Not connecting to 3g network but 2g works fine in my mi3w.

MANY HAVE THIS PROBLEM AS I CAME ACROSS MANY COMPLAINTS SIMILAR TO MINE DURING MY BROWSING. SOMEONE PLEASE ANSWER.
My xiaomi mi3w suddenly quit connecting to 3g network even when it is available. I tried switching to wcdma mode from settings as well as by forced method. The sim card works fine with other phones. I tried factory reset, booting back to stock version, updating, etc. During the time glitch started I was using global developer ROM miui7 . I didn't do anything unusual. I can see my imei no: from settings.. what to do? It's serious..:confused:

MI3W bricked - help

Hi,
I have a problem with my Xiaomi MI3W. I installed SuperSu and AdAway.
It worked briefly, but after short time android crashed with some system error.

After reboot I got this screen "To start Android, enter your password".
Whatever I write I get "Decryption unsuccessfull" and text "...Your data is corrupt... you need to perform a factory reset..."
And there is a button "RESET PHONE".

When I press it it brings me to recovery mode. I tried wipe cache, other wipes didn't work.
I tried flashing latest stable rom with MiFlash and fastboot.
It finished successfuly, but the problem persists after reboot.

I also tried wiping and factory reset through TWRP.
I seems that 'data' folder is empty.

Help, please...

Mi3w Broken audio software

I would like to ask a question and want to find a solution for my problem. I'm facing a quite big issue which is my loudspeaker output produced cracked sound, like a lost channel of radio and it has become worse. The logcat can be found many times (attached image). I have clean flash to miui (also used qpst many times), but ended up the same. Flashed to cm12.1 and cm13, and also the same. The problem still arise. I have already asked in miui forum but ended up nothing. I also have changed to new loudspeaker twice but still the same. Connecting to headphone doesnt have any problems, no cracking sound.

Attached Thumbnails

 


 

Mi3W TouchScreen issue

From yesterday I was having a strange issue with my Mi3w, I'm using this phone for a very long time. I have noticed that, a small part of the screen is not responsive. If I want to swipe my lock screen up, then a certain point the touch does not respond. more over the device is not also responding if I reboot my device al least 3 min, after that the screen become responsive again, with recovery mode the issue is there, it does response after couple of minutes. I'm not quite sure what the issue. It's not a ROM issue I guess because I've flashed a MIUI 7 ROM and it's the same issue. Could it be possible that the LCD connector got loosened up somehow?