Hi folks. 
It came to the attention of some users that Xiaomi mixes a lot the sensors that are used in this device. It´s indeed a lottery.
Although this might not greatly affect conventional user experience, there are still some differences that can become relevant when addressing bugs, faulty parts and overall complaints.
For instance:
Proximity Sensor - most of earlier units seem to have included Elliptic Labs Proximity Sensor (with high level of complaints), while later ones appear to increasingly come with Xiaomi Proximity Sensor - sourced from Minghao (apparently more reliable).
Camera - even though camera modules are all the same accross units, they come with a random mix of lenses. For instance, on main camera, the s5khm2_i_samsung denotes a lens sourced from Ofilm (with f1.9) and s5khm2_ii_samsung means that the lens came from Sunny (with f1.89) - so with slightly wider angle of capture. Also, even though quality of capture seems equivalent, Ofilm presents a slightly yellowish tint when compared to Sunny.
Gyro/Accelerometer - some units come with icm4x6xx from TDK (slightly more power draw but apparently more sensitive, and perhaps better EIS capabilities?) and others come with lsm6dso from STMicro (less power hungry but also less sensitive). TDK variants also appear to come with 32 sensors overall vs the 31 found on STMicro version - the additional one is xiaomi.sensor.free_fall, which seemingly protects the hard drive in case of falls.
Charger Board - some units come with bq2597x, while others come with ln8000 (reports of it having a buggy PMIC and more problems in Custom ROM compatibility - e.g. Poco X3 Pro)
Display Panel - apparently, most are sourced from Samsung (dsi_k6_38), although they can also come from Tianma (dsi_k6_36), Visionox (dsi_k6_41) or Huaxing (dsi_k6_42). For instance, I have two devices with the same Samsung panel reference and even so, they present very visible differences among them - with one being more bright with a slight reddish tint, and the other being a bit more contrasty, with less nits and with a slight yellowish tint.
As informed consumers, having complete information about what is inside our unit is a fair and reasonable ask.
Therefore, we are opening a poll below, so we can all share our sensor mix and try to understand if they form a pattern on how the device behaves.
For information on sensors, you can run the app Device Info HW (https://play.google.com/store/apps/details?id=ru.andr7e.deviceinfohw).
For information on screen maker on unrooted MIUI, you can run a bug report - open the dialer and type *#*#284#*#* -> navigate to MIUI/debug_log/bugreport-date-time.zip -> inside the zip, open another zip called bugreport-version-date-time.zip -> open the file dumpstate_board.txt -> find "detect panel" -> et voila!
Feel free to answer the poll and provide more relevant details.
Cheers!
It came to the attention of some users that Xiaomi mixes a lot the sensors that are used in this device. It´s indeed a lottery.
Although this might not greatly affect conventional user experience, there are still some differences that can become relevant when addressing bugs, faulty parts and overall complaints.
For instance:
Proximity Sensor - most of earlier units seem to have included Elliptic Labs Proximity Sensor (with high level of complaints), while later ones appear to increasingly come with Xiaomi Proximity Sensor - sourced from Minghao (apparently more reliable).
Camera - even though camera modules are all the same accross units, they come with a random mix of lenses. For instance, on main camera, the s5khm2_i_samsung denotes a lens sourced from Ofilm (with f1.9) and s5khm2_ii_samsung means that the lens came from Sunny (with f1.89) - so with slightly wider angle of capture. Also, even though quality of capture seems equivalent, Ofilm presents a slightly yellowish tint when compared to Sunny.
Gyro/Accelerometer - some units come with icm4x6xx from TDK (slightly more power draw but apparently more sensitive, and perhaps better EIS capabilities?) and others come with lsm6dso from STMicro (less power hungry but also less sensitive). TDK variants also appear to come with 32 sensors overall vs the 31 found on STMicro version - the additional one is xiaomi.sensor.free_fall, which seemingly protects the hard drive in case of falls.
Charger Board - some units come with bq2597x, while others come with ln8000 (reports of it having a buggy PMIC and more problems in Custom ROM compatibility - e.g. Poco X3 Pro)
Display Panel - apparently, most are sourced from Samsung (dsi_k6_38), although they can also come from Tianma (dsi_k6_36), Visionox (dsi_k6_41) or Huaxing (dsi_k6_42). For instance, I have two devices with the same Samsung panel reference and even so, they present very visible differences among them - with one being more bright with a slight reddish tint, and the other being a bit more contrasty, with less nits and with a slight yellowish tint.
As informed consumers, having complete information about what is inside our unit is a fair and reasonable ask.
Therefore, we are opening a poll below, so we can all share our sensor mix and try to understand if they form a pattern on how the device behaves.
For information on sensors, you can run the app Device Info HW (https://play.google.com/store/apps/details?id=ru.andr7e.deviceinfohw).
For information on screen maker on unrooted MIUI, you can run a bug report - open the dialer and type *#*#284#*#* -> navigate to MIUI/debug_log/bugreport-date-time.zip -> inside the zip, open another zip called bugreport-version-date-time.zip -> open the file dumpstate_board.txt -> find "detect panel" -> et voila!
Feel free to answer the poll and provide more relevant details.
Cheers!
