Detection is generally like this, taking mobile phones as an example:

First of all, you will be asked what the fault is, such as receiver fault, and the inspector will try it first;

Then it is possible to restore the factory settings first, so back up what you need before sending it for repair;

If the fault still exists, take it apart to see if there is anything blocking the receiver, or just to see if the circuit board has traces of water again. It's a simple question. Just disassemble it. For big problems, such as changing the motherboard, it may take several days to repair it on site.

Xiaomi 1 1 is a mobile phone product released by Xiaomi Company in Xiaomi Science and Technology Park on February 28th, 2020, and went on the market on June 28th, 2026.

Xiaomi 1 1 screen adopts 6.8 1 inch AMOLED screen; The height is about 164.3mm, the width is about 74.6mm, the glass version is about 8.06mm, the plain version is about 8.56mm, the glass version is about 196g, and the plain version is about 194g. Equipped with black, white, blue, smoky purple (plain leather), khaki (plain leather) and special offer (signed by Lei Jun).

Xiaomi 1 1 is equipped with Qualcomm Snapdragon 888 eight nuclear processor and MIUI 12 initial operating system. It has camera functions such as video super night scene and AI intelligent image, and is equipped with 4600 mAh (typical) /4500 mAh (minimum) capacity battery.