Vibration stopped working after flashing Global Rom (I think) - Xiaomi Mi MIX Questions & Answers

Yeah, no vibration at all, tested with hardware test, done all formats changed to different roms Chinese global development, also flashed using fastboot with full clean.
no joy.
Anybody else have this problem?

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STRANGE!!! Why the Internet Data isn't working?

Hello Guys,
I have been facing a serious problem ever since I updated my Mi3 to latest developer version. My 3g internet isn't working. I have tried all the possible trouble shooting like reinstalling the OS both stable and developer, clearing cache lot of times, reinserted the sim couple of times. I even tried to flash a lower version but it didn't help.
Initially i was on custom LP with extended partition on TWRP recovery and everything was working flawlessly. I reverted back to stock partition and now using CWM recovery with miui 6 developer version.
On the other hand the wifi works perfectly no issues with it. Not sure whether its a bug or i am missing something.
I would highly appreciate if a solution can be found and i can start using my internet data.
Thanks

Weird miui

Hi guys, i have weird problem, everytime i flashed miui rom (official or modified version), i cannot unlock the screen after booting, it's always black, locked. But if i flashed other rom like LOS, RR, VIPER, etc my mi5 work normally. Anyone knows what happened to my mi5? Thanks in advance and sorry for my english.
xblizzardz said:
Hi guys, i have weird problem, everytime i flashed miui rom (official or modified version), i cannot unlock the screen after booting, it's always black, locked. But if i flashed other rom like LOS, RR, VIPER, etc my mi5 work normally. Anyone knows what happened to my mi5? Thanks in advance and sorry for my english.
Click to expand...
Click to collapse
Did you clear cache/system/data ?
dev>null said:
Did you clear cache/system/data ?
Click to expand...
Click to collapse
offcourse, even formatted internal partition and trying flashing using mi flashtool (fastboot rom) give me same result,.
I have exactly the same issue. I tried to install many different MIUI ROMs (China Stable, Global Stable, Global Dev, Xiaomi.eu), but I wasn't able to fix it. I've also recently had my phone serviced and as a result, the screen has been replaced, but even that hasn't solved the problem. I'd like to note that (in my case) the issue started to occur after installing LineageOS 15.1 - I haven't noticed this problem before.
Try flashing the lazy flasher.zip after installing the miui rom.

How to return to stock?

Hello guys! After experiencing all custom ROMS including Xiaomi.EU, figured out that every single one has some small inconvenience for me and planning to return to stock, eventually using only Magisk and potentially a custom Kernel.
Managed to install every single version of Global Developer ROM, everything works well except the FaceUnlock that was gone, (the phone remained stucked in China region) and I am not able to access the fingerprint section, after few tries it brings me an error message.
Tried also using MIFlash , but the Fastboot ROM writting took 3 sec to write and stopped as successfully, then nothing but bootlooping.
Currently is the phone is functional, but as mentioned before not able to setup new fingerprints (using cache and data from old recovery and those work) neither Face Unlock.
Tried to Google any kind of solution, but unfortunately nothing worked.
Any suggestion is appreciated.
I see that nobody is interested to support, so I continuously researched and figured out that doing a full wipe and following these steps from this post will solve my problem:
https://forum.xda-developers.com/mi-8/help/chinese-mi8-to-global-instructions-t3839665
From I don't know which reason I was blocked on China region without the possibility to changing it.

XIAOMI.EU MIUI11 compass issue

Hello guys, I need your help. I discovered that on xiaomi.eu rom compass is behaving kinda wrong. I discussed about it here but I didn't get any solutions for that problem. On Global Stable ROM everything is fine, compass stands still but on the xiaomi.eu it keeps increasing value when the phone is laying on the table. I discovered also that in the diagnostic menu the value of Z axis is increasing (screenshot). As it's not a hardware problem it must be something wrong with the software. Can you help me to solve this problem? If I should check anything else or give you more feedback about it, just tell me. BTW I tried factory reset twice, even flashed back Global rom and then again xiaomi.eu. Also I cleared the compass data and tried to calibrate it many times. I hope it's not a Chinese rom problem on which xiaomi.eu is based on
Seems like the latest update (9.10.31) finally fixed that issue. The thread can be closed/deleted

Mic fail in call - no sound transmitted

Hello,
This has been driving me nuts. I can't be heard in normal calls, the mic picks up nothing.
I am using global 9t pro.
I have tested the hardware and the mic is working. Speakerphone works also. All roms tried present the same problem (stock, lineage, Xiaomi.eu). I have now clean flashed stock MIUI 10 and updated to 11 and problem remains.
I've read there can be sim reader problems, but speakerphone seems to work. I've read there can be audio routing problems relating to headset with mic being detected, but I can't find evidence the phone thinks there is a headset connected. I've disabled Google Assistant and the problem remains.
What puzzles me is that even after a complete clean flash of stock rom there is no improvement.
Any advice would be greatly appreciated.
Thanks
dvns said:
Hello,
This has been driving me nuts. I can't be heard in normal calls, the mic picks up nothing.
I am using global 9t pro.
I have tested the hardware and the mic is working. Speakerphone works also. All roms tried present the same problem (stock, lineage, Xiaomi.eu). I have now clean flashed stock MIUI 10 and updated to 11 and problem remains.
I've read there can be sim reader problems, but speakerphone seems to work. I've read there can be audio routing problems relating to headset with mic being detected, but I can't find evidence the phone thinks there is a headset connected. I've disabled Google Assistant and the problem remains.
What puzzles me is that even after a complete clean flash of stock rom there is no improvement.
Any advice would be greatly appreciated.
Thanks
Click to expand...
Click to collapse
Hello I had a similar problem, my autorotation and mic started to fail and I got confused, after some research it turns out if I flash MIUI 11 and go back to MIUI 10 a partition called persist gets deleted and it completely messes up your sensors and it won't get fixed regardless you flash another rom, what I did was download fastboot rom and flash it. If that doesn't fix it extract the persist.img from the rom files and flash it through TWRP and it should go back to working. Wait now that I think about it you try flash persist.img from the files and if it doesn't work then you flash the fastboot rom. Good luck

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