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2023-05-22 02:45:47 +08:00 · 2021-09-01 16:21:39 +08:00
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+## How to get an OTA link？
+- This is an experimental algorithm, don't have too much hope for it :D
+
+-----
+
+- Before you start, you need to know the model, version, and update channel.
+```
+Explanation about the update channel:
+There are three available channels, 
+release (user-release), current (factory-debug), stable (user-debug). 
+You can choose arbitrarily from these.
+```
+- Let's learn through an example.
+```
+Suppose you need the data of version 2.30.4 of model LX04,
+And 2.30.4 is a release version,
+Your model is LX04, and the update channel is release.
+```
+- What do we know so far?
+```
+model: LX04
+channel: release
+version: 2.30.4
+```
+- Let's use these to get a link.
+```
+Prepare a string of text: 
+"channel=<channel/>&filterID=<sn/>&locale=zh_CN&model=<model/>&time=1617368871545&version=<version/>&8007236f-a2d6-4847-ac83-c49395ad6d65"
+```
+```
+Here you need to replace the required <channel/> and <version/> with the previous content. <sn/> is an optional item.
+```
+```
+When the replacement is complete, save this text.
+```
+```
+Now, we need to get the BASE64 value of this string of text.
+When you don’t fill in the SN, according to the previous content, we can get: 
+"Y2hhbm5lbD1yZWxlYXNlJmZpbHRlcklEPSZsb2NhbGU9emhfQ04mbW9kZWw9TFgwNCZ0aW1lPTE2MTczNjg4NzE1NDUmdmVyc2lvbj0yLjMwLjQmODAwNzIzNmYtYTJkNi00ODQ3LWFjODMtYzQ5Mzk1YWQ2ZDY1"
+```
+```
+After that, we need the uppercase MD5 value of this string of BASE64 (the length of 16 will not be mandatory)
+You will get "D0EC04694F3048B18286A8E90C8E2B91".
+```
+```
+After this, you need another string of text:
+"http://api.miwifi.com/rs/grayupgrade/v2/<model/>?model=<model/>&version=<version/>&channel=<channel/>&filterID=<sn/>&locale=zh_CN&time= 1617368871545&s=<code/>"
+```
+```
+Similar to the previous steps: 
+you need to replace <model/>, <version/>, <channel/> with your own custom content. (<sn/> is also optional.)
+```
+```
+Among them, <code/> is replaced with the previously calculated MD5.
+```
+```
+Finally, you get a link contains all metadata for that version:
+"http://api.miwifi.com/rs/grayupgrade/v2/LX04?model=LX04&version=2.30.4&channel=release&filterID=&locale=zh_CN&time=1617368871545&s=D0EC04694F3048B18286A8E90C8E2B91"
+```