Redmi Note 9 Pro Max volume button bug

[pr0ph3t]

Guys i bought a Redmi Note 9 Pro Max, it's having an issue with volume buttons! Like if i try to increase then it will decrease a step and increase back... And it i try to decrease then vice versa... But if I touch the and adjust the volume from UI then its ok!

Any idea about this? Is this a software bug?
How to fix?

 

[pr0ph3t]

Hmm sorry for the late update, I took it to the service center the next day. It was a hardware issue, they replaced the volume buttons as per warranty policy. Xiaomi products have quality issues nowadays.

 

[iromsada11]

Hmm sorry for the late update, I took it to the service center the next day. It was a hardware issue, they replaced the volume buttons as per warranty policy. Xiaomi products have quality issues nowadays.

How much it cause to fix

 

[iromsada11]

Hmm sorry for the late update, I took it to the service center the next day. It was a hardware issue, they replaced the volume buttons as per warranty policy. Xiaomi products have quality issues nowadays.

How much it cause to fix

 

[Puneeth 2103]

Hmm sorry for the late update, I took it to the service center the next day. It was a hardware issue, they replaced the volume buttons as per warranty policy. Xiaomi products have quality issues nowadays.

How much they've charged?