yashsingh1/xdaforums huggingface dataset:
[XPERIA X1 General] downloadtest82:
I've got a very technical, but very elemental question on this subject, please forgive me for being such a nerd.

What do I ultimately need an accelerometer for in a phone?

How does this accelerometer function work anyway?

In laptops I can understand it's function to protect the hard drive.

As soon as it detects high accelerations (i.e. "free fall" --> acceleration of 9.81m/s^2 = 1g) it shuts down all moving parts in anticipation of an imminent impact (which because of the sudden stop results in massive accelerations around 1500g and more).

Easy physics, no mystery there...

But in mobile phones an accelerometer is often mentioned in relation to automatically rotating screens and of course apple's famous ball-through-labyrinth-game.

Technically an accelerometer on its own cannot do that. All you get from this device is a statement like

"The velocity of rotation around the phone's z-axis is increasing by 3 rad/square-second."

so in order to know the phone's orientation from that you'd need

1. initial calibration (i.e. tell the phone where "down" and "stop" is every time you turn it on)

2. constant measurement of acceleration on all 6 spacial axes (miss one move and your calibration is off).

As far as I can tell there's no note in the iPhone's Manual saying you may only turn it on when it's sitting on a stationary horizontal surface (so much for initial calibration).

And I can imagine the electronics reading the accelerometer go into a low-power "alarming amplitude only" state too most of the time to preserve battery power. Also you'd have to consider the Earth's rotation and path in that calculation too, since the measurement is rather absolute.

Besides, there are more simple and reliable methods out there to to create an artificial horizon (gravity sensor), so what's the benefit of using an accelerometer in the first place?

So, how do these Phones really know where "down" is to auto-rotate my screen if they use an accelerometer, and why not use something simpler?

The only benefit I see is for car navigation software to use the sensor when the GPS signal vanishes (in tunnels etc.) to extrapolate your course from the last confirmed position and velocity, but as far as I know they don't even use it (yet).
[XPERIA X1 General] Neotelos_com:
Ok, let's say either:

A) you have a slight factory calibration so it can "guess" which direction.

B) it dynamically calibrates as the phone is held/moved/twisted.

C) It's not near perfect, just a guesstimate of movement.
[XPERIA X1 General] Rudegar:
and

it's just for screen rotation and games

dont believe gps's use it as it's not precise enough
[XPERIA X1 General] Pinguino1:
Let me apologize first, because, I know nothing about all that disertation about accelerometers. But let me have my street guy comon sense opinion.

First I don't think these phones have such a sofistcated type of accelerometer. The use of the accelerometer word in mobile phones is a missnomer because I'm sure they have something simpler that I would call it "Balancerometer"

I believe it's just 2 or 3 tubular circles perpendicular to each other. These tiny tubes are filled with some kind of liquid The reading of the position of these liquid is enough to know the position of the device ex: Vertical, horizontal, diagonal at any angle of mesurement. It probably cost no more than $2.00 in mass production.

You know better tha me. Do you think I am crazy or worst? :eek:
[XPERIA X1 General] Insaneboy:
GSM Arena says

http://www.gsmarena.com/sony_ericsson_xperia_x1-2246.php

But then again ... who knows.
[XPERIA X1 General] htcplussony:
In the diamond app forum, Ikari creatied pocket gforce which from the picture, its not just a simple tilt sensor. Even I wonder why we need the full thing.

But cool though.
[XPERIA X1 General] hypest:
These accelerometers actually measure the Earth's gravity also. It constantly measures the 1g with which the Earth is pulling the phone. A 3-axis accelerometer gives you the projection of the gravity vector on each axis (x, y, z). Assuming that the phone is only rotating (and not translating), it is easy to find to where the phone is facing... for example, if the x and y acceleration is ~0 and z is ~1, then the phone is facing up, like leaving it on a table top. If x=1, y=0, z=0 => phone in landscape. If x=0, y=1, z=0 => phone in portait mode.

When the phone is being translated (moving, that is) in a non-constant manner, a "dynamic" acceleration vector is added to the 1g Earth's vector. In that case, calculating the phone's position/rotation becomes more tricky and more erroneous...

Actually, in free-fall, the acceleration is reported as zero.
[XPERIA X1 General] htcplussony:
Even ipod nanos come with accelerometers now. Don't sit well with me if the xperia doesn't.
[XPERIA X1 General] ipporek:
Well, even the C905 and G705 have accelerometers, so why couldn't SE put one into their flagship
[XPERIA X1 General] Neotelos_com:
Years ago I used to think alot of debives measured that way, at one time it may have been like that but not now.

http://en.wikipedia.org/wiki/Piezoelectric_accelerometer

I have an RC Helicopter and a strong interest in electronics...so yeah, I just happen to know random stuff like this, lol.

They manufacture these in bulk as chips often...some even having 3+ (rotation) axi on the same chip.

Even at retail you can get the raw high-end chips for a couple bucks...imagine how much they cost in bulk.
[XPERIA X1 General] theclueless:
i suggest you to retake physics...

currently the accelerometer is just for user interface for phones, not too many uses
[XPERIA X1 General] tregba:
Actually his physics is sound no need for retakes in motion.
[XPERIA X1 General] Neotelos_com:
True, gravity is a force, when in place you have...what is it? 9.84kg/cm^2?

i dont recall, but when it's falling...the accelerometer on the device will report 0 when properly calibrated.
[XPERIA X1 General] hypest:
Well, I already have a university degree in Physics (really) and I'm too bored to retake it :).

Acceleration is reported zero in free-fall, because the silicon "springs" that comprise the accelerometer fall together with their "bases", and what the device actually measures is the displacement of the spring in relation to its "bases". No displacement occurs when in free-fall (assuming that springs and bases have reached equilibrium).

I will agree to that, but basically because the acceleration sampling resolution is low, and because the software can be quite complicated, e.g. you need to account for the dynamic acceleration induced by user's moving the device around as opposed to just tilting it, and to have strict timings if you want to calculate the actual position or speed of the device. Put in high resolution sampling and a Hard Realtime OS, and imagination is the limit...
[Windows 10, 8, 7, XP etc.] Airplanet:
Can anyone access data or perform any privacy activity etc from Storage Devices like Portable Hard Drives, Internal Hard drives and SSD's etc using Portable Hard Drives, Internal Hard drives and SSD's etc Product Number and Serial Number etc?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] aamaaeg:
I tried to enroll my device in the beta project for EMUI 11. Has not got a feedback through the app, but a month later has received OTA EMUI 11.

No huge changes, bit for a reason the interface looke better (pretty much IOS 14ish. More fluid, better performance as well as few pits and pieces here and there.

So far:

Text optimised cropping. I think it was there already, but now works better.

Better multitasking with apps drawn in a window while ongoing background apps/ interface working simultaneously.

Better visuals, closer to IOS ones (don't know who follows who, got lost a while ago and I don't really care). Actually I like the EMUI idea being a middle ground between iOS and Android

On the other hand, I believe that WiFi is not right with some connectivity issues.

However it's still early days, let's see how it goes
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] bark1234:
How did you enroll ? Beta app doesn't shows any option. Did you enroll on Chinese beta web page ?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] aamaaeg:
I applied to the international version. Hasn't got a reply. But 2 weeks later got the OTA update.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
I'm still on EMUI 9.1 because EMUI 10 ruined the speaker sound quality. How is it on EMUI 11?

Oh and the multi screen dock: does it let you launch all the apps you have in split screen or in a floating window, or only some approved apps?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
sound quality is veeery subjective, so cant comment on that. especially since i wasnt on 9.x for long, updated to 10 almost instantly.

as for the multi window option, it basically lets u add any app to a sort of quick select, from which u can then create a bunch of floating windows (resizeable)
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Thanks for the reply.

Would you say the sound quality of the speaker is the same as with EMUI 10?

And for the floating windows: it let's you add any app that's installed on your phone? Even let's say the "Settings" app?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
it seems to be a tad louder than before, but again, very subjective.

as for the floating windows: as far as i can see, it only covers user installed apps, no system apps.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Thanks mate. Sorry for all the questions but I want to be sure that I'm upgrading to something I'm going to be liking.

One last question, about the floating apps. Can you only launch a floating app from the apps you've put in the dock? Or can you also launch them from the whole list of apps you get when you press the "+" icon (or do you have to put them in the dock first)?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
no worries, happy to help. the dock has a total of 15 slots and can be configured freely with any user installed apps. once added, u can then open the apps from the dock as floating windows.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
And is there any other way to launch a floating window or go to split screen? Or can you only do it with apps that are in that dock?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
the dock is not always showing, if that is your worry. there is a shortcut gesture, dragging from the side of the screen towards the center and then hold a bit, that brings up the dock.

if i remember correctly, there is a different gesture that can activate split-screen mode with currently running apps. dont remember what that was though (i only ever use one floating window at a time, usually for watching a video while surfing the net or texting)
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] andromeda1968:
yesterday my Huawei Mate 20 X chinese version update with EMUI 11
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
welcome to the EVR-AL00 EMUI 11 family :) where are u located?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] andromeda1968:
Italy
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] nickb99NZ:
Did EMUI 11 introduce a tap-to-wake feature for the front screen? I read they might include a back panel tap feature, but that is of less interest to me.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] PhoneTechShop:
can u extract sms apk and post it ?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
lemme see what i can do mate

edit:

Uploaded on MEGA: https://mega.nz/folder/lPA3XSYB#K3sWqh0o0PGeUflujIq3vQ

Included MMS.apk as well as two services related to MMS (not sure if needed to install properly)

Also added the Call Recorder app since I saw so many people asking for it :)

Let me know if this works! Extracted it from the system partition in the "app" and "priv-app" folders.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Thanks!

Oh one last question: can you resize the floating window? EMUI 10.1 didn't let you resize it but maybe they've changed it in EMUI 11.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
yes, that is indeed possible.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Thanks!
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Another question about the speaker if you don't mind.

With EMUI 10, when you're listening to something on the speaker and you turn up the volume, when the volume reached about 75% the sound quality changed from sound with a lot of bass to sound with a lot less bass (probably to protect the speakers). How is that in EMUI 11?

Thanks!
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
Hm, I can't notice any significant changes regarding bass over speaker when going over 75%. But I haven't noticed this behaviour, although this could be because I rarely listen to music over speaker, it's more focused on speech (YT, TV Shows, etc.)
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Could you try it with a music file? And then put the volume to 50% and gradually increase it whilst listening to the music file and see what happens. If it just gets louder, perfect. But if around the 75% audio mark the audio quality suddenly degrades, not so good.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] PhoneTechShop:
It is when u on max and go 5 times down the bass will engage.. it is just protection that speakers will not go brrrr or chrrbrr
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] PhoneTechShop:
Protection otherwise speakers will rattle
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] PhoneTechShop:
Guyz watch dis on your phone and u will hear sound behind you

Ramp it up on max 😋
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
So that's actually the case on EMUI 11? Have you tested it?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] PhoneTechShop:
No it's been since...
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
I don't understand. So it's not the case in EMUI 11?
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] PhoneTechShop:
Nooo just protection tgey could set it at least one more step louder or two...

That's deep in scrip of emui programming or android /linux itself

Likr protection of headphones... Won't go further unless you confirm to have them louder
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Oh okay thanks!
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] jbmc83:
yeah, i did exactly that after ur inquiry before. tried two songs with lots of bass and didnt notice much except for the sound getting louder, thats it.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] Spir4:
Cool thanks very much, really appreciate it!
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] loudawg11:
Received the update on my Huawei Mate 20x 4G Sunday March 28th in Ohio
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] nickb99NZ:
Yeah, got mine here in the UK just last week.
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] mscion:
Hi. Did you do anything special to get this update? What kind of sim was in phone at time of update. Thanks!
[Huawei Mate 20 X ROMs, Kernels, Recoveries, & Othe] loudawg11:
Sorry for the late reply since the XDA UI change over I don't get notifications now. I just have my standard AT&t SIM card in. I did go to settings then system updates when I triggered the update.
[Xiaomi Poco X3 NFC Questions & Answers] graveur01:
Hi all

I wanted to flash my POCO X3 NFC, with XiaoMITool V2.

The process worked well, it installed TWRP, then I saw the transfer of the rom. But at the reboot it displays the TWRP menu all the time.

I tried installing a rom found here, directly via an SD card, but it still boot on TWRP.

I think I was wrong and put in Rom TWRP. If so, or for that matter, do you have a solution to help me please

Thank you all for your answers and solutions I hope.

Thanks again

Burner
[Xiaomi Poco X3 NFC Questions & Answers] quicksilvree:
Be more specific ..... Have u opened the bootloader??? If so which version of TWRP have you installed ....which ROM did you flash and what steps did you take to flash said ROM.
[Xiaomi Poco X3 NFC Questions & Answers] Sofiane toumi:
Format data in twrp and select ,yes, after rom flashed
[Xiaomi Poco X3 NFC Questions & Answers] graveur01:
I managed to install a stock rom, 12.04, but now I don't have TWRP anymore.

I do not understand
[Xiaomi Poco X3 NFC Questions & Answers] BigBrother101:
Try to ask in the ArrowOs thread because it is very active ;)

https://xdaforums.com/t/nightlies-rom-11-0-0-arrowos-poco-x3-official-surya-unified.4192145/
[General Questions and Answers] mgsgta3:
So I had a stylo 5 and I loved it, still love it. It's a great poor-mans-Note and it ran everything (fortnight, google AR, Ark:survival evolved). It was on android 10.

Then a slick salesman at the phone place said it'd be cheaper to get a new plan on metro with a brand new phone than I would've been to pay my bill, and it was..

The only thing is that the phone was a Lg k51. When I looked it up it had the same EXACT specs at the stylo 5 minus the stylus, so I figured it'd be the same experience otherwise. For some reason it is not. It is a comedy of errors with every new thing I learn it can't do that my stylo 5 could do despite being a year older. OS updates have not helped, and I just don't have any idea what could cause this phone to be so incapable. App after app on google play says it's not compatible with the k51.

Does anyone know what's going on here, and/or why the disparity even though specs are the same?

Thank you
[General Questions and Answers] mgsgta3:
Bump
[General Questions and Answers] DragonFire1024:
Anything from boost mobile is garbage. Probably one of the most restrictive devices I ever owned with the exception of a few good tricks I know. I am just glad I didn't pay anything for it, not that I would've ever bought it anyways.
[General Questions and Answers] WoodEe23:
You're tripping dude even though it has the same specs as the Stylo 5 case 51 works great for me and mine stock non rooted maybe you don't know how to use your phone right just blows me away when somebody says that a phone sucks and I know for a fact that it does not
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Snowleopard1900:
I just got the Android 11 update force dropped from T-Mobile. It seems fine, looks like One UI 3 is slightly different and faster. Anyway.
[HTC Vox] h4waii:
S740 was announced today. Will update post with more info, I am on my Vox right now.
[HTC Vox] matrix77:
Here are more details from gsmarena, it looks nice:

HTC S740

Coming as a successor of the HTC S730 the S740 is a smartphone with a sliding-out four-row QWERTY keyboard. It boasts a 528 MHz Qualcomm MSM7225 processor and the greatly sounding 256MB RAM.

The display of the HTC S740 is a 2.4" QVGA one (no touchscreen, of course). All four GSM bands and two UMTS (900 and 2100 MHz) bands are supported by the new phone. There is also HSDPA support to make sure that the quickest network data transfers around are available.

Coming with a HTC Touch Diamond-like back, HTC S740 has a 3.2 megapixel fixed-focus snapper on board. Some of the other more important features are built-in GPS (with A-GPS support), Wi-Fi and the HTC ExtUSB slot which combines a mini-USB 2.0 and an audio jack.

The HTC S740 is going to be available across Europe from September, but there is no information regarding its pricing yet.
[HTC Vox] ChiemY:
keyboard open on the other side
[HTC Vox] frauhottelmann:
I just hope it'll ship with 6.1 with languages other than English, so we can use it!^^
[HTC Vox] kel187:
nice one! thats the device i saw at work last week... but the prototype has no qwerty keyboard :( ... cant wait for it :)

http://xdaforums.com/showthread.php?t=418902
[HTC Vox] h4waii:
Hopefully they set the price right, it is either this, a Touch Pro or a Nokia E71 to be my next device.
[HTC Vox] Doktor M@buse:
I really want to know how to handle the 'cursor-key' in the middle of the device. On the pictures it looks odd to me.
[HTC Vox] Vener:
What i don't like about this device

larger overall

20 grams heavier than S710 which is already very heavy

no autofocus
[HTC Vox] TheBo:
looks interesting but...nothing new on the sun...:p

OT: I have afriend wich has an Omnia i900 and with my big surprise I noticed it has WM 6.1 localized in my language...so I think out there lot of devices has WinMo 6.1 localized in different devices...but why don't Microsoft release the localized emulator images???? Damn!
[HTC Vox] sorg:
HTC - stupidity without limits. This is right slogan for this company :)

When they will understand that qwerty keyboard for smartphone is like fifth leg for dog?

People who buy smartphone, expect some slim, lite device with some extra functionality provided by WM. Otherwise it's better to buy PDAPhone with full WM power and many different input options.

sick...
[HTC Vox] VOXer:
The price on HandTec.co.uk is showing £469.99 (£399.99 ex vat)

http://www.handtec.co.uk/product.php/1430/htc-s740
[HTC Vox] matrix77:
Qwerty keyboard is something that is a "must" when you use it once and write an sms/e-mail on your phone. I won't buy a phone without qwerty in the future.
[HTC Vox] bellor:
You are clearly not on the right forum for this kind of comments. It's clear that everyone who is on this discussion forum likes qwerty on their smartphone... since we all bought the S710.
[HTC Vox] TheBo:
A B S O L U T E L Y !! I must agree with you
[HTC Vox] skchattha:
I think you should look for Nokia toys like smartphones with basic functions making, receiving calls and SMS. You would get such toy phones very slim, lite and offocourse extra functionality of few JAVA inbuilt games. :D

HTC S710 and next versions are beyond your limits because you are not even able to understand the concepts of these phones at all. :D
[HTC Vox] frauhottelmann:
I think it's kind of pointless to put such a processor in this phone. There are rarely any apps for Standard that make use of such processing power! It'll only drain the battery. I think 400 MHz is perfect for a WM Standard phone. For the Touch Pro though it's a must have. And now there is only one reason that keeps me from buying a Touch Pro - it's price...

Anyway, htc put a page online: http://www.htc.com/www/product.aspx?id=57634

I think the messed up the standby times (under 3G more than GSM???)!
[HTC Vox] Vener:
what if the processor is underclocked when no apps are running?
[HTC Vox] skchattha:
its qualcomm processor and OMAP is better as compared to Qualcomm so might be 528 MHz would work little better compared to OMAP 200 MHz
[HTC Vox] obscurespectre:
beautiful phone but its gonna be one fingerprint magnet :D
[HTC Vox] tuleggi:
I am disappointed.

The only think HTC has been able to do is add an GPS (very usefull by the way!).

But NO INNOVATION... and even heavier!!

why they dont do a big touch screen on the front coverything everything (iphone style) then you can slide it on the side for a qwerty keyboard to appear (very usefull!) or you can slide it on the bottom for a numeric pad (very usefull!) to appear for use without sometime painfull touchscreen with one hand.

Would this be something nice? other innovation will be more than welcome... Engineer at HTC what are you doing? sleeping?? :p
[HTC Vox] 128MB:
I'm realy enjoying the full keyb ^^

at first i was thinking how the f* am i going to typ on that with my fat thumbs ? :p

But it works perfect. I like it more than the XT9 and works faster for me.
[HTC Vox] h4waii:
Pantech Duo?
[HTC Vox] TheBo:
I was thinking about that too! But I remembered was a news I read a lot of time ago regarding a possible Nokia patent !?!?:confused::confused:
[HTC Vox] h4waii:
There is a hands on with the S740 out now.

http://translate.google.com/transla...s/detail.asp?a=321&hl=en&ie=UTF-8&sl=cs&tl=en

http://www.newmobile.com/085758/2628/IFA-2008:-Real-life-pictures-of-the-HTC-S740.html

Thinner than the Vox, but it's too tall!