[Xiaomi Poco F1 Questions & Answers] Gurkirat_Singh:
So here they are -

1. First, Is there a way to create a fastboot rom by extracting files from the device? Or you just have to download it?

The reason - As I've always found that stock roms in any phone are the most stable, and it'd be nice if we could create a fastboot rom out of it. Not to forget that we can also save a lot of bandwidth.

2. I recently tried to unlock my device and I was met with an error "wait 72 hours, use your device actively". So what rules I have to follow?

Moreover whenever I try to close my mobile connection whether through notification tab or inside settings, my device restarts.

Are these related? Though if I'm quick enough that I close internet before sim could load and show the H/LTE sign, then it doesn't restarts. But if I turn it later on and decide to shut it off, then it's bound to restart.

Was just tapping on usb tethering and it restarted, don't know if my connection went off as it rebooted very quickly, but it restarted again.

Update : Tried to switch from mobile data to wifi, still restarted. Sometimes if the sim is a little slow to connect to internet and I turn it off, then it doesn't restart either. The data got turned on later and got shut off automatically as in actuality it was off, but the phone didn't restarted then.

3. I'm having some problems with face recognition. First I registered in a dark environment, unlocked it 2/3 times right away. But when I tried later, it didn't worked several times either in dark or well lit environment. Then I installed it in a well lit environment, same thing worked 2/3 times right away, but as soon as I changed the location to dark or back to well lit, it didn't worked again. Just tried it RN, it worked several times except a few times, so what 's going on here? I'm confused.

Update : I think it's a distance issue.

4. This is a general question regarding miui. Where is the data saver (restrict background data) feature in miui? I've tried several times to find it in different mi phones. But was never able to find it. It's been here from kitkat or maybe even older, correct me if I'm wrong. So why not provide it in miui, such a feature rich rom? Is it hidden somewhere?

5. The stock rom my phone has is based on Android 8.1 (8.1.0 OPM1.171019.011) to be exact, for rom version refer to reply. I've tried different versions of gcam, but none of 'em has worked for me. Normal camera app works fine, nothing I've encountered yet.

These are the versions I've tried -

* F1v9.5_6.2.030.apk (Couldn't install as 6.2 is only supported by android pie)

* MGC_6.1.021_XCAMBase_F1_v5a.apk (Installed and worked, details below)

* MGC_6.1.021_Potter_v7.1_san1ty.apk (Installed, didn't open)

* MGC_6.1.021_Potter_v7_san1ty.apk (Installed, didn't open)

On photo, the camera lags like I'm playing a game at 2-3 fps, same for other photo related options. Except for panaroma, photo sphere, lens blur, these I didin't had problem with. Except panaroma pic never showed up in camera app or gallery. In video it doesn't lag, so recording normal video was fine. But when I recorded a slo mo video, it lagged after the recording, inside & out the camera app. Inside gcam the audio was fine but outside it was muffled. By outside I mean gallery app & vlc player.

I may try other versions but each app is so big.