Bounty 100 EUR - Displayport Alt Mode - Enable USB C to HDMI - Sony Xperia XZ Premium Guides, News, & Discussion

Hello devs,
Please look into enabling the displayport alt mode!!!
Its really frustrating how this phone cuts quality (480p) when used with a 4K TV. The only way is usb to hdmi cable, but sony decided to disable this feature.
Can you please make a tutorial on how to enable this?
Bounty 100 EUR

Up

I have found this intresting information:
https://patchwork.kernel.org/patch/9195059/
It should be that easy as adding some lines of code?

Another intresting video:
https://www.ifixit.com/Guide/Sony+Xperia+XZ+Premium+USB+Port+Replacement/97361
From this video we know thatXZ premium has all the USB type c 3.1 pins connected to the motherboard and therefor to snapdragon 835 (5:07 in the video)
Also take a look at this:
https://cdn.arstechnica.net/wp-content/uploads/2015/01/type-c-pinout.png
Seems like the tx pins are responsible for Displayport alt mode
The good news is that they are soldered into the motherboard connector
Is it possible that the data pins have been disabled in kernel?

I look forward to this thing happening! (Although I'm waiting for a DRM backup method first)

as I said on the other thread, don't hold your breath, pins on a socket and PCB mean diddly squat.
Sony may very well disabled this or not even included supporting chips. I would strongly suggest if anyone wants to confirm this to find the same chipset on a different device with a working video out, then take a super high resolution photo of both sides of the PCB paying special attention to the numbers on the chips, then someone else do the same with the XZp
we will never be about to check the traces since it will be amulti layer PCB and we wont be able to check if any traces have been severed from a photo. but we will know if there are some supporting chips missing.

I disagree with you. Today chips are not just chips, are SOC.
Hardware is there. This tx prins are active for usb audio also, but not for video data transfer.
Sony hasn't implemented snapdragon 835 low cost version, because it does not exist. There are no other chips related to display port alt mode. It is done in Sd835. Simple as that.

Inerent said:
I disagree with you. Today chips are not just chips, are SOC.
Hardware is there. This tx prins are active for usb audio also, but not for video data transfer.
Sony hasn't implemented snapdragon 835 low cost version, because it does not exist. There are no other chips related to display port alt mode. It is done in Sd835. Simple as that.
Click to expand...
Click to collapse
SoC have been used for a long time mate, trust me, if Sony didn't want something there are dozens of things they can do to stop it. Its been a problem with SoC vendors for decades. a physical connection means nothing if its traces are cut
Of course its perfectly possible its just software limited but its equally possible its not physically possible. The proof will of course be if you can get it working... but They have been doing this for years now and are getting pretty good at it.

dazza9075 said:
SoC have been used for a long time mate, trust me, if Sony didn't want something there are dozens of things they can do to stop it. Its been a problem with SoC vendors for decades. a physical connection means nothing if its traces are cut
Of course its perfectly possible its just software limited but its equally possible its not physically possible. The proof will of course be if you can get it working... but They have been doing this for years now and are getting pretty good at it.
Click to expand...
Click to collapse
If you are so confident, then find out for your self, I would say.

You want me to prove that its broken or working? firstly I have no intention of putting any effort in to getting this to work, my device is perma locked and I really cant be arsed taking it apart and try to write over the ROM just to attempt to get this working.
Which leaves me with trying to prove its broken. as Ive said, multi layer PCBs will be impossible to check this without taking the device apart hell, ANY PCB will be impossible to check without checking each trace and that's not to say if QC hasn't used any fuses to blow certain circuits within the chips. If you get it working, then you will have your proof. all I'm saying is don't be surprised If it doesn't happen. it wont be the first time a manufacture has done this.

dazza9075 said:
You want me to prove that its broken or working? firstly I have no intention of putting any effort in to getting this to work, my device is perma locked and I really cant be arsed taking it apart and try to write over the ROM just to attempt to get this working.
Which leaves me with trying to prove its broken. as Ive said, multi layer PCBs will be impossible to check this without taking the device apart hell, ANY PCB will be impossible to check without checking each trace and that's not to say if QC hasn't used any fuses to blow certain circuits within the chips. If you get it working, then you will have your proof. all I'm saying is don't be surprised If it doesn't happen. it wont be the first time a manufacture has done this.
Click to expand...
Click to collapse
Nobody will be surprised, don't worry. Just that we don't know doesn't mean that we shouldn't try.

Trust me, displayport alt mode is disabled in kernel.
Tx pins are active for usb audio playback!

It seems the display link hardware is our only choice for the moment...
https://forum.xda-developers.com/oneplus-5/accessories/usb-c-to-hdmi-adapter-t3631169/page8

Inerent said:
Trust me, displayport alt mode is disabled in kernel.
Tx pins are active for usb audio playback!
Click to expand...
Click to collapse
Sorry bud, that doesn't mean anything more than USB Audio is connected...

Check this out! https://youtu.be/Ff9GfDpH42Q
Maybe some devs look into the buildprop and kernel of the s8 to search for relevant data and compare them with our xzp...
P. S. another proof that makes me think that this sh...t is disabled in software is that with the displaylink apk the one plus 5, xiaomi mi6, etc are working. The data is sent by Displaylink app to those TX usb pins and works!
So with an app it can be sent, but with our sony software not? C'mon!!! This is BS!

Inerent said:
Check this out! https://youtu.be/Ff9GfDpH42Q
Maybe some devs look into the buildprop and kernel of the s8 to search for relevant data and compare them with our xzp...
P. S. another proof that makes me think that this sh...t is disabled in software is that with the displaylink apk the one plus 5, xiaomi mi6, etc are working. The data is sent by Displaylink app to those TX usb pins and works!
So with an app it can be sent, but with our sony software not? C'mon!!! This is BS!
Click to expand...
Click to collapse
your saying that the Displaylink APK works on the Sony Xperia XZp and on the Sony XZp, data is sent to the correct PINs on the USB-C out but it doesn't display anything? on a linked display?

Need help from rooted devices.
Please add or search in buildprop for ro.hdmi.enable=true
If it's present like this #ro.hdmi.enable=true, just delete the #
If it's not present, just add this line ro.hdmi.enable=true
Save and test only with usb-c 3.1 to hdmi and display port alt mode compatibile cable!
Let me know

Inerent said:
Need help from rooted devices.
Please add or search in buildprop for ro.hdmi.enable=true
If it's present like this #ro.hdmi.enable=true, just delete the #
If it's not present, just add this line ro.hdmi.enable=true
Save and test only with usb-c 3.1 to hdmi and display port alt mode compatibile cable!
Let me know
Click to expand...
Click to collapse
yours not root-able?

Hi Dazza! Yes mine is not rooted ... yet! Enabling Display port is the final step towards rooting my phone.
For devs: BoardConfig.mk and BOARD_KERNEL_CMDLINE

Inerent said:
Need help from rooted devices.
Please add or search in buildprop for ro.hdmi.enable=true
If it's present like this #ro.hdmi.enable=true, just delete the #
If it's not present, just add this line ro.hdmi.enable=true
Save and test only with usb-c 3.1 to hdmi and display port alt mode compatibile cable!
Let me know
Click to expand...
Click to collapse
I already tested but it didn't work.

Related

Building ARM PC from old qualcom boards?

Sometimes good ideas come from bad situations! Yesterday my girlfriend accidently kicked my lg optimus v into a glass of ginger ale. This is really putting a damper on my kernel development projects.
Anyways to see if I could save the phone at all to use till the replacement gets here I had an idea. Why not reuse the working board and build a mini arm pc with embedded linux on it.
So I'm wondering if anyone out there knows if qualcom will give you chipset schematics and data sheets there site seems fairly sparse. I need schematics for the msm7627. See I figured you could replace the charger with a five port hub then bypass the battery and connect a power supply to the board. You can easily build keyboard mouse support into even the android kernel. But I'm wondering how to connect a monitor maybe if you knew the lcd pin layout you could connect a vga screen to the old socket for the lcd. This is where I think I need schematics unless the pin layout is standard?
I have so many qualcom arm phones with screen damage why not make them into low powered desktop arm dev systems or server, routers, embedded toasters?
Sent from my SPH-M930BST using XDA App
Qualcomm? Schematics for Qualcomm CPUs? Hah! Sorry, forget it. It's probably harder to get than sourcecode of current version of Windows.
There are leaked parts of schemas/manuals for older SoCs. Also if you can find ARMLinux (Android) kernel for such qualcomm CPU - You can build whole new system basing on SFRs description and deep analyse of mainboard. But without schemas it's hundreds hours of blind shots.
I think the biggest issue your going to face is the fact that Qualcomm has never been keen on giving out architectural sheets on their chipsets. Since most newer chipsets incorporate improvements from older models, it would be akin to them giving their competitors access to some very guarded information.
The odds of them giving the design to you without you representing a company that is licensing their chipset for use in a phone, greatly decreases your chances even further.
On a positive note, bypassing the battery should be relatively simple, however, as with all lithium batteries there is a voltage control mechanism built into the phone that you will need to adapt to function properly with a different type of power supply.
As for the monitor, the odds of you being able to adapt a VGA/HDMI cable to a system that is designed to read input from the touchscreen/digitizer is another chore, and would require you to pioneer something from scratch.
I would say your work is cut out for you.
If you really want to do something like this, buy a Raspberry Pi when they hit. It'll be much more adaptable to what your looking to do.
~Jasecloud4
Yap, why going for stuffs like dat? It will blow the entire time u have got to work with roms.
About supply, yap u can manage it.
About chip spec. , its hard
About external/internal display, its nearly impossible unless u have VGA/HDMI o/p.
Sent from my HTC HD2 using xda premium
Well my primary device is is trashed from it beimg totally drenched in soda so all my kernel development is at a schreeching halt basically. Hopefully it will be replaced in the next few days so I can get back on track.
As far as building a little workstation goes that dream is dead lol. I bypassed the battery and hooked the board up to a power supply that was 3volts at 1300ma and it smoked the board. I have plenty of other qualcom phones with bad screens but I didn't realize that they were so closed. I was just tryin to make crap into something usefull lol.
Sent from my LGL55C using XDA App
[email protected]
this rasberry pi thing is exactly what I was looking for and its just the right price! Seriously this is goning to be an awesome little system to vnc into and build arm based assembly. The only thing qualcom has over this is that there are obviously kernel supported drivers for it to use the multiple arm chips and dsp chips so I'm assuming the low end msm 7x qualcom boards are a bit faster although idk they said this thing will push q3 at 1080p. I'm also looking at the beagleboard but this has such a nice price price 25 bucks is right up everyones ally. I smell an android port!
Sent from my LGL55C using XDA App
If you're looking for something with good open source support AND open documentation - check out the BeagleBoard and PandaBoard.
PandaBoard ES has the same CPU as the GNex.
rwgast said:
....So I'm wondering if anyone out there knows if qualcom will give you chipset schematics and data sheets there site seems fairly sparse....
Click to expand...
Click to collapse
Unlikely. Qualcomm considers the information proprietary and requires you to contact support. See Where are the datasheets?
Here are some! Hack away!

Razrdock Mod [Stage: I. Planning][Updated :P]

READ FIRST:
PLEASE DO NOT ATTEMPT THIS YET IF YOU DO NOT KNOW WHAT YOU ARE DOING, IT IS INCOMPLETE AND STILL REQUIRES ME TO BUY THE EQUIPMENT AND TEST EVERYTHING, I MAY NOT BE CORRECT IN SOME THINGS AND YOU MAY RUIN YOUR LAPDOCK, THANKS!
Alright I give credits to seven2099 for bringing this up, so now we have two projects to make the lapdock run on it's own.
So instead of using the CottonCandy FXI, I will be using the MK802 Allwinner A10 (When it gets back into stock).
giuanz has helped out a lot by getting a hold of one of these MK units before me... And gave very good details on the problems...
Log:
6/3/12 -- Posts: 1 2 3
So far: We discussed Voltage and amps that will power the MK, so far there are problems, but this is at a glance as we don't have a unit yet. But it seems that the lapdock won't proide enough juice to power the MK...
6/12/12-6/14/12 -- Posts: 1 2 3
Alright so guianz has recieved his MK units and 2 problems have come up...
1. The resolution is not compatible. The HDMI output on the MK doesn't give the lapdock resolution 1366x768. A solution may be done by extracting the file from the razr leak for the webtop that decides resolution and putting it in the MK unit. It may or may not work, lets hope it does!
2. The output:
It would refuse to boot with any USB port I tried it with (red light comes up but no boot) - it would only power up with the power supply. Didn't try with lapdock as I'm still missing the adapter cable but I bet it's a current limit problem, like it probably really takes more than 1a to boot.
Click to expand...
Click to collapse
That explains everything... Everything will be looked in, thanks...
Click to expand...
Click to collapse
What you need:
-Lapdock, NO?!?!
-Xacto knife or similar
-Hot Glue
-Screwdrivers (Unsure of which ones, will update)
-Maybe more, will update
What you need to buy:
-HDMI Upgrade Kit (May need up to 3)
-MK802 Allwinner A10
-HDMI Male to Micro HDMI Female Adapter
-Maybe more, will update
TOC:
I. Planning
II. Connections
-- First we must test to make sure that everything cable-wise is working (HDMI can be seen from lapdock, keyboard mouse goes through USB) so that we can move on the the software
III. OS + Software
-- We have to make sure that the drivers are working for ICS and that everything is setup correctly.
IV. Placement + Hardmod
-- We must take apart the lapdock (The back panels only), and the A10 to get them to fit and work properly. We must also get the on/off working by screen opening and closing)
V. Guide (When completed)
II. Connections
geeky-gadgets.com said:
The MK802 is also equipped with 2 x USB ports, one full-sized and one micro, and runs Google’s latest Android 4.0 Ice Cream Sandwich (ICS) operating system. As well as being equipped with a HDMI port for connecting to your monitor of preference.
Connectivity on the MK802 is provided by WiFi 802.11b/g, with 4GB of Flash storage as standard, which can be increased to 32GB via the microSD card slot.
Click to expand...
Click to collapse
So according to geeky-gadgets & the chinese retailers we have 2 USB ports, one full and one micro. Great isn't it? Not really, because the lapdock provides power through the micro-usb and the A10 has it's own power port... So we need to cut up the USB and solder the cables to two different connectors. The data cables will be soldered to the micro-usb connector from the HDMI upgrade kit, the power cables will be soldered to the power connector that comes with the A10.
But now we get to HDMI. This will take more time... We are gonna use the [HDMI Male to Micro HDMI Female Adapter] it will convert the hdmi from the lapdock straight to normal HDMI, this is a bit hefty so we will have to use a Xacto knife or similar to cut it up... Once we get it's guts then we can make room for it when we hardmod the lapdock.
III. OS + Software
To come, once I buy everything and get them connected.
What I think for now: Since ICS doesn't have any of Moto's drivers in it yet we can connect it to the lapdock and use the key+mouse proves that they must be generic drivers. (Have to test this theory)
IV. Hardmod + Placement
To come, once I finish the other two...
V. Guide
To Come, once I finish everything.
This looks like a good little project good luck would love to see an actual finished model.
Good Luck
The Atrix forums really are dead...
No No, i'll read your post and this remember me the mod of lapdock (HDMI) for use with other device (PS3). I plan myself to build an adapter for HDMI & USB for use it with other device (it your case the MK802 Allwinner A10).
Keep us updated for your mod
PS: A silent reader of XDA since modding my HTC Diamond
Great project! I might suggest using an atom system ?
Do they have one small enough that runs win 7, and in turn win 8...
Everything in next post...
Bump so people can see it. And a mini notice:
I will be listing many things on my ebay account to sell over time, many of which are from work... Others from home... Most of what you can buy will be used to fund for this project...
On a note if I can raise enough money, I should be able to make multiple of them to sell for cheap on xda... I'll see how it goes... So if any of you are interested in this project or what I've listed on ebay don't hesitate to buy it...
Ebay: myworld.ebay.com/ih3876
anyway the mk802 cortex a8 is missing some cpu power i thing
What do you mean? It's a 1ghz processor...
Hello Alaq,
I wish you come up with something and show us what useful stuff can be achieved with a lapdock. And that being said, i honestly didn'T like the thread title cause it reminds me us false motorola timing table. I hope this project doesn't become obsolete like motorola's update table.
Stage 1 : Wait 4 months
Stage 2 : Wait 2 months for rolling
Stage 3 : Weh bumped you, you wont get ICS. Hahah
Stage 4 : Buy a new motorola phone with ICS.
Semseddin said:
Hello Alaq,
I wish you come up with something and show us what useful stuff can be achieved with a lapdock. And that being said, i honestly didn'T like the thread title cause it reminds me us false motorola timing table. I hope this project doesn't become obsolete like motorola's update table.
Stage 1 : Wait 4 months
Stage 2 : Wait 2 months for rolling
Stage 3 : Weh bumped you, you wont get ICS. Hahah
Stage 4 : Buy a new motorola phone with ICS.
Click to expand...
Click to collapse
Some of you just aren't getting the point here, are you???
This is about trying something new, seeing if it can be done, and what the results will be. Some people like to try innovative ideas "just because". I don't believe Alaq asked for your approval to move forward with his project, so I would suggest if you don't like the thread, (or it's title), that you move on yourself!
<edit> Seems funny you would have this attitude since you have a Motorola modding forum! Jealous???
@CaelanT,
Don't bark towards me, move along
@Alaq,
I didn't mean to approve your ideas, just expressed myself. If you felt offended, i am sorry.
Semseddin said:
@CaelanT,
Don't bark towards me, move along
@Alaq,
I didn't mean to approve your ideas, just expressed myself. If you felt offended, i am sorry.
Click to expand...
Click to collapse
Shukran...
FYI. I don't know if this link helps. I'm posting it, just in case.
http://www.techrepublic.com/photos/...10&tag=thumbnail-view-selector;get-photo-roto
To my knowledge that Bionic lapdock is identical to the Atrix one but with the HDMI and MicroUSB connectors reversed.
BTW I ordered three MK802's in the 1GB RAM version and the status has just changed to "shipped".
Now that I read the rumor about an early ICS demo, I am torn between waiting for ICS and trying this mod.
Cheers, G
I like webtop (or ubuntop)... Is the plan to run a similar ubuntu syste, or a hybrid, or just tabletUI?
You can run Android ICS or Ubuntu on the MK802 I read somewhere... So I'll look at all the possibilities...
MK802 disassembly pics
FYI.
http://3dobjectifying.blogspot.ie/2012/05/mk802-received.html
still waiting for my MK802's , and have already three more friends who want one
also:
1. MK802 audio is only through HDMI - to use a headset when I want, I think I'd add a 3.5mm stereo switching jack somewhere on the back of the lapdock
2. MK802 has no bluetooth - but the pics in the link I posted show a USB bluetooth dongle attached to it - I think that's a good idea if you want bluetooth
3. MK802 is only 802.11 b/g networking no n - I suppose you'd have to live with that.
Cheers and keep us posted! I'll do the same - giuanz
giuanz said:
FYI.
http://3dobjectifying.blogspot.ie/2012/05/mk802-received.html
still waiting for my MK802's , and have already three more friends who want one
also:
1. MK802 audio is only through HDMI - to use a headset when I want, I think I'd add a 3.5mm stereo switching jack somewhere on the back of the lapdock
2. MK802 has no bluetooth - but the pics in the link I posted show a USB bluetooth dongle attached to it - I think that's a good idea if you want bluetooth
3. MK802 is only 802.11 b/g networking no n - I suppose you'd have to live with that.
Cheers and keep us posted! I'll do the same - giuanz
Click to expand...
Click to collapse
I missed it by a day last week... They were sold out within 2 days lol... Anyways I'll start taking apart my lapdock to check the connections and make some space...
Alaq said:
I missed it by a day last week... They were sold out within 2 days lol... Anyways I'll start taking apart my lapdock to check the connections and make some space...
Click to expand...
Click to collapse
there are more sellers on Aliexpress who claim they have it, although the only seller which already has feedback is sold out.
Also there are some on sale on eBay.
btw if you want to have a laugh, look at this: http://www.mk802.net
(LOL, the Chinese are discovering what intellectual property means)
btw2 I just made an experiment. I forced discharge of my Atrix battery to 0% - basically till the point it would only boot in charger mode not full OS.
With the lapdock open, it would charge. With the lapdock closed, it would not charge.
So my idea of how the lid open/close switch works is like this:
1. lid open -> lapdock gives USB power to phone
2. lid closed -> lapdock checks HDMI port for signal. If HDMI signal present, lapdock gives USB power. Otherwise USB stays off.
That also would explain why, when you connect the lapdock, the first thing the phone does is send that M logo ove the HDMI port - just like a way to say to the lapdock: "hey wait for me I'm there, give me USB (so I can recognise the keyboard and trackpad) and I'll boot webtop".
Now I think if this logic turns to be true, you would not even need an extra power switch! Just open the lid to power on - it will stay powered on as long as there is HDMI signal - and when you want to shutdown, youĺl do it through the menu.
The only annoying thing is that there won't be any notification when the battery is about to run out of juice.

Any legit way to identify fake GS4?

Howdy pals
Just wanna to ask, is there any legit way to spot the fake GS4?
Don't suggest to check the hardware, the clone is perfectly made now with 100% detail same with the original
Air gesture, smart video and other GS4 features now are cloneable. So any legit way to spot them?
:laugh:
Connect to Kies and check if it's genuine or not
Crauze said:
Connect to Kies and check if it's genuine or not
Click to expand...
Click to collapse
any other way without using computer?
access to pc is limited here
thanks for replying :laugh:
S4 is one of not so many mobile device on the market able to handle new HEVC (successor of MPEG4) video codec (it requires very efficient CPU and software stack).
try to find sample HEVC clip (preferably high bitrate) and put it on uSD card or USB pendrive with OTG adapter cable. clones will not be able to handle it correctly.
funf sctsPl
Try to register it on Samsung website (using the SN, IMEI or HEX)
You can also check IMEI alone. See this page:
http://www.renjusblog.com/2009/11/check-imei-online-verify-mobile-genuine.html
mssaleh said:
Try to register it on Samsung website (using the SN, IMEI or HEX)
You can also check IMEI alone. See this page:
Click to expand...
Click to collapse
hard to do, my phone is blackmarket phone
Diamond 2 owner said:
S4 is one of not so many mobile device on the market able to handle new HEVC (successor of MPEG4) video codec (it requires very efficient CPU and software stack).
try to find sample HEVC clip (preferably high bitrate) and put it on uSD card or USB pendrive with OTG adapter cable. clones will not be able to handle it correctly.
Click to expand...
Click to collapse
yes, but i can't find this is a legit way
and this can't be done on other phone
I say 95% of clones may not have the S600 or Exynos 5 chip so you might wanna do a benchmark? And I also doubt they'll would put highly sensitive touchscreen for air view.
Sent from my GT-I9505
ijoin said:
Howdy pals
Just wanna to ask, is there any legit way to spot the fake GS4?
Don't suggest to check the hardware, the clone is perfectly made now with 100% detail same with the original
Air gesture, smart video and other GS4 features now are cloneable. So any legit way to spot them?
:laugh:
Click to expand...
Click to collapse
You can use CPU - Z or My DROID system info.
Legitimate way to check if a black market phone is genuine? You gotta be fu*ckin' kiddin' me, LMFAO.
From what I read a fair few didn't boot into download mode when you pressed volume down home key and power.
Not sure how relevant that info is anymore as this may have been fixed...
I am speaking from experience. I bought a clone thinking it was a genuine s4 and bought a spare battery from amazon, when the battery came it didnt fit in the clone phone, it was about 1mm too thick, but the cover will not attach to the phone. also the back cover is easy to peel off of a clone. I resold the clone and bought a real s4 from tmobile and the spare battery fits and the back cover is harder to take off. before i got the genuine s4 it was really hard for me to tell the difference i really thought i had a real one, but after using a genuine one i can spot a fake pretty quick, the oem battery is a easy dead give away that owrked for me. It may not work for anyone reading my post and if it doesnt then so be it, please dont flame, thanks
ijoin said:
Howdy pals
Just wanna to ask, is there any legit way to spot the fake GS4?
Don't suggest to check the hardware, the clone is perfectly made now with 100% detail same with the original
Air gesture, smart video and other GS4 features now are cloneable. So any legit way to spot them?
:laugh:
Click to expand...
Click to collapse
Go to Odin Mode,Fake GS4 dont have Odin Mode..

Nood USB Audio Question

I don't THINK this would work, but would like some clarification before I rule it out completely:
https://www.amazon.co.uk/3-5mm-Audi...t_2?ie=UTF8&psc=1&refRID=WRW5KP18B5JCKNY03247
Yes or no?
Edit - yes, I realise I also spelt N00B wrong too!
It would need a chip inside of that cable to tell the phone that it's a audio usb device. Without that chip no idea what would happen. In the worst case it would short Your micro usb(very dangerous) or short data pins which isn't as dangerous but still. If You wanna buy it then make sure that You plug it into some cheap phone with android just in case if something will go wrong. I've already seen lightning port fans that used to nearly kill iPhones on Amazon. So be careful.
Although.. in developer settings there is "usb configuration" and there You can choose MTP, RNDIS etc. But. There's also MIDI and Audio Source. So.. it COULD mean that it maybe somehow routes analog audio signal through the usb port. But I highly doubt it.
So. If You wanna buy it, make sure that it won't kill Your usb port or the whole phone
Wow. I actually never thought it could have that much of an effect since it potentially isn't power producing, but I guess it is a risk.
Yeah, I read up on the developer settings, which is why I wasn't 100% sure, but after what you say, I don't think its worth the risk, unless a kind fellow member wants to tempt fate and let me know the result?
Anyone else have any thoughts?
Sent from my SM-G935F using XDA-Developers mobile app

[Need spec explanation] Plan to buy Xiaomi Mi A1 but... USB type C

Hello everybody,
I plan to buy a Xiaomi Mi A1 but there's an hardware related issue that set me up.
This issue is called micro USB type C.
Since almost nobody got it, I know having this kind of stuff will be hard but I'm ready to be a charging-loner. I won't compromise my buy just for a detail (between the facts that there's no FM radio and NFC also)
However! I am new to these technical questions and I'm not really at my ease. So I'd like to know some specs about this technology.
I DO NOT expect to have better charge/data transfer performances with it, because I got old stuff I won't change for the phone, on my PC for exemple (no way to pay for replacing my USB type B 2.0).
So do the cable the seller provide (if provided) is good for my everyday use? Let's say I want to plug my phone to my PC to drop some pictures. Will it work without harming anything or I'll have to buy more cables or adapter? Also can I wire a single charging block with a micro USB type C - USB type A/B ?
You can just get micro USB to USB C adapter plug things, it will work fine. USB Cable is fully backwards compatible. The adapters are like a dollar or more/less and you can find them on any decent gadget site or eBay. Get a couple and keep one in your wallet even.
Phone comes with a USB C cable with regular USB on the other end, it's nothing special. You don't need a USB C port on a computer.
Start with hardware I'm satisfied with my mi a1 I can use it with anything and anywhere sync with pc my console tv no problem I'm using it just like before I used my galaxy s2 (5 year older device) I didn't purchased anything separately mi a1 come with one adaptor charger and a one meter USB type c cable and my pc more older then my galaxy s2
Talking about FM you can run any fm app. it have fm hardware I'm on custom rom and nowdays developer provide fm in there custom rom on stock you can get it via root access and installing spirit fm. You said you're not aspecting better data transfer or charging so it's pathetic. (no offense sorry but you are living in 80)
In this era company's trying to provide there customer better hardware in cheaper cost and that's a future!
Xiaomi didn't provide fast charge for our device but it capable for it why!? because if they purchase license for quick charge from qualcomm so they must pay for it or this purchase will definitely become heavy on customers whereas without quick charge my device charge full in one and half hour (if I'm on stock rom maybe one hour and 45 minutes exactly) but it more faster then my old galaxy s2 it's tack up to three hours for full charge replaced battery 1650 mah. file transfer rate is satisfying I mention that I'm using older pc.
On hardware level that device have Samsung EMMC, DDR, front camera LCD is more bright then Moto g5s plus my friend have that device (g5s+).
Talking about warranty I've read about that on XDA and YouTube you can claim your warranty whereas you flashed custom rom on it (just flash stock rom and lock boot loader your warranty is back).
Thank you for you answers!
Actually I can explain why I seem to "hate" this new kind of USB. Although it's really practical, I was just affraid to pay lot and having to think too much just for a cable.
Before I create this thread I read articles about this in my native language, and the comment were full of oldies complaining that "well another stuff our USB are already dead they're annoying it will always go faster we'll have to pay always more" blah blah blah.
I didn't really care of these messages, but articles (well written and purely objective) talked about harm in a specifical case due to incompatibility so I was affraid. This is also the reason why I didn't specially expect better performance, for exemple in charging, in the case I charge my phone on my PC. But maybe with a dedicated block charge is faster, I believe that but if it's not the case for some reason (I'm really lost...) I won't be deceived.
You managed to reassure me so it's fine. I just got one last question I'd like you to answer if you know.
I know basically it's a hardware related thread, but to avoid thread pollution if I could avoid creating another...
It's about root, especially under Oreo, with a process that seems really... Hard. Never heard about a device you have to flash a modified kernel to work before, and as a camera problem troubleshooting the fact to set your SELinux environment to permissive... Just crazy for me. What do you think?
Atronid said:
Thank you for you answers!
Actually I can explain why I seem to "hate" this new kind of USB. Although it's really practical, I was just affraid to pay lot and having to think too much just for a cable.
Before I create this thread I read articles about this in my native language, and the comment were full of oldies complaining that "well another stuff our USB are already dead they're annoying it will always go faster we'll have to pay always more" blah blah blah.
I didn't really care of these messages, but articles (well written and purely objective) talked about harm in a specifical case due to incompatibility so I was affraid. This is also the reason why I didn't specially expect better performance, for exemple in charging, in the case I charge my phone on my PC. But maybe with a dedicated block charge is faster, I believe that but if it's not the case for some reason (I'm really lost...) I won't be deceived.
You managed to reassure me so it's fine. I just got one last question I'd like you to answer if you know.
I know basically it's a hardware related thread, but to avoid thread pollution if I could avoid creating another...
It's about root, especially under Oreo, with a process that seems really... Hard. Never heard about a device you have to flash a modified kernel to work before, and as a camera problem troubleshooting the fact to set your SELinux environment to permissive... Just crazy for me. What do you think?
Click to expand...
Click to collapse
To root the phone you can simply flash Magisk zip after booting temporary TWRP. To fix camera lags there is a specific module that allow necessary permissions while mantaining selinux enforcing.
https://forum.xda-developers.com/mi-a1/themes/module-long-camera-start-fix-mi-a1-t3745262
sipollo said:
To root the phone you can simply flash Magisk zip after booting temporary TWRP. To fix camera lags there is a specific module that allow necessary permissions while mantaining selinux enforcing.
https://forum.xda-developers.com/mi-a1/themes/module-long-camera-start-fix-mi-a1-t3745262
Click to expand...
Click to collapse
I'm OK with that, but it's only valid with Nougat, not Oreo?
I didn't hear that much about camera lags but worse, camera not working at all.
It was on Oreo, but I could try to root before getting the Oreo update after all.
Atronid said:
I'm OK with that, but it's only valid with Nougat, not Oreo?
I didn't hear that much about camera lags but worse, camera not working at all.
It was on Oreo, but I could try to root before getting the Oreo update after all.
Click to expand...
Click to collapse
It's valid on Oreo too, camera working fine, it doesn't work only on a beta leaked ROM, no problems if you keep Stock 8.0 ROM or Any 8.1 custom ROM.
N1ck474 said:
It's valid on Oreo too, camera working fine, it doesn't work only on a beta leaked ROM, no problems if you keep Stock 8.0 ROM or Any 8.1 custom ROM.
Click to expand...
Click to collapse
Alright! Thank you everybody
Atronid said:
Hello everybody,
I plan to buy a Xiaomi Mi A1
Click to expand...
Click to collapse
Don't do it bro...
AwayForSomeone said:
Don't do it bro...
Click to expand...
Click to collapse
Why should I not buy it?
Atronid said:
Why should I not buy it?
Click to expand...
Click to collapse
To many defects and problems with this smartphone... like proximity sensor, sd card, headphones sounds and other...
Type C is almost the same MicroUSB with diferent shape... compatible with any charger/pc/any normal USB plug. and since its is the newest tech, most high-end and mid-high devices use type C (every samsung A and S series since 2017, huawei new phones, to mention the 2 first at market share), so its actually a positive thing if you plan to keep this phone a couple years. It will become more popular soon.
About the root/Gcam thing: I did the whole process in like 20 mins (reading carefully every post in the forums) and its working like a charm. It was easier to root than my last samsung. Everything working fine, even OTAs with magisk update trick. Dont be afraid and try the available guides!
Its a great phone for its price
USB-C was new for me, but I got used to it. I cant see any diference between normal micro-usb and this one, if we dont count the shape.
Ι think USB type c cables are sturdier than micro SD ones. I mean the connector not the actual cable. For my Samsung S7 I need every 2-3 months new cable(connector looses or cannot charge-fastcharge). The type c cables that I use in my LG HiFi plus dac,Kodak ektra and mia1 are still like new and show no defect yet.
AwayForSomeone said:
To many defects and problems with this smartphone... like proximity sensor, sd card, headphones sounds and other...
Click to expand...
Click to collapse
This would not surprise me, we're talking about chinese smartphone after all.
However, I haven't seen any big defect report about this.
I'll make deeper researches about it, do you got links to articles/reports talking about incidents with this smartphone?
AwayForSomeone said:
To many defects and problems with this smartphone... like proximity sensor, sd card, headphones sounds and other...
Click to expand...
Click to collapse
I have two mi a1... I receive and make calls like any other cell, prox sensor just works... Sd card is fine, i use it for titanium backup restore and twrp flash... In-ear headphones also working fine
Don't spread misinformation just because you had a bad rom flash, any bad apps, etc...
traianescu said:
I have two mi a1... I receive and make calls like any other cell, prox sensor just works... Sd card is fine, i use it for titanium backup restore and twrp flash... In-ear headphones also working fine
Don't spread misinformation just because you had a bad rom flash, any bad apps, etc...
Click to expand...
Click to collapse
Many devices with defects, not all...
AwayForSomeone said:
Many devices with defects, not all...
Click to expand...
Click to collapse
Yeah just like every other electronic device out there.
Lots are perfectly fine and some are defective.
AwayForSomeone said:
Many devices with defects, not all...
Click to expand...
Click to collapse
Reporting defects and preventing somebody from buying bad products aren't bad things. But it's better with personnal experience and/or written proofs. Do you got real (=justified) reasons to advise me against buying this?
Atronid said:
Reporting defects and preventing somebody from buying bad products aren't bad things. But it's better with personnal experience and/or written proofs. Do you got real (=justified) reasons to advise me against buying this?
Click to expand...
Click to collapse
Just check official forums... i've bought 2 device of xiaomi( Redmi note 3 qualcomm, mi a1) and both with same problem( proximity sensor).
I've not seen these problems on other smartphones before.
Sorry for my bad english

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