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I was expecting variations across the display at low brightness setting. It's a AMOLED thing, we're told, and as an engineer I can see why the technical challenge exists. Having said all that, my display seems practically perfect even at low brightness. Although I tend to be easily annoyed by...

Which model of phone? Just tested on Mi 9t Pro, not experiencing this problem.

Similar experience here with Mi 9t Pro; "phone idle" and "cell standby" seem low, no major issues with unexpected nuisance wakes during the night etc.

Mi 9t Pro has band 20. This is particularly useful in Europe where it is used extensively. Also I believe that Mi 9t Pro has Widevine L1 certification not present on K20. Important to some people.

At risk of stating the obvious, have you confirmed with another phone that you actually have a 4G signal? Similar has happened to me before when the nearby cell tower was under maintenance.

Why do Xiaomi seem to have such a problem with proximity sensors? The one on my Note 7 doesn't work properly and a google search reveals complaints about sensors on many models. It's not as if they are rocket science any more.

I'm using the miui global 10.3.3.0 PFGEUXM and definitely have some "issues" with the proximity sensor. I'm still trying to tie down the exact nature of the problem: With a quick test, or doing calibration, it seems to work exactly as I would expect; the screen switches off as you approach...

Thanks for the reply. Hmm yes, that's what I expected, but icon is definitely not there. It's especially strange since I have definitely had VoLTE with the same SIM successfully on different devices. What do you make of my phone staying on 4G during a call, does that suggest VoLTE is actually...

Using Redmi Note 7 Global version, 4G+64G, MIUI 10.3.2.0. VoLTE I entered *#*#86583#*#* and dialler confirms that VoLTE carrier check is disabled (test page 4636 also shows VoLTE provisioning is ON). On different phones using same SIM, same location, I see "HD" icon confirming "HD calling", or...

Just for reference, the double-tap-to-wake feature depends on the hardware build. I've seen several of these phones bought in UK and none had this "feature"

I wondered about this too. If you're not in a hurry (say, charging overnight) then maybe the slower charge will ensure optimum battery life. I find that using a long (2M), cheap charging cable prevents fast charge! That's understandable because the electrical resistance will be higher than a...

From my experience even the best conventional GPS can still occasionally get confused, especially around city (presumably due to "urban canyon" signal multipath effects). I'm very interested to see how well the Snapdragon implementation of dual-frequency GNSS (as in the Mi 9) actually works in...

Mine is entirely scratch-free even after many months of use. Of course, cheaper large-ape-flavour glass may have less consistent quality of hardening. Perhaps yours came from a bad batch?

I have had occasional problems with the SD card vanishing, even though it is used as "portable storage". I wonder if this could be a related problem? Rebooting the phone has always corrected the problem. I also often notice that when I wake the phone from sleep, there is briefly a notification...

It's still working for me on Three UK network, after February update..

Is that 1% nightly loss with (or without) the measures you describe in 1-5 above? Since the Pie update, mine is consistently losing about 1% per hour (25% per day) just doing (apparently) nothing (few apps installed to sync). I've tried switching off 4G data, WiFi, Location, but curiously that...

What a shame. Is this a measure to reduce licensing cost, or just an omission? It might be worth repeating on the official Mi forum to raise the profile?

I believe there is a good chance that doing a factory reset will fix the problem you described earlier.

That's disappointing. Have you tried a full factory reset yet?

I'm surprised that there is not more activity on this thread. WiFi calling is very convenient in poor signal areas but as you say it seems to be disabled on this phone. I'm now using A2 lite as my daily phone, VOLTE working great but lack of WiFi calling a real disappointment.

Yes, I had the same problem. In fact, every time I have done OTA update I get this problem. For me, factory reset has fixed it on previous occasions. I can only suggest to you to try it again. Mine is OK at the moment, but I shall not be confident for weeks.. We know that this problem can return...

Update: For me, after a while using 20181010, I get return of "Sleep of death" seen by many owners: Tablet requires hard reset (very long button press) to awaken from sleep. I've tried a factory reset, problem gone away, but suspect may return in a few days like before.

New OTA update 20181010 just landed on my machine. Not sure what this fixed (or breaks!)

Actually I saw the post on Chuwi company forum, but it wasn't entirely clear. In any case, factory reset has fixed my OTA, however I have now had other 'issues' including problems waking tablet from sleep, so not happy with this update!

I read someone on Chuwi forum, suggests that a factory reset fixes this issue. Can any experienced developers comment on com.adups.fota.MyApplication ? It has been suggested this is malware. Are Chuwi really allowing malware to be rolled out to this machine? Should we ignore OTA updates? Thanks.

Maybe, but they show 20180506 separately. I'm certainly not going to pay to download though...

I spotted the site needrom.com promoting a (paid) download for Hi9 air : Update Official ROM CHUWI Version: O00623 release-keys 20181010 - full_x970_t10_portrait-user 8.0.0 O00623 Does anyone know, is that site a scam, or is there really a newer official ROM out there? I can't see any mention...

OK, I have submitted a ticket. I suggest that you do the same, describe it in your own words. Adding different people may focus attention on the problem.

Yeah, great suggestion., although I read that they are not very "responsive".

It looks like the presence of the SD card induces this fault that can only be fixed with factory reset. I'd be interested in other folks opinions about this. Might it be fixed in software? I want to use SD card to store music and moves, but it's useless if it means factory reset every week!

I had to factory-reset, it was the only way I knew how to restart. Very annoying. Not much faith in Chuwi!

I had a similar problem, but it seems only to occur if a microSD card is inserted. If I keep the card out, it behaves OK. I wonder if you are using microSD card...

OK; thanks. Would you mind telling me what firmware version you have now?

Yes, you did get an OTA update, or Yes, it can be updated even with no serial number? or perhaps both? (thanks...)

Did anyone ever get a wireless OTA update on this machine? I have not, but I'm curious to know whether my tablet is working correctly. Is OTA capable of working if the tablet has no serial number?

Yes, thanks, I may do that - Still curious to know whether OTA works though, it's nice-to-have for an average user.

Still no sign of any OTA update for me, I'm still on May version. Annoying because it seems a good tablet but there are a few bugs. Has ANYONE else received OTA update? Does anyone know whether missing serial number could affect ability to receive OTA? Thanks

Sounds promising. I've got received any updates yet. Was yours delivered OTA or did you load it manually?

Yes, kudos to Huawei for releasing this security update on a relatively old machine. It makes me more inclined to trust them in the future. B520 seems to work well for me.

Well, I thought that I had waited long enough for it to shut down properly, but something somehow corrupted both SD card and the tablet. I removed the offending SD, did a factory reset on the tablet, then inserted and reformatted the SD card. All seems OK now. I just hope it doesn't happen again.

I've recently experienced issue with power button. I had just inserted MicroSD card (perhaps not perfectly fitted?) with tablet in OFF state. Tablet would now not start normally; I had to very-long-press power button to reset. It was like the tablet froze every time it went to sleep. Did factory...

Oh? I already tried for OTA but none seemed available. Could mine have been made after the update, or the update has been withdrawn? Brightness of mine seems acceptable albeit not dazzling. Unfortunately I can't measure the value. Build here is "000623 release-keys 20180506"

Just thought I'd dive in and greet the group; My Hi9 air arrived last Friday. Initial impressions: On the negative side, build quality is not quite as exquisite as my old Cube tablet, but it's OK. Fitted screen protector is truly horrid. The plastic volume and power buttons don't give a great...

I believe that they dropped the vibration motor early in production. Maybe because of the battery consumption (battery life being a known issue with this watch) although perhaps to save manufacturing time and cost (installing the motor is a fiddly manual wiring job). Anyway, they starting...

Sorry to bring bad news, but the "heart rate sensor" in the D6 doesn't actually work. It's just two green LEDs and the software returns semi-random numbers. If you trawl through this thread deep enough you will find more discussions about this, with pictures.

Thanks for the update; I'll give it a try.

I believe that I saw the "network connection fail" when I last did OTA, but eventually it worked. If other internet-based applications work OK, then I strongly suspect that it is the OTA server. Give it a day or so!

I thought that I once saw a link to a website that was selling cables. I've had a quick search but not been able to find it again. Worth having a look though. Does anyone else remember it? My watch is STILL running on the charge I did days ago. It really did need calibrating; it's been...

Well, I'll leave the battery to run down fully because I believe that it really does need calibration. The November update seemed very bad on battery for me, even with no watch use, which is one of the particular reasons I'm interested in the standby time now. I guess we'll never agree on the...

Yes Adrian, I agree that leaving the watch in standby is not realistic of normal operation, but there is a reason for my method. I'm interested in what particular aspects of using the watch use up battery power, for example, is it better to use Wi-Fi to download or 3G. Has some particular...