I had the 32gb version which I remembered had ridicolous vibration and haptic strength.
Recently got a 64gb version and I've noticed the vibration isn't as strong compared to the 32gb out of the box.
Is this just a software limitation that can be adjusted by a custom kernel/setting?
Hi, i cannot adjust the strength of the vibration on the p20 pro. Emui is very limited. Any kind of workaround for that
Hello,
a few days ago I bought a new Xiaomi A2 4GB/32GB.
Mechanically everything is fine, but two things seem odd to me:
There is a, albeit quiet, noise coming from the display. In the notebookcheck.com review of the phone they say it uses PWM for brightness regulation at about 1100 Hertz, which is almost the frequency of the noise. It is not always there, but most of the time. I can hear it from about 15 centimeters from the phone.
The other thing is the vibration motor. While my former Redmi Note 5 produces a low hum, the motor in the a2 makes a much brighter sound. The problem I encountered is that it sounds like the device, or something in it, is even vibrating to the motor, which makes a hissing noise every time the motor engages.
Has anybody experienced similar issues with the A2? None of these are apparent on my Note 5.
Thank you for reading and your answers
Tyzmon said:
Hello,
a few days ago I bought a new Xiaomi A2 4GB/32GB.
Mechanically everything is fine, but two things seem odd to me:
There is a, albeit quiet, noise coming from the display. In the notebookcheck.com review of the phone they say it uses PWM for brightness regulation at about 1100 Hertz, which is almost the frequency of the noise. It is not always there, but most of the time. I can hear it from about 15 centimeters from the phone.
The other thing is the vibration motor. While my former Redmi Note 5 produces a low hum, the motor in the a2 makes a much brighter sound. The problem I encountered is that it sounds like the device, or something in it, is even vibrating to the motor, which makes a hissing noise every time the motor engages.
Has anybody experienced similar issues with the A2? None of these are apparent on my Note 5.
Thank you for reading and your answers
Click to expand...
Click to collapse
Either you are very sensitive to those frequencies or your phone is broken as I can't hear any 1 kHz noise from the display
Tyzmon said:
Hello,
a few days ago I bought a new Xiaomi A2 4GB/32GB.
Mechanically everything is fine, but two things seem odd to me:
There is a, albeit quiet, noise coming from the display. In the notebookcheck.com review of the phone they say it uses PWM for brightness regulation at about 1100 Hertz, which is almost the frequency of the noise. It is not always there, but most of the time. I can hear it from about 15 centimeters from the phone.
The other thing is the vibration motor. While my former Redmi Note 5 produces a low hum, the motor in the a2 makes a much brighter sound. The problem I encountered is that it sounds like the device, or something in it, is even vibrating to the motor, which makes a hissing noise every time the motor engages.
Has anybody experienced similar issues with the A2? None of these are apparent on my Note 5.
Thank you for reading and your answers
Click to expand...
Click to collapse
Maybe your phone is haunted ?
I am not sure about the noise from the phone, but I can feel the vibrator extra hiss than regular, Its coming from the camera side, when I try to place the phone on surface, on contact, the camera position side make kind of rattling noise, where some of the parts are loose or not fitted properly.
Browsing around internet forums I read about quite a few issues on 9T / Pro displays: it looks like some devices do present uneven display brightness, but higher on one side and lower on the other side.
This issue is visible almost only under low light conditions.
I'd be interested to know how many devices have this kind of issus.
Thanks in advance.
My Mi 9T pro is perfect. No issues at all.
Sent from my Mi 9T Pro using Tapatalk
I was expecting variations across the display at low brightness setting. It's a AMOLED thing, we're told, and as an engineer I can see why the technical challenge exists.
Having said all that, my display seems practically perfect even at low brightness.
Although I tend to be easily annoyed by flickering displays, I haven't found it necessary to switch on anti-flicker mode (DC brightness control). I can see why that might make the display brightness more irregular.
While poll votes are just a little number, is nice to see that the display quality looks good.
Thanks a lot for your feedback!
Hi,
I have recently bought this k20 pro. Its a beast but i just discovered that when i play audios at max volume, device is feeling warm at the lower right in the back side. And i think its where the speaker is situated. But it is not like overheating or like the processor heats at heavy usage. It is just a warm feeling that i had not seen in any other devices so far.
Is this normal ?
Or only i am having this issue?
Device info:-
K20 pro, december 2019 built/manufacture
Miui 11 out of the box and updated to Miui global stable 12.0.2( latest)
Also had reset after the miui 12 update.