Mi 8 Signal/Data/WiFi Problems?

[Jovanmer45]

Hey All, kind of a weird situation here.

My Mi 8 (Chinese Ver. 64GB, 6GB Ram) after updating to 9.9.3 now has constant problems/hitches/crashes connecting to Wifi and Data or getting service overall. This happens with Sim in or out of Phone. Tried switching sims too.

I have tried clean flashing both 9.9.3 and latest global using the fastboot method, clean flashing Xiaomi.eu using TWRP, formatting Data, Deleting Data,System,Cache, Boot partitions and Reflashing stock, as well as flashing just the Vendor from 9.9.3 after clean flashing Xiaomi.eu 9.9.3.

Also clean flashed 9.8.15 (China Beta using Fastboot), 9.3.21 (China Beta Fastboot), and Flashed Persist for those firmwares as well.
I literally don't know what else to do. On the verge of suicide cause I can't afford another phone.

I have attached some screenshots (look at status bar) and some logcats of the Searches Modem and Sim as well as a video at https://drive.google.com/file/d/1-BG...w?usp=drivesdk

Help?

 

[Lourenzzo!]

Good night, was inconsistent with Wi-Fi too, 9.9.3, a lot of instability. I'm at 9.9.24 (beta Miui 11,) stabilized this problem. It fell only once, at 9.9.3 it was falling many times.

Enviado de meu Redmi Note 5 usando o Tapatalk

 

[Jovanmer45]

Good night, was inconsistent with Wi-Fi too, 9.9.3, a lot of instability. I'm at 9.9.24 (beta Miui 11,) stabilized this problem. It fell only once, at 9.9.3 it was falling many times.

Enviado de meu Redmi Note 5 usando o Tapatalk

It's not just inconsistent, I haven't been able to get any signal for the past 5 days, and I've tried every solution I could think of

 

[Lourenzzo!]

I also tried several options. There are people who have disabled IPv6 and the crash has stopped. Sometimes it's a possibility.

Enviado de meu Redmi Note 5 usando o Tapatalk

 

[Jovanmer45]

I also tried several options. There are people who have disabled IPv6 and the crash has stopped. Sometimes it's a possibility.

Enviado de meu Redmi Note 5 usando o Tapatalk

I tried. Doesn't work. I'm willing to pay for someone at this point but no Xiaomi Repair Centers in the USA