
+network.wan=interface
+network.wan.device='/sys/devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1'
+network.wan.proto='modemmanager'
+network.wan.apn='free'
+network.wan.iptype='ipv4v6'
+network.wan.auth='none'
+network.wan.peerdns='0'
+network.wan.dns='9.9.9.10' '149.112.112.10' '2620:fe::10' '2620:fe::fe:10'
+
+commit network
+EOF
+```
+
+The interface **wan** (previously broadband) changed name because of the firewall. With the name **wan** the interface is added automatically in the firewall *wan*.  
+Like we can see on:
+```
+root@OpenWrt:~# uci show firewall
+...
+firewall.@zone[1].name='wan'
+firewall.@zone[1].input='REJECT'
+firewall.@zone[1].output='ACCEPT'
+firewall.@zone[1].forward='REJECT'
+firewall.@zone[1].masq='1'
+firewall.@zone[1].mtu_fix='1'
+firewall.@zone[1].network='wan' 'wan6'
+...
+```
+
+### ModemManager config deprecated
 
 We append the following to ModemManager:
 

doc/flash.md

@@ -36,12 +36,18 @@ bootipq
 Copy the firmware in router's `/tmp`.
 Why `/tmp`? Your router has more volatile storage than persistent one, moreover you will overwrite the persistent storage.
 So, copy the firmware in `/tmp`!  
+If you have a ssh connection, you can use `scp ./path/source/ userDest@ipDest:/tmp`   
 Next, we will use the `sysupgrade` command. `-v` is verbose, `-n` ask openwrt to erase configuration files (ie. ask for a factory reset).
 
 ```
 sysupgrade -v -n /tmp/openwrt-ipq40xx-generic-compex_wpj428-squashfs-sysupgrade.bin
 ```
 
+## Flash OpenWRT from LuCi
+With your binary image, you can flash from LuCi interface.  
+*System -> Backup/Flash Firmware*  
+You can **Uncheck** the **"Keep Settings"**, if you suppose than the problem come from a corruption of settings or you want erase the settings.
+
 ## Flash OpenWRT from Compex ROM (MimoAP)
 
 *Not written*

files/etc/uci-defaults/10-modemmanager

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+uci -q batch <<EOF
+network.wan=interface
+network.wan.device='/sys/devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1'
+network.wan.proto='modemmanager'
+network.wan.apn='free'
+network.wan.iptype='ipv4v6'
+network.wan.auth='none'
+network.wan.peerdns='0'
+network.wan.dns='9.9.9.10' '149.112.112.10' '2620:fe::10' '2620:fe::fe:10'
+
+commit network
+EOF