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How to replace memory for noname 187A
#1 · September 23, 2019, 2:03 am
This operation is risky, please don't try it if you are a newbie.
About the difference between Noname’s 187A and 187B
The hardware difference is that the original RAM of 187A is 256M, and the original RAM of 187B is 512M. The other hardware is exactly the same
If you replaced RAM of 187A with 512M，Now 187A and 187B have the same hardware.
Any firmware for 187B can be installed on 187A.
The second difference is that the key layout on the right side of 187A goes from top to bottom: “mute/setup/phone“.
The key layout of 187b is: “phone /app/setup“.
The third difference is: 187A left button is “FM/AM“, 187B is “radio“. Just the letters are different, the functions are the same.
So you can simply think of Noname’s 187A and 187B as just different RAM.
The above explanation does not apply to the head unit of Desay, for Noname only.
1. The RAM model you replaced is incorrect. (Brand: NANYA, Model number: NT5CB256M16CP-DI or NT5CC256M16DP-DI)
2, your welding level is not good, not completely welded successfully, replaced with a new memory, the temperature of the heat gun is between 400-430 degrees.
![[Image: O1CN01jsD7PI1OjsUCSDgvU_!!30701742.jpg?t=1561203250000]](https://img.alicdn.com/imgextra/i4/30701742/O1CN01jsD7PI1OjsUCSDgvU_!!30701742.jpg?t=1561203250000)
![[Image: O1CN01ycj1431OjsUGI9cnj_!!30701742.jpg?t=1561897517000]](https://img.alicdn.com/imgextra/i4/30701742/O1CN01ycj1431OjsUGI9cnj_!!30701742.jpg?t=1561897517000)
