OpenMico

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"

README.md Unescape Escape

How to get an OTA link？

README.md