diff --git a/README.md b/README.md
index 54aa97e..6a2ed7b 100644
--- a/README.md
+++ b/README.md
@@ -2,25 +2,31 @@
 This magisk module enables you to start zerotier in the background after booting.
 
 ## Installation
-if you're using a device with an older kernel where this version does not work, you can move to branch kernel-4.14 and installation steps are the same.
+If you're using a device with an older kernel where this version does not work, you can move to branch kernel-4.14 and installation steps are the same.
+but scripts in this branch may be **OUTDATED**.
 
-1. download zipped code file from github and unzip
-2. modify zerotier/network and write down your own network id.
-3. zip the files, remember to put all files in the root path of the zipped file.
-4. install and enjoy.
+1. download zipped code file from github
+2. install.
+3. modify the config file at `/sdcard/Android/zerotier/network_id.txt" and put your 16-character network id in it with no trailing new line.
+4. restart and enjoy.
+
+To restart, you can just restart the whole system, or just execute `/data/adb/zerotier/restart.sh`; An android application to control zerotier (networkid, restart, ...) is scheduled.
 
 ### Scripts and binaries
 
 all the scripts and binaries are placed in `/data/adb/zerotier/` ， you can use termux to run them if needed.
-
 `add_ip_rule.sh` is used to make the `main` route table, which zerotier writes its routes to, available.
 
 ### Build binaries yourself
 
-Note that the zerotier binaries are only build for aarch64, you can build it yourself in termux.
+The following steps have only been tested in "Termux" with the package manager "apt".
 
-Remember to delete `ZT_SSO_SUPPORTED=1` in `make-linux.mk` if you don't want to build zeroidc with rust.
+Note that the zerotier binaries are only built for aarch64, you can build it yourself in "Termux".
 
-Download libnatpmp library from http://miniupnp.free.fr/files/ and configure linking options in `make-linux.mk`
+Download source files from [zerotier/ZeroTierOne](/zerotier/ZeroTierOne).
 
-Or you can just download the source file modified by me in the zerotier branch, but be aware that it could be **OUTDATED**.
+Delete `ZT_SSO_SUPPORTED=1` in `make-linux.mk` for "aarch64" (or your architecture). this will prevent building zeroidc with rust; the author encountered some problems building zeroidc
+
+Install package `natpmpc` using `apt install natpmpc` and update your `libnpth` library using `apt install libnpth`.
+
+At last run `make` or multithreaded `make -j8`.